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Sample records for tropical africa angola

  1. Ecological consequences of early Late Pleistocene megadroughts in tropical Africa

    E-Print Network [OSTI]

    Reiners, Peter W.

    Ecological consequences of early Late Pleistocene megadroughts in tropical Africa Andrew S. Cohen conditions in tropical Africa occurred in several discrete episodes between 135 and 90 ka, as demonstrated]. This resulted in extraordinarily low lake levels, even in Africa's deepest lakes. On the basis of well dated

  2. Tropical Africa: Land Use, Biomass, and Carbon Estimates for 1980 (NDP-055)

    SciTech Connect (OSTI)

    Brown, S.

    2002-04-16

    This document describes the contents of a digital database containing maximum potential aboveground biomass, land use, and estimated biomass and carbon data for 1980. The biomass data and carbon estimates are associated with woody vegetation in Tropical Africa. These data were collected to reduce the uncertainty associated with estimating historical releases of carbon from land use change. Tropical Africa is defined here as encompassing 22.7 x 10{sup 6} km{sup 2} of the earth's land surface and is comprised of countries that are located in tropical Africa (Angola, Botswana, Burundi, Cameroon, Cape Verde, Central African Republic, Chad, Congo, Benin, Equatorial Guinea, Ethiopia, Djibouti, Gabon, Gambia, Ghana, Guinea, Ivory Coast, Kenya, Liberia, Madagascar, Malawi, Mali, Mauritania, Mozambique, Namibia, Niger, Nigeria, Guinea-Bissau, Zimbabwe (Rhodesia), Rwanda, Senegal, Sierra Leone, Somalia, Sudan, Tanzania, Togo, Uganda, Burkina Faso (Upper Volta), Zaire, and Zambia). The database was developed using the GRID module in the ARC/INFO{trademark} geographic information system. Source data were obtained from the Food and Agriculture Organization (FAO), the U.S. National Geophysical Data Center, and a limited number of biomass-carbon density case studies. These data were used to derive the maximum potential and actual (ca. 1980) aboveground biomass values at regional and country levels. The land-use data provided were derived from a vegetation map originally produced for the FAO by the International Institute of Vegetation Mapping, Toulouse, France.

  3. Tropical timber import export Africa Asia volume Congo India Nigeria Papua New Guinea & the Solomon Islands

    E-Print Network [OSTI]

    Tropical timber import export Africa Asia volume Congo India Nigeria Papua New Guinea & the Solomon/14/2008 12:55:54 PM] #12;Tropical timber import export Africa Asia volume Congo India Nigeria Volume ('000 m3 import export Africa Asia volume Congo India Nigeria Papua New Guinea Reports (commissioned

  4. Tropical Africa: Land use, biomass, and carbon estimates for 1980

    SciTech Connect (OSTI)

    Brown, S.; Gaston, G.; Daniels, R.C.

    1996-06-01

    This document describes the contents of a digital database containing maximum potential aboveground biomass, land use, and estimated biomass and carbon data for 1980 and describes a methodology that may be used to extend this data set to 1990 and beyond based on population and land cover data. The biomass data and carbon estimates are for woody vegetation in Tropical Africa. These data were collected to reduce the uncertainty associated with the possible magnitude of historical releases of carbon from land use change. Tropical Africa is defined here as encompassing 22.7 x 10{sup 6} km{sup 2} of the earth`s land surface and includes those countries that for the most part are located in Tropical Africa. Countries bordering the Mediterranean Sea and in southern Africa (i.e., Egypt, Libya, Tunisia, Algeria, Morocco, South Africa, Lesotho, Swaziland, and Western Sahara) have maximum potential biomass and land cover information but do not have biomass or carbon estimate. The database was developed using the GRID module in the ARC/INFO{sup TM} geographic information system. Source data were obtained from the Food and Agriculture Organization (FAO), the U.S. National Geophysical Data Center, and a limited number of biomass-carbon density case studies. These data were used to derive the maximum potential and actual (ca. 1980) aboveground biomass-carbon values at regional and country levels. The land-use data provided were derived from a vegetation map originally produced for the FAO by the International Institute of Vegetation Mapping, Toulouse, France.

  5. South temperate birds have higher apparent adult survival than tropical birds in Africa

    E-Print Network [OSTI]

    Martin, Thomas E.

    493 South temperate birds have higher apparent adult survival than tropical birds in Africa PennPatrick Inst., DST/NRF Centre of Excellence, Univ. of Cape Town, P/Bag X3, Rondebosch, 7701, South Africa African National Biodiversity Inst., P/Bag X7, Claremont 7735, South Africa, and School of Statistics

  6. The metrics and correlates of physician migration from Africa

    E-Print Network [OSTI]

    Arah, OA

    2007-01-01

    South Africa Kenya Ghana Liberia Gambia Ghana EthiopiaEgypt South Africa Ghana Liberia Cape Verde Algeria MoroccoGuinea-Bissau Angola Liberia Equatorial Guinea Mauritius São

  7. Africa: Prosperous times

    SciTech Connect (OSTI)

    NONE

    1996-08-01

    Political instability and corruption is the rule, rather than the exception, in Africa`s main producing regions, but exploration and production prospects there are bright and attractive to foreign operators. The paper discusses exploration, drilling, resource development, and production in Nigeria, Libya, Algeria, Egypt, Angola, Congo, Gabon, and Tunisia. The other countries of Africa are briefly mentioned, i.e., Cameroon, Cote D`Ivoire, South Africa, Sudan, Namibia, Equatorial Guinea, Eritrea, Zaire, Mozambique, Ghana, Niger, and Seychelles.

  8. Draft January 13, (ver 12) Africas technology leap are we part of the development?

    E-Print Network [OSTI]

    . Examples are countries like South Africa, Kenya, Nigeria and Angola. A driving factor has been Brazilian, ABB, Head of Public Affairs - Sweden and Northern Europe Region "Sun-energy project Sub Saharan Africa

  9. The `Out-of-Africa' hypothesis Peter McCullagh

    E-Print Network [OSTI]

    McCullagh, Peter

    The `Out-of-Africa' hypothesis Peter McCullagh Department of Statistics University of Chicago South DJIBOUTI KENYA COMOROS SEYCHELLES MOZA M B IQUE MADAGASC A R ANGOLA ALGERIA SENEGAL GUINEA-BISSAU GUINEA

  10. Crude Existence: The Politics of Oil in Northern Angola

    E-Print Network [OSTI]

    Reed, Kristin

    2009-01-01

    Nigeria and Angola would capture $3.5 tril- lion in cumulative oil and gasOil and Gas Conference. February 5 –6, 2008. Abuja, Nigeria.

  11. Crude Existence: The Politics of Oil in Northern Angola

    E-Print Network [OSTI]

    Reed, Kristin

    2009-01-01

    the political opposition. Oil wealth finances the generous2005b. Angola: Oil-Backed Loan Will Finance Recoveryincreasingly used oil revenues to finance food imports in

  12. Crude Existence: The Politics of Oil in Northern Angola

    E-Print Network [OSTI]

    Reed, Kristin

    2009-01-01

    Tullow Oil won a bid in the December 2005 licensing roundoil, Cabinda’s Central remained unclaimed in Angola’s 2007 –2008 licensinglicensing round for smaller onshore opportuni- ties in the Congo and Kwanza Basins, the elites had formed domestic firms for oil

  13. Crude Existence: The Politics of Oil in Northern Angola

    E-Print Network [OSTI]

    Reed, Kristin

    2009-01-01

    aimed at securing oil resources in the Gulf of Guinea (of (as yet unproven) oil resources in Angola (EIA 2008; Lylemost valuable natural resource: oil. But oil extraction—both

  14. Crude Existence: The Politics of Oil in Northern Angola

    E-Print Network [OSTI]

    Reed, Kristin

    2009-01-01

    towed the Greater Plutonio FPSO to Angola from Korea in 71ACC Atlantic (Xicomba) FPSO, 25 Australia, 140 310 / IndexGeorgia, 210 Girassol FPSO, 25 Global Development Alliance (

  15. Crude Existence: The Politics of Oil in Northern Angola

    E-Print Network [OSTI]

    Reed, Kristin

    2009-01-01

    iolence as Angola nears peak oil production and a widerproduction cuts may forestall peak oil by a few years, butAngolan oil production capacity is expected to peak between

  16. Crude Existence: The Politics of Oil in Northern Angola

    E-Print Network [OSTI]

    Reed, Kristin

    2009-01-01

    Petroleum. 2007a. Angola LNG: A Lesson in How to Win Friendsand Zoe Eisenstein. 2004. LNG Plants Seed of Hope in Soyo.a liquefied natural gas (LNG) plant to process and export

  17. Crude Existence: The Politics of Oil in Northern Angola

    E-Print Network [OSTI]

    Reed, Kristin

    2009-01-01

    business/2077836.stm. British Petroleum. 2007a. Angola LNG:such as BP Amoco BV, British Petroleum Exploration LDA, ElfElf Aqui- taine, British Petroleum, Braspetro, Total, Cities

  18. IMPACTS OF GREENHOUSE GAS AND PARTICULATE EMISSIONS FROM WOODFUEL PRODUCTION AND END-USE IN SUB-SAHARAN AFRICA

    E-Print Network [OSTI]

    Kammen, Daniel M.

    resources like Gabon, Nigeria, and Angola, biomass constitutes the majority of national energy consumption-SAHARAN AFRICA Robert Bailis1 , David Pennise2 , Majid Ezzati3 , Daniel M. Kammen1,4 , Evans Kituyi5 1 Energy & African Center for Technology Studies, Nairobi, Kenya ABSTRACT: Household energy in sub-Saharan Africa

  19. Temporal variations in temperature over Northeastern Africa 

    E-Print Network [OSTI]

    Peterson, Robby Douglas

    1994-01-01

    unavailable data from Northeastern Africa from 1900 to 1950, the data are analyzed to determine whether thermal patterns are identifiable in maximum and minimum temperatures over smaller scales in the tropics and sub-tropics. First, the Alexandersson Test...

  20. Africa: the emphasis is exploration

    SciTech Connect (OSTI)

    Not Available

    1980-08-15

    Individual country reports on drilling, oil and gas production, and petroleum exploration and reserves are given for Africa. Nigeria was the continent's largest oil producer in 1979, averaging 2.3 million bpd, followed closely by Libya with 2.07 million bpd. Algeria cut production of crude oil in 1979 to a level of 1,194,350 bpd, and increased gas production to 2031 mmcfd. In Egypt, the return of Israeli-occupied oil fields and a surge in productive capacity enabled production averaging 524,000 bpd. Brief country reports are included for Gabon, Angola, Republic of the Congo, Cameroun, Tunisia, Morocco, Zaire, Ivory Coast, Ghana, Niger, Chad, Republic of South Africa, Sudan, Tanzania, Equatorial Guinea, Seychelles Islands, Mauritania, Republic of Mali, Benin, Kenya, Madagascar, Botswana, Gambia, Mozambique, and Senegal.

  1. An Evaluation of English as a Foreign Language Textbooks for Secondary Schools in Angola

    E-Print Network [OSTI]

    Henriques, Simao

    2009-01-01

    for vocabulary learning, and points of grammar). The Angola Secondary Schools employ two textbooks: One for Grade 7 and another one for Grade 8. Both textbooks were designed by the Ministry of Education of Angola under the National Institute for the Development...

  2. Angola, New York: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EAandAmminex A S Jump to:Angola on the Lake, New York: Energy Resources

  3. Energy resources in southern Africa: a select bibliography

    SciTech Connect (OSTI)

    Cavan, A.

    1981-01-01

    The aims, progress, and possibilities involved in Southern Africa's energy development are the subject of this 473-item bibliography. The primary items of information described in this document are relatively recent (1975-81), originate from both indigenous and international sources, and are mostly in English, although a few are in French and Portuguese. The presented information focuses on the African continent, the Southern African region, and the nations of Angola, Botswana, Lesotho, Malawi, Mozambique, Namibia, Swaziland, South Africa, Tanzania, Zambia, and Zimbabwe. The energy source topics include alcohol, coal, gas, oil, solar, uranium, water, wind, and wood; as well as a general energy-development category.

  4. Africa: Unrest and restrictive terms limit abundant potential. [Oil and gas exploration and development in Africa

    SciTech Connect (OSTI)

    Not Available

    1993-08-01

    This paper summarizes the drilling and exploration activity of the oil and gas industries of Egypt, Libya, Tunisia, Algeria, Morocco, Nigeria, Cameroon, Gabon, the Congo, Angola, and South Africa. Information is provided on current and predicted trends in well drilling activities (both onshore and offshore), numbers of new wells, footage information, production statistics and what fields accounted for this production, and planned new exploration activities. The paper also describes the current status of government policies and political problems affecting the oil and gas industry.

  5. Mother Africa

    E-Print Network [OSTI]

    Abdulmelik, Nebila

    2009-01-01

    and strong LIVE LONG MOTHER AFRICA! About the author: NebilaMOTHER AFRICA Ailing pains that never seem to go awaydespite the strife Mother AFRICA Although they will burden

  6. Crude Existence: The Politics of Oil in Northern Angola

    E-Print Network [OSTI]

    Reed, Kristin

    2009-01-01

    2005. Bassey, Nnimmo. 2000. “Oil and Gas in Africa. ” Paperat the Gulf of Guinea Oil and Gas Conference. February 5 –6,Mercury from Discharges from Oil and Gas Platforms. http://

  7. Hyperspectral Remote Sensing of Tropical Grass Quality and Quantity

    E-Print Network [OSTI]

    Hyperspectral Remote Sensing of Tropical Grass Quality and Quantity Onisimo Mutanga 7 April 2004, The Netherlands Prof. W. J. Bond University of Cape Town, South Africa #12;Hyperspectral Remote Sensing 1.2 Hyperspectral remote sensing

  8. The QBO's influence on lightning production and deep convection in the tropics 

    E-Print Network [OSTI]

    Hernandez, Celina Anne

    2009-05-15

    . THE QBO?S INFLUENCE ON LIGHTING PRODUCTION IN THE TROPICS ................................................................................................................ 10 3.1 Africa... lightning flash densities observed over land (Fig.8). Therefore, this analysis focuses on four land regions: Africa, India, Maritime continent/Australia, and South America. 3.1 Africa West minus east flash density anomalies for DJF (Fig. 9a) show...

  9. Angola on the Lake, New York: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EAandAmminex A S Jump to:Angola on the Lake, New York: Energy Resources Jump

  10. Angola-Nationally Appropriate Mitigation Actions (NAMAs) in the Congo Basin

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop IncIowaWisconsin: EnergyYork Jump| Open Energy Information Angola-Nationally

  11. A westward extension of the warm pool leads to a westward extension of the Walker circulation, drying eastern Africa

    E-Print Network [OSTI]

    Williams, Park

    , drying eastern Africa A. Park Williams · Chris Funk Received: 3 June 2010 / Accepted: 21 December 2010 Ó Africa. In recent decades (1980­2009), this response has suppressed convection over tropical eastern Africa, decreasing precipitation during the `long-rains' season of March­June. This trend toward drought

  12. Oil and gas developments in central and southern Africa in 1987

    SciTech Connect (OSTI)

    Hartman, J.B.; Walker, T.L.

    1988-10-01

    Significant rightholding changes took place in central and southern Africa during 1987. Angola, Benin, Congo, Gabon, Ghana, Guinea, Guinea Bissau, Mauritania, Seychelles, Somali Republic, Tanzania, Zaire, and Zambia announced awards or acreage open for bidding. Decreases in exploratory rightholdings occurred in Cameroon, Congo, Cote d'Ivoire, Equatorial Guinea, Gabon, Kenya, Namibia, South Africa, and Tanzania. More wells and greater footage were drilled in 1987 than in 1986. Total wells increased by 18% as 254 wells were completed compared to 217 in 1986. Footage drilled during the year increased by 46% as about 1.9 million ft were drilled compared to about 1.3 million ft in 1986. The success rate for exploration wells in 1987 improved slightly to 36% compared to 34% in 1986. Significant discoveries were made in Nigeria, Angola, Congo, and Gabon. Seismic acquisition in 1987 was the major geophysical activity during the year. Total oil production in 1987 was 773 million bbl (about 2.1 million b/d), a decrease of 7%. The decrease is mostly due to a 14% drop in Nigerian production, which comprises 60% of total regional production. The production share of OPEC countries (Nigeria and Gabon) versus non-OPEC countries of 67% remained unchanged from 1986. 24 figs., 5 tabs.

  13. Africa Studie CentrumAfrica Studie CentrumAfrica Studie CentrumAfrica Studie Centrum Tracking Development Falsification Award: 5000

    E-Print Network [OSTI]

    Africa Studie CentrumAfrica Studie CentrumAfrica Studie CentrumAfrica Studie Centrum Tracking-Saharan Africa: the primacy of policy', on the TD project website (www.trackingdevelopment.net) under the rubric

  14. Vote Buying and Accountability in Democratic Africa

    E-Print Network [OSTI]

    Kramon, Eric

    2013-01-01

    Africa . . . . . . . . . . . . . . . . . . . . . . . . 66Clientelism and the Quality of Democracy in Africa . . . .Africa . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

  15. An overview of coupled GCM biases in the tropics Ingo Richter1,2

    E-Print Network [OSTI]

    tropical South America and un- derpredict it over tropical Africa. Despite cold SST biases over much), excessive shortwave solar radiation due to insufficient low- level cloud, and weak oceanic stratification biases affect seasonal forecasts and climate change projections, in order to maximize their utility

  16. Volunteer computers in homes to fight against Malaria in Africa

    E-Print Network [OSTI]

    2006-01-01

    "Africa@home, a project conceived and coordinated by CERN1, was launched publicly this week. It is recruiting volunteer computers in homes and offices to run a computer-intensive simulation program called MalariaControl.net, developed by researchers at the Swiss Tropical Institute (STI)" (1 page)

  17. Biodiversity Conservation in Sub-Saharan Africa: A Case Study of the African Dwarf Crocodiles (Osteolaemus Spp.) 

    E-Print Network [OSTI]

    Smolensky, Nicole Limunga

    2014-11-20

    Overexploitation of wildlife is a leading threat to biodiversity in tropical Africa. Effective management requires integrating information on the extent of exploitation, distribution, and status of exploited species. I ...

  18. West Africa Emerges as Leading Region in Africa for Renewable...

    Open Energy Info (EERE)

    West Africa Emerges as Leading Region in Africa for Renewable Energy and Energy Efficiency Home > Groups > Clean and Renewable Energy Dc's picture Submitted by Dc(266) Contributor...

  19. Artful Adventures Arts of Africa

    E-Print Network [OSTI]

    Rowley, Clarence W.

    Artful Adventures Arts of Africa #12;sculpture AfricA, one of the oldest inhabited areas on earth;Headrests Tsonga artist (South Africa or Mozambique), Double headrest with snuff containers (isigqiki), late Africa. People rested their heads on them to protect their elaborate hairstyles while they slept

  20. Climate and the Tropical Atlantic

    E-Print Network [OSTI]

    Climate and the Tropical Atlantic Presenter: Rick Lumpkin AOML Program Review 4-6 March 2014 What drives Tropical Atlantic climate changes and what are their impacts? #12;AOML Program Review2 Climate and the Tropical Atlantic Why this matters to NOAA and to society: Climate variability in the Tropical Atlantic

  1. CIGUATERA: TROPICAL FISH POISONING

    E-Print Network [OSTI]

    CIGUATERA: TROPICAL FISH POISONING Marine Biological I · ·' iw« L I B R >*· ** Y JUL 3 -1350 WOODS POISONING By William Arcisz, Bacteriologist, Formerly with the Fishery Research Laboratory Branch in which Fish Poisoning is Prevalento........... 3 Symptoms of Ciguatera ...... 00

  2. Africa's Transport Infrastructure Mainstreaming Maintenance and...

    Open Energy Info (EERE)

    Africa's Transport Infrastructure Mainstreaming Maintenance and Management Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Africa's Transport Infrastructure...

  3. Country Energy Profile, South Africa

    SciTech Connect (OSTI)

    1995-08-01

    This country energy profile provides energy and economic information about South Africa. Areas covered include: Economics, demographics, and environment; Energy situation; Energy structure; Energy investment opportunities; Department of Energy (DOE) programs in South Africa; and a listing of International aid to South Africa.

  4. Dancing Africa in Bahia : dance, embodied authenticity and the consumption of "Africa" in Bahia, Brazil

    E-Print Network [OSTI]

    Ahlberg, Meredith A.

    2011-01-01

    Paulla A. 2002. Performing Africa. Princeton, NJ: Princeton30 (3): 847–861. Dzidzienyo, Anani. 1999. “Africa-Brazil: ‘Ex Africa Semper Aliquid Novi’? ” In Black Brazil: Culture,

  5. Internet Performance to Africa

    SciTech Connect (OSTI)

    Cottrell, L

    2003-10-01

    We report the first results ever for real-time Internet performance to Africa using the PingER methodology. Multiple monitoring hosts were used to enable comparisons with performance from different parts of the world. From these preliminary measurements, we have found that Internet packet losses to some African sites in recent months range from very poor to bad (> 12%), some getting better, others are holding steady or getting worse. This, together with the average monthly Round Trip Times, imply end-to-end maximum TCP throughputs that are order of magnitudes different between countries in the region. Africa is shown to be far from the Internet performance in industrialized nations due to the poor infrastructure in place today. These monitoring efforts can provide valuable information to analyze the relative rates of future improvement and today they help us to quantify the digital divide and can provide quantitative information to policy makers.

  6. Grain Fish Money Financing Africa's Green and Blue Revolutions Financing Africa's Green and Blue Revolutions

    E-Print Network [OSTI]

    Grain Fish Money Financing Africa's Green and Blue Revolutions 1 Financing Africa's Green and Blue Revolutions GRAIN FISH MONEY AFRICA PROGRESS REPORT 2014 #12;AFRICA PROGRESS REPORT 2014 2 #12;Grain Fish Money Financing Africa's Green and Blue Revolutions 3 #12;#12;Grain Fish Money Financing Africa's Green

  7. Astrophysics in Southern Africa

    E-Print Network [OSTI]

    Patricia A. Whitelock

    2007-07-06

    The government of South Africa has identified astronomy as a field in which their country has a strategic advantage and is consequently investing very significantly in astronomical infrastructure. South Africa now operates a 10-m class optical telescope, the Southern African Large Telescope (SALT), and is one of two countries short listed to host the Square Kilometre Array (SKA), an ambitious international project to construct a radio telescope with a sensitivity one hundred times that of any existing telescope. The challenge now is to produce an indigenous community of users for these facilities, particularly from among the black population which was severely disadvantaged under the apartheid regime. In this paper I briefly describe the observing facilities in Southern Africa before going on to discuss the various collaborations that are allowing us to use astronomy as a tool for development, and at the same time to train a new generation of astronomers who will be well grounded in the science and linked to their colleagues internationally.

  8. Interval eigenproblem in tropical and fuzzy algebra Tolerance eigenproblem in tropical algebra

    E-Print Network [OSTI]

    Mitchener, Paul

    Interval eigenproblem in tropical and fuzzy algebra Tolerance eigenproblem in tropical algebra Tolerance eigenproblem in fuzzy algebra Tolerance interval eigenvectors in tropical and fuzzy algebra Martin Workshop Birmingham, May 16, 2013 #12;Interval eigenproblem in tropical and fuzzy algebra Tolerance

  9. Geography 102, Spring 2007 Tropical Climatology

    E-Print Network [OSTI]

    Office: Bunche Hall 1176 Phone: 206-4590/825-1071, email:raphael@geog.ucla.edu Office Hours: M/W 10:30p the development of Tropical Cli- mates - the laws that govern the movement of air; solar radiation in the Tropics in the Tropics - the Hadley Cells, the Trade Winds, the InterTropical Convergence Zone, the Tropical ocean

  10. GROWTH OF SOUTH AFRICAN AFRICA' ~-' ,, I

    E-Print Network [OSTI]

    GROWTH OF SOUTH AFRICAN FISHERIES -SQUTH-: WEST .-' AFRICA' ~-' ,, I I , I :--. .,' UN I .............................................. Regrouping of Interests ······························ Fisheries Development Corporation of South Africa, Ltd and the trawling interests, respectively. The quasi-official Fisheries Develop- ment Corporation of South Africa

  11. Biotechnology Adoption in Sub-Saharan Africa

    E-Print Network [OSTI]

    Midling, Michael B

    2011-01-01

    bioforti?ed crops in South Africa. ” AgBioForum, 10(3), 184–blog/ 2010/jun/21/agriculture-africa. [6] Borlaug, Norman. “Adoption in Sub-Saharan Africa Michael Baihua Midling [11

  12. Greenhouse gas emissions in Sub-Saharan Africa

    SciTech Connect (OSTI)

    Graham, R.L.; Perlack, R.D.; Prasad, A.M.G.; Ranney, J.W.; Waddle, D.B.

    1990-11-01

    Current and future carbon emissions from land-use change and energy consumption were analyzed for Sub-Saharan Africa. The energy sector analysis was based on UN energy data tapes while the land-use analysis was based on a spatially-explicit land-use model developed specifically for this project. The impacts of different energy and land-use strategies on future carbon emissions were considered. (A review of anthropogenic emissions of methane, nitrous oxides, and chlorofluorocarbons in Sub-Saharan Africa indicated that they were probably minor in both a global and a regional context. The study therefore was focused on emissions of carbon dioxide.) The land-use model predicts carbon emissions from land use change and the amount of carbon stored in vegetation (carbon inventory) on a yearly basis between 1985 and 2001. Emissions and inventory are modeled at 9000 regularly-spaced point locations in Sub-Saharan Africa using location-specific information on vegetation type, soils, climate and deforestation. Vegetation, soils, and climate information were derived from continental-scale maps while relative deforestation rates(% of forest land lost each year) were developed from country-specific forest and deforestation statistics (FAO Tropical Forest Resources Assessment for Africa, 1980). The carbon emissions under different land use strategies in Sub-Saharan Africa were analyzed by modifying deforestation rates and altering the amount of carbon stored under different land uses. The considered strategies were: preservation of existing forests, implementation of agroforestry, and establishment of industrial tree plantations. 82 refs., 16 figs., 25 tabs.

  13. Africa Infrastructure Country Diagnostic Documents: Interactive...

    Open Energy Info (EERE)

    Africa Infrastructure Country Diagnostic Documents: Interactive MAP in PDF, all Countries Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Africa Infrastructure Country...

  14. CAPREx Programme Information Cambridge in Africa

    E-Print Network [OSTI]

    CAPREx Programme Information Cambridge in Africa The Cambridge in Africa (CiA) Programme in East Africa- Kenya, Rwanda, Tanzania and Uganda, that supports the training of African doctoral and post-doctoral researchers. It aims to strengthen Africa's own capacity for a sustainable research

  15. Is there an association between PEPFAR funding and improvement in national health indicators in Africa? A retrospective study

    E-Print Network [OSTI]

    Duber, Herbert C; Coates, Thomas J; Szekeras, Greg; Kaji, Amy H; Lewis, Roger J

    2010-01-01

    Angola, Cameroon, Comoros, Gambia, Malawi, Mali, Sao TomeAfrican Republic, Chad, Comoros, Congo, Democratic RepublicAfrican Republic Chad Comoros Congo Democratic Republic of

  16. Making Africa's Power Sector Sustainable: An Analysis of Power...

    Open Energy Info (EERE)

    Making Africa's Power Sector Sustainable: An Analysis of Power Sector Reforms in Africa Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Making Africa's Power Sector...

  17. Is The Financial Crisis Playing Against China In Africa?

    E-Print Network [OSTI]

    NOLA NOUCK, Lucien

    2009-01-01

    University. His main area of research is China-Africa andIndia-Africa relations.Playing Against China In Africa? Introduction Since they

  18. Wildlife Sustainability and Human Food Security in Cameroon, Central Africa

    E-Print Network [OSTI]

    Weinbaum, Karen Zohar

    2012-01-01

    consumption in rural Africa. Proceedings Of The NationalHouseholds in Gabon, Central Africa. Conservation BiologyHouseholds in Gabon, Central Africa. Conservation Biology

  19. Product Quality Assurance for Off-Grid Lighting in Africa

    E-Print Network [OSTI]

    Mills, Evan; World Bank

    2008-01-01

    for Off-Grid Lighting in Africa Conference Proceedingsfrom the Lighting Africa Product Quality Assurance WorkshopSUMMARY Background Lighting Africa is a World Bank Group

  20. The Missing Connection: ICTs and Democracy in Africa

    E-Print Network [OSTI]

    Laverty, Alexander Ryan

    2012-01-01

    the countries of Sub-Saharan Africa to use digital tools toof Expression in Africa,” in Communicating Democracy: ThePromoting Democracy in Africa. ” Democratization 7, (2000):

  1. The Role of Wave Energy Accumulation in Tropical Cyclogenesis over the Tropical North Atlantic

    E-Print Network [OSTI]

    Webster, Peter J.

    The Role of Wave Energy Accumulation in Tropical Cyclogenesis over the Tropical North Atlantic "wave energy"). Relative vorticity increases locally leading to an increase in the likelihood scales of interaction. The importance of wave energy accumulation for tropical cyclogenesis

  2. Tropical bases by regular projections

    E-Print Network [OSTI]

    Hept, Kerstin

    2007-01-01

    We consider the tropical variety $\\mathcal{T}(I)$ of a prime ideal $I$ generated by the polynomials $f_1, ..., f_r$ and revisit the regular projection technique introduced by Bieri and Groves from a computational point of view. In particular, we show that $I$ has a short tropical basis of cardinality at most $r + \\codim I + 1$ at the price of increased degrees, and we provide a computational description of these bases.

  3. AFRICA HEALTH PLACEMENTS Job Specification Research Officer (intern)

    E-Print Network [OSTI]

    AFRICA HEALTH PLACEMENTS Job Specification ­ Research Officer (intern) Basics Job Title, Johannesburg Brief Description of Africa Health Placements Africa Health Placements (AHP in alignment to planned solutions. #12;AFRICA HEALTH PLACEMENTS Job Specification ­ Research Officer

  4. West Africa & the New European Common Fisheries Policy: Impacts & Implications

    E-Print Network [OSTI]

    Seto, Katherine

    2015-01-01

    West Africa & the New European Common Fisheries Policy:affected fisheries in West Africa, and how recently enactedWorld War II. 6 West Africa’s close proximity to Europe, its

  5. Product Quality Assurance for Off-Grid Lighting in Africa

    E-Print Network [OSTI]

    Mills, Evan; World Bank

    2008-01-01

    developing photovoltaic standards in Africa will beAfrica elected to use the technical specifications issued by the Photovoltaic

  6. Central and southern Africa

    SciTech Connect (OSTI)

    McGrew, H.J.

    1981-10-01

    Exploration in central and southern Africa continued to expand during 1980. The greatest concentration of activity was in Nigeria. However, there was considerable increase in the level of exploratory work in Cameroon and Congo. Significant new finds have been made in Ivory Coast. Geological and geophysical activity was carried out in 18 of the countries, with those in the western part having the largest share. Seismic work involved 225 party months of operation. Most of this time was spent on land, but marine operations accounted for 73,389 km of new control. Gravity and magnetic data were recorded during the marine surveys, and several large aeromagnetic projects were undertaken to obtain a total of 164,498 line km of data. Exploratory and development drilling accounted for a total of 304 wells and 2,605,044 ft (794,212 m) of hole. The 92 exploratory wells that were drilled resulted in 47 oil and gas discoveries. In development drilling 89% of the 212 wells were successful. At the end of the year, 27 exploratory wells were underway, and 34 development wells were being drilled for a total of 61. Oil production from the countries that this review covers was 918,747,009 bbl in 1980, a drop of about 9% from the previous year. Countries showing a decline in production were Nigeria, Gabon, Cabinda, and Zaire. Increases were recorded in Cameroon, Congo, and Ghana. A new country was added to the list of producers when production from the Belier field in Ivory Coast came on stream. 33 figures, 15 tables.

  7. Women Changing Africa: Barnard's Third Annual Global Symposium Johannesburg, South Africa

    E-Print Network [OSTI]

    1 Women Changing Africa: Barnard's Third Annual Global Symposium Johannesburg, South Africa March Banking Division, Development Bank of Southern Africa It really is a tremendous honor to welcome you all to South Africa and to this very special symposium. We have been incredibly honored to see the guest list

  8. Women Changing Africa: Barnard's Third Annual Global Symposium Johannesburg, South Africa

    E-Print Network [OSTI]

    1 Women Changing Africa: Barnard's Third Annual Global Symposium Johannesburg, South Africa March in South Africa. She, in her key role, saw to it that the World Cup was a smoothly run success and let me of the franchise at Coca Cola, South Africa. She has many times been honoured for her talents in advertising

  9. Welcome to the Third World Network-Africa (TWN-Africa) Blog

    E-Print Network [OSTI]

    Welcome to the Third World Network- Africa (TWN-Africa) Blog September 24, 2008 15:25:42 PM Press Release >> UNCTAD 2008 Economic Development in Africa report on Trade LIberalisation Posted report PRESS RELEASE Trade liberalization has not improved Africa's export performance, says 2008 UNCTAD

  10. Biotechnology Adoption in Sub-Saharan Africa

    E-Print Network [OSTI]

    Midling, Michael B

    2011-01-01

    Commercial Application of GMO Crops in Africa: Burkina Faso’Sub- Saharan Africa [ 11]. GMO crops like Bt cotton provideof the key problems of the GMO movement is the privatization

  11. COOPENER Development and Energy in Africa

    E-Print Network [OSTI]

    DEA COOPENER Development and Energy in Africa Contract no. EIE/04/201/s07.43094 DEA Development and Energy in Africa Intelligent Energy ­ Europe (IEE) Type of action: COOPENER Key action: VKA11 is part of the COOPENER project "Development and Energy in Africa (DEA)" initiated on 1 May 2005

  12. Africa House PATRICK BROWN, Faculty Director

    E-Print Network [OSTI]

    Hayden, Nancy J.

    Africa House PATRICK BROWN, Faculty Director LOKANGAKA LOSAMBE, Faculty Director PIERRETTE LUMUMBA of African cultures' role in the world. Africa House will be a valuable program in helping students develop component, Africa House offers students shared experiences as well as opportunities for participation

  13. SCIENCE RESEARCH POLICY IN SOUTH AFRICA

    E-Print Network [OSTI]

    Blake, Edwin

    SCIENCE RESEARCH POLICY IN SOUTH AFRICA George F R Ellis A DISCUSSION DOCUMENT for the Royal Society of South Africa February 14, 2001 #12;i Preface This science policy discussion document has been written by Prof G F R Ellis (University of Cape Town) on behalf of the Royal Society of South Africa

  14. THE IMPACTS OF CLIMATE CHANGE ON AFRICA

    E-Print Network [OSTI]

    Bateman, Ian J.

    THE IMPACTS OF CLIMATE CHANGE ON AFRICA by Mike Hulme Declan Conway P. Mick Kelly S. Subak Tom E. Downing CSERGE Working Paper GEC 95-12 #12;THE IMPACTS OF CLIMATE CHANGE ON AFRICA by Mike Hulme Declan Affairs, and Ministry of the Environment and Natural Resources, for the "Climate and Africa" project

  15. SOUTH AFRICA VCU SUMMER STUDY ABROAD | 2015

    E-Print Network [OSTI]

    Gough, Christopher M.

    SOUTH AFRICA VCU SUMMER STUDY ABROAD | 2015 The Global Education Office, the African American Africa. The program begins in the town of Pietermaritzburg, the capital of KwaZulu-Natal province into an exciting field of global respon- sibility and emerging democracy in South Africa. To register, visit: go

  16. Estimating tropical cyclone precipitation risk in Texas

    E-Print Network [OSTI]

    Zhu, Laiyin

    This paper uses a new rainfall algorithm to simulate the long-term tropical cyclone precipitation (TCP) climatology in Texas based on synthetic tropical cyclones generated from National Center for Atmospheric Research/National ...

  17. Climate Theme Global Tropical Moored Buoy Array

    E-Print Network [OSTI]

    Climate Theme Global Tropical Moored Buoy Array: Observing, Understanding Observing System for Climate #12;Performance 4 Global Tropical Moored Buoy Array: A coordinated multi-national effort to develop and sustain moored buoy observing systems for climate research

  18. The Dynamics and Predictability of Tropical Cyclones 

    E-Print Network [OSTI]

    Sippel, Jason A.

    2010-01-15

    Through methodology unique for tropical cyclones in peer-reviewed literature, this study explores how the dynamics of moist convection affects the predictability of tropical cyclogenesis. Mesoscale models are used to perform ...

  19. The multiple vortex nature of tropical cyclogenesis 

    E-Print Network [OSTI]

    Sippel, Jason Allen

    2005-02-17

    This thesis contains an observational analysis of the genesis of Tropical Storm Allison (2001). Using a paradigm of tropical cyclone formation as the superposition of potential vorticity (PV) anomalies, the importance of different scales of PV...

  20. A Ventilation Index for Tropical Cyclones

    E-Print Network [OSTI]

    Tang, Brian

    An important environmental control of both tropical cyclone intensity and genesis is vertical wind shear. One hypothesized pathway by which vertical shear affects tropical cyclones is midlevel ventilation—or the flux of ...

  1. 8, 42214266, 2008 Tropical forest fire

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    ACPD 8, 4221­4266, 2008 Tropical forest fire emissions R. J. Yokelson et al. Title Page Abstract Chemistry and Physics Discussions The tropical forest and fire emissions experiment: laboratory fire Publications on behalf of the European Geosciences Union. 4221 #12;ACPD 8, 4221­4266, 2008 Tropical forest fire

  2. Geography 102, Spring 2006 Tropical Climatology

    E-Print Network [OSTI]

    Hours: Tu/Th 9:30p.m-10:30p.m., and by appointment Office: Bunche Hall 1176 Phone: 206 that underly the development of Tropical Cli- mates - the laws that govern the movement of air; solar radiation Circulation in the Tropics - the Hadley Cells, the Trade Winds, the InterTropical Convergence Zone

  3. Geography 102, Spring 2008 Tropical Climatology

    E-Print Network [OSTI]

    Hall 1176 Phone: 206-4590/825-1071, email:raphael@geog.ucla.edu Office Hours: M/W 10:00a.m-11:00a Cli- mates - the laws that govern the movement of air; solar radiation in the Tropics; temperature - the Hadley Cells, the Trade Winds, the InterTropical Convergence Zone, the Tropical ocean circulation

  4. NRF Republic of South Africa

    E-Print Network [OSTI]

    Dintrans, Boris

    led to a new cooperation programme (PICs) dealing with air pollution and climate change in South issues 14 2.2.1 Atmospheric pollution and Climate change in southern Africa 14 2.2.2. Troposphere ozone for characterisation of pollutant transport 30 3.2.2 Modelling activities 33 4- Laboratories and scientists involved

  5. Africa gaining importance in world LPG trade

    SciTech Connect (OSTI)

    Haun, R.R.; Otto, K.W.; Whitley, S.C.

    1997-05-12

    Major LPG projects planned or under way in Africa will increase the importance of that region`s presence in world LPG trade. Supplies will nearly double between 1995 and 2005, at which time they will remain steady for at least 10 years. At the same time that exports are leveling, however, increasing domestic demand for PG is likely to reduce export-market participation by Algeria, Nigeria, Egypt, and Libya. The growth of Africa`s participation in world LPG supply is reflected in comparisons for the next 15--20 years. Total world supply of LPG in 1995 was about 165 million metric tons (tonnes), of which Africans share was 7.8 million tonnes. By 2000, world supply will grow to slightly more than 200 million tonnes, with Africa`s share expected to increase to 13.2 million tonnes (6.6%). And by 2005, world LPG supply will reach nearly 230 million tonnes; Africa`s overall supply volumes by that year will be nearly 16.2 million tonnes (7%). World LPG supply for export in 1995 was on order of 44 million tonnes with Africa supply about 4 million tonnes (9%). By 2005, world export volumes of LPG will reach nearly 70 million tonnes; Africa`s share will have grown by nearly 10 million tonnes (14.3%).

  6. Voices of Africa Magazine The Voices of Africa Magazine proclaims that it has been founded and is dedicated to

    E-Print Network [OSTI]

    Singh, Jaswinder Pal

    Voices of Africa Magazine PREAMBLE The Voices of Africa Magazine proclaims that it has been founded concerning African Diaspora at and beyond Princeton ARTICLE I Voices of Africa Section 1. The name of this student organization shall be the VOICES OF AFRICA Section 2. The words "VOICES OF AFRICA" shall

  7. The tropical double description method

    E-Print Network [OSTI]

    Allamigeon, Xavier; Goubault, Eric

    2010-01-01

    We develop a tropical analogue of the classical double description method allowing one to compute an internal representation (in terms of vertices) of a polyhedron defined externally (by inequalities). The heart of the tropical algorithm is a characterization of the extreme points of a polyhedron in terms of a system of constraints which define it. We show that checking the extremality of a point reduces to checking whether there is only one minimal strongly connected component in an hypergraph. The latter problem can be solved in almost linear time, which allows us to eliminate quickly redundant generators. We report extensive tests (including benchmarks from an application to static analysis) showing that the method outperforms experimentally the previous ones by orders of magnitude. The present tools also lead to worst case bounds which improve the ones provided by previous methods.

  8. Biotechnology Adoption in Sub-Saharan Africa

    E-Print Network [OSTI]

    Midling, Michael B

    2011-01-01

    Nigeria lacks Berkeley Undergraduate Journal: Volume 24, Issue 3 Biotechnology Adoption in Sub-Saharan Africa Michael Baihua Midling regular energy,

  9. S. AFRICA USES FIRE CRACKERS TO SCARE OFF SEALS

    E-Print Network [OSTI]

    AFRICA S. AFRICA USES FIRE CRACKERS TO SCARE OFF SEALS The South African purse -seine fisheries of ammunition per month tofishermen. Because of the great potential harm to the seal, South Africa's Division

  10. SPRING 2012 STUDY ABROAD in CAPE TOWN, SOUTH AFRICA

    E-Print Network [OSTI]

    Alpay, S. Pamir

    SPRING 2012 STUDY ABROAD in CAPE TOWN, SOUTH AFRICA Want to find out studying the multiple concerns facing South Africa as it strives to become one. Take three academically engaging courses: The History & Politics of South Africa

  11. Inventing Hoodia: Vulnerabilities and Epistemic Citizenship in South Africa

    E-Print Network [OSTI]

    Foster, Laura A.

    2011-01-01

    feminisms in the context of Southern Africa. Her researchupon her work in Southern Africa over the past decade as ain Botswana and South Africa on issues of domestic violence

  12. Instructional Cinema in Colonial Africa: An Historical Reappraisal

    E-Print Network [OSTI]

    Shaka, Femi Okiremuete

    1999-01-01

    1937. The Africa and the Cinema, London: The Edinburgh Houseeds) _ ( 1983) British Cinema History, London: WeidenfeldJ. (1966) "Africa and the Cinema," African Statesman, No.2 (

  13. United States and South Africa Sign Agreement on Cooperation...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    South Africa Sign Agreement on Cooperation in Nuclear Energy Research and Development United States and South Africa Sign Agreement on Cooperation in Nuclear Energy Research and...

  14. South Africa - Greenhouse Gas Emission Baselines and Reduction...

    Open Energy Info (EERE)

    South Africa - Greenhouse Gas Emission Baselines and Reduction Potentials from Buildings Jump to: navigation, search Name South Africa - Greenhouse Gas Emission Baselines and...

  15. Before House Subcommittee on Africa, Global Health, Global Human...

    Office of Environmental Management (EM)

    House Subcommittee on Africa, Global Health, Global Human Rights, and International Organizations, Committee on Foreign Affairs Before House Subcommittee on Africa, Global Health,...

  16. The Role of the Tropics in Abrupt Climate Changes

    SciTech Connect (OSTI)

    Fedorov, Alexey

    2013-12-07

    Topics addressed include: abrupt climate changes and ocean circulation in the tropics; what controls the ocean thermal structure in the tropics; a permanent El Niño in paleoclimates; the energetics of the tropical ocean.

  17. Raw Encounters: Chinese Managers, African Workers and the Politics of Casualization in Africa’s Chinese Enclaves

    E-Print Network [OSTI]

    Lee, Ching Kwan

    2009-01-01

    WP 2009-14 Raw Encounters: Chinese Managers, African WorkersCasualization in Africa’s Chinese Enclaves by Ching Kwan Leeapproval. Raw Encounters: Chinese Managers, African Workers

  18. The Other Side of Africa, with Children

    E-Print Network [OSTI]

    Hobbs, Jerry R.

    flat, nothing spectacular. It is culture and history that West Africa has to o#er. Mali, where we spent. It was the center of the great medieval African empires of Ghana, Mali, and Songhai. Its cities --- Timbuktu, Djenn the architecture of the cities and villages. Mali became a French colony in the 1890s, but as in all of West Africa

  19. The Other Side of Africa, with Children

    E-Print Network [OSTI]

    Hobbs, Jerry R.

    flat, nothing spectacular. It is culture and history that West Africa has to offer. Mali, where we. It was the center of the great medieval African empires of Ghana, Mali, and Songhai. Its cities -- Timbuktu, Djenn the architecture of the cities and villages. Mali became a French colony in the 1890s, but as in all of West Africa

  20. International Conference: Humanitarian Logistics: Networks for Africa

    E-Print Network [OSTI]

    Nagurney, Anna

    International Conference: Humanitarian Logistics: Networks for Africa http Agnes Nyaguthie, Oxfam-GB, Pretoria, South Africa The Important Role of Humanitarian Logistics 10 in Humanitarian Logistics: A Southern African Perspective 12:20-12:40 PM Discussion #12;1:00-2:30 PM Lunch 2

  1. Benefits of Tropical Forest Management Under the New Climate...

    Open Energy Info (EERE)

    Benefits of Tropical Forest Management Under the New Climate Change Agreement-A Case Study in Cambodia Jump to: navigation, search Name Benefits of Tropical Forest Management Under...

  2. 7, 69036958, 2007 Tropical Forest fire

    E-Print Network [OSTI]

    Boyer, Edmond

    ACPD 7, 6903­6958, 2007 Tropical Forest fire emissions R. J. Yokelson et al. Title Page Abstract Discussions The Tropical Forest and fire emissions experiment: overview and airborne fire emission factor Forest Service, Fire Sciences Laboratory, Missoula, MT, USA Received: 4 May 2007 ­ Accepted: 10 May 2007

  3. Integrating diverse methods to understand climateland interactions in East Africa

    E-Print Network [OSTI]

    Integrating diverse methods to understand climate­land interactions in East Africa Jennifer M-disciplinary scientists examining climate­land dynamics at multiple scales in East Africa. East Africa is a region Ltd. All rights reserved. Keywords: Climate change; Land use; Africa; Modeling; Biocomplexity; Human

  4. Agreements --Africa 27 28 Atlas of International Freshwater Agreements

    E-Print Network [OSTI]

    Wolf, Aaron

    Agreements -- Africa 27 AFRICA #12;28 Atlas of International Freshwater Agreements Congo of the Niger; and 6) rules for future occupation of the coast of the African continent #12;Agreements -- Africa Great Britain and France #12;Agreements -- Africa 31 Gash Total area: 40,000 km2 Area of Basin

  5. Nitrogen and phosphorus dynamics in tropical soils of Mali, West Africa 

    E-Print Network [OSTI]

    Blanton-Knewtson, Sharon Joy

    2000-01-01

    in a loamy sand soil peaked around 10-15 mg N kg?¹ soil or 15-22 kg N in the upper 10 cm of soil ha?¹. The inorganic N concentration declined four weeks after the onset of the rainy season. Extractable N concentration in the clay soil reached a...

  6. Published on Africa EU (http://www.africa-eu-partnership.org) Home > News > Cameroon axes illegal logging > Printer-friendly

    E-Print Network [OSTI]

    Published on Africa EU (http://www.africa-eu-partnership.org) Home > News > Cameroon axes illegal on the EU side. 9/13/2010 Cameroon axes illegal logging www.africa-eu-partnership.org/print/122 1/2 #12;The goes a long way in supporting the Africa-EU Partnership on Trade, Regional Integration

  7. Sanctions Against South Africa: Strategy for the Anti-Apartheid Movement of the 1980's

    E-Print Network [OSTI]

    Danaher, Kevin

    1981-01-01

    South Africa and Sanctions: Genesis and Prospects,SANCTIONS AGAINST SOUTH AFRICA: STRATEGY FOR THE ANTI-attempts to impose sanctions against the South Africa

  8. An Overview of Accountability Mechanisms in Public - Private Partnerships in South Africa

    E-Print Network [OSTI]

    Fombad, Madeleine

    2013-01-01

    March 1, 2013). South Africa, Republic of. National TreasuryGovernment Printer. South Africa, Republic of. Nationalpdf South Africa, Republic of. 2000a. Municipal Systems Act

  9. Performing Africa: Memory, Tradition, and Resistance in the Leimert Park Drum Circle

    E-Print Network [OSTI]

    Washington, Giavanni ReShae

    2013-01-01

    Welsh-Asante. Trenton: Africa World Press. Hill, Constanceroots/American Cultures: Africa in the Creation of theInquiry. Trenton, N.J. : Africa World Press. Wondrich,

  10. Refrigerator Efficiency in Ghana: Tailoring an appliance market transformation program design for Africa

    E-Print Network [OSTI]

    Ben Hagan, Essel; Van Buskirk, Robert; Ofosu-Ahenkorah, Alfred; McNeil, Michael A.

    2006-01-01

    program design for Africa Essel Ben Hagan, CSIR Institutemany other countries in Africa. Yet by creatively modifyingmarket transformation, Africa energy policy Table of

  11. Creating New Leaders: Youth Involvement in Community Activism in South Africa

    E-Print Network [OSTI]

    Reed, Amber R

    2011-01-01

    and Nicolas Argenti. Young Africa: Realising the Rights ofand Youth. Trenton, NJ: Africa World Press, 2002. Debates ofSocial Imagination in Africa. ” Anthropological Quarterly.

  12. MSU at Work in Africa: Cultural Documentation

    E-Print Network [OSTI]

    are strongly committed to documenting, preserving, and making accessible the continent's cultural heritage' identifying their cultural heritage. Safeguarding and making accessible the artifacts, oral histories cultural tourism, an increasingly important draw for the international tourism trade that is Africa

  13. The Tropical Forest and Fire Emissions Experiment: overview and airborne fire emission factor measurements

    E-Print Network [OSTI]

    2007-01-01

    W. M. : The tropical forest and fire emissions experiment:Physics The Tropical Forest and Fire Emissions Experiment:A. : The tropical forest and fire emissions experiment:

  14. Virtual Global Magnetic ObservatoryVirtual Global Magnetic Observatory Network in Africa:Network in Africa

    E-Print Network [OSTI]

    Michigan, University of

    Virtual Global Magnetic ObservatoryVirtual Global Magnetic Observatory Network in Africa:Network in Africa: Capacity Building for ElectronicCapacity Building for Electronic Geophysical YearGeophysical Year · VGMO.NET is a middleware architecture that provides a new way for the worldwide geomagnetic community

  15. CHARACTERIZATION OF CLOUDS IN TITAN'S TROPICAL ATMOSPHERE

    SciTech Connect (OSTI)

    Griffith, Caitlin A.; Penteado, Paulo; Rodriguez, Sebastien; Baines, Kevin H.; Buratti, Bonnie; Sotin, Christophe; Clark, Roger; Nicholson, Phil; Jaumann, Ralf

    2009-09-10

    Images of Titan's clouds, possible over the past 10 years, indicate primarily discrete convective methane clouds near the south and north poles and an immense stratiform cloud, likely composed of ethane, around the north pole. Here we present spectral images from Cassini's Visual Mapping Infrared Spectrometer that reveal the increasing presence of clouds in Titan's tropical atmosphere. Radiative transfer analyses indicate similarities between summer polar and tropical methane clouds. Like their southern counterparts, tropical clouds consist of particles exceeding 5 {mu}m. They display discrete structures suggestive of convective cumuli. They prevail at a specific latitude band between 8 deg. - 20 deg. S, indicative of a circulation origin and the beginning of a circulation turnover. Yet, unlike the high latitude clouds that often reach 45 km altitude, these discrete tropical clouds, so far, remain capped to altitudes below 26 km. Such low convective clouds are consistent with the highly stable atmospheric conditions measured at the Huygens landing site. Their characteristics suggest that Titan's tropical atmosphere has a dry climate unlike the south polar atmosphere, and despite the numerous washes that carve the tropical landscape.

  16. Ecology in Africa: a view from the past for informing the future

    E-Print Network [OSTI]

    Martins, Dino J.

    2013-01-01

    ISSN 1948?6596  Ecology in Africa: a view from the past for http://www.springer.com/  “Africa’s  natural  habitats  are the  ecology  of  Africa…”.   These opening sentences from 

  17. Post-apartheid transformations and population change around Dwesa-Cwebe nature reserve, South Africa

    E-Print Network [OSTI]

    Fay, Derick A

    2011-01-01

    in south and southern Africa: Dynamics and determinants (Natal. Development Southern Africa 15(4): 635–659. Fay, D.and resettlement in South Africa’s Transkei. Ph.D. thesis.

  18. On the connection between continental-scale land surface processes and the tropical climate in a coupled ocean-atmosphere-land system

    SciTech Connect (OSTI)

    Ma, Hsi-Yen; Mechoso, C. R.; Xue, Yongkang; Xiao, Heng; Neelin, David; Ji, Xuan

    2013-11-15

    The impact of global tropical climate to perturbations in land surface processes (LSP) are evaluated using perturbations given by different LSP representations of continental-scale in a global climate model that includes atmosphere-ocean interactions. One representation is a simple land scheme, which specifies climatological albedos and soil moisture availability. The other representation is the more comprehensive Simplified Simple Biosphere Model, which allows for interactive soil moisture and vegetation biophysical processes. The results demonstrate that LSP processes such as interactive soil moisture and vegetation biophysical processes have strong impacts on the seasonal mean states and seasonal cycles of global precipitation, clouds, and surface air temperature. The impact is especially significant over the tropical Pacific. To explore the mechanisms for such impact, different LSP representations are confined to selected continental-scale regions where strong interactions of climate-vegetation biophysical processes are present. We find that the largest impact is mainly from LSP perturbations over the tropical African continent. The impact is through anomalous convective heating in tropical Africa due to changes in the surface heat fluxes, which in turn affect basinwide teleconnections in the Pacific through equatorial wave dynamics. The modifications in the equatorial Pacific climate are further enhanced by strong air-sea coupling between surface wind stress and upwelling, as well as effect of ocean memory. Our results further suggest that correct representations of land surface processes, land use change and the associated changes in the deep convection over tropical Africa are crucial to reducing the uncertainty when performing future climate projections under different climate change scenarios.

  19. Primitive Primate i, Neanderthal. :'-1an A. Gorilla, Africa / .

    E-Print Network [OSTI]

    .£. Primitive Primate i, Neanderthal. :'-1an A. Gorilla, Africa / .:: Prototypal Anthropoid 8. Cro·l\\1agnon Man ' od! Primitive Anthropoid 9. Australian Blackfellow B. Chimpanzee, Africa Z /- ..J

  20. South Africa-UNEP Green Economy Advisory Services | Open Energy...

    Open Energy Info (EERE)

    Peru, Philippines, Russian Federation, Rwanda, Senegal, Serbia, South Africa and Ukraine." References "UNEP Green Economy Advisory Services" Retrieved from "http:...

  1. Mathematical models and the fight against diseases in Africa

    E-Print Network [OSTI]

    Getz, Wayne M.

    Mathematical models and the fight against diseases in Africa Wayne M.Getz a* ,Eleanor Gouws b theories. While South Africa has many talented scientists trained in quantitative methods, relatively few infrastructural investment is needed to address the health crises in Africa. Prior to the advent of HIV

  2. Diseases of plantation forestry trees in eastern and southern Africa

    E-Print Network [OSTI]

    Diseases of plantation forestry trees in eastern and southern Africa J. Roux a*, G. Meke b , B a Introduction Plantations of non-native trees have been grown in Africa for more than 100 years.1,2 The most especially for construction timber and fuel, while in southern Africa this timber also sustains a thriving

  3. Indirect STV Election: A Voting System for South Africa

    E-Print Network [OSTI]

    Eisner, Jason

    Indirect STV Election: A Voting System for South Africa Jason Eisner University of Cape Town of which would not be appropriate for South Africa. The fourth is a promising new system called Indirect Party in South Africa has consistently engaged in this sort of strategic, anti-democratic redistricting

  4. UNU-IAS Policy Report Biofuels in Africa

    E-Print Network [OSTI]

    UNU-IAS Policy Report Biofuels in Africa Impacts on Ecosystem Services, Biodiversity and Human Well-being #12;#12;UNU-IAS Policy Report Biofuels in Africa Impacts on Ecosystem Services, Biodiversity and Human Research (CSIR) South Africa The views expressed in this publication are those of the authors and do

  5. An early date for cattle from Namaqualand, South Africa

    E-Print Network [OSTI]

    An early date for cattle from Namaqualand, South Africa: implications for the origins of herding in southern Africa Jayson Orton1 , Peter Mitchell2 , Richard Klein3 , Teresa Steele4 & K. Ann Horsburgh5 When did cattle come to South Africa? Radiocarbon dates on a newly found cow horn indicates a time

  6. Ancient west Eurasian ancestry in southern and eastern Africa

    E-Print Network [OSTI]

    Reich, David

    Ancient west Eurasian ancestry in southern and eastern Africa Joseph K. Pickrella,1,2 , Nick, 2014 (received for review July 30, 2013) The history of southern Africa involved interactions between eastern Africa. In particular, we also find evidence for two admixture events in the history of Kenyan

  7. AfricaAdapt | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LIST OFAMERICA'SHeavyAgencyTendoMassachusetts: EnergyRenewablesAfricaAfricaAdapt Jump

  8. Tropical cyclone preparedness and response : opportunities for operations research

    E-Print Network [OSTI]

    Murphy, Maurice D

    2008-01-01

    This thesis explores how operations research methods can be applied in the emergency response community by looking at two recent tropical storm disasters; tropical cyclone Yemyin in Pakistan, June 2007 and super typhoon ...

  9. Diurnal analysis of intensity trends in Atlantic tropical cyclones

    E-Print Network [OSTI]

    Kowch, Roman S

    2013-01-01

    I postulate that a diurnal cycle may exist in observational variables related to tropical cyclone (TC) intensity. Prior studies document a significant diurnal signal in moist convection across tropical regions. Since ...

  10. Channel planform dynamics of an alluvial tropical river 

    E-Print Network [OSTI]

    Alvarez, Aldo

    2005-08-29

    apparently plays a relatively minor role as a formative event in shaping the overall humid tropical landscape. A third objective was to develop an empirical model for predicting bend migration rates in humid tropical rivers, resulting in empirical...

  11. The Precipitation Characteristics of ISCCP Tropical Weather States DONGMIN LEE

    E-Print Network [OSTI]

    Kang, In-Sik

    The Precipitation Characteristics of ISCCP Tropical Weather States DONGMIN LEE GESTAR, University The authors examine the daytime precipitation characteristics of the International Satellite Cloud Climatology precipitation dataset used is the Tropical Rainfall Measuring Mission (TRMM) Multisatellite Precipitation

  12. Ocean dynamics and thermodynamics in the tropical Indo- Pacific region

    E-Print Network [OSTI]

    Drushka, Kyla

    2011-01-01

    Pacific Oceans . . . . . . . . . . . . . . . . . . . . . . . . . . . . .in the eastern tropical Pacific Ocean associated with thethe western equatorial Pacific Ocean. J. Geophys. Res. , 96,

  13. Energy, Industry, and Transport in South-Central Africa’s History

    E-Print Network [OSTI]

    Mavhunga, Clapperton Chakanets

    2014-01-01

    Energy must be seen in interaction with transportation and industry in order for its role in South-Central Africa to be fully understood. All three—energy, industry, and transportation—are themselves always socialized and ...

  14. Climate Science in the Tropics: Waves, Vortices, Boualem Khouider1

    E-Print Network [OSTI]

    Stechmann, Samuel N.

    Climate Science in the Tropics: Waves, Vortices, and PDEs Boualem Khouider1 , Andrew J Majda2 and climate on the entire globe, yet contemporary operational computer models are often deficient.10 Keywords: Climate science, Tropical meteorology, waves, vortices, convection, PDEs, MJO, GCMs, tropical

  15. Tropical cyclone energy dispersion under vertical shears Xuyang Ge,1

    E-Print Network [OSTI]

    Li, Tim

    Tropical cyclone energy dispersion under vertical shears Xuyang Ge,1 Tim Li,1,2 and Xiaqiong Zhou1] Tropical cyclone Rossby wave energy dispersion under easterly and westerly vertical shears is investigated, and X. Zhou (2007), Tropical cyclone energy dispersion under vertical shears, Geophys. Res. Lett., 34, L

  16. LOW LEVEL JETS IN THE TROPICAL AMERICAS Submitted by

    E-Print Network [OSTI]

    Schubert, Wayne H.

    THESIS LOW LEVEL JETS IN THE TROPICAL AMERICAS Submitted by GABRIELA MORA ROJAS Department LEVEL JETS IN THE TROP- ICAL AMERICAS BE ACCEPTED AS FULFILLING IN PART REQUIREMENTS FOR THE DEGREE JETS IN THE TROPICAL AMERICAS The climatologies of five tropical low level jets are studied through

  17. What is a Hurricane? Tropical system with maximum sustained

    E-Print Network [OSTI]

    Meyers, Steven D.

    Hurricane 101 #12;What is a Hurricane? · Tropical system with maximum sustained surface wind of 74 mph or greater. A hurricane is the worst and the strongest of all tropical systems. · Also known as a tropical cyclone. #12;Hurricanes in Florida · 1851-2004 Florida's Hurricane Total: 110 Southwest Florida

  18. Hurricane Isaac, August 28, 2012/NOAA Tropical Cyclones

    E-Print Network [OSTI]

    Hurricane Isaac, August 28, 2012/NOAA Tropical Cyclones A PREPAREDNESS GUIDE U.S. DEPARTMENT, 6 of which became hurricanes East Pacific Ocean: 15 tropical storms, 8 of which became hurricanes Central Pacific Ocean: 4 tropical storms, 2 of which became hurricanes Over a typical 2-year period, the U

  19. The Relation Between Dry Vortex Merger and Tropical Cyclone Genesis over the Atlantic Ocean

    SciTech Connect (OSTI)

    Chen, Shu-Hua; Liu, Yi-Chin

    2014-10-27

    A strong, convective African tropical disturbance has a greater chance to develop into a Tropical 23 Depression (TD) if it merges with a shallow, dry vortex (D-vortex) from the north of the African 24 easterly jet (AEJ) after leaving the western coast. Using 11-year reanalysis data we found that the 25 western tip of a vortex strip at northwestern Africa can serve as dry vortices for the D-vortex 26 merger if it shifts southward. Another source of D-vortices is the westward propagating lows 27 along the southern edge of the Saharan air. The D-vortex merger process occurred for 63.5% of 28 tropical cyclones (TCs) or developing systems over the main development region of the Atlantic 29 Ocean, while it occurred for 54% of non-developing systems. TC genesis could be largely 30 controlled by the large-scale environment, but the differences in characteristics of vortices 31 associated with the D-vortex merger between developing and non-developing systems could 32 potentially help determine their destinies; in general, developing systems were dominated by a 33 more intense and moist south vortex, while non-developing systems were dominated by a north 34 vortex which was more intense, drier, and larger in size. Analysis also shows that 74% of intense 35 developing systems were involved with the D-vortex merger process. More attention needs to be 36 paid to the D-vortex merger and the characteristics of those vortices as they can play significant 37 roles or have a strong indication in Atlantic TC genesis.

  20. IOL: Africa's big plans for biofuel Africa's big plans for biofuel

    E-Print Network [OSTI]

    IOL: Africa's big plans for biofuel Africa's big plans for biofuel By Clare Byrne Visitors for the production of fuel crops. http://www.iol.co.za/general/news/newsprint.php?art_id=nw20071106135542969C112694&sf= (1 of 3) [11/11/2008 11:48:04 AM] http://www.iol.co.za/index.php?set_id=1&click_id=31&art

  1. Three Essays on Economic Development in Africa 

    E-Print Network [OSTI]

    Musumba, Mark

    2012-10-19

    to economic development in Africa. Climate change is examined in terms of its effects on the Egyptian agricultural sector; transmission of world price to small scale growers is examined in Uganda; and the benefits of insecticide-treated bed nets use...

  2. Reinventing Africa into a Global Supplier of Food Goods: An Analysis of Agri-business Development, Sustainability, Supply Chain Integration and Export in Developing Economies

    E-Print Network [OSTI]

    Chisholm, Lisa M.

    2011-01-01

    March 30). Transforming Africa’s Role in the Global Food11, 2011, from AGRA Growing Africa's Agriculture: http://e. (1988). Satisfying Africa's Food Needs: Food Production

  3. Alien plant invasions in tropical and sub-tropical savannas: patterns, processes and prospects

    E-Print Network [OSTI]

    Foxcroft, Llewellyn C.; Richardson, David M.; Rejmánek, Marcel; Pyšek, Petr

    2010-01-01

    Tanzania Species Family Alien plant invasions in savannasLo pez-Olmedo et al. 2007). Alien plant invasions in Africanspecies of naturalised alien plants for tropical savannas in

  4. Climate Science: Tropical Expansion by Ocean Swing

    SciTech Connect (OSTI)

    Lu, Jian

    2014-04-01

    The tropical belt has become wider over the past decades, but climate models fall short of capturing the full rate of the expansion. The latest analysis of the climate simulations suggests that a long-term swing of the Pacific Decadal Oscillation is the main missing cause.

  5. Chapter 4587 TROPICAL CYCLOGENESIS IN WIND SHEAR

    E-Print Network [OSTI]

    Nolan, David S.

    , it is shown that small values of wind shear in the range of 1.25 to 5 ms -1 are the most favorable, and very and middle troposphere, and a relatively small value of vertical wind shear, which is the change with heightChapter 4587 TROPICAL CYCLOGENESIS IN WIND SHEAR: CLIMATOLOGICAL RELATIONSHIPS AND PHYSICAL

  6. Moving towards pro-poor systems of land administration: Challenges for land and asset distribution in Africa

    E-Print Network [OSTI]

    Deininger, Klaus

    2009-01-01

    and Management in Africa." IIED Issues Paper 120. London:Custom and commonage in Africa: Rethinking the orthodoxies."Land Registration in Africa: The Impact on Agricultural

  7. Capacity Building in Meat Exports From Southern Africa 

    E-Print Network [OSTI]

    Chiriboga, Luis M.; Kilmer, Chris; Fan, Rocky

    2008-01-01

    a permanent agreement. This process has been difficult as South Africa and Namibia disagree with the EU on issues regarding the liberalization of services and investments. As it stands, the new treaty will grant Namibian beef exporters... (1998) investigated land degradation and its negative impact on Namibia’s beef industry. Additionally, Dyck and Nelson (2003) provide an overview of the structure of global meat markets and confirm Africa’s comparative advantage in grazing land...

  8. The Relationship Between Unemployment and Earnings Inequality in South Africa

    E-Print Network [OSTI]

    Tregenna, Fiona

    1 THE RELATIONSHIP BETWEEN UNEMPLOMENT AND EARNINGS INEQUALITY IN SOUTH AFRICA FIONA TREGENNA Faculty of Economics, University of Cambridge ABSTRACT Unemployment and earnings inequality have moved closely together in South Africa... in recent years, suggesting that there may not be a trade-off between them as the literature generally suggests. This article explores the relationship between unemployment and earnings inequality in South Africa, specifically investigating the extent...

  9. Experiment to Characterize Tropical Cloud Systems

    SciTech Connect (OSTI)

    May, Peter T.; Mather, Jim H.; Jakob, Christian

    2005-08-02

    A major experiment to study tropical convective cloud systems and their impacts will take place around Darwin, Northern Australia in early 2006. The Tropical Warm Pool International Cloud Experiment (TWP-ICE) is a collaboration including the DOE ARM (Atmospheric Radiation Measurement) and ARM-UAV programs, NASA centers, the Australian Bureau of Meteorology, CSIRO, and universities in the USA, Australia, Japan, the UK, and Canada. TWP-ICE will be preceded in November/December 2004 by a collaborating European aircraft campaign involving the EU SCOUT-O3 and UK NERC ACTIVE projects. Detailed atmospheric measurements will be made in the Darwin area through the whole Austral summer, giving unprecedented coverage through the pre-monsoon and monsoon periods.

  10. Energy Efficiency Country Study: Republic Of South Africa

    E-Print Network [OSTI]

    Can, Stephane de la Rue du

    2014-01-01

    Televisions OLEDs Water Heaters Solar water heaters FansTARGET APPLIANCE Solar Water Heater (low and high pressure)content/solar-water-heaters-save- electricity-south-africa

  11. Africa Adaptation Programme: Capacity Building Experiences-Improving...

    Open Energy Info (EERE)

    Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Africa Adaptation Programme: Capacity Building Experiences-Improving Access, Understanding and Application of Climate...

  12. Characterizing wind power resource reliability in southern Africa...

    Office of Scientific and Technical Information (OSTI)

    DOE PAGES Search Results Published Article: Characterizing wind power resource reliability in southern Africa Title: Characterizing wind power resource reliability in southern...

  13. Africa - Technical Potential of Solar Energy to Address Energy...

    Open Energy Info (EERE)

    Africa - Technical Potential of Solar Energy to Address Energy Poverty and Avoid GHG Emissions Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Technical Potential of...

  14. Power Africa's Beyond the Grid Increasing Access through Small...

    Broader source: Energy.gov (indexed) [DOE]

    the U.S. Government is formally launching an innovative framework under President Obama's Power Africa initiative to increase energy access for underserved populations across...

  15. "OUT OF AFRICA: GENETICS AND HUMAN MIGRATIONS", Prof. Gyan Bhanot...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    7, 2012, 9:30am Science On Saturday MBG Auditorium "OUT OF AFRICA: GENETICS AND HUMAN MIGRATIONS", Prof. Gyan Bhanot, Department of Molecular Biology, Biochemistry and Physics,...

  16. South Africa-Developing Climate Policy Capacity within the South...

    Open Energy Info (EERE)

    South Africa-Developing Climate Policy Capacity within the South African Department of Environmental Affairs (DEA) (Redirected from GIZ-Developing Climate Policy Capacity within...

  17. Secretary Moniz's Remarks at the Powering Africa Summit in Washington...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    support and loan guarantees, and so these are good projects that we support. Power Africa has also mobilized more than 29 billion in other commitments to support the...

  18. The Development of Conceptions of the Right to Literacy in Traditional Rural Africa

    E-Print Network [OSTI]

    Day, Kathryn Louise

    2010-01-01

    in post-apartheid South Africa: A panel study of KwaZulu-03/77). Cape Town, South Africa: University of Capetown,of the Republic of South Africa (1996). Retrieved April 13,

  19. The Political Economy of Ways and Means: Procurement Contracts, Entrepreneurship, and Development in Africa

    E-Print Network [OSTI]

    Ngo Nyeck, Sybille

    2013-01-01

    E. (1967). The Map of Africa by Treaty. 3 ed. London: FrankCass. __________. (1894). Map of Africa by Treaty. Vol. II,British Policy Towards West Africa Select Documents 1786-

  20. Privatizing Public Health: Social Marketing for HIV Prevention in Tanzania, East Africa

    E-Print Network [OSTI]

    Mahaffey, Erin Elizabeth

    2012-01-01

    J-F. 1993. The State in Africa: The Politics of the Belly.Time, and Aging in West Africa. Chicago: Chicago University2006. Global Shadows: Africa in the Neoliberal World Order.

  1. Breaking news: Biological control agent for Thaumastocoris peregrinus to be released in South Africa

    E-Print Network [OSTI]

    Africa The Tree Protection Co-operative Programme (TPCP) based at FABI has milestone in terms of ensuring sustainable plantation forestry in South Africa was safe to release in South Africa as a biological control agent

  2. The potential impact of male circumcision on HIV in sub-Saharan Africa

    E-Print Network [OSTI]

    2006-01-01

    controlled trials in Africa of HIV and AIDS: DescriptiveHIV infection in sub-Saharan Africa: A systematic review andepidemics in sub-Saharan Africa: Introduction. AIDS 15: S1–

  3. Competing Methods for Teaching and Researching Africa: Interdisciplinarity and the Field of African Studies

    E-Print Network [OSTI]

    De Ycaza, Carla

    2015-01-01

    The Re-Invention of Africa: Edward Said, V. Y. Mudimbe, andThe Postcolonial State in Africa, 4-5. 46 Ibid. , 4. 47Legitimacy in Middle Africa: Father, Family, Food (

  4. TESTING VIRGINITY: HIV/AIDS, MODERNITY & ETHNICITY IN POST-APARTHEID SOUTH AFRICA

    E-Print Network [OSTI]

    Leak, Tia-Nicole

    2012-01-01

    Among the South?Eastern Bantu”. Africa 11 (1938): 25?41; MaxCustom and Conflict in Africa. Oxford 1963; Eileen J. Krige.Bond, G. et. al. AIDS in Africa and the Caribbean. Boulder:

  5. Population structure of the fungal pathogen Holocryphia eucalypti in Australia and South Africa

    E-Print Network [OSTI]

    Population structure of the fungal pathogen Holocryphia eucalypti in Australia and South Africa, Forestry and Agricultural Biotechnology Institute, University of Pretoria, Pretoria 0002, South Africa. B Institute, University of Pretoria, Pretoria 0002, South Africa. C School of Biological Sciences

  6. The 500 Windows Campaign: A Case Study of a Youth Movement for Educational Resources in South Africa

    E-Print Network [OSTI]

    Angara, Harini

    2011-01-01

    of the Republic of South Africa, 1996. chap. 2, sec. 29.assessment. Pretoria, South Africa: Department of Education.South%20Africa/South_Africa_E FA_2000.pdf Dugger, C. (2009,

  7. Realizing the Potential ofRealizing the Potential of iLabsiLabs in subin sub--Sahara AfricaSahara Africa

    E-Print Network [OSTI]

    del Alamo, Jesús A.

    Realizing the Potential ofRealizing the Potential of iLabsiLabs in subin sub--Sahara AfricaSahara Africa KickKick--Off/Steering Committee MeetingOff/Steering Committee MeetingObafemi Awolowo University -- Overview ofOverview of iLabiLab andand iLabiLab--Africa projects by Prof. del AlamoAfrica projects by Prof

  8. Clarence Strait Tidal Energy Project, Tenax Energy Tropical Tidal...

    Open Energy Info (EERE)

    Page Edit History Clarence Strait Tidal Energy Project, Tenax Energy Tropical Tidal Test Centre, Jump to: navigation, search 1 Retrieved from "http:en.openei.orgw...

  9. Nitrogen deposition in tropical forests from savanna and deforestation fires

    E-Print Network [OSTI]

    Chen, Y; Randerson, JT; Van Der Werf, GR; Morton, DC; Mu, M; Kasibhatla, PS

    2010-01-01

    15, Atkinson R (2000) Atmospheric chemistry of VOCs and NOx.tropics – impact on atmospheric chemistry and biogeochemicalimpact of fires on atmospheric chemistry. N r can be emitted

  10. "A New Paradigm for Secondary Eyewall Formation in Tropical Cyclones...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Road Princeton, NJ 08540-6649 "A New Paradigm for Secondary Eyewall Formation in Tropical Cyclones", Chun-Chieh Wu (National Taiwan University) Contact Information Website: Website...

  11. Ocean Barrier Layers’ Effect on Tropical Cyclone Intensification

    SciTech Connect (OSTI)

    Balaguru, Karthik; Chang, P.; Saravanan, R.; Leung, Lai-Yung R.; Xu, Zhao; Li, M.; Hsieh, J.

    2012-09-04

    Improving a tropical cyclone's forecast and mitigating its destructive potential requires knowledge of various environmental factors that influence the cyclone's path and intensity. Herein, using a combination of observations and model simulations, we systematically demonstrate that tropical cyclone intensification is significantly affected by salinity-induced barrier layers, which are 'quasi-permanent' features in the upper tropical oceans. When tropical cyclones pass over regions with barrier layers, the increased stratification and stability within the layer reduce storm-induced vertical mixing and sea surface temperature cooling. This causes an increase in enthalpy flux from the ocean to the atmosphere and, consequently, an intensification of tropical cyclones. On average, the tropical cyclone intensification rate is nearly 50% higher over regions with barrier layers, compared to regions without. Our finding, which underscores the importance of observing not only the upper-ocean thermal structure but also the salinity structure in deep tropical barrier layer regions, may be a key to more skillful predictions of tropical cyclone intensities through improved ocean state estimates and simulations of barrier layer processes. As the hydrological cycle responds to global warming, any associated changes in the barrier layer distribution must be considered in projecting future tropical cyclone activity.

  12. Tropical cyclone size in observations and in radiative-convective equilibrium

    E-Print Network [OSTI]

    Chavas, Daniel Robert

    2013-01-01

    Tropical cyclone size remains an unsolved problem in tropical meteorology, yet size plays a significant role in the damage caused by tropical cyclones due to wind, storm surge, and inland freshwater flooding. This work ...

  13. Performance-based assessment of daylight on tropical buildings- a case Study

    E-Print Network [OSTI]

    Szu Cheng, CHIEN

    2013-01-01

    Sustainability in the Tropics For the visual performance ofSustainability in the Tropics Table 3 Metrics conducted to assess dayliglzting performanceSustainability in the Tropics APPROACH Description of the case study model Daylight performance

  14. Carbon sequestration potential of tropical pasture compared with afforestation in Panama

    E-Print Network [OSTI]

    Potvin, Catherine

    Carbon sequestration potential of tropical pasture compared with afforestation in Panama S E B) to estimate the carbon sequestration potential of tropical pasture compared with afforestation; and (3 show the potential for considerable carbon sequestration of tropical afforestation and highlight

  15. Diurnal Precipitation Regimes in the Global Tropics* KAZUYOSHI KIKUCHI AND BIN WANG

    E-Print Network [OSTI]

    Wang, Bin

    Diurnal Precipitation Regimes in the Global Tropics* KAZUYOSHI KIKUCHI AND BIN WANG Department tropical precipitation are documented by using two complementary Tropical Rainfall Measuring Mission (TRMM, and phase propagation characteristics of the diurnal precipitation. The oceanic regime is characterized

  16. Africa - CCS capacity building | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LIST OFAMERICA'SHeavyAgencyTendoMassachusetts: EnergyRenewablesAfrica - CCS capacity

  17. Africa's Transport Infrastructure Mainstreaming Maintenance and

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LIST OFAMERICA'SHeavyAgencyTendoMassachusetts: EnergyRenewablesAfrica

  18. Azania XLII 2007 East Africa, the Comoros Islands and

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Azania XLII 2007 East Africa, the Comoros Islands and Madagascar before the sixteenth century interior and on outlying islands (Comoros, Madagascar) or were composed of lower classes in urban expansion and private enterprise. #12;16 East Africa, the Comoros Islands and Madagascar before

  19. Economic and Social Significance of Forests For Africa's Sustainable Development

    E-Print Network [OSTI]

    Economic and Social Significance of Forests For Africa's Sustainable Development Volume 25, Issue 2, Issue 2 Economic and social significance of forests for Africa's sustainable development Editor: Foday Resources specialist Rome, Italy Jeffrey Sayer Ecologist/expert in political and economic context of natural

  20. Energy and Development: Activities in Sub-Saharan Africa

    E-Print Network [OSTI]

    COOPENER programme #12;Development and Energy in Africa (DEA) · Most energy projects monitor and evaluate reductionHealth Solar Water Heater Women Renewable EnergyProject RemarksSubstantiation Case Study findingsEnergy and Development: Activities in Sub-Saharan Africa Gordon Mackenzie Energy Programme

  1. Characterization of Trapped Lignin-Degrading Microbes in Tropical Forest Soil

    E-Print Network [OSTI]

    DeAngelis, Kristen

    2012-01-01

    of Trapped Lignin-Degrading Microbes in Tropical Forest Soilof Trapped Lignin-Degrading Microbes in Journals Tropicalof Trapped Lignin-Degrading Microbes in Tropical Forest Soil

  2. The impact of vertical shear on the sensitivity of tropical cyclogenes...

    Office of Scientific and Technical Information (OSTI)

    The impact of vertical shear on the sensitivity of tropical cyclogenesis to environmental rotation and thermodynamic state: TROPICAL CYCLOGENESIS AND SHEAR Citation Details...

  3. Tropical Forest Trust | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop IncIowa (Utility Company) Jump to: navigation,PowerNetworksEnergia LtdaTropical

  4. Chapter Number1 Biomass Prediction in Tropical Forests:2

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Chapter Number1 Biomass Prediction in Tropical Forests:2 The Canopy Grain Approach3 Christophe France9 1. Introduction10 The challenging task of biomass prediction in dense and heterogeneous tropical different forest structures may indeed present similar above ground biomass (AGB) values.13 This is probably

  5. Neural Network forecasts of the tropical Pacific sea surface temperatures

    E-Print Network [OSTI]

    Hsieh, William

    Neural Network forecasts of the tropical Pacific sea surface temperatures Aiming Wu, William W Tang Jet Propulsion Laboratory, Pasadena, CA, USA Neural Networks (in press) December 11, 2005 title: Forecast of sea surface temperature 1 #12;Neural Network forecasts of the tropical Pacific sea

  6. CURRENT SKIPJACK OCEANOGRAPHY CRUISES IN EASTERN TROPICAL PACIFIC OCEAN

    E-Print Network [OSTI]

    CURRENT SKIPJACK OCEANOGRAPHY CRUISES IN EASTERN TROPICAL PACIFIC OCEAN F. Williams A series of skipjack oceanography cruises is planned for two offshore areas in the eastern tropical Pacific Ocean October 23 and arrived in Honolulu November 29; and the David Starr Jordan (Fishery-Oceanography C en t e

  7. Biological Oceanography of the Eastern Tropical Pacific: Summary

    E-Print Network [OSTI]

    540 Biological Oceanography of the Eastern Tropical Pacific: Summary of Existing Information Tuna Oceanography Research Program of the Institute of Marine Resources of the University of California Oceanography of the Eastern Tropical Pacific: Summary of Existing Information By MAURICE BLACKBURN tribution

  8. Facts about ENSO: . Originates in the tropical Pacific

    E-Print Network [OSTI]

    : . Computer models show skill in forecasting tropical Pacific Ocean temperatures one to two years in advance for Pacific Ocean observations that are the foundation of skillful ENSO forecasts: Moored buoys Drifting buoysaaaaaa Facts about ENSO: . Originates in the tropical Pacific . Has a periodicity of 2­7 years

  9. Tropical Moored Buoy Implementation Panel Scottish Association for Marine Science

    E-Print Network [OSTI]

    Tropical Moored Buoy Implementation Panel Scottish Association for Marine Science Oban, Scotland 26 September 2010 8:30 am Welcome and logistics 8:40 The Global Tropical Moored Buoy Array M. J. McPhaden, NOAA/PMEL, Seattle, USA 9:00 Current status of TRITON and m-TRITON buoy array and its data system K. Ando and I. Ueki

  10. Hybrid coupled modeling of the tropical Pacific using neural networks

    E-Print Network [OSTI]

    Hsieh, William

    Hybrid coupled modeling of the tropical Pacific using neural networks Shuyong Li, William W. Hsieh To investigate the potential for improving hybrid coupled models (HCM) of the tropical Pacific by the use: dynamical coupled models, statistical models and hybrid coupled models [Barnston et al., 1994]. A hybrid

  11. Southern Hemisphere Additional Ozonesondes (SHADOZ) 19982000 tropical ozone climatology

    E-Print Network [OSTI]

    Thompson, Anne

    Southern Hemisphere Additional Ozonesondes (SHADOZ) 1998­2000 tropical ozone climatology 2; published 31 January 2003. [1] The first view of stratospheric and tropospheric ozone variability in the Southern Hemisphere tropics is provided by a 3-year record of ozone soundings from the Southern Hemisphere

  12. Southern Hemisphere Additional Ozonesondes (SHADOZ) 19982004 tropical ozone climatology

    E-Print Network [OSTI]

    Thompson, Anne

    Southern Hemisphere Additional Ozonesondes (SHADOZ) 1998­2004 tropical ozone climatology: 3 more than 3000 ozone profiles from 14 tropical and subtropical sites using balloon- borne technique might cause small station-to-station biases in the total ozone measurement. We present further

  13. Climate change and tropical biodiversity: a new focus

    E-Print Network [OSTI]

    Wisenden, Brian D.

    Climate change and tropical biodiversity: a new focus Jedediah Brodie1 , Eric Post2 and William F, Australia Considerable efforts are focused on the consequences of climate change for tropical rainforests climatic changes and human land use) remain understudied. Key concerns are that aridification could

  14. The Tropical Warm Pool International Cloud Experiment

    SciTech Connect (OSTI)

    May, Peter T.; Mather, James H.; Vaughan, Geraint; Jakob, Christian; McFarquhar, Greg; Bower, Keith; Mace, Gerald G.

    2008-05-01

    One of the most complete data sets describing tropical convection ever collected will result from the upcoming Tropical Warm Pool International Cloud Experiment (TWP-ICE) in the area around Darwin, Northern Australia in January and February 2006. The aims of the experiment, which will be operated in conjunction with the DOE Atmospheric Radiation Measurement (ARM) site in Darwin, will be to examine convective cloud systems from their initial stages through to the decay of the cirrus generated and to measure their impact on the environment. The experiment will include an unprecedented network of ground-based observations (soundings, active and passive remote sensors) combined with low, mid and high altitude aircraft for in-situ and remote sensing measurements. A crucial outcome of the experiment will be a data set suitable to provide the forcing and evaluation data required by cloud resolving and single column models as well as global climate models (GCMs) with the aim to contribute to parameterization development. This data set will provide the necessary link between the observed cloud properties and the models that are attempting to simulate them. The experiment is a large multi-agency experiment including substantial contributions from the United States DOE ARM program, ARM-UAV program, NASA, the Australian Bureau of Meteorology, CSIRO, EU programs and many universities.

  15. Global Threat Reduction Initiative Africa and Middle East Project Plan 2012

    SciTech Connect (OSTI)

    Jamison, Jeremy D.

    2012-02-01

    GTRI Africa and Middle East Project Plan submitted for school project to American Graduate University.

  16. Using HCI Guidelines to Foster Technological Advancement in Sub-Saharan Africa

    E-Print Network [OSTI]

    Stringfellow, Catherine V.

    Using HCI Guidelines to Foster Technological Advancement in Sub-Saharan Africa Jamie Thomas Guidelines to Foster Technological Advancement in Sub-Saharan Africa Jamie Thomas, Midwestern State-Saharan Africa (excluding the region of Southern Africa). There are countless obstacles in the way

  17. Lacunarity as a texture measure for a tropical forest landscape

    SciTech Connect (OSTI)

    Su, Haiping; Krummel, J.

    1996-01-01

    Fragmentation and loss of tropical forest cover alters terrestrial plant and animal population dynamics, reduces biodiversity and carbon storage capacity, and, as a global phenomenon could affect regional and global climate patterns. Lacunarity as a texture measure can offer a simple solution to characterize the texture of tropical forest landscape and determine spatial patterns associated with ecological processes. Lacunarity quantifies the deviation from translational invariance by describing the distribution of gaps within a binary image at multiple scales. As lacunarity increases, the spatial arrangement of tropical forest gaps will also increase. In this study, we used the Spatial Modeler in Imagine as a graphic programming tool to calculate lacunarity indices for a tropical forest landscape in Southern Mexico and Northern Guatemala. Lacunarity indices were derived from classified Landsat MSS images acquired in 1974 and 1984. Random-generated binary images were also used to derive lacunarity indices and compared with the lacunarity of forest patterns derived from the classified MSS images. Tropical forest area declined about 17%, with most of the forest areas converted into pasture/grassland for grazing. During this period, lacunarity increased about 25%. Results of this study suggest that tropical forest fragmentation could be quantified with lacunarity measures. The study also demonstrated that the Spatial Modeler can be useful as a programming tool to quantify spatial patterns of tropical forest landscape by using remotely sensed data.

  18. eGY-Africa: Addressing the Digital Divide for Science in Africa

    SciTech Connect (OSTI)

    Barton, C.E.; Amory-Mazaudier, C.; Barry, B.; Chukwuma; Cottrell, R.L.; Kalim, U.; Mebrahtu, A.; Petitdidier, M.; Rabiu, B.; Reeves, C.; ,

    2010-06-16

    Adoption of information and communication technologies and access to the Internet is expanding in Africa, but because of the rapid growth elsewhere, a Digital Divide between Africa and the rest of the world exists, and the gap is growing. In many sub-Saharan African countries, education and research sector suffers some of the worst deficiencies in access to the Internet, despite progress in development of NRENs - National Research and Education (cyber) Networks. By contrast, it is widely acknowledged in policy statements from the African Union, the UN, and others that strength in this very sector provides the key to meeting and sustaining Millennium Development Goals. Developed countries with effective cyber-capabilities proclaim the benefits to rich and poor alike arising from the Information Revolution. This is but a dream for many scientists in African institutions. As the world of science becomes increasingly Internet-dependent, so they become increasingly isolated. eGY-Africa is a bottom-up initiative by African scientists and their collaborators to try to reduce this Digital Divide by a campaign of advocacy for better institutional facilities. Four approaches are being taken. The present status of Internet services, problems, and plans are being mapped via a combination of direct measurement of Internet performance (the PingER Project) and a questionnaire-based survey. Information is being gathered on policy statements and initiatives aimed at reducing the Digital Divide, which can be used for arguing the case for better Internet facilities. Groups of concerned scientists are being formed at the national, regional levels in Africa, building on existing networks as much as possible. Opinion in the international science community is being mobilized. Finally, and perhaps most important of all, eGY-Africa is seeking to engage with the many other programs, initiatives, and bodies that share the goal of reducing the Digital Divide - either as a direct policy objective, or indirectly as a means to an end, such as the development of an indigenous capability in science and technology for national development. The expectation is that informed opinion from the scientific community at the institutional, national, and international levels can be used to influence the decision makers and donors who are in a position to deliver better Internet capabilities.

  19. eGY-Africa: Addressing the Digital Divide for Science in Africa

    SciTech Connect (OSTI)

    Barton, C. E.

    2010-05-25

    Adoption of information and communication technologies and access to the Internet is expanding in Africa, but because of the rapid growth elsewhere, a Digital Divide between Africa and the rest of the world exists, and the gap is growing. In many sub-Saharan African countries, education and research sector suffer some of the worst deficiencies in access to the Internet, despite progress in development of NRENs National Research and Education (cyber) Networks. By contrast, it is widely acknowledged in policy statements from the African Union, the UN, and others that strength in this very sector provides the key to meeting and sustaining Millennium Development Goals. Developed countries with effective cyber-capabilities proclaim the benefits to rich and poor alike arising from the Information Revolution. This is but a dream for many scientists in African institutions. As the world of science becomes increasingly Internet-dependent, so they become increasingly isolated. eGY-Africa is a bottom-up initiative by African scientists and their collaborators to try to reduce this Digital Divide by a campaign of advocacy for better institutional facilities. Four approaches are being taken. The present status of Internet services, problems, and plans are being mapped via a combination of direct measurement of Internet performance (the PingER Project) and a questionnaire-based survey. Information is being gathered on policy statements and initiatives aimed at reducing the Digital Divide, which can be used for arguing the case for better Internet facilities. Groups of concerned scientists are being formed at the national, regional levels in Africa, building on existing networks as much as possible. Opinion in the international science community is being mobilized. Finally, and perhaps most important of all, eGY-Africa is seeking to engage with the many other programs, initiatives, and bodies that share the goal of reducing the Digital Divide either as a direct policy objective, or indirectly as a means to an end, such as the development of an indigenous capability in science and technology for national development. The expectation is that informed opinion from the scientific community at the institutional, national, and international levels can be used to influence the decision makers and donors who are in a position to deliver better Internet capabilities.

  20. Tropical Cloud Properties and Radiative Heating Profiles

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    Mather, James

    2008-01-15

    We have generated a suite of products that includes merged soundings, cloud microphysics, and radiative fluxes and heating profiles. The cloud microphysics is strongly based on the ARM Microbase value added product (Miller et al., 2003). We have made a few changes to the microbase parameterizations to address issues we observed in our initial analysis of the tropical data. The merged sounding product is not directly related to the product developed by ARM but is similar in that it uses the microwave radiometer to scale the radiosonde column water vapor. The radiative fluxes also differ from the ARM BBHRP (Broadband Heating Rate Profile) product in terms of the radiative transfer model and the sampling interval.

  1. Tropical Cloud Properties and Radiative Heating Profiles

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    Mather, James

    We have generated a suite of products that includes merged soundings, cloud microphysics, and radiative fluxes and heating profiles. The cloud microphysics is strongly based on the ARM Microbase value added product (Miller et al., 2003). We have made a few changes to the microbase parameterizations to address issues we observed in our initial analysis of the tropical data. The merged sounding product is not directly related to the product developed by ARM but is similar in that it uses the microwave radiometer to scale the radiosonde column water vapor. The radiative fluxes also differ from the ARM BBHRP (Broadband Heating Rate Profile) product in terms of the radiative transfer model and the sampling interval.

  2. A tropical influence on global climate

    SciTech Connect (OSTI)

    Schneider, E.K.; Kirtman, B.P.; Lindzen, R.S.

    1997-05-15

    A potential influence of tropical sea surface temperature on the global climate response to a doubling of the CO{sub 2} concentration is tested using an atmospheric general circulation model coupled to a slab mixed layer ocean. The warming is significantly reduced when sea surface temperatures in the eastern equatorial Pacific cold tongue region between latitudes 2.25{degrees}N and 2.25{degrees}S are held at the control simulation values. Warming of the global mean temperature outside of the cold tongue region is reduced from 2.4{degrees}C in the unconstrained case to 1.9{degrees}C when the sea surface temperature constraint is applied. The decrease in the warming results from a positive net heat flux into the ocean cold tongue region and implicit heat storage in the subsurface ocean, induced by horizontal atmospheric heat fluxes. The reduced surface temperature warming outside of the cold tongue region is due to reduction in the downward longwave radiative flux at the surface, caused in turn by reduced atmospheric temperature and moisture. The global mean surface temperature responds to the heat storage in the ocean as if the global mean radiative forcing due to the doubled CO{sub 2} (approximately 4 W m{sup {minus}2}) was reduced by the value of the global mean heat flux into the ocean. This mechanism also provides a possible explanation for the observed high correlation on interannual timescales between the global mean tropospheric temperature and sea surface temperature in the eastern tropical Pacific. The results emphasize the importance of correctly modeling the dynamical processes in the ocean and atmosphere that help determine the sea surface temperature in the equatorial eastern Pacific, in addition to the thermodynamical processes, in projecting global warming. 23 refs., 8 figs.

  3. Shifting suitability for malaria vectors across Africa with warming climates

    E-Print Network [OSTI]

    Peterson, A. Townsend

    2009-05-10

    Background Climates are changing rapidly, producing warm climate conditions globally not previously observed in modern history. Malaria is of great concern as a cause of human mortality and morbidity, particularly across Africa, thanks in large part...

  4. CITIZENSHIP EDUCATION IN SOUTH AFRICA: A REPORT TO SCHOOLS

    E-Print Network [OSTI]

    . Challenges to Teaching Citizenship Education. The social and environmental context of the schoolsCITIZENSHIP EDUCATION IN SOUTH AFRICA: A REPORT TO SCHOOLS Daniel Hammett University General Remarks 4 Summary of Findings Is citizenship education important? Competing Views 4 Defining

  5. Ancient west Eurasian ancestry in southern and eastern Africa

    E-Print Network [OSTI]

    Pickrell, Joseph K.

    The history of southern Africa involved interactions between indigenous hunter–gatherers and a range of populations that moved into the region. Here we use genome-wide genetic data to show that there are at least two ...

  6. Characterization of maize testing locations in eastern and southern Africa 

    E-Print Network [OSTI]

    Maideni, Francis W.

    2006-08-16

    The region of eastern and southern Africa is very diverse in environments and agronomic practices. The region has one of the highest per capita consumption of maize (Zea mays. L), which is predominantly produced by smallholder farmers. Some...

  7. Ecological niche and geographic distribution of human monkeypox in Africa

    E-Print Network [OSTI]

    Levine, Rebecca S.; Peterson, A. Townsend; Yorita, Krista L.; Carroll, Darin S.; Damon, Inger K.; Reynolds, Mary G.

    2007-01-31

    Monkeypox virus, a zoonotic member of the genus Orthopoxviridae, can cause a severe, smallpox-like illness in humans. Monkeypox virus is thought to be endemic to forested areas of western and Central Africa. Considerably more is known about human...

  8. MSU at Work in Africa: Land Use, Strategic Growth

    E-Print Network [OSTI]

    , construction, and finance of which are related to land tenure, use, and planning. Africans need rural economic areas of Africa, excessive extraction of resources, including oil, coal, and natural gas, has resulted

  9. Product Quality Assurance for Off-Grid Lighting in Africa

    E-Print Network [OSTI]

    Mills, Evan; World Bank

    2008-01-01

    of technological options for off-grid light provision thatQuality Assurance for Off-Grid Lighting in Africa Conferencemarkets for high efficiency off-grid lighting technologies

  10. Entrepreneurship in South Africa : improving access to finance

    E-Print Network [OSTI]

    Alexander, Amanda, M.B.A. Massachusetts Institute of Technology

    2011-01-01

    For a rapidly developing country, South Africa has relatively very low levels of entrepreneurship. This thesis will investigate the reasons for the anemic number of new ventures and, most specifically, tries to address one ...

  11. Consumer Acceptance of GMO Cowpeas in Sub-Sahara Africa

    E-Print Network [OSTI]

    Ginzel, Matthew

    Consumer Acceptance of GMO Cowpeas in Sub-Sahara Africa Saket Kushwaha, A.S. Musa, James Lowenberg Professor at Purdue University, West Lafayette, IN. #12;Consumer Acceptance of GMO Cowpeas in Sub

  12. Connecting with South Africa: Cultural Communication and Understanding 

    E-Print Network [OSTI]

    Berg, Astrid

    2012-02-06

    Child psychiatrist and psychoanalyst Astrid Berg states in her introduction that “South Africa is a microcosm.” It is a modern nation, yet many of its inhabitants follow ancient traditions. It is a nation with a colonial ...

  13. The Fashion of Democracy: September 11 and Africa

    E-Print Network [OSTI]

    Ajayi-Soyinka, Omofolabo

    2004-12-01

    KU ScholarWorks | http://kuscholarworks.ku.edu The Fashion of Democracy: September 11 and Africa by Omofolabo Ajayl-Soyinka KU ScholarWorks is a service provided by the KU Libraries’ Office of Scholarly Communication & Copyright.... This is the published version of the article, made available with the permission of the publisher. The original published version can be found at the link below. Ayayi-Soyinka. (2004). The Fashion of Democracy: September 11 and Africa. Signs 29...

  14. Distributional Implications of Halving Poverty in South Africa

    E-Print Network [OSTI]

    Tregenna, Fiona

    1 DISTRIBUTIONAL IMPLICATIONS OF HALVING POVERTY IN SOUTH AFRICA FIONA TREGENNA† Faculty of Economics, University of Cambridge. ABSTRACT The South African government has set as a policy objective the halving of poverty by 2014... poverty under various growth scenarios. Keywords: income distribution, poverty, inequality, South Africa. JEL codes: D30, D31, I32. † August 2008. Contact: fmt21@cam.ac.uk. This research...

  15. Journal of Public Health in Africa 2012; volume 3:e19 [page 80] [Journal of Public Health in Africa 2012; 3:e19

    E-Print Network [OSTI]

    Journal of Public Health in Africa 2012; volume 3:e19 [page 80] [Journal of Public Health in Africa in Cameroon, Africa Andrew W. Nelson,1,2,4 Leah M. Feazel,1,3,4,5 Charles E. Robertson,2 John R. Spear,1

  16. Inaugural IEEE PES 2005 Conference and Exposition in Africa Durban, South Africa, 11-15 July 2005

    E-Print Network [OSTI]

    McCalley, James D.

    cases of transmission lines in the 700-800 kV range--in Canada, United States, Brazil, Venezuela, Russia in the U.S., Canada, South Africa, Brazil, Venezuela, Russia, Korea, India and Japan. Also briefly

  17. Persistent drying in the tropics linked to natural forcing

    E-Print Network [OSTI]

    Winter, Amos; Zanchettin, Davide; Miller, Thomas; Kushnir, Yochanan; Black, David; Lohmann, Gerrit; Burnett, Allison; Haug, Gerald H.; Estrella-Martínez, Juan; Breitenbach, Sebastian F. M.; Beaufort, Luc; Rubino, Angelo; Cheng, Hai

    2015-07-14

    Approximately half of the world’s population lives in the tropics, and future changes in the hydrological cycle will impact not just the freshwater supplies but also energy production in areas dependent upon hydroelectric power. It is vital...

  18. Eddy formation and propagation in the eastern tropical Pacific 

    E-Print Network [OSTI]

    Jhingran, Vikas Gopal

    1997-01-01

    Observations of eddies in the eastern tropical Pacific from TOPEX altimetry data show that there are seasonal and interannual variations in eddy activity. Comparisons between time of eddy formation and corresponding wind ...

  19. Reduction of tropical land region precipitation variability via transpiration

    E-Print Network [OSTI]

    Lee, Jung-Eun

    Tropical rainforests are known to exhibit low intraseasonal precipitation variability compared with oceanic areas with similar mean precipitation in observations and models. In the present study, the potential role of ...

  20. Commercial Building HVAC Energy Usage in Semi-Tropical Climates 

    E-Print Network [OSTI]

    Worbs, H. E.

    1987-01-01

    . Another consideration is the high ventilation loads due to cooling the moist air prevalent in semi-tropical climates. This paper describes a computer program which assesses all the pertinent variables which comprise the annual heating and cooling energy...

  1. Energy Design Guidelines for High Performance Schools: Tropical Island Climates

    SciTech Connect (OSTI)

    2004-11-01

    Design guidelines outline high performance principles for the new or retrofit design of K-12 schools in tropical island climates. By incorporating energy improvements into construction or renovation plans, schools can reduce energy consumption and costs.

  2. Tropical cyclone precipitation risk in the Southern United States

    E-Print Network [OSTI]

    Shedd, Sandra Michael

    2015-01-01

    This thesis works to evaluate the new rainfall algorithm that is used to simulate longterm tropical cyclone precipitation (TCP) climatology throughout the southeastern United States. The TCP climatology is based on a fleet ...

  3. Future precipitation changes and their implications for tropical peatlands

    E-Print Network [OSTI]

    Yang, Zong-Liang

    Future precipitation changes and their implications for tropical peatlands Wenhong Li,1 Robert E. Dickinson, R. Fu, G.-Y. Niu, Z.-L. Yang, and J. G. Canadell (2007), Future precipitation changes

  4. Precipitable water structure in tropical systems as estimated from TOVS 

    E-Print Network [OSTI]

    Hatfield, Eric

    1994-01-01

    The spatial and temporal structures of precipitable water (pW) in tropical systems are estimated using TIROS Operational Vertical Sounder (TOVS) radiances over ten cool seasons and two entire years. Statistical regression ...

  5. Layer inflow into precipitating convection over the western tropical Pacific

    E-Print Network [OSTI]

    Mechem, David B.; Houze, Robert A. Jr.; Chen, Shuyi S.

    2002-07-01

    A conceptual model of tropical convection frequently used in convective parametrization schemes is that of a parcel process in which boundary-layer air, characterized by high equivalent potential temperature, ascends to ...

  6. The Tropical Brown Alga Lobophora variegata (Lamouroux) Womersley: A Prospective Bioindicator for Ag Contamination in Tropical Coastal Waters

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    The Tropical Brown Alga Lobophora variegata (Lamouroux) Womersley: A Prospective Bioindicator determined in the brown alga Lobophora variegata, using radiotracer techniques. Results indicate that this widely distributed alga could be a useful bioindicator species for surveying silver contamination

  7. Response of tropical sea surface temperature, precipitation, and tropical cyclone-related variables to changes in global and local forcing

    E-Print Network [OSTI]

    Sobel, Adam

    A single-column model is used to estimate the equilibrium response of sea surface temperature (SST), precipitation, and several variables related to tropical cyclone (TC) activity to changes in both local and global forcing. ...

  8. Inequality, Agricultural Production and Poverty: With Focus on Large-scale / Small-scale Sugarcane Farms in South Africa.

    E-Print Network [OSTI]

    Ngepah, Nicholas

    2009-01-01

    Sugarcane Farms in South Africa. Nicholas Ngepah UniversityIndustrial Research, South Africa This paper is posted atDevelopment in Sub-Saharan Africa," sponsored jointly by the

  9. Angola: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop IncIowaWisconsin: EnergyYork Jump| Open Energy Information

  10. Sustainable waste management in Africa through CDM projects

    SciTech Connect (OSTI)

    Couth, R.; Trois, C.

    2012-11-15

    Highlights: Black-Right-Pointing-Pointer This is a compendium on GHG reductions via improved waste strategies in Africa. Black-Right-Pointing-Pointer This note provides a strategic framework for Local Authorities in Africa. Black-Right-Pointing-Pointer Assists LAs to select Zero Waste scenarios and achieve sustained GHG reduction. - Abstract: Only few Clean Development Mechanism (CDM) projects (traditionally focussed on landfill gas combustion) have been registered in Africa if compared to similar developing countries. The waste hierarchy adopted by many African countries clearly shows that waste recycling and composting projects are generally the most sustainable. This paper undertakes a sustainability assessment for practical waste treatment and disposal scenarios for Africa and makes recommendations for consideration. The appraisal in this paper demonstrates that mechanical biological treatment of waste becomes more financially attractive if established through the CDM process. Waste will continue to be dumped in Africa with increasing greenhouse gas emissions produced, unless industrialised countries (Annex 1) fund carbon emission reduction schemes through a replacement to the Kyoto Protocol. Such a replacement should calculate all of the direct and indirect carbon emission savings and seek to promote public-private partnerships through a concerted support of the informal sector.

  11. U.S. and South Africa Hold Bilateral Discussion on Building a...

    Broader source: Energy.gov (indexed) [DOE]

    will be held in Addis Ababa this June. The Ministerial supports President Obama's Power Africa initiative to double access to power in Sub-Saharan Africa as well as the...

  12. U.S. and South Africa Hold Bilateral Discussion on Building a...

    Energy Savers [EERE]

    U.S. and South Africa Hold Bilateral Discussion on Building a More Sustainable Energy Future U.S. and South Africa Hold Bilateral Discussion on Building a More Sustainable Energy...

  13. Review of Paul Darby's Africa, Football, and FIFA: Politics, Colonialism, and Resistance

    E-Print Network [OSTI]

    Mirmotahari, Emad

    2007-01-01

    of Pa ul Darby's Africa, Football, and FIFA : Politics,reading PauJ Darby's Africa, Football, and FIFA : Poliric~.the development of African football depends on its rigorous

  14. Geographic distribution and ecological niche of plague in sub-Saharan Africa

    E-Print Network [OSTI]

    Neerinckx, Simon B.; Peterson, A. Townsend; Gulinck, Hubert; Deckers, Jozef; Leirs, Herwig

    2008-10-23

    the potential geographic distribution of plague and its ecological requirements across Africa. Results: We predict a broad potential distributional area of plague occurrences across sub- Saharan Africa. General tests of model's transferability suggest that our...

  15. Development of infrastructure asset management software solutions for municipalities in South Africa 

    E-Print Network [OSTI]

    von Holdt, Christopher James

    2009-05-15

    This Record of Study presents the development of infrastructure asset management software solutions for municipalities in South Africa. The study was performed within a multidisciplinary engineering consulting company in South Africa...

  16. NORTHWEST AFRICA 176: A UNIQUE IRON METEORITE WITH SILICATE INCLUSIONS RELATED TO BOCAIUVA. Menghua Liu

    E-Print Network [OSTI]

    Floss, Christine

    NORTHWEST AFRICA 176: A UNIQUE IRON METEORITE WITH SILICATE INCLUSIONS RELATED TO BOCAIUVA. Menghua Africa 176 iron me- teorite with silicate inclusions was found at the border of Morocco and Algeria

  17. DETERMINATION, CONTROL AND IMPROVEMENT OF AN SKA RADIO ENVIRONMENT IN SOUTH AFRICA

    E-Print Network [OSTI]

    Ellingson, Steven W.

    DETERMINATION, CONTROL AND IMPROVEMENT OF AN SKA RADIO ENVIRONMENT IN SOUTH AFRICA By Neël Smuts1 ABSTRACT South Africa, in its bid to host the SKA2 , has adopted a dual approach to determine, assess

  18. A modal perspective of preferential entailment K. Britz, School of Computing, Univ. of South Africa

    E-Print Network [OSTI]

    Labuschagne, Willem

    A modal perspective of preferential entailment K. Britz, School of Computing, Univ. of South Africa J. Heidema, Dept. of Mathematics, Univ. of South Africa W. Labuschagne, Dept. of Computer Science

  19. Promoting Blood Donation in Sub-Saharan Africa: Role of Culture and Interventions 

    E-Print Network [OSTI]

    Appiah, Bernard

    2013-12-13

    Inadequate blood donation is a major public health problem in Sub-Saharan Africa. This study examines the influence of culture and communication on blood donation in Sub-Saharan Africa, with particular focus on Ghana. The literature...

  20. Africa n visitatori Asia n visitatori America Latina n visitatori Algeria 109 India 348 Brasile 131

    E-Print Network [OSTI]

    Brasile 131 Nigeria 86 Iran 150 Argentina 78 Egitto 66 Cina 137 Colombia 71 Sud Africa 63 Pakistan 85

  1. Thermal, hydrous, and mechanical states of the mantle transition zone beneath southern Africa

    E-Print Network [OSTI]

    Shen, Yang

    Thermal, hydrous, and mechanical states of the mantle transition zone beneath southern Africa John cratons in southern Africa; consequently, the mantle transition zone is 20 km thicker than beneath post: lithosphere; upper mantle; transition zone; cratoni convection; Southern Africa 1. Introduction The upper

  2. Evidence for a new introduction of the pitch canker fungus Fusarium circinatum in South Africa

    E-Print Network [OSTI]

    Evidence for a new introduction of the pitch canker fungus Fusarium circinatum in South Africa E. T (FABI), University of Pretoria, Pretoria 0002 South Africa Fusarium circinatum causes pitch canker of Pinus species in many parts of the world. The fungus was first recorded in South Africa in 1990

  3. Satellite observations of the seasonal cycles of absorbing aerosols in Africa

    E-Print Network [OSTI]

    Graaf, Martin de

    Satellite observations of the seasonal cycles of absorbing aerosols in Africa related to monsoon of aerosol emissions from the wet surface. 1. Introduction The main aerosol types occurring over Africa Africa can be characterized using Absorbing Aerosol Index (AAI) data from Global Ozone Monitoring

  4. Updated 01/2013 http://ilint.illinois.edu/ 1 Professional Travel in South Africa

    E-Print Network [OSTI]

    Chen, Deming

    Updated 01/2013 http://ilint.illinois.edu/ 1 Professional Travel in South Africa The Rainbow Nation South Africa is one of the most multicultural countries in the world. In urban areas many different ethnic groups make up the population. In addition to the indigenous black peoples of South Africa

  5. First report of bacterial wilt caused by Ralstonia solanacearumon eucalypts in South Africa

    E-Print Network [OSTI]

    First report of bacterial wilt caused by Ralstonia solanacearumon eucalypts in South Africa BY T. A of Pretoria, 0002 Pretoria, South Africa. E-mail: Teresa. Coutinho@FABI.up.ac.za; 3 Department of Microbiology and Biochemistry, University of the Orange Free State, PO Box 339, Bloemfontein 9300, South Africa; 4 Agricultural

  6. IST-Africa 2006 Conference Proceedings Paul Cunningham and Miriam Cunningham (Eds)

    E-Print Network [OSTI]

    Blake, Edwin

    IST-Africa 2006 Conference Proceedings Paul Cunningham and Miriam Cunningham (Eds) IIMC, 7701, South Africa Tel: +27 21 650 3661, Fax: + 27 21 689 9465, Email: edwin@cs.uct.ac.za 2 Dept Computer Science, University of the Western Cape, Bellville, 7535, South Africa Tel: +27 21 959 2516, Fax

  7. outh Africa is a society in transition. The building of a broad-based

    E-Print Network [OSTI]

    Loss, Daniel

    S outh Africa is a society in transition. The building of a broad-based research culture is central that existed in South Africa before 1994 -- the year of the first post-apartheid democratic elections -- show Africa, and the establishment of the National System of Innovation (NSI) has been an important step

  8. New species of Anthostomella on fynbos, with a key to the genus in South Africa

    E-Print Network [OSTI]

    New species of Anthostomella on fynbos, with a key to the genus in South Africa Seonju LEE, South Africa. E-mail : slee@maties.sun.ac.za Received 3 April 2002; accepted 18 November 2002. A study of saprobic fungi occurring on the fynbos of the Western Cape Province of South Africa yielded four unknown

  9. New Opportunity for Graduate Study Human Well-being and the Environment in Africa

    E-Print Network [OSTI]

    Vallino, Joseph J.

    New Opportunity for Graduate Study Human Well-being and the Environment in Africa The Environmental science Partnership for International Research and Education (PIRE) project in Africa. The project research in Africa in the fields of remote sensing, ecology, sociology or economics and who desire training

  10. History and the Technopolitics of Identity: The Case of Apartheid South Africa*

    E-Print Network [OSTI]

    Edwards, Paul N.

    History and the Technopolitics of Identity: The Case of Apartheid South Africa* Paul N. Edwards and computers in apartheid South Africa, considering these systems ­ and apartheid more generally ­ as forms-apartheid activists, who fought to limit South Africa's access to these systems. We argue that nuclear systems enacted

  11. TCP-Africa: An Adaptive and Fair Rapid Increase Rule for Scalable TCP

    E-Print Network [OSTI]

    Riedi, Rudolf H.

    1 TCP-Africa: An Adaptive and Fair Rapid Increase Rule for Scalable TCP Ryan King, Richard Baraniuk propose a new delay sensitive- congestion avoidance mode (TCP-Africa) that allows for scalable, aggressive, efficiency, and fairness of TCP-Africa. Index Terms-- Scalable TCP, high-bandwidth-delay products, TCP

  12. Medieval/Africa The Trans-Saharan World, 500-1700

    E-Print Network [OSTI]

    Wolfe, Patrick J.

    Medieval/Africa The Trans-Saharan World, 500-1700 A symposium exploring the complex institutional, cultural, and religious relation- ships tying the societies of sub-Saharan Africa to one another for Humanities in Africa Reception to follow in the Braun Room of Andover Hall Friday, 6 February CGIS S010 (the

  13. New and rare coelomycetes with appendage-bearing conidia from Pondoland, South Africa

    E-Print Network [OSTI]

    MYCOTAXON New and rare coelomycetes with appendage-bearing conidia from Pondoland, South AfricaPretoria, Pretoria 0001, Republic of South Africa January-March2010Volume 111, pp. 309-322 Abstract - During a mycologicalexcursion to the Pondoland region of South Africa in 2008, six interesting anamorphic fungi with appendage

  14. Bacterial Blight and Dieback of Eucalyptus Species, Hybrids, and Clones in South Africa

    E-Print Network [OSTI]

    Bacterial Blight and Dieback of Eucalyptus Species, Hybrids, and Clones in South Africa T. A- technology Institute (FABI), University of Pretoria, Pretoria 0002, South Africa; ,I, I\\lergaert and 1\\1. C University for Christian Higher Education, Private Bag X6001, Potchefstroom 2520, South Africa;,. Swings

  15. ForPeerReview Petrology of the Nakhlite (Martian) Meteorite Northwest Africa 998

    E-Print Network [OSTI]

    Treiman, Allan H.

    ForPeerReview Only Petrology of the Nakhlite (Martian) Meteorite Northwest Africa 998 Journal Northwest Africa 998 Allan H. Treiman Lunar and Planetary Institute, 3600 Bay Area Blvd., Houston, TX 77058PeerReview Only ABSTRACT Nakhlite Northwest Africa (NWA) 998 is an augite-rich cumulate igneous rock, with mineral

  16. Susceptibility of provenances and families of Pinus maximinoi and Pinus tecunumanii to frost in South Africa

    E-Print Network [OSTI]

    in South Africa R. G. Mitchell · M. J. Wingfield · G. R. Hodge · W. S. Dvorak · T. A. Coutinho Received: 15+Business Media B.V. 2012 Abstract The future of South Africa's most important pine species, Pinus patula subtropical species that provide an alternative to planting P. patula on the warmer sites of South Africa

  17. Africa n visitatori Asia n visitatori America Latina n visitatori Marocco 81 India 367 Argentina 142

    E-Print Network [OSTI]

    Africa n° visitatori Asia n° visitatori America Latina n° visitatori Marocco 81 India 367 Venezuela 64 Ruanda 50 Armenia 94 Colombia 49 Senegal 50 Turchia 37 Cuba 46 22 PMA in Africa Algeria America Latina 196 Africa 194 Europa dell'Est 121 5 PMA in Asia più altre 32 nazioni 1

  18. IST-Africa 2007 Conference Proceedings Paul Cunningham and Miriam Cunningham (Eds)

    E-Print Network [OSTI]

    Blake, Edwin

    IST-Africa 2007 Conference Proceedings Paul Cunningham and Miriam Cunningham (Eds) IIMC, University of Cape Town, Private Bag X3, Rondebosch 7701, South Africa Tel: +27 21 650 3661, Fax: + 27 21 689 Town, Private Bag X3, Rondebosch 7701, South Africa Tel: +27 21 650 4606, Fax: + 27 21 650 4104, Email

  19. 830 nature physics | VOL 6 | NOVEMBER 2010 | www.nature.com/naturephysics Material progress in Africa

    E-Print Network [OSTI]

    Loss, Daniel

    progress in Africa Nithaya Chetty, Richard M. Martin and Sandro Scandolo A school on computational to the development of research in Africa. T hroughout the African Union, there is tacit understanding be the source of advancement and cooperation, with the potential to overcome political barriers within Africa

  20. BIOFUEL DEVELOPMENT AND LARGE-SCALE LAND DEALS IN SUB-SAHARAN AFRICA

    E-Print Network [OSTI]

    1 BIOFUEL DEVELOPMENT AND LARGE-SCALE LAND DEALS IN SUB-SAHARAN AFRICA GIORGIA GIOVANNETTI European.giovannetti@unifi.it ELISA TICCI University of Siena, ticci4@unisi.it Abstract Africa's biofuel potential over the last ten specifications. Key words: biofuels, land acquisitions, Poisson regression, Africa. JEL Codes: O13, F21, N57, Q24

  1. Author / Computing, 2000, Vol. 0, Issue 0, 1-2 Digital Storytelling in Africa

    E-Print Network [OSTI]

    Blake, Edwin

    Author / Computing, 2000, Vol. 0, Issue 0, 1-2 1 Digital Storytelling in Africa Gary Marsden1 Science, University of Cape Town, South Africa, gaz@acm.org, http://www.cs.uct.ac.za/ 2) Meraka Institute of the CSIR, Pretoria, South Africa, nic.bidwell@gmail.com, http://www.meraka.org.za/ Abstract: In this paper

  2. IST-Africa 2013 Conference Proceedings Paul Cunningham and Miriam Cunningham (Eds)

    E-Print Network [OSTI]

    Blake, Edwin

    IST-Africa 2013 Conference Proceedings Paul Cunningham and Miriam Cunningham (Eds) IIMC International Information Management Corporation, 2013 ISBN: 978-1-905824-38-0 Copyright © 2013 The authors www.IST-Africa, Private Bag X3 Rondebosch 7701, South Africa Tel: +27 21 650 2663, edwin@cs.uct.ac.za, gaz

  3. Long-term variability and rainfall control of savanna fire regimes in equatorial East Africa

    E-Print Network [OSTI]

    Hu, Feng Sheng

    Long-term variability and rainfall control of savanna fire regimes in equatorial East Africa D A V Abstract Fires burning the vast grasslands and savannas of Africa significantly influence the global carbon in equatorial East Africa. The charcoal-inferred shifts in local and regional fire regimes were compared

  4. Decline of Birds in a Human Modified Coastal Dune Forest Landscape in South Africa

    E-Print Network [OSTI]

    Pretoria, University of

    @zoology.up.ac.za Introduction Coastal dune forest is one of South Africa's rarest vegetation types; restricted to the easternDecline of Birds in a Human Modified Coastal Dune Forest Landscape in South Africa Morgan J modified coastal dune forest landscape in northern KwaZulu-Natal, South Africa. However, occurrence does

  5. Mantle upwellings and convective instabilities revealed by seismic tomography and helium isotope geochemistry beneath eastern Africa

    E-Print Network [OSTI]

    Montagner, Jean-Paul

    geochemistry beneath eastern Africa Jean-Paul Montagner,1 Bernard Marty,2 Ele´onore Stutzmann,1 De for North and East Africa using a high resolution three-dimensional anisotropic tomographic model derived from seismic data of a French experiment ``Horn of Africa'' and existing broadband data. The joint

  6. Factors influencing infection of Acacia mearnsii by the wilt pathogen Ceratocystis albifundus in South Africa

    E-Print Network [OSTI]

    in South Africa By R. N. Heath1 , M. Van Der Linde2 , H. Groeneveld2 , B. D. Wingfield1 , M. J. Wingfield1 and Agricultural Biotechnology Institute (FABI), University of Pretoria, Pretoria, South Africa; 2 Department of Statistics, University of Pretoria, Pretoria, South Africa; 3 Department of Microbiology and Plant Pathology

  7. Development Impact Assessment (DIA) Case Study. South Africa

    SciTech Connect (OSTI)

    Cox, Sadie; Nawaz, Kathleen; Sandor, Debra

    2015-05-19

    This case study reviews South Africa’s experience in considering the impacts of climate change action on development goals, focusing on the South African energy sector and development impact assessments (DIAs) that have and could be used to influence energy policy or inform the selection of energy activities. It includes a review of assessments—conducted by government ministries, technical partners, and academic institutes and non-governmental organizations (NGOs)—that consider employment, health, and water implications of possible energy sector actions, as well as multi-criteria impact assessments.

  8. Tropical climate variability from the last glacial maximum to the present

    E-Print Network [OSTI]

    Dahl, Kristina Ariel

    2005-01-01

    This thesis evaluates the nature and magnitude of tropical climate variability from the Last Glacial Maximum to the present. The temporal variability of two specific tropical climate phenomena is examined. The first is the ...

  9. Equilibrium Tropical Cyclone Size in an Idealized State of Axisymmetric Radiative–Convective Equilibrium

    E-Print Network [OSTI]

    Chavas, Daniel Robert

    Tropical cyclone size remains an unsolved problem in tropical meteorology, yet size plays a significant role in modulating damage. This work employs the Bryan cloud model (CM1) to systematically explore the sensitivity of ...

  10. A climatology of tropical synoptic scale behavior from TOVS-estimated precipitable water 

    E-Print Network [OSTI]

    Mackey, Morgan Douglas

    1996-01-01

    Tropical synoptic scale behavior is examined using 3 to 8 day filtered precipitable water (PW) estimated from TOVS operational satellite observations for 24 three-month seasons. Zonally-oriented tropical convergence zones ...

  11. The role of piscivores in a species-rich tropical river 

    E-Print Network [OSTI]

    Layman, Craig Anthony

    2004-11-15

    Much of the world's species diversity is located in tropical and sub-tropical ecosystems, and a better understanding of the ecology of these systems is necessary to stem biodiversity loss and assess community- and ...

  12. Sensitivity of Tropical Cyclone Intensity to Ventilation in an Axisymmetric Model

    E-Print Network [OSTI]

    Tang, Brian

    The sensitivity of tropical cyclone intensity to ventilation of cooler, drier air into the inner core is examined using an axisymmetric tropical cyclone model with parameterized ventilation. Sufficiently strong ventilation ...

  13. Tropical Pacific nutrient dynamics in the modern and pleistocene ocean : insights from the nitrogen isotope system

    E-Print Network [OSTI]

    Rafter, Patrick Anthony

    2009-01-01

    eastern equatorial Pacific Ocean during the past 3 M.Y. ,in the western tropical Pacific Ocean in the Holocene epoch,eastern tropical North Pacific Ocean, Mar. Chem. , 3, 271–

  14. Tropical cyclone motion and recurvature in TCM-90. Master's thesis

    SciTech Connect (OSTI)

    Fitzpatrick, M.E.

    1992-01-01

    Rawinsonde and satellite data collected during the Tropical Cyclone Motion (TCM90) experiment, which was conducted during the summer of 1990 in the Western North pacific, is used to examine tropical cyclone steering motion and recurvature. TCM-90 composite results are compared with those found in a composite study using twenty-one years (1957-77) of Western North Pacific rawinsonde data during the same August-September period and also for all months during this same 21-year period. Both data sets indicate that the composite deep-layer-mean (850-300 mb) winds 5-7 deg from the cyclone center provide an important component of the steering flow for tropical cyclones. However, despite the rawinsonde data enhancements of the TCM-90 experiment, data limitations prevented an accurate observation of steering flow conditions at individual time periods or for the average of only 5-10 time periods when composited together.

  15. Tropical forest responses to increasing atmospheric CO2: current knowledge and opportunities for future research

    E-Print Network [OSTI]

    Bermingham, Eldredge

    their representation in Earth system models. Tropical forests play a significant role in the global carbon cycle

  16. The divergent wind component in data sparse tropical wind fields 

    E-Print Network [OSTI]

    Snyder, Bruce Alan

    1985-01-01

    THE DIVERGENT WIND COMPONENT IN DATA SPARSE TROPICAL WIND FIELDS A Thesis by BRUCE ALAN SNYDER Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE December... 1985 Major Subject: Meteorology THE DIVERGENT WIND COMPONENT IN DATA SPARSE TROPICAL WIND FIELDS A Thesis by BRUCE ALAN SNYDER Approved as to style and content by: James P. McGuirk (Co-Chairman) Aylmer IL Thompson (Co-Chairman) W. Homer...

  17. Global warming shifts Pacific tropical cyclone location MinHo Kwon,1,3

    E-Print Network [OSTI]

    Li, Tim

    Global warming shifts Pacific tropical cyclone location Tim Li,1 MinHo Kwon,1,3 Ming Zhao,3 Jong) is used to investigate the change of tropical cyclone frequency in the North Pacific under global warming, and W. Yu (2010), Global warming shifts Pacific tropical cyclone location, Geophys. Res. Lett., 37, L

  18. An optimizing reduced order FDS for the tropical Pacific Ocean reduced gravity model

    E-Print Network [OSTI]

    Aluffi, Paolo

    An optimizing reduced order FDS for the tropical Pacific Ocean reduced gravity model Zhendong Luoa) for the tropical Pacific Ocean reduced gravity model. Ensembles of data are compiled from transient solutions computed from the discrete equation system derived by FDS for the tropical Pacific Ocean reduced gravity

  19. Reduced Order Modeling of the Upper Tropical Pacific Ocean Model Using Proper Orthogonal Decomposition

    E-Print Network [OSTI]

    Aluffi, Paolo

    Reduced Order Modeling of the Upper Tropical Pacific Ocean Model Using Proper Orthogonal of a large-scale upper ocean circulation in the tropic Pacific domain. We construct different POD models-scale seasonal variability of the tropic Pacific obtained by the original model is well captured by a low

  20. Multivariate Data Assimilation in the Tropics by Using Equatorial Waves NEDJELJKA ZAGAR

    E-Print Network [OSTI]

    Zagar, Nedjeljka

    Multivariate Data Assimilation in the Tropics by Using Equatorial Waves NEDJELJKA ZAGAR 1 multivariate assimila- tion methodology. This applies to both dry and moist idealized tropical systems as well as to a 4D-Var NWP assimilation system. Key words: Tropics, Data assimilation, 4D-Var, Multivariate

  1. Estimating recharge thresholds in tropical karst island aquifers: Barbados, Puerto Rico and Guam

    E-Print Network [OSTI]

    Banner, Jay L.

    Estimating recharge thresholds in tropical karst island aquifers: Barbados, Puerto Rico and Guam in tropical island aquifers, such as Barbados, Guam and Puerto Rico, are significantly influenced by tropical of rainfall. The karst aquifers on Barbados, Guam and Puerto Rico have similar rainwater and groundwater

  2. Primary production in the eastern tropical Pacific: A review J. Timothy Pennington a

    E-Print Network [OSTI]

    Pennington, J. Timothy

    , Peru Abstract The eastern tropical Pacific includes 28 million km2 of ocean between 23.5°N phytoplankton growth (and nitrogen fixation) over large portions of the open-ocean eastern tropical Pacific Pacific. Seasonal cycles are weak over much of the open-ocean eastern tropical Pacific, although several

  3. Eddy mean flow decomposition and eddy diffusivity estimates in the tropical Pacific Ocean

    E-Print Network [OSTI]

    Eddy mean flow decomposition and eddy diffusivity estimates in the tropical Pacific Ocean: 2] Eddy diffusivity of the surface velocity field in the tropical Pacific Ocean was estimated using diffusivity estimates in the tropical Pacific Ocean: 2. Results, J. Geophys. Res., 107(C10), 3154, doi:10

  4. Regional Patterns of Tropical Indo-Pacific Climate Change: Evidence of the Walker Circulation Weakening*

    E-Print Network [OSTI]

    Xie, Shang-Ping

    in the tropical eastern Pacific and western Indian Ocean than in the tropical western Pacific and eastern IndianRegional Patterns of Tropical Indo-Pacific Climate Change: Evidence of the Walker Circulation Weakening* HIROKI TOKINAGA, SHANG-PING XIE, AND AXEL TIMMERMANN International Pacific Research Center, SOEST

  5. Recent widening of the tropical belt from global tropopause statistics: Sensitivities

    E-Print Network [OSTI]

    Birner, Thomas

    Recent widening of the tropical belt from global tropopause statistics: Sensitivities Thomas Birner 2010. [1] Several recent studies have shown evidence for a widening of the tropical belt over the past of the resulting widening trend of the tropical belt to these thresholds is investigated using four different

  6. A solar box cooker for mass production in East Africa

    SciTech Connect (OSTI)

    Funk, P.A.; Wilcke, W.F.

    1992-12-31

    A solar box cooker produced in Tanzania, East Africa with indigenous materials is described. When compared to a commercially produced glass and cardboard one, it was found to perform as well. Heat transfer through each major component of the cooker is presented. The smallest losses were through the walls of the box. The greatest losses were observed in the cover system.

  7. Interdisciplinary Minor Programs Africa in the New World

    E-Print Network [OSTI]

    Dennett, Daniel

    to the Americas *History 171 The American South since 1865 History 185 Research Seminar in African History Music 5 *Anthropology 50 Freshman Seminar *Anthropology 118 Culture and Power in Africa Anthropology 149 Selected Topics Development *Economics 36 Macroeconomic Analysis for Development *Economics 60 International Economics

  8. Basal Anthropoids from Egypt and the Antiquity of Africa's Higher

    E-Print Network [OSTI]

    Licciardi, Joseph M.

    Basal Anthropoids from Egypt and the Antiquity of Africa's Higher Primate Radiation Erik R remains of the primitive anthropoid Biretia from È37-million- year-old rocks in Egypt. Biretia is unique Egypt (5, 6). Recent paleontological work in Egypt_s Fayum Depression has resulted in the discov- ery

  9. Pathogenicity of Cryphonectria eucalypti to Eucalyptus clones in South Africa

    E-Print Network [OSTI]

    Pathogenicity of Cryphonectria eucalypti to Eucalyptus clones in South Africa Marieka Gryzenhouta in revised form 8 April 2002; accepted 16 May 2002 Abstract Eucalyptus spp. are planted in many parts of the forestry industry. The canker pathogen, Cryphonectria eucalypti, is pathogenic to Eucalyptus spp

  10. Evaluation of Mali, West Africa Airborne Measurements to Access the

    E-Print Network [OSTI]

    Delene, David J.

    Evaluation of Mali, West Africa Airborne Measurements to Access the Potential of Enhancing if cloud seeding in Mali could be beneficial.c ·Identify optimal seeding method for enhancing precipitation in the Mali region based on conceptual models. #12;Measurement Importance · The potential to enhancing

  11. Three Years of Airborne Measurements in Mali, West Africa

    E-Print Network [OSTI]

    Delene, David J.

    Three Years of Airborne Measurements in Mali, West Africa David Delene Department of Atmospheric of adapting operational programs from other locations to the Mali region. · Advance local scientific knowledge Measurement Objectives · Determine the variability of aerosol and cloud properties in Mali and how

  12. Evaluation of Mali, West Africa Airborne Measurements to Access the

    E-Print Network [OSTI]

    Delene, David J.

    Evaluation of Mali, West Africa Airborne Measurements to Access the Potential of Enhancing Determine if cloud seeding in Mali could be beneficial.b Help determine what is the optimal seeding method for enhancing precipitation in the Mali region. #12;Measurement Importance The potential to enhancing

  13. MSU at Work in Africa: Safe Water and

    E-Print Network [OSTI]

    MSU at Work in Africa: Safe Water and Environmental Health Issues and Problems Water contamination and lack of infrastructure for water and sewage systems have contributed to the global burden of waterborne to waterborne and water-based diseases, including malaria, diarrheal diseases, river blindness

  14. Africa N. of visitors Asia N. of visitors Latin America N. of visitors Morocco 81 India 367 Argentina 142

    E-Print Network [OSTI]

    Africa N. of visitors Asia N. of visitors Latin America N. of visitors Morocco 81 India 367 Argentina 142 South Africa 69 Iran 201 Mexico 126 Nigeria 65 Pakistan 140 Brazil 120 Egypt in LDCs in Africa Algeria 50 Korea Rep. 34 Costa Rica 44 16 from rest of Africa Ghana 37

  15. Hydrological SciencesJournaldes Sciences Hydrologiques, 54(4) August 2009 Special issue: Groundwater and Climate in Africa

    E-Print Network [OSTI]

    Jones, Peter JS

    : Groundwater and Climate in Africa 655 Groundwater and climate in Africa--a review RICHARD G. TAYLOR1 , ANTONIS on water resources commonly exclude groundwater. This omission is of particular concern in Africa, where. The Groundwater and Climate in Africa Conference (http://www.gwclim.org/), held in Kampala, Uganda on 24­28 June

  16. Increasing carbon storage in intact African tropical forests

    E-Print Network [OSTI]

    Malhi, Yadvinder

    to predictions of future levels of atmospheric carbon dioxide1,2 . The role of tropical forests is critical dioxide concentrations, may be the cause of the increase in carbon stocks13 , as some theory14 and models2 with estimates of fossil fuel emissions, ocean carbon fluxes and carbon released from land-use change, indicate

  17. WMO/CAS/WWW SEVENTH INTERNATIONAL WORKSHOP ON TROPICAL CYCLONES

    E-Print Network [OSTI]

    Smith, Roger K.

    .smith@lmu.de Working Group Members: Zhuo Wang (Univ. Illinois, USA), David Raymond (New Mexico Tech., New Mexico, USA (i.e. thunderstorm activity) and a definite cyclonic surface wind circulation (Holland 1993)." Notably, this definition does not invoke any wind threshold. The same glossary defines a tropical

  18. Reduction of tropical land region precipitation variability via transpiration

    E-Print Network [OSTI]

    Gentine, Pierre

    plants through open stomata: this process (transpiration) cools the plant and facilitates transportReduction of tropical land region precipitation variability via transpiration Jung-Eun Lee,1 in observations and models. In the present study, the potential role of transpiration for this difference

  19. In Situ Survival of Genetically Engineered Microorganisms in a Tropical

    E-Print Network [OSTI]

    Hazen, Terry

    . Alvarez, G. M. Yumet, and C. L. Santiago Department of Biology, P.O. Box 23360, University of Puerto Rico, Rio Piedras, Puerto Rico 00931-3360 T. C. Hazen Savannah River Laboratory, Environmental Sciences microorganisms (GEMs) and their interactions with the environmental microbiota of a tropical river

  20. MET 416: TROPICAL ANALYSIS AND FORECASTING Spring Semester 2013

    E-Print Network [OSTI]

    current (nowcasting) and expected weather, using all available real-time operational weather data Exam 4/9 Summer trade-wind weather based on HaRP 4/11-16 Large-scale influences, Diurnal cycle to the development of tropical storm systems and mesoscale weather. Lectures will include a forecasting perspective

  1. Hybrid coupled models of the tropical Pacific: I interannual variability

    E-Print Network [OSTI]

    Tang, Youmin

    Y. Tang Hybrid coupled models of the tropical Pacific: I interannual variability Received: 20 Two hybrid coupled models (HCMs), an intermediate complexity dynamical ocean model cou- pled to either), hybrid models (e.g., Barnett et al. 1993; Balmaseda et al. 1994,1995), and fully coupled general

  2. Tropical Pacific mid-latitude teleconnections in medieval times

    E-Print Network [OSTI]

    Cobb, Kim

    records from widely distributed regions around the planet, and in many cases is consistent with a cool centennial-scale drought, elevated incidence of wild fire, cool sea surface temperatures (SSTs) along). Proxy records from the tropical Pacific Ocean show contemporaneous changes indicating cool central

  3. The efficiency of diabatic heating and tropical cyclone intensification

    E-Print Network [OSTI]

    Smith, Roger K.

    The efficiency of diabatic heating and tropical cyclone intensification Roger K. Smitha and Michael cyclones to the increasing "efficiency" of diabatic heating in the cyclone's inner core region associated with deep convection. The efficiency, in essence the amount of temperature warming compared to the amount

  4. Tropical geometry of statistical models Lior Pachter and Bernd Sturmfels

    E-Print Network [OSTI]

    Marcolli, Matilde

    for graphical models in statistical learning theory (5), but it differs from other (more classical) notionsTropical geometry of statistical models Lior Pachter and Bernd Sturmfels Department of Mathematics, University of California, Berkeley, CA 94720 Communicated by Stephen E. Fienberg, Carnegie Mellon University

  5. Tropical forest soil microbial communities couple iron and carbon biogeochemistry

    SciTech Connect (OSTI)

    Dubinsky, E.A.; Silver, W.L.; Firestone, M.K.

    2009-10-15

    We report that iron-reducing bacteria are primary mediators of anaerobic carbon oxidation in upland tropical soils spanning a rainfall gradient (3500 - 5000 mm yr-1) in northeast Puerto Rico. The abundant rainfall and high net primary productivity of these tropical forests provide optimal soil habitat for iron-reducing and iron-oxidizing bacteria. Spatially and temporally dynamic redox conditions make iron-transforming microbial communities central to the belowground carbon cycle in these wet tropical forests. The exceedingly high abundance of iron-reducing bacteria (up to 1.2 x 10{sup 9} cells per gram soil) indicated that they possess extensive metabolic capacity to catalyze the reduction of iron minerals. In soils from the higher rainfall sites, measured rates of ferric iron reduction could account for up to 44 % of organic carbon oxidation. Iron reducers appeared to compete with methanogens when labile carbon availability was limited. We found large numbers of bacteria that oxidize reduced iron at sites with high rates of iron reduction and large numbers of iron-reducers. the coexistence of large populations of ironreducing and iron-oxidizing bacteria is evidence for rapid iron cycling between its reduced and oxidized states, and suggests that mutualistic interactions among these bacteria ultimately fuel organic carbon oxidation and inhibit CH4 production in these upland tropical forests.

  6. Southern Hemisphere Additional Ozonesondes (SHADOZ) 19982000 tropical ozone climatology

    E-Print Network [OSTI]

    Thompson, Anne

    Southern Hemisphere Additional Ozonesondes (SHADOZ) 1998­2000 tropical ozone climatology 1. Comparison with Total Ozone Mapping Spectrometer (TOMS) and ground-based measurements Anne M. Thompson,1 Additional Ozonesondes (SHADOZ) project and established from operational sites, provided over 1000 ozone

  7. Geochronology of Quaternary glaciations from the tropical Cordillera Huayhuash, Peru

    E-Print Network [OSTI]

    Mark, Bryan G.

    Geochronology of Quaternary glaciations from the tropical Cordillera Huayhuash, Peru Sarah R. Hall to peaks >4800 m a.s.l. Geomorphology and geochronology in the nearby Cordillera Blanca and Junin Plain et al., 2005a, b) and thus completes a north-south glacial geochronologic transect spanning w1

  8. AGCM Precipitation Biases in the Tropical Atlantic M. BIASUTTI

    E-Print Network [OSTI]

    Biasutti, Michela

    AGCM Precipitation Biases in the Tropical Atlantic M. BIASUTTI Lamont-Doherty Earth Observatory precipitation in the Southern Hemisphere in boreal spring and in the Caribbean region in boreal summer precipitation maximum does not occur there. This is the case even though these GCMs accurately place the maximum

  9. Possible linkages between Saharan dust and tropical cyclone rain band invigoration in the eastern Atlantic during NAMMA-06

    E-Print Network [OSTI]

    Rutledge, Steven

    for tropical cyclogenesis, it also provides an infusion of cloud condensation and ice nuclei which can

  10. agir au Sud avec le Sud et

    E-Print Network [OSTI]

    « moins avancés », tels que le Mozambique, l'Éthiopie et l'Angola. Cer- tains d'entre eux ont connu une Africa (Afrique du Sud, Cap Town); · LBMV, Laboratoire de biotechnologie microbienne et végétale (Maroc

  11. Predicting the Introduction and Transmission of Rift Valley Fever Virus in the United States 

    E-Print Network [OSTI]

    Golnar, Andrew John

    2014-12-09

    Africa, Nigeria, Egypt, Senegal, Ethiopia, Yemen and Angola are identified as regions at-risk for importing RVFV to the U.S. Published and unpublished data on RVFV vector competence, vertebrate host competence, and mosquito feeding patterns from...

  12. INSTITUT D'ECONOMIE ET DE POLITIQUE DE L'ENERGIE

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    INSTITUT D'ECONOMIE ET DE POLITIQUE DE L'ENERGIE The liberalisation of the European gas market. Appendix 1), the countries of the Gulf, West Africa (Nigeria, Angola), and South America (Trinidad

  13. Product Quality Assurance for Off-Grid Lighting in Africa

    SciTech Connect (OSTI)

    World Bank; Mills, Evan; Mills, Evan

    2008-07-13

    Although the emergence of markets for high efficiency off-grid lighting technologies holds promise, realizing the potential of this opportunity on a long-term, sustainable basis requires careful attention to issues of product quality, consumer protection, and the potential for significant 'market spoiling', in anticipation of increases of sales of low cost, low performance off-grid lighting products. The goal of the Lighting Africa quality assurance workshop was to articulate strategies to mitigate the dangers of market spoiling and to explore ways to protect consumers from misleading advertising for sales of inferior, off-grid lighting products in the context of Lighting Africa's overarching objective to support the industry in developing a robust off-grid lighting market in Africa. The workshop resulted in the identification of two strategic approaches for meeting Lighting Africa quality assurance programmatic needs. The first strategy is intended to meet a short-term programmatic need for quality associated with requests for lighting products by bulk procurement agents, such as in a World Bank-financed project. The development of procurement specifications and test procedures that could be used in a quality/usability screening method in order to provide guidance for forthcoming large volume purchases emerged as the best solution to meet this need. Such approaches are used in World Bank-financed solar home systems (SHSs) projects in Bangladesh, Sri Lanka, and China, among others. However, unlike the SHSs which have multiple balance-of-system (BOS) components warranting the need for an array of specifications for individual components, stand alone lighting systems require specifications that are amenable to individual light points. To test this approach, Lighting Africa elected to use the technical specifications issued by the Photovoltaic Global Approval Program for solar lanterns that use CFL bulbs (PVRS11A) as the basis of qualifying such products. A contract has been competitively awarded to the Global Approval Program for Photovoltaics (PV GAP) under the Lighting Africa Program to select and test ten solar lantern product models. Lantern selection will be determined based on a number of criteria, among them, the ability to provide a daily duty cycle of at least 3 hours of light, the number of days of autonomy of battery, the volume of sales (especially in Africa), and whether or not the manufacturing facility is ISO 9000 certified. Those that are confirmed as meeting the specifications may be eligible to receive a PVGAP quality seal. The work is being carried out in partnership with the Photovoltaic and Wind Quality Test Center in Beijing, China and TUV Rhineland in Koeln, Germany. As off-grid LED-based stand-alone lighting products is in a nascent stage of development compared to CFL-based lanterns, Lighting Africa will support the development of a 'Quality Screening' approach to selecting LED lighting, in order not to delay consumers benefiting from such advances. The screening methodology could be used by procurement agencies to qualify LED lighting products for bulk or programmatic procurements. The main elements of this work comprises of developing a procurement specification and test procedure for undertaking a 'quick' quality/usability screening to be used for procuring LED lights and to test up to 30 LED-based lights to screen products that meet the requirement. The second strategy is intended to meet a longer-term need associated with creating a self-sustaining product quality assurance program that will effectively protect the African consumer, prevent significant market spoiling, adapt with expected technological advancements over the long-term--in other words, give consumers the ability to detect quality products and the information needed to find products that meet their specific needs from among the myriad of lighting products that become available commercially. Workshop discussions and the discussions evolving from the workshop led the Lighting Africa team to opt for an approach similar to that of th

  14. High temperature solar thermal technology: The North Africa Market

    SciTech Connect (OSTI)

    Not Available

    1990-12-01

    High temperature solar thermal (HTST) technology offers an attractive option for both industrialized and non-industrialized countries to generate electricity and industrial process steam. The purpose of this report is to assess the potential market for solar thermal applications in the North African countries of Algeria, Egypt, Morocco and Tunisia. North Africa was selected because of its outstanding solar resource base and the variety of applications to be found there. Diminishing oil and gas resources, coupled with expanding energy needs, opens a large potential market for the US industry. The US high temperature solar trough industry has little competition globally and could build a large market in these areas. The US is already familiar with certain solar markets in North Africa due to the supplying of substantial quantities of US-manufactured flat plate collectors to this region.

  15. Oil and gas developments in North Africa in 1986

    SciTech Connect (OSTI)

    Michel, R.C.

    1987-10-01

    Licensed oil acreage in the 6 North Africa countries (Algeria, Egypt, Libya, Morocco, Sudan and Tunisia) totaled 1,500,000 km/sup 2/ at the end of 1986, down 290,000 km/sup 2/ from 1985. About 50% of the relinquishments were in Libya. Most oil and gas discoveries were made in Egypt (16 oil and 2 gas). Several oil finds were reported in onshore Libya, and 1 was reported in Algeria in the southeastern Sahara. According to available statistics, development drilling decreased from 1985 levels, except in Tunisia. A 6.3% decline in oil production took place in 1986, falling below the 3 million bbl level (2,912,000 b/d). Only sparse data are released on the gas output in North Africa. 6 figures, 27 tables.

  16. Strategic Soil Management for Rainfed Agriculture in West Africa 

    E-Print Network [OSTI]

    Pitts, Lauren Kyla R.

    2015-08-12

    and Entisols are the most abundant soils in SSA, particularly in West Africa. These soils tend to have low inherent fertility due to natural properties rather than by virtue of nutrient mining or other anthropogenic degradation of fertility. Such natural... properties could include age of soils, weathering, and parent material. The soils of interest in this study are considered Alfisols by U.S. Taxonomy. Major constraints of Alfisols include low water holding capacity, poor nutrient reserves, low cation...

  17. Radio astronomy in Africa: the case of Ghana

    E-Print Network [OSTI]

    Asabere, Bernard Duah; Horellou, Cathy; Winkler, Hartmut; Jarrett, Thomas

    2015-01-01

    South Africa has played a leading role in radio astronomy in Africa with the Hartebeesthoek Radio Astronomy Observatory (HartRAO). It continues to make strides with the current seven-dish MeerKAT precursor array (KAT-7), leading to the 64-dish MeerKAT and the giant Square Kilometer Array (SKA), which will be used for transformational radio astronomy research. Ghana, an African partner to the SKA, has been mentored by South Africa over the past six years and will soon emerge in the field of radio astronomy. The country will soon have a science-quality 32m dish converted from a redundant satellite communication antenna. Initially, it will be fitted with 5 GHz and 6.7 GHz receivers to be followed later by a 1.4 - 1.7 GHz receiver. The telescope is being designed for use as a single dish observatory and for participation in the developing African Very Long Baseline Interferometry (VLBI) Network (AVN) and the European VLBI Network. Ghana is earmarked to host a remote station during a possible SKA Phase 2. The loca...

  18. Women: the key to successful development policies for subsistence agriculture in sub-Saharan Africa 

    E-Print Network [OSTI]

    Ryan, Kathie Elaine

    1971-01-01

    fulfillment of the requirement for the deSree of IIASTER OF SCIERCE December 1971 Major Subject: Economics NOMEN: THE KEY TO SUCCESSFUL DEVELOPMENT POLICIES FOR SUBSISTENCE AGRICULTURE IN SUB-SAHARAN AFRICA A Thesis KATHIE ELAINE RYAN Approved... Africa 10 Western. Afric- Southern Africa 12 Need for Fzpanded Stu. dy Overall Economic Efficiency 13 18 II. THE SITUAT ON IN AGRICULTURE 21 Nature of Subsistence Agriculture Traditional Production Practices 21 23 Traditional Roles 26...

  19. Privatizing Public Health: Social Marketing for HIV Prevention in Tanzania, East Africa

    E-Print Network [OSTI]

    Mahaffey, Erin Elizabeth

    2012-01-01

    Village Vigilante Groups in Tanzania. African Affairs 86:Groups among the Kuria of Tanzania. Africa: Journal of theRevivalism a Threat to Tanzania's Stability. In Questioning

  20. Putting your computer to work to fight against malaria in Africa

    E-Print Network [OSTI]

    2006-01-01

    "While your are sending an email or surfing the web, your computer could be helping to tackle one of Africa's major humanitarian challenges, malaria." (1 page)

  1. Gesture Based Interface for Asynchronous Video Communication for Deaf People in South Africa

    E-Print Network [OSTI]

    Blake, Edwin

    Gesture Based Interface for Asynchronous Video Communication for Deaf People in South Africa people. The gesture interface was implemented on a store and forward video architecture since

  2. No Solution in Sight : the Problem of Protracted Refugee Situations in Africa

    E-Print Network [OSTI]

    Crisp, Jeff

    2003-01-01

    Changing priorities in refugee protection: the Rwandanfrom Tanzania’, New Issues in Refugee Research, No. 53,The Problem of Protracted Refugee Situations in Africa By

  3. Analysis of Long-range Clean Energy Investment Scenarios for Eritrea, East Africa

    E-Print Network [OSTI]

    Van Buskirk, Robert D.

    2004-01-01

    Clean Energy Investment Scenarios for Eritrea, East Africaand renewable energy development scenarios for Eritrea, EastEritrea, East Africa in an effort to facilitate clean energy

  4. Reduced impact logging minimally alters tropical rainforest carbon and energy exchange

    E-Print Network [OSTI]

    2011-01-01

    variations in energy and carbon exchange over forest andon tropical forest carbon, water, and energy exchange. Twothe role of forest in the water and energy cycles and

  5. Tropical Storm Frances Situation Report, September 6, 2004 (10:00 AM EDT)

    SciTech Connect (OSTI)

    none,

    2004-09-06

    The report provides highlights related to impacts of Tropical Storm Frances. Sections on electric information, oil and gas information, storm track, and county outage data are provided.

  6. Tropical Storm Frances Situation Report, September 6, 2004 (10:00 PM EDT)

    SciTech Connect (OSTI)

    none,

    2004-09-06

    The report provides highlights related to impacts of Tropical Storm Frances. Sections on electric information, oil and gas information, storm track, and county outage data are provided.

  7. Tropical Storm Frances Situation Report, September 6, 2004 (4:00 PM EDT)

    SciTech Connect (OSTI)

    none,

    2004-09-06

    The report provides highlights related to impacts of Tropical Storm Frances. Sections on electric information, oil and gas information, storm track, and county outage data are provided.

  8. Tropical Storm Frances Situation Report, September 7, 2004 (10:00 AM EDT)

    SciTech Connect (OSTI)

    none,

    2004-09-07

    The report provides highlights related to impacts of Tropical Storm Frances. Sections on electric information, oil and gas information, storm track, and county outage data are provided.

  9. Tropical Storm Frances Situation Report, September 7, 2004 (4:00 PM EDT)

    SciTech Connect (OSTI)

    none,

    2004-09-07

    The report provides highlights related to impacts of Tropical Storm Frances. Sections on electric information, oil and gas information, storm track, and county outage data are provided.

  10. Characterization of trapped lignin-degrading microbes in tropical forest soil

    E-Print Network [OSTI]

    DeAngelis, K.M.

    2012-01-01

    of trapped lignin-degrading microbes in tropical forest soilunseen majority: soil microbes as drivers of plant diversitya challenge for soil microbes and biofuels engineers alike.

  11. Holocene hydrologic balance of tropical South America from oxygen isotopes of lake sediment opal, Venezuelan Andes

    E-Print Network [OSTI]

    Wolfe, Alexander P.

    Holocene hydrologic balance of tropical South America from oxygen isotopes of lake sediment opal.V. All rights reserved. Keywords: oxygen isotopes; biogenic opal; hydrologic balance; Holocene; Venezuela

  12. The Origin and Early Cultivation of Sorghums in Africa

    E-Print Network [OSTI]

    Mann, J.A.; Kimber, C.T.; Miller, F.R.

    1983-01-01

    climatic change may have been desertification caused by over gra~ing. As the expansion and contraction of the savanna and semi-desert steppe regions north of the equator took place, the most advantageous habitats would have also moved north and south...-Bantu) from the area of eastern Nigeria and northern Cameroon through the forests to Katanga, and later on to East Africa. The proto-Bantu were a Negroid stock closely related to the Niger-Congo peopl (if not actually of that stock). While originally...

  13. Constraints on implementing environmental impact assessments in Africa

    SciTech Connect (OSTI)

    Kakonge, J.O. (UNDP, Maseru (South Africa)); Imevbore, A.M. (Univ. of Ile-ife (Nigeria))

    1993-09-01

    Africa can benefit from the experience of other areas in implementing environmental impact assessments (EIAs), but African countries face a greater challenge in achieving this goal due to such problems as inadequate environmental legislation; inappropriate institutional framework for coordination and monitoring government activities; a shortage of qualified manpower, inadequate financial resources; absence of public awareness of the need for EIAs; and lack of suitable screening procedures to determine which development projects require an EIA. Despite these difficulties, African countries can realize short- and long-term benefits from the incorporation of the EIA into their decision-making process.

  14. Solar Energy for Africa SEFA | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page| Open Energy Information Serbia-Enhancing Capacity forSilicium deEnergy InformationDepot IncHomeSystems IncAfrica

  15. Africa Adaptation Programme: Capacity Building Experiences-Improving

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LIST OFAMERICA'SHeavyAgencyTendoMassachusetts: EnergyRenewablesAfrica - CCSAccess,

  16. Africa Climate Policy Centre (ACPC) | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LIST OFAMERICA'SHeavyAgencyTendoMassachusetts: EnergyRenewablesAfrica -

  17. Africa Infrastructure Country Diagnostic Documents: ARCGIS Shape File, all

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LIST OFAMERICA'SHeavyAgencyTendoMassachusetts: EnergyRenewablesAfrica -Countries |

  18. Africa's Infrastructure: A Time for Transformation | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LIST OFAMERICA'SHeavyAgencyTendoMassachusetts: EnergyRenewablesAfrica -Countries

  19. United Nations Economic Commission for Africa | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop IncIowa (Utility Company) JumpGTZ Climate OrientedUnionUnitedKingdom:Africa Jump

  20. U.S.-Africa Energy Ministerial | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative FuelsofProgram: Report1538-1950 Timeline ofTurkeyProgram | DepartmentU.S. andAfrica

  1. The SME boom in rural South Africa links to electricity and telephony

    E-Print Network [OSTI]

    -) ) The SME boom in rural South Africa links to electricity and telephony Paper to be presented in rural South Africa, with a special focus on electricity and telephone access. The micro data we analyse of the historically disadvantaged "deep rural" areas. In parallel to a doubled electricity access, we find a 14-fold

  2. The Red-billed Quelea in southern Africa: primary moult and the rainfall migration model

    E-Print Network [OSTI]

    de Villiers, Marienne

    Chapter 4 The Red-billed Quelea in southern Africa: primary moult and the rainfall migration model #12;74 #12;75 The Red-billed Quelea in southern Africa: primary moult and the rainfall migration model Abstract The onset and duration of primary moult were investigated for Red-billed Quelea Quelea quelea

  3. Evaluating the Interstate Highway Transportation System in West Africa: Recommendations for an Integrated Highway Network

    E-Print Network [OSTI]

    Nyang, Lamin Bumi

    2010-12-17

    of travel along West African highways. Research indicates that traveling on West Africa’s highways can be onerous. In 2003, the African Development Bank admitted that what should be a 3-day trip from Bangua, Central African Republic, to Douala, Cameroon...

  4. New species of Mycosphaerella occurring on Eucalyptus leaves in Indonesia and Africa

    E-Print Network [OSTI]

    781 New species of Mycosphaerella occurring on Eucalyptus leaves in Indonesia and Africa P.W. Crous and M.J. Wingfield Ahstract:Although Africa and Indonesia have not been particularly well surveyed Eucalyptus leaves from Indonesia. The former species is of particular interest, because its anamorph

  5. NORWAY-SOUTH AFRICA RESEARCH PROJECT TPCP/CTHB STUDENTS VISIT NORWAY

    E-Print Network [OSTI]

    NORWAY-SOUTH AFRICA RESEARCH PROJECT TPCP/CTHB STUDENTS VISIT NORWAY Recently two masters' students of visiting Norway to work with the Norwegian Forestry Research Institute (Skogforsk) in Ås. This opportunity arose from a bilateral agreement between the Governments of Norway and South Africa. For Gilbert

  6. "Some, for all, forever" Managing Water for Sustainable Development in South Africa

    E-Print Network [OSTI]

    Mauzerall, Denise

    "Some, for all, forever" Managing Water for Sustainable Development in South Africa Priscilla" Integrated Water Resources Management in South Africa" a. Natural Conditions and Hydrology b. Pollution c. Population and a Legacy of Inequality d. New Legislation: The National Water Act of 1998 and the Water

  7. A new species of CrypllOnectria from South Africa and Australia, pathogenic to Eucalyptus

    E-Print Network [OSTI]

    A new species of CrypllOnectria from South Africa and Australia, pathogenic to Eucalyptus Marieka- genic to Eucalyptus. - Sydowia 54(1): 98-117. Endothia gyrosa causes cankers on several hardwood genera in North America, but occurs only on Eucalyptus spp. in South Africa and Australia. Previously, Australian

  8. Modeling blue and green water availability in Africa Jurgen Schuol,1,2

    E-Print Network [OSTI]

    Modeling blue and green water availability in Africa Ju¨rgen Schuol,1,2 Karim C. Abbaspour,1 Hong a semidistributed hydrological model SWAT (Soil and Water Assessment Tool), the freshwater components blue water. J. B. Zehnder (2008), Modeling blue and green water availability in Africa, Water Resour. Res., 44

  9. The United Nations High Commissioner for Refugees (UNHCR) in South Africa provides a limited number of

    E-Print Network [OSTI]

    Wagner, Stephan

    The United Nations High Commissioner for Refugees (UNHCR) in South Africa provides a limited number of scholarships for refugees at the tertiary level in Government universities, technikons and colleges in South Africa. The scholarship originated from the Albert Einstein German Academic Refugee Initiative Fund (DAFI

  10. Sustainable Waste Management in Africa Accra, Ghana, May 26th-30th, 2014

    E-Print Network [OSTI]

    Columbia University

    Sustainable Waste Management in Africa Accra, Ghana, May 26th-30th, 2014 The Earth Engineering & Waste Management (ISWM) of Ghana are pleased to announce that an interdisciplinary course and workshop course will focus on state of the art technologies for advancing sustainable waste management in Africa

  11. Tropospheric ozone climatology over Irene, South Africa, from 1990 to 1994 and 1998 to 2002

    E-Print Network [OSTI]

    Thompson, Anne

    Tropospheric ozone climatology over Irene, South Africa, from 1990 to 1994 and 1998 to 2002 R. D the characteristic Southern Hemisphere springtime tropospheric ozone maximum, but its seasonal features are modulated anticyclonic gyre over southern Africa permit the buildup of relatively high springtime midtropospheric ozone

  12. Climate change and human health: Spatial modeling of water availability, malnutrition, and livelihoods in Mali, Africa

    E-Print Network [OSTI]

    Lopez-Carr, David

    , and livelihoods in Mali, Africa Marta M. Jankowskaa,*,1 , David Lopez-Carrb,1 , Chris Funkc , Gregory J. Husakd Malnutrition Mali-Africa Livelihoods a b s t r a c t This study develops a novel approach for projecting climate trends in the Sahel in relation to shifting livelihood zones and health outcomes. Focusing on Mali

  13. Health and Disease in East Africa Course Syllabus; Spring 2011 Interdisciplinary Perspectives on

    E-Print Network [OSTI]

    Sheridan, Jennifer

    Health and Disease in East Africa Course Syllabus; Spring 2011 1 Interdisciplinary Perspectives on Global Health and Disease: Uganda PHS 644: Section 30 Course Syllabus ­ Spring 2012 Wednesdays 5 Prerequisites: Graduate and health professional students who plan field study in Uganda and/or East Africa

  14. 15 Energy for development: solar home systemsin Africa and global carbon emissions

    E-Print Network [OSTI]

    Kammen, Daniel M.

    15 Energy for development: solar home systemsin Africa and global carbon emissions RICHARD D. DUKEl, private and non- governmental organization (NGG) projects have already targeted SHS in Africa. The World;market transformation;photovoltaics; solar home systems; buydown ABST RACT A growingnumberofrural

  15. Renewable Energy Industry in South Africa: Opportunities for Partnership and Collaboration

    E-Print Network [OSTI]

    Fernandez, Eduardo

    Renewable Energy Industry in South Africa: Opportunities for Partnership and Collaboration Renewable Energy in South Africa September 23, 2013 11:30 a.m. ­ 12:30 p.m, Engineering East 303C@fau.edu FAU's Division of Research and Southeast National Marine Renewable Energy Center invite you

  16. THE MURCHISON GREENSTONE BELT, SOUTH AFRICA: ACCRETED1 SLIVERS WITH CONTRASTING METAMORPHIC CONDITIONS2

    E-Print Network [OSTI]

    Boyer, Edmond

    1 THE MURCHISON GREENSTONE BELT, SOUTH AFRICA: ACCRETED1 SLIVERS WITH CONTRASTING METAMORPHIC.09-2.92 Ga Murchison30 Greenstone Belt (MGB), located in South Africa's Kaapvaal Craton, and discusses deformation patterns observed throughout the belt. These patterns are explained by a N-S compressional36

  17. Energy System Development inAfrica: The case of grid and off-grid power inKenya

    E-Print Network [OSTI]

    de Weck, Olivier L.

    Energy System Development inAfrica: The case of grid and off-grid power inKenya By Katherine Deaton Development inAfrica: The case of grid and off-grid power inKenya Energy System Development inAfrica: The case of grid and off-grid power in Kenya by Katherine Steel Submitted to the Engineering Systems Division

  18. A jet streak circulation associated with a low-latitude jet in the Southern Hemisphere over Africa.

    E-Print Network [OSTI]

    Nicholson, Sharon E.

    A jet streak circulation associated with a low-latitude jet in the Southern Hemisphere over Africa 2007 #12;2 Abstract In the Southern Hemisphere over Africa a mid-tropospheric easterly jet stream exists during some months that is analogous to the African Easterly Jet over West Africa. In this note

  19. Towards evaluating the map literacy of planners in 2D maps and 3D models in South Africa

    E-Print Network [OSTI]

    Çöltekin, Arzu

    1 Towards evaluating the map literacy of planners in 2D maps and 3D models in South Africa, Department of Geography, Geoinformatics and Metereology, University of Pretoria, Pretoria, South Africa 2 GIScience Center, University of Zurich, Zurich, Switzerland. Abstract South Africa is faced

  20. Aurecon South Africa Aurecon provides world class technical expertise and innovative solutions on projects in more than 80

    E-Print Network [OSTI]

    Wagner, Stephan

    Aurecon South Africa Aurecon provides world class technical expertise and innovative solutions on projects in more than 80 countries across Africa, Asia Pacific and the Middle East. As a global multi to make a difference. We have offices in all major cities throughout South Africa. How to Apply

  1. STUDIES IN MYCOLOGY 55: 1333. 2006. How many species of fungi are there at the tip of Africa?

    E-Print Network [OSTI]

    13 STUDIES IN MYCOLOGY 55: 13­33. 2006. How many species of fungi are there at the tip of Africa, Pretoria, South Africa; 3 Biosystematics Division, ARC Plant Protection Research Institute, P. Bag X134, Queenswood, Pretoria 0121, South Africa; 4 ARC Plant Protection Research Institute, P. Bag X5017

  2. 11.4 CLIP: CLIMATE-LAND INTERACTION PROJECT--INVESTIGATING HUMAN-CLIMATE INTERACTIONS IN EAST AFRICA

    E-Print Network [OSTI]

    AFRICA Brent M. Lofgren* Great Lakes Environmental Research Laboratory, Ann Arbor, Michigan Nathan J Africa is a region with an economy that is rapidly developing in a variety of sectors, an ex- panding to have significant effects on climate in other parts of Africa, leading to feedback between vegetation

  3. PhD position In situ assessment of greenhouse gases and ammonia emissions from livestock systems in East Africa

    E-Print Network [OSTI]

    Anderson, Charles W.

    in East Africa The International Livestock Research Institute (ILRI, www.ilri.org) in cooperation on greenhouse gases (GHG) and ammonia emissions from different livestock systems in East Africa. The candidate Africa by means of a combination of chamber measurements, eddy covariance techniques and other

  4. Amphibia-Reptilia 34 (2013): 363-387 Additions to the lizard diversity of the Horn of Africa

    E-Print Network [OSTI]

    2013-01-01

    Amphibia-Reptilia 34 (2013): 363-387 Additions to the lizard diversity of the Horn of Africa: Two Böhme2 Abstract. The Horn of Africa is a center of diversity for African agamid lizards. Among the nine species of Agama occurring in the Horn of Africa, Agama spinosa is the most widely distributed. The A

  5. A Model Evaluation Data Set for the Tropical ARM Sites

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    Jakob, Christian

    2008-01-15

    This data set has been derived from various ARM and external data sources with the main aim of providing modelers easy access to quality controlled data for model evaluation. The data set contains highly aggregated (in time) data from a number of sources at the tropical ARM sites at Manus and Nauru. It spans the years of 1999 and 2000. The data set contains information on downward surface radiation; surface meteorology, including precipitation; atmospheric water vapor and cloud liquid water content; hydrometeor cover as a function of height; and cloud cover, cloud optical thickness and cloud top pressure information provided by the International Satellite Cloud Climatology Project (ISCCP).

  6. Differences Between Tropical and Trade-Wind Shallow Cumuli

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would like submit theCovalent BondingMeetingDifferences Between Tropical and Trade-Wind Shallow

  7. A Model Evaluation Data Set for the Tropical ARM Sites

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    Jakob, Christian

    This data set has been derived from various ARM and external data sources with the main aim of providing modelers easy access to quality controlled data for model evaluation. The data set contains highly aggregated (in time) data from a number of sources at the tropical ARM sites at Manus and Nauru. It spans the years of 1999 and 2000. The data set contains information on downward surface radiation; surface meteorology, including precipitation; atmospheric water vapor and cloud liquid water content; hydrometeor cover as a function of height; and cloud cover, cloud optical thickness and cloud top pressure information provided by the International Satellite Cloud Climatology Project (ISCCP).

  8. Tropical Cyclone Wind Retrievals from the Advanced Microwave Sounding Unit: Application to Surface Wind Analysis

    E-Print Network [OSTI]

    Collett Jr., Jeffrey L.

    Tropical Cyclone Wind Retrievals from the Advanced Microwave Sounding Unit: Application to Surface Wind Analysis KOTARO BESSHO Japan Meteorological Agency/Meteorological Research Institute, Tsukuba City winds at 850 hPa from tropical cyclones retrieved using the nonlinear balance equation, where the mass

  9. Estimation of tropical forest structural characteristics using large-footprint lidar

    E-Print Network [OSTI]

    Weishampel, John F.

    Estimation of tropical forest structural characteristics using large-footprint lidar Jason B in identifying the amount of carbon in terrestrial vegetation pools and is central to global carbon cycle studies. Although current remote sensing techniques recover such tropical forest structure poorly, new large-footprint

  10. Geographical distribution and interseasonal variability of tropical deep convection: UARS MLS observations and analyses

    E-Print Network [OSTI]

    Wang, Bin

    of water vapor maxima near the bottom of TTL are located directly above the deep convection centersGeographical distribution and interseasonal variability of tropical deep convection: UARS MLS December 2003; published 13 February 2004. [1] Tropical deep convection and its dynamical effect

  11. Energy dynamics and modeled evapotranspiration from a wet tropical forest in Costa Rica

    E-Print Network [OSTI]

    Energy dynamics and modeled evapotranspiration from a wet tropical forest in Costa Rica H). #12;1. Introduction The energy balance of tropical forests is complex due to feedback mechanisms among.W. Loeschera, *, H.L. Gholza,b , J.M. Jacobsc , S.F. Oberbauerd,e a School of Forest Resources and Conservation

  12. 130 Florida Entomologist 93(1) March 2010 BIOLOGICAL CONTROL OF TROPICAL SODA APPLE

    E-Print Network [OSTI]

    Ma, Lena

    130 Florida Entomologist 93(1) March 2010 BIOLOGICAL CONTROL OF TROPICAL SODA APPLE (SOLANACEAE for natural ene- mies of the invasive plant tropical soda apple, Solanum viarum Dunal (Solanaceae) were con apple in Brazil and Paraguay (Medal et al. 1996). A biological control program was initiated

  13. A Climatology of Tropical Anvil and Its Relationship to the Large-Scale Circulation 

    E-Print Network [OSTI]

    Li, Wei

    2011-02-22

    of anvil formation, and to provide a more realistic assessment of the radiative impact of tropical anvil on the large-scale circulation. Based on 10 years (1998-2007) of observations, anvil observed by the Tropical Rainfall Measuring Mission (TRMM...

  14. Stem respiration in tropical forests along an elevation gradient in the Amazon and Andes

    E-Print Network [OSTI]

    Malhi, Yadvinder

    Stem respiration in tropical forests along an elevation gradient in the Amazon and Andes A M A N D metabolism, resulting in the release of carbon dioxide as a by-product. Little is known of how autotrophic respiration components vary across environmental gradients, particularly in tropical ecosystems. Here, we

  15. Effects of ozone cooling in the tropical lower stratosphere and upper troposphere

    E-Print Network [OSTI]

    Effects of ozone cooling in the tropical lower stratosphere and upper troposphere Piers M. Forster lower stratosphere and upper troposphere and elucidate the key role of ozone changes in driving of tropical ozone decreases at 70 hPa and lower pressures can lead to significant cooling not only

  16. Intermediate Zonal Jets in the Tropical Pacific Ocean Observed by Argo Floats* SOPHIE CRAVATTE

    E-Print Network [OSTI]

    Boyer, Edmond

    Intermediate Zonal Jets in the Tropical Pacific Ocean Observed by Argo Floats* SOPHIE CRAVATTE´veloppement, LEGOS, Toulouse, France WILLIAM S. KESSLER National Oceanic and Atmospheric Administration/Pacific Argo float data in the tropical Pacific Ocean during January 2003­August 2011 are analyzed to obtain

  17. Tropical Moored Buoy Implementation Panel (TIP) Report Michael J. McPhaden, TIP Chairman

    E-Print Network [OSTI]

    Tropical Moored Buoy Implementation Panel (TIP) Report Michael J. McPhaden, TIP Chairman NOAA Michael McPhaden, chairman of the Tropical Moored Buoy Implementation Panel (TIP), briefed the panel on three topics: 1) the current successes of the TAO/TRITON partnership in maintaining the moored buoy

  18. U.S Markets for Certified and Non-Certified Hardwood Tropical Forest Products

    E-Print Network [OSTI]

    in the fact that tropical forests have a longer growing period, hence encouraging the paper industry to use tropical hardwood pulp for paper production (U.S. and International Institutions 1983). In 2000, the United Agricultural Center Baton Rouge, Louisiana Louisiana Forest Products Development Center Working Paper #76

  19. United States and Caribbean tropical cyclone activity related to the solar cycle

    E-Print Network [OSTI]

    Elsner, James B.

    United States and Caribbean tropical cyclone activity related to the solar cycle J. B. Elsner1 related to solar activity. The relationship results from fewer intense tropical cyclones over the Caribbean and Gulf of Mexico when sunspot numbers are high. The finding is in accord with the heat- engine

  20. Auritella foveata, a new species of Inocybaceae (Agaricales) from tropical India

    E-Print Network [OSTI]

    Matheny, P. Brandon

    Auritella foveata, a new species of Inocybaceae (Agaricales) from tropical India P. Brandon Matheny & Matheny is described as new from mixed evergreen forests in tropical India. The species is distinctive due, systematics. Introduction India is exceedingly rich in fungal diversity (Manoharachary et al. 2005). Indeed

  1. THE EXTENT AND CAUSES OF ILLEGAL LOGGING: AN ANALYSIS OF A MAJOR CAUSE OF TROPICAL

    E-Print Network [OSTI]

    THE EXTENT AND CAUSES OF ILLEGAL LOGGING: AN ANALYSIS OF A MAJOR CAUSE OF TROPICAL DEFORESTATION;2 THE EXTENT AND CAUSES OF ILLEGAL LOGGING: AN ANALYSIS OF A MAJOR CAUSE OF TROPICAL DEFORESTATION IN INDONESIA (CIFOR). ISSN 0967-8875 #12;3 Abstract: This paper considers the scale and underlying causes of recent

  2. Cloud properties and associated radiative heating rates in the tropical western Pacific

    E-Print Network [OSTI]

    Cloud properties and associated radiative heating rates in the tropical western Pacific James H radiative fluxes and heating rates. Maxima in cloud occurrence are found in the boundary layer and the upper radiative heating rates in the tropical western Pacific, J. Geophys. Res., 112, D05201, doi:10.1029/2006JD

  3. Tropical ozone as an indicator of deep convection Ian Folkins and Christopher Braun

    E-Print Network [OSTI]

    Folkins, Ian

    Tropical ozone as an indicator of deep convection Ian Folkins and Christopher Braun Department] The climatological ozone profile in the tropics is shaped like an ``S,'' with a minimum at the surface, a maximum. These features can be reproduced by a very simple model whose only free parameter is the mean ozone mixing ratio

  4. Shipboard Measurements and Estimations of AirSea Fluxes in the Western Tropical Pacific Ocean

    E-Print Network [OSTI]

    California at Irvine, University of

    Ship­board Measurements and Estimations of Air­Sea Fluxes in the Western Tropical Pacific Ocean E dur­ ing the Tropical Ocean Global Atmosphere (TOGA) Coupled Ocean and Atmospheric Response of the surface­layer turbulence properties are compared with those from previous land and ocean results. Momentum

  5. Tropical Cyclogenesis Associated with Rossby Wave Energy Dispersion of a Preexisting Typhoon. Part II: Numerical Simulations*

    E-Print Network [OSTI]

    Wang, Bin

    Tropical Cyclogenesis Associated with Rossby Wave Energy Dispersion of a Preexisting Typhoon. Part (1987) and Fiorino and Els- berry (1989) showed that a cyclonic vortex experiences Rossby wave energy) ABSTRACT The cyclogenesis events associated with the tropical cyclone (TC) energy dispersion are simulated

  6. SCALAR WIND SPEED AND DIRECTION TROPICAL CYCLONE RETRIEVALS FOR CONICAL SCANNING SCATTEROMETERS

    E-Print Network [OSTI]

    Hennon, Christopher C.

    SCALAR WIND SPEED AND DIRECTION TROPICAL CYCLONE RETRIEVALS FOR CONICAL SCANNING SCATTEROMETERS--Scatterometer measurements of ocean vector winds (OVW) are significantly degraded in the presence of the precipitation, especially in tropical cyclones. This paper presents a new ocean hurricane/typhoon wind vector retrieval

  7. Mesoscale Simulation of Tropical Cyclones in the South Pacific: Climatology and Interannual Variability

    E-Print Network [OSTI]

    Mesoscale Simulation of Tropical Cyclones in the South Pacific: Climatology and Interannual is shown to reproduce a wide range of mesoscale convective systems. Tropical cyclones grow from the most related to mesoscale in- teractions, which also affect TC tracks and the resulting occurrence. 1

  8. Very high resolution precipitation climatologies from the Tropical Rainfall Measuring Mission precipitation radar

    E-Print Network [OSTI]

    Nesbitt, Steve

    Very high resolution precipitation climatologies from the Tropical Rainfall Measuring Mission precipitation radar Stephen W. Nesbitt1 and Alison M. Anders2 Received 4 March 2009; revised 6 July 2009 of topography and precipitation, a tropics-wide (±36° latitude) high resolution (0.1°) ten year (1998

  9. Proper orthogonal decomposition approach and error estimation of mixed finite element methods for the tropical Pacific Ocean

    E-Print Network [OSTI]

    Navon, Michael

    for the tropical Pacific Ocean reduced gravity model Zhendong Luo a , Jiang Zhu b , Ruiwen Wang b , I.M. Navon c Available online 8 May 2007 Abstract In this paper, the tropical Pacific Ocean reduced gravity model and the insufficient knowledge of air­sea exchange processes. The tropical Pacific Ocean reduced gravity model

  10. Utilization of geothermal heat in tropical fruit-drying process

    SciTech Connect (OSTI)

    Chen, B.H.; Lopez, L.P.; King, R.; Fujii, J.; Tanaka, M.

    1982-10-01

    The power plant utilizes only the steam portion of the HGP-A well production. There are approximately 50,000 pounds per hour of 360/sup 0/F water produced (approximately 10 million Btu per hour) and the water is currently not used and is considered a waste. This tremendous resource could very well be used in applications such as food processing, food dehydration and other industrial processing that requires low-grade heat. One of the applications is examined, namely the drying of tropical fruits particularly the papaya. The papaya was chosen for the obvious reason that it is the biggest crop of all fruits produced on the Big Island. A conceptual design of a pilot plant facility capable of processing 1000 pounds of raw papaya per day is included. This facility is designed to provide a geothermally heated dryer to dehydrate papayas or other tropical fruits available on an experimental basis to obtain data such as drying time, optimum drying temperature, etc.

  11. Ambient aromatic hydrocarbon measurements at Welgegund, South Africa

    SciTech Connect (OSTI)

    Jaars, K.; Beukes, J. P.; van Zyl, P. G.; Venter, A. D.; Josipovic, M.; Pienaar, J. J.; Vakkari, Ville; Aaltonen, H.; Laakso, H.; Kulmala, M.; Tiitta, P.; Guenther, Alex B.; Hellen, H.; Laakso, L.; Hakola, H.

    2014-07-11

    Aromatic hydrocarbons are associated with direct adverse human health effects and can have negative impacts on ecosystems due to their toxicity, as well as indirect negative effects through the formation of tropospheric ozone and secondary organic aerosol that affect human health, crop production and regional climate. Measurements were conducted at the Welgegund measurement station (South Africa) that is considered to be a regionally representative background site. However, the site is occasionally impacted by plumes from major anthropogenic source regions in the interior of South Africa, which include the western Bushveld Igneous Complex (e.g. platinum, base metal and ferrochrome smelters), the eastern Bushveld Igneous Complex (platinum and ferrochrome smelters), the Johannesburg-Pretoria metropolitan conurbation (>10 million people), the Vaal Triangle (e.g. petrochemical and industries), the Mpumalanga Highveld (e.g. coal-fired power plants and petrochemical industry) and also a region of anti-cyclonic recirculation of air mass over the interior of South Africa. The aromatic hydrocarbon measurements were conducted with an automated sampler on Tenax-TA and Carbopack-B adsorbent tubes with heated inlet for one year. Samples were collected twice a week for two hours during daytime and two hours 1 during night-time. A thermal desorption unit, connected to a gas chromatograph and a mass 2 selective detector was used for sample preparation and analysis. Results indicated that the 3 monthly median total aromatic hydrocarbon concentrations ranged between 0.01 to 3.1 ppb. 4 Benzene levels did not exceed local air quality standards. Toluene was the most abundant 5 species, with an annual median concentration of 0.63 ppb. No statistically significant 6 differences in the concentrations measured during daytime and night-time were found and no distinct seasonal patterns were observed. Air mass back trajectory analysis proved that the lack of seasonal cycles could be attributed to patterns determining the origin of the air masses sampled. Aromatic hydrocarbon concentrations were in general significantly higher in air masses that passed over anthropocentrically impacted regions. Interspecies correlations and ratios gave some indications of the possible sources for the different aromatic hydrocarbons in the source regions defined in the paper. The highest contribution of aromatic hydrocarbon concentrations to ozone formation potential was also observed in plumes passing over anthropocentrically impacted regions.

  12. Oil and gas developments in North Africa in 1985

    SciTech Connect (OSTI)

    Michel, R.C.

    1986-10-01

    Petroleum rights in the 6 North African countries (Algeria, Egypt, Libya, Morocco, Sudan, and Tunisia) covered in this paper were 1,839,817 km/sup 2/ at the end of 1985, a decrease of 3% from the 1,896,446 km/sup 2/ held at the end of 1984. This decrease mainly is due to significant relinquishments made in Algeria, Egypt, and Tunisia. Morocco, however, had an increase of 18,087 km/sup 2/. Oil discoveries were reported in Algeria (possibly 5), Libya (at least 2), and Egypt (16). Only 1 gas find was made (in Morocco). According to sparse information, development drilling may have decreased markedly during 1985. Oil and condensate production increased by 3.1% to approximately 3,054,000 b/d compared to about 2,963,400 b/d in 1984. No statistics are currently available on gas production in North Africa. 8 figures, 27 tables.

  13. Occurrence of aflatoxins in human foodstuffs in South Africa

    SciTech Connect (OSTI)

    Loetter, L.H.; Kroehm, H.J.

    1988-02-01

    Aflatoxins are toxic metabolites of Aspergillus spp and have been reported as contaminants in a number of foodstuffs, namely corn, rice, peanuts, and cereals. In the Republic of South Africa, aflatoxin levels in human foodstuffs are limited to a maximum of 10 ..mu..g/kg for the total and 5 ..mu..g/kg for aflatoxin B/sub 1/. During 1985 and 1986, samples of sorghum beer, sorghum cereal, peanuts, peanut butter and maize meal were purchased from supermarkets in Johannesburg and analyzed for aflatoxins. A total of 414 samples were analyzed during the survey. In 1985, roughly a third of the samples were contaminated with aflatoxins, with no levels in excess of the legal limit. In 1986 the percentage of contaminated samples rose significantly, but the levels of contamination remained low, with only one sample exceeding the legal maximum.

  14. Latest Jurassic-early Cretaceous regressive facies, northeast Africa craton

    SciTech Connect (OSTI)

    van Houten, F.B.

    1980-06-01

    Nonmarine to paralic detrital deposits accumulated in six large basins between Algeria and the Arabo-Nubian shield during major regression in latest Jurassic and Early Cretaceous time. The Ghadames Sirte (north-central Libya), and Northern (Egypt) basins lay along the cratonic margin of northeastern Africa. The Murzuk, Kufra, and Southern (Egypt) basins lay in the south within the craton. Data for reconstructing distribution, facies, and thickness of relevant sequences are adequate for the three northern basins only. High detrital influx near the end of Jurassic time and in mid-Cretaceous time produced regressive nubian facies composed largely of low-sinuosity stream and fahdelta deposits. In the west and southwest the Ghadames, Murzuk, and Kufra basins were filled with a few hundred meters of detritus after long-continued earlier Mesozoic aggradation. In northern Egypt the regressive sequence succeeded earlier Mesozoic marine sedimentation; in the Sirte and Southern basins correlative deposits accumulated on Precambrian and Variscan terranes after earlier Mesozoic uplift and erosion. Waning of detrital influx into southern Tunisia and adjacent Libya in the west and into Israel in the east initiated an Albian to early Cenomanian transgression of Tethys. By late Cenomanian time it had flooded the entire cratonic margin, and spread southward into the Murzuk and Southern basins, as well as onto the Arabo-Nubian shield. Latest Jurassic-earliest Cretaceous, mid-Cretaceous, and Late Cretaceous transgressions across northeastern Africa recorded in these sequences may reflect worldwide eustatic sea-level rises. In contrast, renewed large supply of detritus during each regression and a comparable subsidence history of intracratonic and marginal basins imply regional tectonic control. 6 figures.

  15. A census of precipitation features in the tropics using TRMM: radar, ice scattering, and lightning observations 

    E-Print Network [OSTI]

    Nesbitt, Stephen William

    1999-01-01

    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73 39 LIS lightning flashes within 8 km of TPFs . . . 76 40 Flashes per km' TPF area vs. volumetric rainfall in TPFs in Africa, S. America, E. Pacific, and W. Pacific . . . . . . . . . . . . . . . . . . . . . . . . 77 41 Map of all TPFs over... Africa 42 Map of all TPFs with a pixel of PCT & 250 K over Africa . . . . . 43 Map of all TPFs over S. America. . 87 . . . . 88 89 44 Map of all TPFs with a pixel of PCT & 250 K over S. America . . . . . . . . 90 45 Map of all TPFs over the E...

  16. Management of Philippine tropical forests: Implications to global warming

    SciTech Connect (OSTI)

    Lasco, R.D.

    1997-12-31

    The first part of the paper presents the massive changes in tropical land management in the Philippines as a result of a {open_quotes}paradigm shift{close_quotes} in forestry. The second part of the paper analyzes the impacts of the above management strategies on global warming, in general, preserved forests are neither sinks not sources of greenhouse gasses (GHG). Reforestation activities are primarily net sinks of carbon specially the use of fast growing reforestation species. Estimates are given for the carbon-sequestering ability of some commonly used species. The last part of the paper policy recommendations and possible courses of action by the government to maximize the role of forest lands in the mitigation of global warming. Private sector initiatives are also explored.

  17. Can the vertical motions in the eyewall of tropical cyclones support persistent UAV flight?

    E-Print Network [OSTI]

    Poh, Chung-Kiak

    2014-01-01

    Powered flights in the form of manned or unmanned aerial vehicles (UAVs) have been flying into tropical cyclones to obtain vital atmospheric measurements with flight duration typically lasting between 12 and 36 hours. Convective vertical motion properties of tropical cyclones have previously been studied. This work investigates the possibility to achieve persistent flight by harnessing the generally pervasive updrafts in the eyewall of tropical cyclones. A sailplane UAV capable of vertical take-off and landing (VTOL) is proposed and its flight characteristics simulated. Results suggest that the concept of persistent flight within the eyewall is promising and may be extendable to the rainband regions.

  18. U.S.-Africa Energy Ministerial Co-Chairs' Summary from Energy...

    Office of Environmental Management (EM)

    sectoral policies and strategies. He emphasized the need to scale up investment in the production and consumption of energy services if Africa is meant to be the next global...

  19. Unlocking Africa's poverty trap : holistic approach to BOP investment in agribusiness

    E-Print Network [OSTI]

    Suzuki, Elli

    2013-01-01

    This paper identifies subsistence farming as a significant opportunity for poverty reduction and economic development in sub-Saharan Africa. By taking a holistic, standardized, and bundled approach, this paper proposes an ...

  20. Solar capabilities : promoting, technological learning in South Africa's photovoltaic supply industry

    E-Print Network [OSTI]

    Wright, Janelle N., 1978-

    2003-01-01

    I explore the mechanisms through which technological capabilities have been built in the market for photovoltaic (PV) module and balance of system (BOS) manufacture in South Africa. Drawing on the literature on technology ...

  1. Characterization of novel rice germplasm from West Africa and genetic marker associations with rice cooking quality 

    E-Print Network [OSTI]

    Traore, Karim

    2006-10-30

    Genetic resource enhancement is the foundation of any good breeding program. Landraces from West Africa, interspecifics between Oryza sativa and Oryza glaberrima and improved lines from the West African Rice Development Association and other...

  2. Surficial sediments of the continental rise and slope, Niger Delta, West Africa: properties and geology 

    E-Print Network [OSTI]

    Kobilka, David William

    1999-01-01

    The submarine portions of the Niger Delta, West Africa are undergoing active gravity tectonic deformation due to thick deposits of ductile shale overlain by paralic sands. Because the region is rich in hydrocarbon reserves, the subdermal Niger Delta...

  3. Policy Responses to Human Trafficking in Southern Africa: Domesticating International Norms

    E-Print Network [OSTI]

    Britton, Hannah E.; Dean, Laura A.

    2014-01-01

    Human trafficking is increasingly recognized as an outcome of economic insecurity, gender inequality, and conflict, all significant factors in the region of southern Africa. This paper examines policy responses to human trafficking in southern...

  4. A planning paradigm for electrification in Sub-Saharan Africa : a case study of Tanzania

    E-Print Network [OSTI]

    Dimson, Sarah

    2014-01-01

    In Sub-Saharan Africa, a lack of clean electricity generation sources, poor electricity access and low levels of electricity consumption are profoundly stifling sustainable development. This thesis presents a specialized ...

  5. Cell-Phones and Spears: Indigenous Cultural Transition Within the Maasai of East Africa

    E-Print Network [OSTI]

    Summitt, April R.

    2002-03-01

    The Maasai of East Africa are excellent examples of Indigenous culture in transition. In spite of pressure from the outside, Maasai currently maintain their cultural identity to choose which parts of western culture and ...

  6. Mediterraneità and modernità : architecture and culture during the period of Italian colonization of North Africa

    E-Print Network [OSTI]

    McLaren, Brian L. (Brian Lloyd), 1958-

    2001-01-01

    This dissertation examines the intersection of the modern and the colonial in architecture and culture during the period of Italian colonization of North Africa from 1911 to 1943. Rather than see the colonies as merely a ...

  7. International survey of options to fund regional science and technology in Africa

    E-Print Network [OSTI]

    International survey of options to fund regional science and technology in Africa December 2006 nations making real contributions to the implementation of the CPA. Whilst it is suggested that in time

  8. Tackling Africa's chronic disease burden: from the local to the global

    E-Print Network [OSTI]

    de-Graft Aikins, Ama; Unwin, Nigel; Agyemang, Charles; Allotey, Pascale; Campbell, Catherine; Arhinful, Daniel

    2010-04-19

    Abstract Africa faces a double burden of infectious and chronic diseases. While infectious diseases still account for at least 69% of deaths on the continent, age specific mortality rates from chronic diseases as a whole are actually higher in sub...

  9. Comrades still struggling: class, nationalism and the Tripartite Alliance in post-apartheid South Africa

    E-Print Network [OSTI]

    Beresford, Alexander Roy

    2011-07-04

    This thesis examines the trajectories of class politics in post-apartheid South Africa. It investigates whether we can witness South African politics entering into a post-nationalist era characterised by the increasing salience of class struggles...

  10. Rural development in practice? The experience of the ‡Khomani bushmen in the Northern Cape, South Africa 

    E-Print Network [OSTI]

    Grant, Julie

    2012-06-29

    This thesis analyses the dynamics, complexities and numerous obstacles that serve to constrain rural development within the ‡Khomani Community of the Northern Cape Province, South Africa. Following the end of Apartheid, ...

  11. Environmental Entanglements: The Intersectionality of Youth Participation in an Eco-Schools Club in South Africa 

    E-Print Network [OSTI]

    Reddy, Sertanya

    2012-11-29

    Youth participation in environmental issues tends to be unquestionably accepted simply as something ‘good’. This research takes a step back to critically explore youth participation in an Eco-Schools club in a girls’ high school in South Africa...

  12. The tobacco industry's activities to undermine tobacco control efforts in Egypt and North Africa, Arabic version

    E-Print Network [OSTI]

    World Health Organization

    2006-01-01

    2025048141. PM 2025048147. Egypt Law 52. 13 November 1981.Type A priorities for Egypt, North Africa and Sub-SaharanPM 2501066214. PM 2025840642. Egypt Area V5-Year Plan, 1981–

  13. Geological and thermochronological evolution of the lower crust of southern Africa

    E-Print Network [OSTI]

    Schmitz, Mark D. (Mark David), 1972-

    2002-01-01

    Geochronological, thermochronological and isotopic studies of kimberlite-borne crustal xenoliths have been used to elucidate the architecture and thermal evolution of the continental lithosphere of southern Africa. U-Pb ...

  14. A cost-benefit approach to youth vocational training schemes in Africa 

    E-Print Network [OSTI]

    Kuanyin, Emmanuel Bol

    1974-01-01

    A COST-BENEFIT APPROACH TO YOUTH VOCATIONAL TRAINING SCHEMES IN AFRICA A Thesis By EMMANUEL BOL KUANY IN Submitted to the Graduate College of Texas ASM University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE... Oecember 1974 Major Subject: Economic s A COST-BENEFIT APPROACH TO YOUTH VOCATIONAL TRAINING SCHEMES IN AFRICA A Thesis EMMANUEL BOL KUANYIN As Approved to Style and Content by: (Chairman of Committee) (Head of Department) (Member ~ ~ (Member...

  15. The Unknown Ecology of an Environmental Pathogen: Buruli ulcer Disease in West Africa

    E-Print Network [OSTI]

    Campbell, Lindsay P.

    2013-11-20

    GIS DAY 2013 THE UNKNOWN ECOLOGY OF AN ENVIRONMENTAL PATHOGEN: BURULI ULCER DISEASE IN WEST AFRICA LINDSAY CAMPBELL ECOLOGY AND EVOLUTIONARY BIOLOGY UNIVERSITY OF KANSAS Buruli Ulcer Disease (BU) ? Mycobacterium ulcerans (MU) ? Environmental... Africa using a correlative modeling approach Images courtesy of Lindsay Campbell and http://www.who.int/buruli/photos Occurrence Data ? Laboratory confirmed cases ? (1997 – 2006) ? Sampling bias ? Random points ? 3 data sets ? ~275 locations...

  16. Contracting Out of Service Activities and the Effects on Sectoral Employment Patterns in South Africa

    E-Print Network [OSTI]

    Tregenna, Fiona

    1 CONTRACTING OUT OF SERVICE ACTIVITIES AND THE EFFECTS ON SECTORAL EMPLOYMENT PATTERNS IN SOUTH AFRICA FIONA TREGENNA Faculty of Economics, University of Cambridge ABSTRACT This paper develops a methodology and uses household... and labour survey data to analyse the extent of intersectoral outsourcing of the employment of specific labour-intensive activities in South Africa from 1997-2007. It is shown that the relatively high growth in services employment is driven by an expansion...

  17. Using satellite remote sensing to quantify woody cover and biomass across Africa 

    E-Print Network [OSTI]

    Mitchard, Edward Thomas Alexander

    2012-06-25

    The goal of quantifying the woody cover and biomass of tropical savannas, woodlands and forests using satellite data is becoming increasingly important, but limitations in current scientific understanding reduce the ...

  18. Carbon cycling, fire and phenology in a tropical savanna woodland in Nhambita, Mozambique 

    E-Print Network [OSTI]

    Ryan, Casey Merlin

    2009-01-01

    In the savanna woodlands of Southern Africa, locally know as miombo, carbon cycling is poorly quantified and many of the key processes remain obscure. For example, seasonal constraints on productivity and leaf display ...

  19. Tropical Pacific response to 20th century Atlantic warming F. Kucharski,1

    E-Print Network [OSTI]

    Kang, In-Sik

    and L. Feudale1 Received 16 November 2010; accepted 13 December 2010; published 1 February 2011. [1. Feudale (2011), Tropical Pacific response to 20th century Atlantic warming, Geophys. Res. Lett., 38, L

  20. The tropical cyclone-induced flux of carbon between the ocean and the atmosphere

    E-Print Network [OSTI]

    Zimmerman, Neil L

    2012-01-01

    Tropical cyclones are known to cause phytoplankton blooms in regions of the ocean that would otherwise support very little life; it is also known that these storms entrain carbon-rich deep water, which can cause ...

  1. Tropical cyclones within the sedimentary record : analyzing overwash deposition from event to millennial timescales

    E-Print Network [OSTI]

    Woodruff, Jonathan Dalrymple

    2009-01-01

    Tropical cyclone activity over the last 5000 years is investigated using overwash sediments from coastal lagoons on the islands of Vieques, Puerto Rico and Koshikijima, Japan. A simple sediment transport model can reproduce ...

  2. Do Gravity Waves Transport Angular Momentum away from Tropical Cyclones? YUMIN MOON AND DAVID S. NOLAN

    E-Print Network [OSTI]

    Nolan, David S.

    Do Gravity Waves Transport Angular Momentum away from Tropical Cyclones? YUMIN MOON AND DAVID S be represented solely as vorticity perturbations. For this reason, these studies (e.g., Carr and Williams 1989

  3. Population Dynamics and Tropical Deforestation: State of the Debate and Conceptual Challenges

    E-Print Network [OSTI]

    Lopez-Carr, David

    ); population. Please address correspondence to David L. Carr, University of California, Santa Barbara, CA, USAPopulation Dynamics and Tropical Deforestation: State of the Debate and Conceptual Challenges David L. Carr Laurel Suter University of California Alisson Barbieri Carolina Population Center What

  4. Tropical Storm Frances Situation Report, September 8, 2004 (10:00 PM EDT)

    SciTech Connect (OSTI)

    None

    2004-09-08

    The report provides highlights related to impacts of Tropical Storm Frances n the Florida area. Sections on electric information, oil and gas information, and county outage data are provided.

  5. Assessing impact of the sulfate aerosol first indirect effect on tropical cyclone activity

    E-Print Network [OSTI]

    Chang, Hao-yu Derek

    2015-01-01

    Tropical cyclones (TCs) are among the most expensive and lethal geophysical hazards. Studies suggest that the intensity of TCs will increase due to the thermodynamic effects of anthropogenic greenhouse gas input. In contrast, ...

  6. Connections between deep tropical clouds and the Earth's ionosphere M. E. Hagan,1

    E-Print Network [OSTI]

    California at Berkeley, University of

    Connections between deep tropical clouds and the Earth's ionosphere M. E. Hagan,1 A. Maute,1 R. G troposphere. Citation: Hagan, M. E., A. Maute, R. G. Roble, A. D. Richmond, T. J. Immel, and S. L. England

  7. Tropical Moored Buoy Implementation Panel (TIP) Report Michael J. McPhaden, TIP Chairman

    E-Print Network [OSTI]

    1 Tropical Moored Buoy Implementation Panel (TIP) Report Michael J. McPhaden, TIP Chairman NOAA-Ocean Buoy Network) moored buoy array is designed to provide high quality data in real-time for improved

  8. The biogeochemistry of tropical lakes: A case study from Lake Matano, Indonesia

    E-Print Network [OSTI]

    Crowe, S. A.; O'Neill, A. H.; Katsev, S.; Hehanussa, P.; Haffner, G. Douglas; Sundby, Bjorn; Mucci, Alfonso; Fowle, David A.

    2008-01-16

    We examined the chemical composition of the water column of Lake Matano, Sulawesi Island, Indonesia, to document how the high abundances of Fe (hydr)oxides in tropical soils and minimal seasonal temperature variability affect biogeochemical cycling...

  9. 13. Tropical Cyclone Landfall Experiment Principal Investigators: John Kaplan Peter Dodge

    E-Print Network [OSTI]

    97! 13. Tropical Cyclone Landfall Experiment ! Principal Investigators: John Kaplan Peter Dodge operational statistical models (such as the Kaplan/DeMaria decay model) and numerical models like the HWRF

  10. Organic farming practices for rice under diversified cropping systems in humid tropics.

    E-Print Network [OSTI]

    Varughese, Kuruvilla Dr; Rani, B Dr; Abraham, Suja; John, Jacob Dr; M, Vijayan Dr

    2009-01-01

    HTM (accessed on 15-1- KAU (Kerala Agricultural University).Crops. (2002) 12 th edition, Kerala Agricultural University,humid tropical regions of Kerala there is a reduction in

  11. On the role of wind driven ocean dynamics in tropical Atlantic variability 

    E-Print Network [OSTI]

    Da Silva, Meyre Pereira

    2006-08-16

    The response of the tropical Atlantic Ocean to wind stress forcing on seasonal and interannual time scales is examined using an ocean data assimilation product from the Geophysical Fluid Dynamics Laboratory (GFDL), and an ocean general circulation...

  12. Extreme rainfall intensities and long-term rainfall risk from tropical cyclones

    E-Print Network [OSTI]

    Langousis, Andreas, 1981-

    2009-01-01

    We develop a methodology for the frequency of extreme rainfall intensities caused by tropical cyclones (TCs) in coastal areas. The mean rainfall field associated with a TC with maximum tangential wind speed Vmax, radius ...

  13. Downscaling CMIP5 climate models shows increased tropical cyclone activity over the 21st century

    E-Print Network [OSTI]

    Emanuel, Kerry Andrew

    A recently developed technique for simulating large [O(10[superscript 4])] numbers of tropical cyclones in climate states described by global gridded data is applied to simulations of historical and future climate states ...

  14. Tropical Storm Frances Situation Report, September 8, 2004 (10:00 AM EDT)

    SciTech Connect (OSTI)

    2004-09-08

    The report provides highlights related to impacts of Tropical Storm Frances in the Florida area. Sections on electric information, oil and gas information, and county outage data are provided.

  15. Tropical Storm Frances Situation Report, September 7, 2004 (10:00 PM EDT)

    SciTech Connect (OSTI)

    2004-09-07

    The report provides highlights related to impacts of Tropical Storm Frances in the Florida area. Sections on electric information, oil and gas information, storm track, and county outage data are provided.

  16. Leaf traits and foliar CO2 exchange in a Peruvian tropical montane cloud forest 

    E-Print Network [OSTI]

    Van de Weg, Marjan

    2011-06-28

    Tropical montane cloud forests (TMCF) are one of the most fascinating, but least understood ecosystems in the world, and the interest in the carbon (C) cycle of TMCFs with regard to carbon sequestration and storage ...

  17. Does It Make Sense To Modify Tropical Cyclones? A Decision-Analytic Assessment

    E-Print Network [OSTI]

    Klima, Kelly

    Recent dramatic increases in damages caused by tropical cyclones (TCs) and improved understanding of TC physics have led DHS to fund research on intentional hurricane modification. We present a decision analytic assessment ...

  18. Alkyl nitrate (C 1 -C 3 ) depth profiles in the tropical Pacific Ocean

    E-Print Network [OSTI]

    Dahl, E. E; Yvon-Lewis, S. A; Saltzman, E. S

    2007-01-01

    Experiment (WOCE), vol. 2, Pacific Ocean DRAFT, edited by M.over the equatorial Pacific Ocean during SAGA 3, J. Geophys.the troposphere over the Pacific Ocean during PEM- Tropics A

  19. Reduced impact logging minimally alters tropical rainforest carbon and energy exchange

    E-Print Network [OSTI]

    2011-01-01

    Brazil | Amazon | land use | micrometeorology D eforestation in the tropics affects the land–atmosphere ex- change of trace gases and energyand energy (W·m ?2 ) ?uxes, calculated as (? = logged ? unlogged), in Tapajos National Forest, Para, Brazil.

  20. Diatom-based Late Quaternary precipitation record for lowland tropical South America 

    E-Print Network [OSTI]

    Fitzpatrick, Katharine Anne

    2012-06-25

    The late Quaternary palaeoclimatic history of the lowland Southern Hemisphere Tropics of South America (SHTSA) has been little studied and analysis of key climatic events, such as the Last Glacial Maximum (centred ~ ...

  1. Energy and Cost Associated with Ventilating Office Buildings in a Tropical Climate

    E-Print Network [OSTI]

    Rim, Donghyun; Schiavon, Stefano; Nazaroff, William W

    2015-01-01

    Building Ventilation and Energy Use in Tropical Climatesbuildings. Florida Solar Energy Center. USDOE (2011) ReportReview. U.S. Department of Energy. Pérez-Lombard L, Ortiz J,

  2. The effect of subsurface temperature variability on the predictability of SST in the tropical Atlantic Ocean 

    E-Print Network [OSTI]

    Bates, Susan Carr

    1999-01-01

    The role of thermocouple variability and its effects on tropical Atlantic SST is investigated through the generation of SST predictions using a linear inverse modeling technique developed by Penland (1989). In order to ...

  3. Analysis of TRMM Precipitation Radar Algorithms and Rain over the Tropics and Southeast Texas 

    E-Print Network [OSTI]

    Funk, Aaron

    2013-12-10

    The Tropical Rainfall Measuring Mission (TRMM) Precipitation Radar (PR) 2A23 algorithm classifies rain echo as stratiform or convective while the 2A25 algorithm corrects vertical profiles of radar reflectivity for attenuation ...

  4. Statistical Relationships of the Tropical Rainfall Measurement Mission (TRMM) Precipitation and Large-scale Flow 

    E-Print Network [OSTI]

    Borg, Kyle

    2010-07-14

    The relationship between precipitation and large-flow is important to understand and characterize in the climate system. We examine statistical relationships between the Tropical Rainfall Measurement Mission (TRMM) 3B42 ...

  5. The frequency of tropical precipitating clouds as observed by the TRMM PR and ICESat/GLAS 

    E-Print Network [OSTI]

    Casey, Sean Patrick

    2009-06-02

    Convective clouds in the tropics can be grouped into three categories: shallow clouds with cloud-top heights near 2 km above the surface, mid-level congestus clouds with tops near the 0°C level, and deep convective clouds ...

  6. Photo: Bruno Marty / IRD Observed and expected changes to the tropical

    E-Print Network [OSTI]

    Qiu, Bo

    simulations 104 3.2 Features of the tropical Pacific Ocean 105 3.2.1 Large-scale currents 105 3.2.2 Ocean.3 Observed and projected changes in the tropical Pacific Ocean 141 3.3.1 Large-scale currents 141 3.3.2 Ocean, dissolved oxygen concentration and pH affect biological activity; and oceanic currents, waves and sea level

  7. Airborne LiDAR Detects Selectively Logged Tropical Forest Even in an Advanced Stage of Recovery

    E-Print Network [OSTI]

    Kent, Rafi; Lindsell, Jeremy A.; Laurin, Gaia Vaglio; Valentini, Riccardo; Coomes, David A.

    2015-01-01

    logged tropical forests: the attained and the attainable. Conserv. Lett. 2012, 5, 296–303. 10. Silver, W. L.; Ostertag, R.; Lugo, a. E. The Potential for Carbon Sequestration Through Reforestation of Abandoned Tropical Agricultural and Pasture Lands... be of high conservation value [2,7–9] and act as globally-important carbon sinks [9–12]. However, there is much uncertainty regarding the changing extent of regenerating forests, their rate and stage of recovery, and the influence of recovery on further...

  8. Interactions of tropical synoptic-scale features as viewed from satellite 

    E-Print Network [OSTI]

    Winton, Susan Elizabeth

    1991-01-01

    INTERACTIONS OF TROPICAL SYNOPTIC-SCALE FEATURES AS VIEWED FROM SATELLITE Thesis by SUSAN ELIZABETH WINTON Submitted to tbe Office of Graduate Studies of Texas ARM University in partial fulfillment of the requirements for the degree... of MASTER OF SCIENCE December 1991 Major Subject: Meteorology INTERACTIONS QF TROPICAL SYNOPTIC-SCALE FEATURES AS VIEWED FROM SATELLITE A Thesis by SUSAN ELIZABETH WINTON Approved as to style and content by: James P. McGuirk (Chair of Committee...

  9. Towards Direct Simulation of Future Tropical Cyclone Statistics in a High-Resolution Global Atmospheric Model

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Wehner, Michael F.; Bala, G.; Duffy, Phillip; Mirin, Arthur A.; Romano, Raquel

    2010-01-01

    We present a set of high-resolution global atmospheric general circulation model (AGCM) simulations focusing on the model's ability to represent tropical storms and their statistics. We find that the model produces storms of hurricane strength with realistic dynamical features. We also find that tropical storm statistics are reasonable, both globally and in the north Atlantic, when compared to recent observations. The sensitivity of simulated tropical storm statistics to increases in sea surface temperature (SST) is also investigated, revealing that a credible late 21st century SST increase produced increases in simulated tropical storm numbers and intensities in all ocean basins. Whilemore »this paper supports previous high-resolution model and theoretical findings that the frequency of very intense storms will increase in a warmer climate, it differs notably from previous medium and high-resolution model studies that show a global reduction in total tropical storm frequency. However, we are quick to point out that this particular model finding remains speculative due to a lack of radiative forcing changes in our time-slice experiments as well as a focus on the Northern hemisphere tropical storm seasons.« less

  10. GEOPHYSICAL RESEARCH LETTERS, VOL. 28, NO. 13, PAGES 2485-2488, JUL 1, 2001 Tectospheric structure beneath southern Africa

    E-Print Network [OSTI]

    van der Lee, Suzan

    beneath southern Africa D. E. James,1 M. J. Fouch,1,2 J. C. VanDecar,1,3 S. van der Lee4 and Kaapvaal Seismic Group5 Abstract. P-wave and S-wave delay times from the broad- band data of the southern Africa in the mantle beneath southern Africa. High velocity mantle roots appear to extend to depths of at least 250 km

  11. GEOPHYSICAL RESEARCH LETTERS, VOL. 28, NO. 13,PAGES 2485-2488, JULY 1,2001 Tectospheric structure beneath southern Africa

    E-Print Network [OSTI]

    Gao, Stephen Shangxing

    beneath southern Africa D. E. James,1M. J. Fouch,1'2J. C. VanDecar, KaapvaalSeismicGroup5 S. van der Lee4 and Abstract. P-wave and S-wavedelay times from the broad- band data of the southern Africa seismicexperiment southern Africa. High velocity mantle roots appear to extend to depths of at least 250 km, and locally

  12. Energy consumption and economic development in West Africa

    SciTech Connect (OSTI)

    Chima, C.M.

    1987-01-01

    This study evaluates the commercial energy sector of the Economic Community of West African States (ECOWAS). Presently, an economic union exists between the 16 countries of West Africa that are members of ECOWAS. Although the ECOWAS region has plentiful resources of commercial energy, it faces problems in this sector for two reasons. First is the problem resulting from the diminishing traditional energy resources such as wood fuel and charcoal. Second, most ECOWAS members, except Nigeria, are net importers of commercial energy, and hence face a high import burden for oil. Liquid petroleum is the dominant form of commercial energy used in the ECOWAS despite the availability of other resources. This author basically argues that the best policy and strategy solution for dealing with energy problems is through a combination of regional cooperative effort, and a more-intensive country level. The intensity-of-use hypothesis is tested with case studies of Ghana, the Ivory Coast, and Nigeria. The results indicate that newly developing countries can deviate from the expectations of the hypothesis.

  13. Reproductive Health and Repatriation of Refugee Women in Africa: A Case of Liberian Refugee Women on Buduburam Camp

    E-Print Network [OSTI]

    DAUDA, DEBORAH

    2012-01-01

    Africa. Retrieved from Liberia: Chronic Malnutrition Blamedwww.newnarratives.org/liberia-chronic-malnutrition-blamed-S. A. (1953). This is Liberia: A Brief History of this Land

  14. Diabat L., Blanc Ph., Wald L., Solar radiation climate in Africa. Solar Energy, 76, 733-744, 2004. SOLAR RADIATION CLIMATE IN AFRICA

    E-Print Network [OSTI]

    Boyer, Edmond

    Diabaté L., Blanc Ph., Wald L., Solar radiation climate in Africa. Solar Energy, 76, 733-744, 2004 is very useful for preliminary assessment and modeling of solar energy systems. Following the approach: clearness index, atmosphere optics, clustering, interpolation, map, solar energy systems Nomenclature: (KTd

  15. Tropical waves in a GCM with zonal symmetry

    SciTech Connect (OSTI)

    Yip, K.J.J.; North, G.R. (Texas A M Univ., College Station, TX (United States))

    1993-09-01

    Tropical wave phenomena have been examined in the last 520 days of two 15-year runs of a low-resolution general circulation model (CCMO). The model boundary conditions were simplified to all-land, perpetual equinox, and no topography. The two runs were for fixed soil moisture at 75% and 0%, the so-called [open quotes]wet[close quotes] and [open quotes]dry[close quotes] models. Both models develop well-defined ITCZs with low-level convergence erratically concentrated along the equator. Highly organized eastward-propagating waves are detectable in both models with different wave speeds depending on the presence of moisture. The wave amplitudes (in, e.g., vertical velocity) are many orders of magnitude stronger in the wet model. The waves have a definite transverse nature as precipitation (low-level convergence) patches tend to move systematically north and south across the equator. In the wet model the waves are distinctly nondispersive and the transit time for passage around the earth is about 50 days, consistent with the Madden-Julian frequency. The authors are also able to see most of the expected linear wave modes in spectral density plots in the frequency-wavenumber plane and compare them for the wet and dry cases. 28 refs., 16 figs.

  16. Chemical composition of biomass from tall perennial tropical grasses

    SciTech Connect (OSTI)

    Prine, G.M.; Stricker, J.A.; Anderson, D.L.

    1995-11-01

    The tall perennial tropical grasses, elephantgrass (Pennisetum purpureum Schum.), sugarcane and energycane (Saccharum sp.) and erianthus (Erianthus arundenaceum (Retz) Jesw.) have given very high oven dry biomass yields in Florida and the warm Lower South USA. No good complete analyses of the chemical composition of these grasses for planning potential energy use was available. We sampled treatments of several tall grass demonstrations and experiments containing high-biomass yielding genotypes of the above tall grass crops at several locations in Florida over the two growing seasons, 1992 and 1993. These samples were analyzed for crude protein, NDF, ADF, cellulose, hemicellulose, lignin, and IVDMD or IVOMD. The analysis for the above constituents are reported, along with biomass yields where available, for the tall grass accessions in the various demonstrations and experiments. Particular attention is given to values obtained from the high-yielding tall grasses grown on phosphatic clays in Polk County, FL, the area targeted by a NREL grant to help commercialize bioenergy use from these crops.

  17. World Bank to raise $250M for avoided deforestation in tropics World Bank to raise $250M for avoided deforestation in tropics

    E-Print Network [OSTI]

    Street Journal. The $250 million fund will reward Indonesia, Brazil, Congo and other tropical forest argue that the Reducing Emissions from Deforestation (RED) initiative, launched in 2005 by the United their forests to offset greenhouse gas emissionsm. Meanwhile, last month Brazil -- which has the world's largest

  18. Patterns of water and heat flux across a biome gradient from tropical forest to savanna in Brazil

    E-Print Network [OSTI]

    2009-01-01

    variations in energy and carbon exchange over forest andexample, the energy stored in tropical forest biomass variedforest (JRU) and that illustrates the control that available energy

  19. Tropical biomass burning smoke plume size, shape, reflectance, and age based on 2001â??2009 MISR imagery of Borneo

    E-Print Network [OSTI]

    Zender, C. S.; Krolewski, A. G.; Tosca, M. G.; Randerson, J. T.

    2012-01-01

    C. S. Zender et al. : Tropical biomass burning smoke plumeslaboratory measurements of biomass-burning emis- sions: 1.aerosol optical depth biomass burning events: a comparison

  20. Tropical biomass burning smoke plume size, shape, reflectance, and age based on 2001-2009 MISR imagery of Borneo

    E-Print Network [OSTI]

    Zender, CS; Krolewski, AG; Tosca, MG; Randerson, JT

    2012-01-01

    C. S. Zender et al. : Tropical biomass burning smoke plumeslaboratory measurements of biomass-burning emis- sions: 1.aerosol optical depth biomass burning events: a comparison

  1. Oil and gas developments in North Africa in 1984

    SciTech Connect (OSTI)

    Michel, R.Ch.

    1985-10-01

    Petroleum rights in the 6 North African countries (Algeria, Egypt, Libya, Morocco, Sudan, and Tunisia) covered in this paper were 1,906,065 km/sup 2/ at the end of 1984, an increase of 4.6% from the 1,821,966 km/sup 2/ in force at the end of 1983. This increase is due to large awards in the Sudan despite significant relinquishments elsewhere. Seismic surveys conducted during 1984 decreased to about 510.5 crew-months onshore and 29.5 crew-months offshore. However, exploration in and off Egypt was higher compared to 1983. Exploratory drilling was lower, with only 125 wells drilled compared to 179 tests completed in 1983. The main decrease was in Egypt and Sudan, but drilling in Libya resulted in 20 more completions. A significant oil discovery was made in the offshore part of the Sirte basin, off southwest Cyrenaica. The success rate in North Africa ranged from 19% to 50% (Libya). Development drilling increased during 1984, as higher activity appears to have taken place in 3 countries. Oil production, with an estimated daily rate of 2,952,570 bbl, was up 2.8% from 1983 (2,871,460 BOPD). In Egypt, 7 fields located in the Gulf of Suez area went on stream during the year. Political unrest, which prevailed in southern Sudan during most of 1984, will likely delay the start-up of production in several fields. No statistics are available on gas production in North African countries.

  2. The appropriateness of GM crops for Sub-Saharan Africa: an assessment of current evidence (with special reference to cassava in Nigeria) 

    E-Print Network [OSTI]

    Schoof, Eva

    2011-11-23

    It is broadly accepted that agricultural growth is essential for Sub-Saharan Africa‘s development, in support of economic growth and a structural transformation of the economy towards industrialization, food security and ...

  3. Reinventing Africa into a Global Supplier of Food Goods: An Analysis of Agri-business Development, Sustainability, Supply Chain Integration and Export in Developing Economies

    E-Print Network [OSTI]

    Chisholm, Lisa M.

    2011-01-01

    Africa into a Global Supplier of Food Goods: An Analysis ofAfrica into a Global Supplier of Food Goods: An Analysis ofthe continent into a global supplier of organic, exotic and

  4. Land cover change and remote sensing: Examples of quantifying spatiotemporal dynamics in tropical forests

    SciTech Connect (OSTI)

    Krummel, J.R.; Su, Haiping; Fox, J.; Yarnasan, S.; Ekasingh, M.

    1995-06-01

    Research on human impacts or natural processes that operate over broad geographic areas must explicitly address issues of scale and spatial heterogeneity. While the tropical forests of Southeast Asia and Mexico have been occupied and used to meet human needs for thousands of years, traditional forest management systems are currently being transformed by rapid and far-reaching demographic, political, economic, and environmental changes. The dynamics of population growth, migration into the remaining frontiers, and responses to national and international market forces result in a demand for land to produce food and fiber. These results illustrate some of the mechanisms that drive current land use changes, especially in the tropical forest frontiers. By linking the outcome of individual land use decisions and measures of landscape fragmentation and change, the aggregated results shows the hierarchy of temporal and spatial events that in summation result in global changes to the most complex and sensitive biome -- tropical forests. By quantifying the spatial and temporal patterns of tropical forest change, researchers can assist policy makers by showing how landscape systems in these tropical forests are controlled by physical, biological, social, and economic parameters.

  5. The Citizen Cyberscience Lectures - 1) Mobile phones and Africa: a success story 2) Citizen Problem Solving

    ScienceCinema (OSTI)

    None

    2011-10-06

    Mobile phones and Africa: a success story Dr. Mo Ibrahim, Mo Ibrahim Foundation Citizen Problem Solving Dr. Alpheus Bingham, InnoCentive The Citizen Cyberscience Lectures are hosted by the partners of the Citizen Cyberscience Centre, CERN, The UN Institute of Training and Research and the University of Geneva. The goal of the Lectures is to provide an inspirational forum for participants from the various international organizations and academic institutions in Geneva to explore how information technology is enabling greater citizen participation in tackling global development challenges as well as global scientific research. The first Citizen Cyberscience Lectures will welcome two speakers who have both made major innovative contributions in this area. Dr. Mo Ibrahim, founder of Celtel International, one of Africa?s most successful mobile network operators, will talk about ?Mobile phones and Africa: a success story?. Dr. Alpheus Bingham, founder of InnoCentive, a Web-based community that solves industrial R&D; challenges, will discuss ?Citizen Problem Solving?. The Citizen Cyberscience Lectures are open and free of charge. Participants from outside CERN must register by sending an email to Yasemin.Hauser@cern.ch BEFORE the 23rd october to be able to access CERN. THE LECTURES Mobile phones and Africa: a success story Dr. Mo Ibrahim, Mo Ibrahim Foundation Abstract The introduction of mobile phones into Africa changed the continent, enabling business and the commercial sector, creating directly and indirectly, millions of jobs. It enriched the social lives of many people. Surprisingly, it supported the emerging civil society and advanced the course of democracy Bio Dr Mo Ibrahim is a global expert in mobile communications with a distinguished academic and business career. In 1998, Dr Ibrahim founded Celtel International to build and operate mobile networks in Africa. Celtel became one of Africa?s most successful companies with operations in 15 countries, covering more than a third of the continent?s population and investing more than US$750 million in Africa. The company was sold to MTC Kuwait in 2005 for $3.4billion. In 2006 Dr Ibrahim established the Mo Ibrahim Foundation to support great African leadership. The Foundation focuses on two major initiatives to stimulate debate around, and improve the quality of, governance in Africa. The Ibrahim Prize for Achievement in African Leadership recognises and celebrates excellence; and the Ibrahim Index of African Governance provides civil society with a comprehensive and quantifiable tool to promote government accountability. Dr Ibrahim is also Founding Chairman of Satya Capital Ltd, an investment company focused on opportunities in Africa. Dr Ibrahim has been awarded an Honorary Doctorate by the University of London?s School of Oriental and African Studies, the University of Birmingham and De Montfort University, Leicester as well as an Honorary Fellowship Award from the London Business School. He has also received the Chairman?s Award for Lifetime Achievement from the GSM Association in 2007 and the Economists Innovation Award 2007 for Social & Economic Innovation. In 2008 Dr Ibrahim was presented with the BNP Paribas Prize for Philanthropy, and also listed by TIME magazine as one of the 100 most influential people in the world. Citizen Problem Solving Dr. Alpheus Bingham, InnoCentive Abstract American playwright Damien Runyon (Guys and Dolls) once remarked, "the race is not always to the swift, nor the victory to the strong -- but that IS how you bet." Not only does a system of race handicapping follow from this logic, but the whole notion of expertise and technical qualifications. Such 'credentials' allow one to 'bet' on who might most likely solve a difficult challenge, whether as consultant, contractor or employee. Of course, the approach would differ if one were allowed to bet AFTER the race. When such systems came into broad use, i.e., chat rooms, usenets, innocentive, etc., and were subsequently studied, it was often found that the greatest probability of solu

  6. The Citizen Cyberscience Lectures - 1) Mobile phones and Africa: a success story 2) Citizen Problem Solving

    SciTech Connect (OSTI)

    2009-10-28

    Mobile phones and Africa: a success story Dr. Mo Ibrahim, Mo Ibrahim Foundation Citizen Problem Solving Dr. Alpheus Bingham, InnoCentive The Citizen Cyberscience Lectures are hosted by the partners of the Citizen Cyberscience Centre, CERN, The UN Institute of Training and Research and the University of Geneva. The goal of the Lectures is to provide an inspirational forum for participants from the various international organizations and academic institutions in Geneva to explore how information technology is enabling greater citizen participation in tackling global development challenges as well as global scientific research. The first Citizen Cyberscience Lectures will welcome two speakers who have both made major innovative contributions in this area. Dr. Mo Ibrahim, founder of Celtel International, one of Africa’s most successful mobile network operators, will talk about “Mobile phones and Africa: a success story”. Dr. Alpheus Bingham, founder of InnoCentive, a Web-based community that solves industrial R&D; challenges, will discuss “Citizen Problem Solving”. The Citizen Cyberscience Lectures are open and free of charge. Participants from outside CERN must register by sending an email to Yasemin.Hauser@cern.ch BEFORE the 23rd october to be able to access CERN. THE LECTURES Mobile phones and Africa: a success story Dr. Mo Ibrahim, Mo Ibrahim Foundation Abstract The introduction of mobile phones into Africa changed the continent, enabling business and the commercial sector, creating directly and indirectly, millions of jobs. It enriched the social lives of many people. Surprisingly, it supported the emerging civil society and advanced the course of democracy Bio Dr Mo Ibrahim is a global expert in mobile communications with a distinguished academic and business career. In 1998, Dr Ibrahim founded Celtel International to build and operate mobile networks in Africa. Celtel became one of Africa’s most successful companies with operations in 15 countries, covering more than a third of the continent’s population and investing more than US$750 million in Africa. The company was sold to MTC Kuwait in 2005 for $3.4billion. In 2006 Dr Ibrahim established the Mo Ibrahim Foundation to support great African leadership. The Foundation focuses on two major initiatives to stimulate debate around, and improve the quality of, governance in Africa. The Ibrahim Prize for Achievement in African Leadership recognises and celebrates excellence; and the Ibrahim Index of African Governance provides civil society with a comprehensive and quantifiable tool to promote government accountability. Dr Ibrahim is also Founding Chairman of Satya Capital Ltd, an investment company focused on opportunities in Africa. Dr Ibrahim has been awarded an Honorary Doctorate by the University of London’s School of Oriental and African Studies, the University of Birmingham and De Montfort University, Leicester as well as an Honorary Fellowship Award from the London Business School. He has also received the Chairman’s Award for Lifetime Achievement from the GSM Association in 2007 and the Economists Innovation Award 2007 for Social & Economic Innovation. In 2008 Dr Ibrahim was presented with the BNP Paribas Prize for Philanthropy, and also listed by TIME magazine as one of the 100 most influential people in the world. Citizen Problem Solving Dr. Alpheus Bingham, InnoCentive Abstract American playwright Damien Runyon (Guys and Dolls) once remarked, "the race is not always to the swift, nor the victory to the strong -- but that IS how you bet." Not only does a system of race handicapping follow from this logic, but the whole notion of expertise and technical qualifications. Such 'credentials' allow one to 'bet' on who might most likely solve a difficult challenge, whether as consultant, contractor or employee. Of course, the approach would differ if one were allowed to bet AFTER the race. When such systems came into broad use, i.e., chat rooms, usenets, innocentive, etc., and were subsequently studied, it was often found that the greate

  7. Education and access to fish but not economic development predict chimpanzee and mammal occurrence in West Africa

    E-Print Network [OSTI]

    c Forestry Development Authority, Wheintown, Mount Barclay, Liberia d German Centre for Integrative A.P.E.S. database Chimpanzee Education Fish protein Liberia West Africa a b s t r a c t We investigate the effects of human well-being on their environment in Liberia, West Africa. More specifically

  8. Mapping Transmission Risk of Lassa Fever in West Africa: The Importance of Quality Control, Sampling Bias, and Error Weighting

    E-Print Network [OSTI]

    Peterson, A. Townsend; Moses, Lina M.; Bausch, Daniel G.

    2014-08-08

    Lassa fever is a disease that has been reported from sites across West Africa; it is caused by an arenavirus that is hosted by the rodent M. natalensis. Although it is confined to West Africa, and has been documented in detail in some well...

  9. The origin of young mare basalts inferred from lunar meteorites Northwest Africa 4734, 032, and LaPaz Icefield 02205

    E-Print Network [OSTI]

    The origin of young mare basalts inferred from lunar meteorites Northwest Africa 4734, 032, and La accepted 21 October 2013) Abstract­Northwest Africa (NWA) 4734 is an unbrecciated basaltic lunar meteorite basalts. NWA 4734 is a low-Ti mare basalt with a low Mg* (36.5) and elevated abundances of incompatible

  10. Cowpea and peanut in southern Africa are nodulated by diverse Bradyrhizobium strains harboring nodulation genes that belong

    E-Print Network [OSTI]

    Cowpea and peanut in southern Africa are nodulated by diverse Bradyrhizobium strains harboring unguiculata) and peanut (Arachis hypogaea) in southern Africa are nodulated by a genet- ically diverse group showed that the cowpea and peanut Bradyrhizobium iso- lates represent various locally adapted groups

  11. Tropical Ocean Climate Study (TOCS) and Japan-United States Tropical Ocean Study (JUSTOS) on the R/V KAIYO, 25 Jan to 2 March 1997, to the Tropical Western Pacific Ocean BNL component

    SciTech Connect (OSTI)

    Reynolds, R.M.; Smith, S.

    1997-04-11

    The Japanese U.S. Tropical Ocean Study (JUSTOS) cruise on the R/V KAIYO in the Tropical Western Pacific Ocean was a collaborative effort with participants from the Japanese Marine Science and Technology Center (JAMSTEC), the National Center for Atmospheric Research (NCAR), and Brookhaven National Laboratory BNL. This report is a summary of the instruments, measurements, and initial analysis of the BNL portion of the cruise only. It includes a brief description of the instrument system, calibration procedures, problems and resolutions, data collection, processing and data file descriptions. This is a working document, which is meant to provide both a good description of the work and as much information as possible in one place for future analysis.

  12. Crude Existence: The Politics of Oil in Northern Angola

    E-Print Network [OSTI]

    Reed, Kristin

    2009-01-01

    carbonyl sulphide (COS), and toluene; metals like mercury, arsenic and chromium; sour gas with hydrogen sulfide (

  13. Crude Existence: The Politics of Oil in Northern Angola

    E-Print Network [OSTI]

    Reed, Kristin

    2009-01-01

    Remain Stable Despite Oil Production Cut. Octo- ber25.Chevron Expects Daily Oil Production of 620,000 Barrels in2008f. Oil Production Reaches 1.9 Million Barrels Per Day.

  14. Crude Existence: The Politics of Oil in Northern Angola

    E-Print Network [OSTI]

    Reed, Kristin

    2009-01-01

    and ranks 17th in crude oil production globally (EIA 2008).the country’s crude oil production averaged only 157,770s production of nearly 2 million barrels of crude oil per

  15. Crude Existence: The Politics of Oil in Northern Angola

    E-Print Network [OSTI]

    Reed, Kristin

    2009-01-01

    for the collection of waste oil and associ- ated chemicals.awaited decrees regulating oil industry waste management,He insisted, “This waste oil —it has all the kinds of

  16. Crude Existence: The Politics of Oil in Northern Angola

    E-Print Network [OSTI]

    Reed, Kristin

    2009-01-01

    tion. A drop in world oil prices, coupled with a decrease indisbursements declined and oil prices dropped sharply inThe drastic drop in oil prices and further agricultural

  17. Crude Existence: The Politics of Oil in Northern Angola

    E-Print Network [OSTI]

    Reed, Kristin

    2009-01-01

    investments in a new liquefied natural gas plant, localand jointly managing a liquefied natural gas (LNG) plant toJoão André, 75 Liquefied natural gas (LNG), 72; development

  18. Crude Existence: The Politics of Oil in Northern Angola

    E-Print Network [OSTI]

    Reed, Kristin

    2009-01-01

    timetable for seismic testing and exploration, the scheduleoil exploration activities he remembered were seismic tests,

  19. Crude Existence: The Politics of Oil in Northern Angola

    E-Print Network [OSTI]

    Reed, Kristin

    2009-01-01

    Katie Albrecht. 2004. Liquid Natural Gas: A Roadblock to asome of the natural gas liquids and reinjecting produced

  20. Crude Existence: The Politics of Oil in Northern Angola

    E-Print Network [OSTI]

    Reed, Kristin

    2009-01-01

    exclusionary distribution of oil rents (2001:189). map 3.likewise demonstrates how oil rents appear to materialize “becomes dependent on oil rents, the seemingly inevitable

  1. Crude Existence: The Politics of Oil in Northern Angola

    E-Print Network [OSTI]

    Reed, Kristin

    2009-01-01

    ultra-deepwater drilling vessels cost up to $250,000 per daycost of a typical well including derrick, tubulars and drillingcosts (Navarre and Lheure 2003). To maintain their competitive edge, drilling

  2. Crude Existence: The Politics of Oil in Northern Angola

    E-Print Network [OSTI]

    Reed, Kristin

    2009-01-01

    27. Mayer, Graciete. 2003. Petrobrás vai operar em águasto Chapter 2 / 217 Energy, 6/06 Petrobras, 15/06 ENI, 17/06Total, and 18/06 Petrobras (De Sousa 11. In 2003, oil

  3. Crude Existence: The Politics of Oil in Northern Angola

    E-Print Network [OSTI]

    Reed, Kristin

    2009-01-01

    25). The composition of drilling fluids influences theirto use water-based drilling fluids containing barite. Inlevels in water-based drilling fluids used in the United

  4. Crude Existence: The Politics of Oil in Northern Angola

    E-Print Network [OSTI]

    Reed, Kristin

    2009-01-01

    oil depen- dence? Catastrophic incidents can induce episodic global-local convergen- ces, and alliances

  5. Crude Existence: The Politics of Oil in Northern Angola

    E-Print Network [OSTI]

    Reed, Kristin

    2009-01-01

    Drilling Market Focus: Deepwater Drilling Remains Steady2005, but other ultra-deepwater drilling vessels cost up to

  6. Crude Existence: The Politics of Oil in Northern Angola

    E-Print Network [OSTI]

    Reed, Kristin

    2009-01-01

    www.int.iol.co.za. ———. 2004b. Heavy Oil Slick Oozes ontoThat Converts Ultra-Heavy Oil into Clean-Burning Fuel. Marchof heavy and ultra-heavy oil at the Richmond refinery (see

  7. Crude Existence: The Politics of Oil in Northern Angola

    E-Print Network [OSTI]

    Reed, Kristin

    2009-01-01

    threatening to onshore oil investments in Cabinda. It usedto a $2.2 billion oil and gas investment in Block 14. Oil,the full burden of capital investment, oil corporations also

  8. Angola-Nationally Appropriate Mitigation Actions (NAMAs) in the...

    Open Energy Info (EERE)

    Development (IISD) Sector Climate, Energy, Land, Water Focus Area Non-renewable Energy, Agriculture, Buildings, Economic Development, Energy Efficiency, Forestry,...

  9. PPage 14 ATDF JOURN AL V olum e 7, Issue 1/2 2010 The Mapungubwe Interpretive Centre in South Africa

    E-Print Network [OSTI]

    Lygeros, John

    in South Africa uses novel design and construction techniques to allow local materials and labour in South Africa. Keywords: form-finding, thrust line, masonry vaulting, local production, earth architecture, development 1. Introduction Mapungubwe National Park, on South Africa's northern border

  10. Quantitative maps of groundwater resources in Africa This article has been downloaded from IOPscience. Please scroll down to see the full text article.

    E-Print Network [OSTI]

    Jones, Peter JS

    Quantitative maps of groundwater resources in Africa This article has been downloaded from.1088/1748-9326/7/2/024009 Quantitative maps of groundwater resources in Africa A M MacDonald1, H C Bonsor1, B ´E ´O Dochartaigh1 and R G/024009 Abstract In Africa, groundwater is the major source of drinking water and its use for irrigation

  11. The onset of 1982/83 summer monsoon over southern Africa 

    E-Print Network [OSTI]

    Garanganga, Bradwell J.

    1989-01-01

    THE ONSET OF 1982/83 SUMMER MONSOON OVER SOUTHERN AFRICA; A DIAGNOSTIC STUDY A THESIS by BRADWELL J. GARANGANGA Submitted to the Office of Graduate Studies of Texas AkM University in partial fulfillment of the requirements for the degree... of MASTER OF SCIENCE December 1989 Major Subject: Meteorology THE ONSET OF 1982/83 SUMMER MONSOON OVER SOUTHERN AFRICA: A DIAGNOSTIC STUDY A THESIS by BRADWELL J. GARANGANGA Approved as to style and content by: Steven W. L ns (Chair of Committee...

  12. Constraints and solutions to pastoral production and development programs in Sub-Saharan Africa 

    E-Print Network [OSTI]

    Gelle, Khalid Ahmed

    1991-01-01

    ~ ~~7~ f Q g. g ~ eg ~eW Pfg yy CONSTRAINTS AND SOLUTIONS TO PASTORAL PRODUCTION AND DEVELOPMENT PROGRAMS IN SUB-SAHARAN AFRICA A Professional Paper by KHALID AHMED GELLE Submitted to the College of Agriculture and Life Sciences Texas A...&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE (NON-THESIS) AUGUST 1991 Major Subject: Range Science CONSTRAINTS AND SOLUTIONS TO PASTORAL PRODUCTION AND DEVELOPMENT PROGRAMS IN SUB-SAHARAN AFRICA A...

  13. Lemba, 1650-1930: A Drum of Affliction in Africa and the New World

    E-Print Network [OSTI]

    Janzen, John M.

    1982-01-01

    , and Portuguese colonial rule, mission activity, European commercial hegemony, and mechanized transport, its three-century presence across the north-bank Lower Congo/Zaire region, and its move with slave-emigrants to the New World where it still survives, make... coast, Ikenga, the cult of the hand in Eastern Nigeria, Bwiti in Gabon, Nzila in Western Zambia, as well as Beni-Ngoma and the Kalela Dance in East Africa, and the Copper Belt, or the Isangoma diviners association in South Africa. Going beyond...

  14. Tropical Cyclone Changes in the Western North Pacific in a Global Warming Scenario MARKUS STOWASSER, YUQING WANG, AND KEVIN HAMILTON

    E-Print Network [OSTI]

    Wang, Yuqing

    Tropical Cyclone Changes in the Western North Pacific in a Global Warming Scenario MARKUS STOWASSER The influence of global warming on the climatology of tropical cyclones in the western North Pacific basin Model version 2 (CCSM2) coupled global climate model. The regional model is first tested in 10 yr

  15. Mixed-phase clouds, thin cirrus clouds, and OLR over the tropics: observations, retrievals, and radiative impacts 

    E-Print Network [OSTI]

    Lee, Joonsuk

    2009-06-02

    The tropics is a very important region in terms of earth’s radiation budget because the net radiative heating is largest in the tropics and that surplus energy is redistributed by the circulations of oceans and atmospheres. Moreover, a large number...

  16. Climate response to tropical cyclone-induced ocean mixing in an1 Earth system model of intermediate complexity2

    E-Print Network [OSTI]

    Climate response to tropical cyclone-induced ocean mixing in an1 Earth system model of intermediate system model of intermediate complexity. The parameterization is based on21 previously published global. Abstract19 We introduce a parameterization of ocean mixing by tropical cyclones (TCs) into20 an Earth

  17. Anatomy and evolution of a cyclonic mesoscale eddy observed in the northeastern Pacific tropical-subtropical transition zone

    E-Print Network [OSTI]

    Anatomy and evolution of a cyclonic mesoscale eddy observed in the northeastern Pacific tropical and evolution of a cyclonic mesoscale eddy observed in the northeastern Pacific tropical-subtropical transition zone, J. Geophys. Res. Oceans, 118, doi:10.1002/ 2013JC009339. 1. Introduction [2] Mesoscale eddy

  18. Analysis and prediction of hazard risks caused by tropical cyclones in Southern China with fuzzy mathematical and grey models

    E-Print Network [OSTI]

    Zhang, Da-Lin

    Analysis and prediction of hazard risks caused by tropical cyclones in Southern China with fuzzy 2011 Keywords: Combined weights Fuzzy mathematical models Hazard risk analysis Exceeded probability Tropical cyclones Grey prediction model a b s t r a c t A hazard-risk assessment model and a grey hazard

  19. Impact of Tropical Cyclones on the Heat Budget of the South Pacific Ocean S. JULLIEN,* C. E. MENKES,1

    E-Print Network [OSTI]

    Impact of Tropical Cyclones on the Heat Budget of the South Pacific Ocean S. JULLIEN,* C. E. MENKES cyclones (TCs) in the South Pacific convergence zone through a complete ocean heat budget. The TC impact, in final form 4 May 2012) ABSTRACT The present study investigates the integrated ocean response to tropical

  20. October 1986 R. H. Johnson 721 Lower-Tropospheric Warming and Drying in Tropical Mesoscale Convective Systems

    E-Print Network [OSTI]

    Johnson, Richard H.

    October 1986 R. H. Johnson 721 Lower-Tropospheric Warming and Drying in Tropical Mesoscale components of tropical mesoscale convective systems. It is found that while the apparent heat source Q1 of mesoscale downdrafts within the mesoscale convective systems. The warming and drying at low levels