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Title: Upscaled diurnal cycles of land–atmosphere fluxes: a new global half-hourly data product

Abstract

Interactions between the biosphere and the atmosphere can be well characterized by fluxes between the two. In particular, carbon and energy fluxes play a major role in understanding biogeochemical processes on an ecosystem level or global scale. However, the fluxes can only be measured at individual sites, e.g., by eddy covariance towers, and an upscaling of these local observations is required to analyze global patterns. Previous work focused on upscaling monthly, 8-day, or daily average values, and global maps for each flux have been provided accordingly. In this paper, we raise the upscaling of carbon and energy fluxes between land and atmosphere to the next level by increasing the temporal resolution to subdaily timescales. We provide continuous half-hourly fluxes for the period from 2001 to 2014 at 0.5° spatial resolution, which allows for analyzing diurnal cycles globally. The data set contains four fluxes: gross primary production (GPP), net ecosystem exchange (NEE), latent heat (LE), and sensible heat (H). We propose two prediction approaches for the diurnal cycles based on large-scale regression models and compare them in extensive cross-validation experiments using different sets of predictor variables. We analyze the results for a set of FLUXNET tower sites showing the suitability of our approaches for thismore » upscaling task. Finally, we have selected one approach to calculate the global half-hourly data products based on predictor variables from remote sensing and meteorology at daily resolution as well as half-hourly potential radiation. In addition, we provide a derived product that only contains monthly average diurnal cycles, which is a lightweight version in terms of data storage that still allows studying the important characteristics of diurnal patterns globally. We recommend to primarily use these monthly average diurnal cycles, because they are less affected by the impacts of day-to-day variation, observation noise, and short-term fluctuations on subdaily timescales compared to the full half-hourly flux products. The global half-hourly data products are available at https://doi.org/10.17871/BACI.224.« less

Authors:
 [1];  [1];  [1]; ORCiD logo [2];  [2]
  1. Max Planck Society, Jena (Germany). Max Planck Inst. for Biogeochemistry
  2. Max Planck Society, Jena (Germany). Max Planck Inst. for Biogeochemistry; German Centre for Integrative Biodiversity Research, Leipzig (Germany); Michael Stifel Center Jena (Germany)
Publication Date:
Research Org.:
Oregon State Univ., Corvallis, OR (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Biological and Environmental Research (BER) (SC-23)
OSTI Identifier:
1507382
Grant/Contract Number:  
FG02-04ER63911; FG02-04ER63917
Resource Type:
Accepted Manuscript
Journal Name:
Earth System Science Data (Online)
Additional Journal Information:
Journal Name: Earth System Science Data (Online); Journal Volume: 10; Journal Issue: 3; Journal ID: ISSN 1866-3516
Publisher:
Copernicus
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES

Citation Formats

Bodesheim, Paul, Jung, Martin, Gans, Fabian, Mahecha, Miguel D., and Reichstein, Markus. Upscaled diurnal cycles of land–atmosphere fluxes: a new global half-hourly data product. United States: N. p., 2018. Web. doi:10.5194/essd-10-1327-2018.
Bodesheim, Paul, Jung, Martin, Gans, Fabian, Mahecha, Miguel D., & Reichstein, Markus. Upscaled diurnal cycles of land–atmosphere fluxes: a new global half-hourly data product. United States. doi:10.5194/essd-10-1327-2018.
Bodesheim, Paul, Jung, Martin, Gans, Fabian, Mahecha, Miguel D., and Reichstein, Markus. Fri . "Upscaled diurnal cycles of land–atmosphere fluxes: a new global half-hourly data product". United States. doi:10.5194/essd-10-1327-2018. https://www.osti.gov/servlets/purl/1507382.
@article{osti_1507382,
title = {Upscaled diurnal cycles of land–atmosphere fluxes: a new global half-hourly data product},
author = {Bodesheim, Paul and Jung, Martin and Gans, Fabian and Mahecha, Miguel D. and Reichstein, Markus},
abstractNote = {Interactions between the biosphere and the atmosphere can be well characterized by fluxes between the two. In particular, carbon and energy fluxes play a major role in understanding biogeochemical processes on an ecosystem level or global scale. However, the fluxes can only be measured at individual sites, e.g., by eddy covariance towers, and an upscaling of these local observations is required to analyze global patterns. Previous work focused on upscaling monthly, 8-day, or daily average values, and global maps for each flux have been provided accordingly. In this paper, we raise the upscaling of carbon and energy fluxes between land and atmosphere to the next level by increasing the temporal resolution to subdaily timescales. We provide continuous half-hourly fluxes for the period from 2001 to 2014 at 0.5° spatial resolution, which allows for analyzing diurnal cycles globally. The data set contains four fluxes: gross primary production (GPP), net ecosystem exchange (NEE), latent heat (LE), and sensible heat (H). We propose two prediction approaches for the diurnal cycles based on large-scale regression models and compare them in extensive cross-validation experiments using different sets of predictor variables. We analyze the results for a set of FLUXNET tower sites showing the suitability of our approaches for this upscaling task. Finally, we have selected one approach to calculate the global half-hourly data products based on predictor variables from remote sensing and meteorology at daily resolution as well as half-hourly potential radiation. In addition, we provide a derived product that only contains monthly average diurnal cycles, which is a lightweight version in terms of data storage that still allows studying the important characteristics of diurnal patterns globally. We recommend to primarily use these monthly average diurnal cycles, because they are less affected by the impacts of day-to-day variation, observation noise, and short-term fluctuations on subdaily timescales compared to the full half-hourly flux products. The global half-hourly data products are available at https://doi.org/10.17871/BACI.224.},
doi = {10.5194/essd-10-1327-2018},
journal = {Earth System Science Data (Online)},
number = 3,
volume = 10,
place = {United States},
year = {2018},
month = {7}
}

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CO2 fluxes of a Scots pine forest growing in the warm and dry southern upper Rhine plain, SW Germany
journal, December 2005

  • Schindler, Dirk; Türk, Matthias; Mayer, Helmut
  • European Journal of Forest Research, Vol. 125, Issue 3
  • DOI: 10.1007/s10342-005-0107-1

Improving canopy processes in the Community Land Model version 4 (CLM4) using global flux fields empirically inferred from FLUXNET data
journal, January 2011

  • Bonan, Gordon B.; Lawrence, Peter J.; Oleson, Keith W.
  • Journal of Geophysical Research, Vol. 116, Issue G2
  • DOI: 10.1029/2010JG001593

The full greenhouse gas balance of an abandoned peat meadow
journal, January 2007

  • Hendriks, D. M. D.; van Huissteden, J.; Dolman, A. J.
  • Biogeosciences, Vol. 4, Issue 3
  • DOI: 10.5194/bg-4-411-2007

Seasonal and interannual patterns of carbon and water fluxes of a poplar plantation under peculiar eco-climatic conditions
journal, September 2009


Forest and agricultural land-use-dependent CO2 exchange in Thuringia, Germany
journal, December 2004


Landscape-level terrestrial methane flux observed from a very tall tower
journal, February 2015


Predicting carbon dioxide and energy fluxes across global FLUXNET sites with regression algorithms
journal, January 2016

  • Tramontana, Gianluca; Jung, Martin; Schwalm, Christopher R.
  • Biogeosciences, Vol. 13, Issue 14
  • DOI: 10.5194/bg-13-4291-2016

Partitioning European grassland net ecosystem CO2 exchange into gross primary productivity and ecosystem respiration using light response function analysis
journal, June 2007

  • Gilmanov, T. G.; Soussana, J. F.; Aires, L.
  • Agriculture, Ecosystems & Environment, Vol. 121, Issue 1-2
  • DOI: 10.1016/j.agee.2006.12.008

Experimental analysis of flux footprint for varying stability conditions in an alpine meadow
journal, December 2005


The role of grazing management for the net biome productivity and greenhouse gas budget (CO2, N2O and CH4) of semi-natural grassland
journal, June 2007

  • Allard, V.; Soussana, J. -F.; Falcimagne, R.
  • Agriculture, Ecosystems & Environment, Vol. 121, Issue 1-2
  • DOI: 10.1016/j.agee.2006.12.004

Carbon, nitrogen and Greenhouse gases budgets over a four years crop rotation in northern France
journal, March 2011


The carbon budget of semi-arid grassland in a wet and a dry year in Hungary
journal, June 2007


The carbon budget of newly established temperate grassland depends on management intensity
journal, June 2007

  • Ammann, C.; Flechard, C. R.; Leifeld, J.
  • Agriculture, Ecosystems & Environment, Vol. 121, Issue 1-2
  • DOI: 10.1016/j.agee.2006.12.002

High density biomass estimation for wetland vegetation using WorldView-2 imagery and random forest regression algorithm
journal, August 2012

  • Mutanga, Onisimo; Adam, Elhadi; Cho, Moses Azong
  • International Journal of Applied Earth Observation and Geoinformation, Vol. 18
  • DOI: 10.1016/j.jag.2012.03.012

Eight years of continuous carbon fluxes measurements in a Portuguese eucalypt stand under two main events: Drought and felling
journal, April 2011


Carbon exchange between ecosystems and atmosphere in the Czech Republic is affected by climate factors
journal, May 2011


Bagging predictors
journal, August 1996


Random Forests for Classification in Ecology
journal, November 2007

  • Cutler, D. Richard; Edwards, Thomas C.; Beard, Karen H.
  • Ecology, Vol. 88, Issue 11
  • DOI: 10.1890/07-0539.1

Modeling carbon dynamics in two adjacent spruce forests with different soil conditions in Russia
journal, January 2008


Regional inversion of CO 2 ecosystem fluxes from atmospheric measurements: reliability of the uncertainty estimates
journal, January 2013

  • Broquet, G.; Chevallier, F.; Bréon, F. -M.
  • Atmospheric Chemistry and Physics, Vol. 13, Issue 17
  • DOI: 10.5194/acp-13-9039-2013

ECOWAT—A model for ecosystem evapotranspiration estimation
journal, October 2009


Biophysical regulations of carbon fluxes of a steppe and a cultivated cropland in semiarid Inner Mongolia
journal, October 2007


Carbon dioxide exchange in a semidesert grassland through drought-induced vegetation change
journal, January 2010

  • Scott, Russell L.; Hamerlynck, Erik P.; Jenerette, G. Darrel
  • Journal of Geophysical Research, Vol. 115, Issue G3
  • DOI: 10.1029/2010JG001348

Monitoring the Multi-Year Carbon Balance of a Subarctic Palsa Mire with Micrometeorological Techniques
journal, July 2012

  • Christensen, Torben R.; Jackowicz-Korczyński, Marcin; Aurela, Mika
  • AMBIO, Vol. 41, Issue S3
  • DOI: 10.1007/s13280-012-0302-5

An atmospheric perspective on North American carbon dioxide exchange: CarbonTracker
journal, November 2007

  • Peters, W.; Jacobson, A. R.; Sweeney, C.
  • Proceedings of the National Academy of Sciences, Vol. 104, Issue 48
  • DOI: 10.1073/pnas.0708986104

Evidence for Enhanced Land–Atmosphere Feedback in a Warming Climate
journal, June 2012

  • Dirmeyer, Paul A.; Cash, Benjamin A.; Kinter, James L.
  • Journal of Hydrometeorology, Vol. 13, Issue 3
  • DOI: 10.1175/JHM-D-11-0104.1

Carbon dioxide fluxes dominate the greenhouse gas exchanges of a seasonal wetland in the wet–dry tropics of northern Australia
journal, December 2013


Mapping Arctic Tundra Vegetation Communities Using Field Spectroscopy and Multispectral Satellite Data in North Alaska, USA
journal, November 2016

  • Davidson, Scott; Santos, Maria; Sloan, Victoria
  • Remote Sensing, Vol. 8, Issue 12
  • DOI: 10.3390/rs8120978

Implications of the carbon cycle steady state assumption for biogeochemical modeling performance and inverse parameter retrieval: STEADY STATE EFFECTS ON C FLUX MODELING
journal, April 2008

  • Carvalhais, Nuno; Reichstein, Markus; Seixas, Júlia
  • Global Biogeochemical Cycles, Vol. 22, Issue 2
  • DOI: 10.1029/2007GB003033

Soil moisture controls on canopy-scale water and carbon fluxes in an African savanna: SOIL MOISTURE CONTROLS ON FLUXES
journal, September 2004

  • Williams, Christopher A.; Albertson, John D.
  • Water Resources Research, Vol. 40, Issue 9
  • DOI: 10.1029/2004WR003208

The carbon balance of a young Beech forest
journal, June 2000


Spatial and temporal variability in forest-atmosphere CO2 exchange
journal, October 2004


Variability in carbon exchange of European croplands
journal, November 2010

  • Moors, Eddy J.; Jacobs, Cor; Jans, Wilma
  • Agriculture, Ecosystems & Environment, Vol. 139, Issue 3
  • DOI: 10.1016/j.agee.2010.04.013

Seasonal Variation in CO2 Efflux of Stems and Branches of Norway Spruce Trees
journal, December 2007

  • Acosta, M.; Pavelka, M.; Pokorny, R.
  • Annals of Botany, Vol. 101, Issue 3
  • DOI: 10.1093/aob/mcm304

Carbon exchange of a mature, naturally regenerated pine forest in north Florida
journal, August 2008


Using landscape and depth gradients to decouple the impact of correlated environmental variables on soil microbial community composition
journal, February 2007


A long-term record of carbon exchange in a boreal black spruce forest: means, responses to interannual variability, and decadal trends
journal, March 2007


Separating the effects of climate and vegetation on evapotranspiration along a successional chronosequence in the southeastern US
journal, November 2006


Reviews and syntheses: An empirical spatiotemporal description of the global surface–atmosphere carbon fluxes: opportunities and data limitations
journal, January 2017

  • Zscheischler, Jakob; Mahecha, Miguel D.; Avitabile, Valerio
  • Biogeosciences, Vol. 14, Issue 15
  • DOI: 10.5194/bg-14-3685-2017

Carbon, energy and water fluxes at mature and disturbed forest sites, Saskatchewan, Canada
journal, February 2006


Drag coefficient and turbulence intensity in conifer canopies
journal, February 2004


Fluxes all of the time? A primer on the temporal representativeness of FLUXNET: FLUXES ALL OF THE TIME?
journal, February 2017

  • Chu, Housen; Baldocchi, Dennis D.; John, Ranjeet
  • Journal of Geophysical Research: Biogeosciences, Vol. 122, Issue 2
  • DOI: 10.1002/2016JG003576

River flow forecasting through conceptual models part I — A discussion of principles
journal, April 1970


Ecosystem-level CO2 fluxes from a boreal cutover in eastern Canada before and after scarification
journal, November 2006


Random and systematic CO2 flux sampling errors for tower measurements over forests in the convective boundary layer
journal, January 2009


Long-term impact of a stand-replacing fire on ecosystem CO 2 exchange of a ponderosa pine forest
journal, August 2008


Random Forests
journal, January 2001


Large carbon uptake by an unmanaged 250-year-old deciduous forest in Central Germany
journal, September 2003

  • Knohl, Alexander; Schulze, Ernst-Detlef; Kolle, Olaf
  • Agricultural and Forest Meteorology, Vol. 118, Issue 3-4
  • DOI: 10.1016/S0168-1923(03)00115-1

Physiological optimization underlies growth rate-independent chlorophyll-specific gross and net primary production
journal, January 2010

  • Halsey, Kimberly H.; Milligan, Allen J.; Behrenfeld, Michael J.
  • Photosynthesis Research, Vol. 103, Issue 2
  • DOI: 10.1007/s11120-009-9526-z

Global patterns of land-atmosphere fluxes of carbon dioxide, latent heat, and sensible heat derived from eddy covariance, satellite, and meteorological observations
journal, January 2011

  • Jung, Martin; Reichstein, Markus; Margolis, Hank A.
  • Journal of Geophysical Research, Vol. 116
  • DOI: 10.1029/2010JG001566

Soil respiration in a Mediterranean oak forest at different developmental stages after coppicing
journal, January 2006


    Works referencing / citing this record:

    Advances in the Remote Sensing of Terrestrial Evaporation
    journal, May 2019

    • McCabe, Matthew F.; Miralles, Diego G.; Holmes, Thomas R. H.
    • Remote Sensing, Vol. 11, Issue 9
    • DOI: 10.3390/rs11091138

    Advances in the Remote Sensing of Terrestrial Evaporation
    journal, May 2019

    • McCabe, Matthew F.; Miralles, Diego G.; Holmes, Thomas R. H.
    • Remote Sensing, Vol. 11, Issue 9
    • DOI: 10.3390/rs11091138