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Title: Simulation of the transport, vertical distribution, optical properties and radiative impact of smoke aerosols with the ALADIN regional climate model during the ORACLES-2016 and LASIC experiments

Abstract

Estimates of the direct radiative effect (DRE) from absorbing smoke aerosols over the southeast Atlantic Ocean (SAO) require simulation of the microphysical and optical properties of stratocumulus clouds as well as of the altitude and shortwave (SW) optical properties of biomass burning aerosols (BBAs). In this study, we take advantage of the large number of observations acquired during the ObseRvations of Aerosols above Clouds and their intEractionS (ORACLES-2016) and Layered Atlantic Smoke Interactions with Clouds (LASIC) projects during September 2016 and compare them with datasets from the ALADIN-Climate (Aire Limitée Adaptation dynamique Développement InterNational) regional model. The model provides a good representation of the liquid water path but the low cloud fraction is underestimated compared to satellite data. The modeled total-column smoke aerosol optical depth (AOD) and above-cloud AOD are consistent (~0.7 over continental sources and ~0.3 over the SAO at 550 nm) with the Modern-Era Retrospective analysis for Research and Applications version 2 (MERRA-2), Ozone Monitoring Instrument (OMI) or Moderate Resolution Imaging Spectroradiometer (MODIS) data. The simulations indicate smoke transport over the SAO occurs mainly between 2 and 4 km, consistent with surface and aircraft lidar observations. The BBA single scattering albedo is slightly overestimated compared to the Aerosolmore » Robotic Network (AERONET) and more significantly when compared to Ascension Island surface observations. The difference could be due to the absence of internal mixing treatment in the ALADIN-Climate model. The SSA overestimate leads to an underestimation of the simulated SW radiative heating compared to ORACLES data. ALADIN-Climate simulates a positive (monthly mean) SW DRE of about +6 W m-2 over the SAO (20° S–10° N and 10° W–20° E) at the top of the atmosphere and in all-sky conditions. Over the continent, the presence of BBA is shown to significantly decrease the net surface SW flux, through direct and semi-direct effects, which is compensated by a decrease (monthly mean) in sensible heat fluxes (-25 W m-2) and surface land temperature (-1.5 °C) over Angola, Zambia and the Democratic Republic of the Congo, notably. The surface cooling and the lower tropospheric heating decrease the continental planetary boundary layer height by about ~200 m.« less

Authors:
 [1];  [1]; ORCiD logo [2];  [3]; ORCiD logo [4]; ORCiD logo [5]; ORCiD logo [6];  [6];  [7];  [7]; ORCiD logo [8]; ORCiD logo [9];  [4];  [8]; ORCiD logo [10]; ORCiD logo [1];  [1];  [8]; ORCiD logo [11]
  1. Centre National de Recherches Météorologiques, Toulouse (France)
  2. Univ. of Miami, Miami, FL (United States)
  3. Univ. of Oklahoma, Norman, OK (United States)
  4. Universities Space Research Association, Columbia, MD (United States); NASA Goddard Space Flight Center (GSFC), Greenbelt, MD (United States)
  5. Deutscher Wetterdienst (DWD), Offenbach (Germany)
  6. Univ. of Colorado, Boulder, CO (United States)
  7. NASA Langley Research Center, Hampton, VA (United States)
  8. NASA Goddard Space Flight Center (GSFC), Greenbelt, MD (United States)
  9. Univ. of California, Los Angeles, CA (United States)
  10. Univ. of Washington, Seattle, WA (United States)
  11. Univ. Paris Est Créteil et Univ. Paris Diderot (France). , Inst. Pierre Simon Laplace
Publication Date:
Research Org.:
Univ. of Miami, FL (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Atmospheric Radiation Measurement (ARM) Data Center
Sponsoring Org.:
USDOE Office of Science (SC), Biological and Environmental Research (BER)
Contributing Org.:
PNNL, BNL, ANL, ORNL
OSTI Identifier:
1612906
Alternate Identifier(s):
OSTI ID: 1679949
Grant/Contract Number:  
SC0018272
Resource Type:
Accepted Manuscript
Journal Name:
Atmospheric Chemistry and Physics (Online)
Additional Journal Information:
Journal Name: Atmospheric Chemistry and Physics (Online); Journal Volume: 19; Journal Issue: 7; Journal ID: ISSN 1680-7324
Publisher:
European Geosciences Union
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences

Citation Formats

Mallet, Marc, Nabat, Pierre, Zuidema, Paquita, Redemann, Jens, Sayer, Andrew Mark, Stengel, Martin, Schmidt, Sebastian, Cochrane, Sabrina, Burton, Sharon, Ferrare, Richard, Meyer, Kerry, Saide, Pablo, Jethva, Hiren, Torres, Omar, Wood, Robert, Saint Martin, David, Roehrig, Romain, Hsu, Christina, and Formenti, Paola. Simulation of the transport, vertical distribution, optical properties and radiative impact of smoke aerosols with the ALADIN regional climate model during the ORACLES-2016 and LASIC experiments. United States: N. p., 2019. Web. doi:10.5194/acp-19-4963-2019.
Mallet, Marc, Nabat, Pierre, Zuidema, Paquita, Redemann, Jens, Sayer, Andrew Mark, Stengel, Martin, Schmidt, Sebastian, Cochrane, Sabrina, Burton, Sharon, Ferrare, Richard, Meyer, Kerry, Saide, Pablo, Jethva, Hiren, Torres, Omar, Wood, Robert, Saint Martin, David, Roehrig, Romain, Hsu, Christina, & Formenti, Paola. Simulation of the transport, vertical distribution, optical properties and radiative impact of smoke aerosols with the ALADIN regional climate model during the ORACLES-2016 and LASIC experiments. United States. https://doi.org/10.5194/acp-19-4963-2019
Mallet, Marc, Nabat, Pierre, Zuidema, Paquita, Redemann, Jens, Sayer, Andrew Mark, Stengel, Martin, Schmidt, Sebastian, Cochrane, Sabrina, Burton, Sharon, Ferrare, Richard, Meyer, Kerry, Saide, Pablo, Jethva, Hiren, Torres, Omar, Wood, Robert, Saint Martin, David, Roehrig, Romain, Hsu, Christina, and Formenti, Paola. Fri . "Simulation of the transport, vertical distribution, optical properties and radiative impact of smoke aerosols with the ALADIN regional climate model during the ORACLES-2016 and LASIC experiments". United States. https://doi.org/10.5194/acp-19-4963-2019. https://www.osti.gov/servlets/purl/1612906.
@article{osti_1612906,
title = {Simulation of the transport, vertical distribution, optical properties and radiative impact of smoke aerosols with the ALADIN regional climate model during the ORACLES-2016 and LASIC experiments},
author = {Mallet, Marc and Nabat, Pierre and Zuidema, Paquita and Redemann, Jens and Sayer, Andrew Mark and Stengel, Martin and Schmidt, Sebastian and Cochrane, Sabrina and Burton, Sharon and Ferrare, Richard and Meyer, Kerry and Saide, Pablo and Jethva, Hiren and Torres, Omar and Wood, Robert and Saint Martin, David and Roehrig, Romain and Hsu, Christina and Formenti, Paola},
abstractNote = {Estimates of the direct radiative effect (DRE) from absorbing smoke aerosols over the southeast Atlantic Ocean (SAO) require simulation of the microphysical and optical properties of stratocumulus clouds as well as of the altitude and shortwave (SW) optical properties of biomass burning aerosols (BBAs). In this study, we take advantage of the large number of observations acquired during the ObseRvations of Aerosols above Clouds and their intEractionS (ORACLES-2016) and Layered Atlantic Smoke Interactions with Clouds (LASIC) projects during September 2016 and compare them with datasets from the ALADIN-Climate (Aire Limitée Adaptation dynamique Développement InterNational) regional model. The model provides a good representation of the liquid water path but the low cloud fraction is underestimated compared to satellite data. The modeled total-column smoke aerosol optical depth (AOD) and above-cloud AOD are consistent (~0.7 over continental sources and ~0.3 over the SAO at 550 nm) with the Modern-Era Retrospective analysis for Research and Applications version 2 (MERRA-2), Ozone Monitoring Instrument (OMI) or Moderate Resolution Imaging Spectroradiometer (MODIS) data. The simulations indicate smoke transport over the SAO occurs mainly between 2 and 4 km, consistent with surface and aircraft lidar observations. The BBA single scattering albedo is slightly overestimated compared to the Aerosol Robotic Network (AERONET) and more significantly when compared to Ascension Island surface observations. The difference could be due to the absence of internal mixing treatment in the ALADIN-Climate model. The SSA overestimate leads to an underestimation of the simulated SW radiative heating compared to ORACLES data. ALADIN-Climate simulates a positive (monthly mean) SW DRE of about +6 W m-2 over the SAO (20° S–10° N and 10° W–20° E) at the top of the atmosphere and in all-sky conditions. Over the continent, the presence of BBA is shown to significantly decrease the net surface SW flux, through direct and semi-direct effects, which is compensated by a decrease (monthly mean) in sensible heat fluxes (-25 W m-2) and surface land temperature (-1.5 °C) over Angola, Zambia and the Democratic Republic of the Congo, notably. The surface cooling and the lower tropospheric heating decrease the continental planetary boundary layer height by about ~200 m.},
doi = {10.5194/acp-19-4963-2019},
journal = {Atmospheric Chemistry and Physics (Online)},
number = 7,
volume = 19,
place = {United States},
year = {Fri Apr 12 00:00:00 EDT 2019},
month = {Fri Apr 12 00:00:00 EDT 2019}
}

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  • Proceedings of the National Academy of Sciences, Vol. 115, Issue 12
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Aerosol indirect effect on warm clouds over South-East Atlantic, from co-located MODIS and CALIPSO observations
journal, January 2012


Dust aerosol radiative effects during summer 2012 simulated with a coupled regional aerosol–atmosphere–ocean model over the Mediterranean
journal, January 2014

  • Nabat, P.; Somot, S.; Mallet, M.
  • Atmospheric Chemistry and Physics Discussions, Vol. 14, Issue 18
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Two decades observing smoke above clouds in the south-eastern Atlantic Ocean: Deep Blue algorithm updates and validation with ORACLES field campaign data
journal, January 2019

  • Sayer, Andrew M.; Hsu, N. Christina; Lee, Jaehwa
  • Atmospheric Measurement Techniques, Vol. 12, Issue 7
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aoppsap1flynn1m.c1
dataset, January 2021

  • Koontz, Annette; Flynn, Connor
  • Atmospheric Radiation Measurement (ARM) Archive, Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (US); ARM Data Center, Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
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The SURFEXv7.2 land and ocean surface platform for coupled or offline simulation of Earth surface variables and fluxes
journal, January 2012

  • Masson, V.; Le Moigne, P.; Martin, E.
  • Geoscientific Model Development Discussions, Vol. 5, Issue 4
  • DOI: 10.5194/gmdd-5-3771-2012

Host model uncertainties in aerosol radiative forcing estimates: results from the AeroCom prescribed intercomparison study
journal, January 2012

  • Stier, P.; Schutgens, N. A. J.; Bian, H.
  • Atmospheric Chemistry and Physics Discussions, Vol. 12, Issue 9
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The role of the southern African easterly jet in modifying the southeast Atlantic aerosol and cloud environments: Role of the AEJ-S over Southeast Atlantic
journal, April 2016

  • Adebiyi, Adeyemi A.; Zuidema, Paquita
  • Quarterly Journal of the Royal Meteorological Society, Vol. 142, Issue 697
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Injection height of biomass burning aerosols as seen from a spaceborne lidar
journal, January 2007

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  • Geophysical Research Letters, Vol. 34, Issue 11
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Modeling the atmospheric dust cycle: 1. Design of a soil-derived dust emission scheme
journal, January 1995

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Correction of the Calibration of the 3-wavelength Particle Soot Absorption Photometer (3λ PSAP)
journal, June 2010


Description of the radiation scheme in the ECMWF model
text, January 1989


Spectral nudging in a spectral regional climate model
journal, October 2008


Effects of aging on organic aerosol from open biomass burning smoke in aircraft and laboratory studies
journal, January 2011

  • Cubison, M. J.; Ortega, A. M.; Hayes, P. L.
  • Atmospheric Chemistry and Physics, Vol. 11, Issue 23
  • DOI: 10.5194/acp-11-12049-2011

Aerosol indirect effect on warm clouds over South-East Atlantic, from co-located MODIS and CALIPSO observations
journal, January 2013

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  • Atmospheric Chemistry and Physics, Vol. 13, Issue 1
  • DOI: 10.5194/acp-13-69-2013

Evaluation of biomass burning aerosols in the HadGEM3 climate model with observations from the SAMBBA field campaign
journal, January 2016

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  • Atmospheric Chemistry and Physics, Vol. 16, Issue 22
  • DOI: 10.5194/acp-16-14657-2016

Evaluating the diurnal cycle of South Atlantic stratocumulus clouds as observed by MSG SEVIRI
journal, January 2018

  • Seethala, Chellappan; Meirink, Jan Fokke; Horváth, Ákos
  • Atmospheric Chemistry and Physics, Vol. 18, Issue 17
  • DOI: 10.5194/acp-18-13283-2018

Host model uncertainties in aerosol radiative forcing estimates: results from the AeroCom prescribed intercomparison study
journal, January 2012

  • Stier, P.; Schutgens, N. A. J.; Bian, H.
  • Atmospheric Chemistry and Physics Discussions, Vol. 12, Issue 9
  • DOI: 10.5194/acpd-12-25487-2012

Dust aerosol radiative effects during summer 2012 simulated with a coupled regional aerosol–atmosphere–ocean model over the Mediterranean
journal, January 2014

  • Nabat, P.; Somot, S.; Mallet, M.
  • Atmospheric Chemistry and Physics Discussions, Vol. 14, Issue 18
  • DOI: 10.5194/acpd-14-25351-2014

Development and basic evaluation of a prognostic aerosol scheme (v1) in the CNRM Climate Model CNRM-CM6
journal, January 2015

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  • Geoscientific Model Development, Vol. 8, Issue 3
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The SURFEXv7.2 land and ocean surface platform for coupled or offline simulation of Earth surface variables and fluxes
journal, January 2012

  • Masson, V.; Le Moigne, P.; Martin, E.
  • Geoscientific Model Development Discussions, Vol. 5, Issue 4
  • DOI: 10.5194/gmdd-5-3771-2012

Works referencing / citing this record:

Overview of aerosol optical properties over southern West Africa from DACCIWA aircraft measurements
journal, January 2020

  • Denjean, Cyrielle; Bourrianne, Thierry; Burnet, Frederic
  • Atmospheric Chemistry and Physics, Vol. 20, Issue 8
  • DOI: 10.5194/acp-20-4735-2020

Observations of supermicron-sized aerosols originating from biomass burning in southern Central Africa
journal, January 2021

  • Miller, Rose M.; McFarquhar, Greg M.; Rauber, Robert M.
  • Atmospheric Chemistry and Physics, Vol. 21, Issue 19
  • DOI: 10.5194/acp-21-14815-2021