气候变化领域集成服务门户(CCPortal): 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

CCPortal

DOI	10.5194/acp-19-4963-2019
	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
	Mallet M.; Nabat P.; Zuidema P.; Redemann J.; Mark Sayer A.; Stengel M.; Schmidt S.; Cochrane S.; Burton S.; Ferrare R.; Meyer K.; Saide P.; Jethva H.; Torres O.; Wood R.; Saint Martin D.; Roehrig R.; Hsu C.; Formenti P.
发表日期	2019
ISSN	16807316
起始页码	4963
结束页码	4990
卷号	19 期号:7
英文摘要	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 (ĝ1/40.7< over continental sources and ĝ1/40.3< over the SAO at 550nm) 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 4km, 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 +6Wmĝ'2< over the SAO (20gS-10N and 10gW-20E) 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 (ĝ'25< W mĝ'2<) and surface land temperature (ĝ'1.5< ĝ
语种	英语
scopus关键词	aerosol; atmospheric transport; biomass burning; boundary layer; optical depth; optical property; radiative forcing; regional climate; smoke; vertical distribution; Atlantic Ocean; Atlantic Ocean (Southeast)
来源期刊	Atmospheric Chemistry and Physics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/144486
作者单位	Centre National de Recherches Météorologiques, UMR3589, Météo-France-CNRS, Toulouse, France; Rosenstiel School of Marine and Atmospheric Sciences, University of Miami, Miami, FL, United States; University of Oklahoma, Norman, OK, United States; Universities Space Research Association, Columbia, MD, United States; NASA Goddard Space Flight Center, Greenbelt, MD, United States; Deutscher Wetterdienst (DWD), Offenbach, Germany; Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, CO, United States; NASA Langley Research Center, Hampton, VA, United States; Department of Atmospheric and Oceanic Sciences (AOS), University of California, Los Angeles (UCLA), Los Angeles, CA, United States; Department of Atmospheric Sciences, University of Washington, Seattle, WA, United States; Laboratoire Interuniversitaire des Systèmes Atmosphériques, UMR CNRS 7583, Université Paris Est Créteil et Université Paris Diderot, Institut Pierre Simon Laplace, Paris, France
推荐引用方式 GB/T 7714	Mallet M.,Nabat P.,Zuidema P.,et al. 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[J],2019,19(7).
APA	Mallet M..,Nabat P..,Zuidema P..,Redemann J..,Mark Sayer A..,...&Formenti P..(2019).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.Atmospheric Chemistry and Physics,19(7).
MLA	Mallet M.,et al."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".Atmospheric Chemistry and Physics 19.7(2019).