globalchange  > 气候减缓与适应
DOI: 10.1002/2014GL061640
Title:
Aerosol effects on global land surface energy fluxes during 2003-2010
Author: Liu S.; Chen M.; Zhuang Q.
Source Publication: Geophysical Research Letters
ISSN: 0094-9564
EISSN: 1944-9295
Publishing Year: 2014
Volume: 41, Issue:22
pages begin: 7875
pages end: 7881
Language: 英语
Keyword: aerosol ; energy fluxes ; terrestrial ecosystem model
Scopus Keyword: Aerosols ; Budget control ; Ecology ; Ecosystems ; Evapotranspiration ; Forestry ; Radiative transfer ; Soil moisture ; Sun ; Aerosol-cloud interaction ; Atmospheric radiative transfer models ; Downward solar radiation ; Energy fluxes ; Evaporative fraction ; Global land surface ; Surface heat fluxes ; Terrestrial ecosystems ; Heat flux ; aerosol ; carbon cycle ; ecosystem modeling ; energy budget ; energy flux ; evapotranspiration ; evergreen forest ; land surface ; latent heat flux ; sensible heat flux ; soil moisture ; solar radiation ; terrestrial ecosystem ; Aerosols ; Ecosystems ; Energy ; Forests ; Sun Light
English Abstract: Aerosols affect downward solar radiation, impacting the terrestrial ecosystem carbon dynamics and energy budget. Here we apply a coupled modeling framework of a terrestrial ecosystem model and an atmospheric radiative transfer model to evaluate aerosol direct radiative effects on the surface heat fluxes of global terrestrial ecosystems during 2003-2010. We find that aerosol loadings decrease the mean latent heat flux by 2.4 Wm-2 (or evapotranspiration by 28 mm) and sensible heat flux by 16 Wm-2. As a result, global mean soil moisture and water evaporative fraction have increased by 0.5% and 4%, respectively. Spatially, aerosol effects are significant in tropical forests and temperate broadleaf evergreen forests. This study is among the first quantifications of aerosols' effects on the heat fluxes of the global terrestrial ecosystems. The study further suggests that both direct and indirect aerosol radiative effects through aerosol-cloud interactions should be considered to quantify the energy budget of the global terrestrial ecosystems. © 2014. American Geophysical Union. All Rights Reserved.
Related Link: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84923340242&doi=10.1002%2f2014GL061640&partnerID=40&md5=23a68b8447129665f7d5737e8bb5467d
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Document Type: 期刊论文
Identifier: http://119.78.100.158/handle/2HF3EXSE/6828
Appears in Collections:气候减缓与适应

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Affiliation: Department of Earth, Atmospheric, and Planetary Sciences, Purdue University, West Lafayette, IN, United States

Recommended Citation:
Liu S.,Chen M.,Zhuang Q.. Aerosol effects on global land surface energy fluxes during 2003-2010[J]. Geophysical Research Letters,2014-01-01,41(22).
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