Aerosol effects on global land surface energy fluxes during 2003–2010
Abstract
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.
- Authors:
-
- Department of Earth, Atmospheric, and Planetary Sciences Purdue University West Lafayette Indiana USA
- Department of Earth, Atmospheric, and Planetary Sciences Purdue University West Lafayette Indiana USA, Now at Department of Organismic and Evolutionary Biology Harvard University Cambridge Massachusetts USA
- Department of Earth, Atmospheric, and Planetary Sciences Purdue University West Lafayette Indiana USA, Department of Agronomy Purdue University West Lafayette Indiana USA
- Publication Date:
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1402153
- Grant/Contract Number:
- DE‐FG02‐08ER64599
- Resource Type:
- Publisher's Accepted Manuscript
- Journal Name:
- Geophysical Research Letters
- Additional Journal Information:
- Journal Name: Geophysical Research Letters Journal Volume: 41 Journal Issue: 22; Journal ID: ISSN 0094-8276
- Publisher:
- American Geophysical Union (AGU)
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Liu, Shaoqing, Chen, Min, and Zhuang, Qianlai. Aerosol effects on global land surface energy fluxes during 2003–2010. United States: N. p., 2014.
Web. doi:10.1002/2014GL061640.
Liu, Shaoqing, Chen, Min, & Zhuang, Qianlai. Aerosol effects on global land surface energy fluxes during 2003–2010. United States. https://doi.org/10.1002/2014GL061640
Liu, Shaoqing, Chen, Min, and Zhuang, Qianlai. Fri .
"Aerosol effects on global land surface energy fluxes during 2003–2010". United States. https://doi.org/10.1002/2014GL061640.
@article{osti_1402153,
title = {Aerosol effects on global land surface energy fluxes during 2003–2010},
author = {Liu, Shaoqing and Chen, Min and Zhuang, Qianlai},
abstractNote = {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.},
doi = {10.1002/2014GL061640},
journal = {Geophysical Research Letters},
number = 22,
volume = 41,
place = {United States},
year = {Fri Nov 28 00:00:00 EST 2014},
month = {Fri Nov 28 00:00:00 EST 2014}
}
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