Other
Scientific paper
Oct 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006georl..3320708r&link_type=abstract
Geophysical Research Letters, Volume 33, Issue 20, CiteID L20708
Other
12
Atmospheric Composition And Structure: Biosphere/Atmosphere Interactions (0426, 1610), Global Change: Land/Atmosphere Interactions (1218, 1843, 3322), Hydrology: Soil Moisture, Atmospheric Processes: Radiative Processes, Atmospheric Processes: Clouds And Aerosols
Scientific paper
Summer soil moisture increased significantly from 1958 to the mid 1990s in Ukraine and Russia. This trend cannot be explained by changes in precipitation and temperature alone. To investigate the possible contribution from solar dimming and upward CO2 trends, we conducted experiments with a sophisticated land surface model. We demonstrate, by imposing a downward trend in incoming shortwave radiation forcing to mimic the observed dimming, that the observed soil moisture pattern can be well reproduced. On the other hand, the effects of upward CO2 trends were relatively small for the study period. Our results suggest tropospheric air pollution plays an important role in land water storage at the regional scale, and needs to be addressed accurately to study the effects of global warming on water resources.
Li Haibin
Robock Alan
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