Abstract
Aerosols serve as cloud condensation nuclei (CCN) and thus have a substantial effect on cloud properties and the initiation of precipitation. Large concentrations of human-made aerosols have been reported to both decrease and increase rainfall as a result of their radiative and CCN activities. At one extreme, pristine tropical clouds with low CCN concentrations rain out too quickly to mature into long-lived clouds. On the other hand, heavily polluted clouds evaporate much of their water before precipitation can occur, if they can form at all given the reduced surface heating resulting from the aerosol haze layer. We propose a conceptual model that explains this apparent dichotomy.
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Dates
Type | When |
---|---|
Created | 16 years, 11 months ago (Sept. 7, 2008, 12:13 p.m.) |
Deposited | 1 year, 7 months ago (Jan. 10, 2024, 3:24 a.m.) |
Indexed | 1 day, 15 hours ago (Aug. 23, 2025, 1:04 a.m.) |
Issued | 16 years, 11 months ago (Sept. 5, 2008) |
Published | 16 years, 11 months ago (Sept. 5, 2008) |
Published Print | 16 years, 11 months ago (Sept. 5, 2008) |
@article{Rosenfeld_2008, title={Flood or Drought: How Do Aerosols Affect Precipitation?}, volume={321}, ISSN={1095-9203}, url={http://dx.doi.org/10.1126/science.1160606}, DOI={10.1126/science.1160606}, number={5894}, journal={Science}, publisher={American Association for the Advancement of Science (AAAS)}, author={Rosenfeld, Daniel and Lohmann, Ulrike and Raga, Graciela B. and O’Dowd, Colin D. and Kulmala, Markku and Fuzzi, Sandro and Reissell, Anni and Andreae, Meinrat O.}, year={2008}, month=sep, pages={1309–1313} }