AMS Forum: Climate Change Manifested by Changes in Weather


Wind and water supply reduction by aerosol particles

Mark Z. Jacobson, Stanford University, Stanford, CA; and Y. J. Kaufman

Aerosol particles, directly and through their enhancement of clouds, reduce near-surface wind speeds below them. This reduction may explain a portion of observed “disappearing winds” in China and may decrease the energy available for wind-turbine electricity. In California, slower winds and cooler surface temperatures due to aerosol particles reduce emission of wind-driven soil dust and sea spray and reduce evaporation and moisture advection, contributing, along with the second indirect aerosol effect, to reduced precipitation and water supply by 2-5%. .

Session 6, Impacts of Aerosols on Weather and Climate
Thursday, 18 January 2007, 1:30 PM-5:45 PM, 214D

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