Regions of Strong Coupling Between Soil Moisture and Precipitation

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Science  20 Aug 2004:
Vol. 305, Issue 5687, pp. 1138-1140
DOI: 10.1126/science.1100217

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Previous estimates of land-atmosphere interaction (the impact of soil moisture on precipitation) have been limited by a lack of observational data and by the model dependence of computational estimates. To counter the second limitation, a dozen climate-modeling groups have recently performed the same highly controlled numerical experiment as part of a coordinated comparison project. This allows a multimodel estimation of the regions on Earth where precipitation is affected by soil moisture anomalies during Northern Hemisphere summer. Potential benefits of this estimation may include improved seasonal rainfall forecasts.

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