The Second Global Soil Wetness Project (GSWP-2)
The Second Global Soil Wetness Project (GSWP-2)
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发表时间:
2003-04
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通讯作者:
P. Dirmeyer;Xiang Gao;T. Oki
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作者:
P. Dirmeyer;Xiang Gao;T. Oki
The Center for Ocean-Land-Atmosphere Studies (COLA), with support from the NASA Program on Terrestrial Hydrology, recently hosted the kickoff workshop of the Second Global Soil Wetness Project (GSWP-2). The project is the principal element of the large-scale uncoupled land surface modeling action in the Global Land-Atmosphere System Study (GLASS; Polcher et al. 2000) and a major element of the International Satellite Land-Surface Climatology Project (ISLSCP), both contributing projects of GEWEX. The overarching goal of GSWP is to produce as a community effort the best model estimates of the global land-surface water and energy cycles. This will entail an evaluation of the uncertainties linked to the land surface schemes (LSSs), their parameters and the forcing variables which drive them. The original pilot phase of GSWP covered the two-year period of the ISLSCP initiative I data set (1987-1988), and proved the utility of model comparison and sensitivity studies of the land surface at the global scale (Dirmeyer et al. 1999).