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
P. Dirmeyer;Xiang Gao;T. Oki
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其他
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作者:
P. Dirmeyer;Xiang Gao;T. Oki

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海洋-陆地-大气研究中心(COLA)在美国航天局陆地水文学方案的支持下,最近主办了第二个全球土壤湿度项目(GSWP-2)的启动研讨会。该项目是全球陆地大气系统研究(GLASS; Polcher等人,2000年)中大尺度非耦合陆地表面模拟行动的主要内容,也是国际卫星陆地表面气候学项目的主要内容,这两个项目都是GEWEX的贡献项目。全球地表水方案的总体目标是作为一项社区工作,制作全球地表水和能量循环的最佳模型估计数。这将需要评估与陆面方案、其参数和驱动这些方案的强迫变量有关的不确定性。GSWP最初的试点阶段涵盖了ISLSCP倡议I数据集的两年期(1987-1988年),并证明了全球尺度陆地表面模型比较和敏感性研究的实用性(Dirmeyer等人1999)。
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).