利用GRACE地球重力场模型研究中国西南区域水储量变化

摘要

利用GRACE数据中心发布的2003-01—2010-12月的月平均重力场模型,反演了中国陆地水储量变化,并结合气象和水利部门的相关实测资料,重点对西南区域的水储量变化进行了分析.结果表明GRACE提供的水储量变化结果与实际情况符合较好,2009-09—2010-04月的西南五省特大旱灾,也得到了较好的反映.%By use of the monthly average gravity model,from Jan. 2003 to Dec. 2010, released by GRACE datacenter CSR,we obtain the variation of continental water storage in China, then analyse and explaint the results with meteorological and hydrological information. The research suggests that the variation of water storage from GRACE is in good agreement with reality, and reflects well the severe drought in southwest provinces from Sep. 2009 to Apr. 2010.