Validity Analysis and Downscale Research on GLDAS Temperature Data in the Weihe River Basin

摘要：

　　The temperature observation data of Huan County station and Changwu station in Weihe River Basin are used for the validity analysis of the temperature parameters provided by GLDAS products which are assimilated in NOAH mode on day,month and year scale.Based on the temperature vertical decline rate,GLDAS temperature data are downscaled with the surface elevation with the reversed distance weighted method.The spatial resolution of GLDAS temperature data are increased from 0.25 ℃ to 0.01 ℃,the data precision are improved,and the downscaled data highlight the influence of the terrain,thus the distributions of temperature are more reasonable.The result shows that the temperature parameters provided by GLDAS products which are assimilated in NOAH mode are able to reflect the distributions of temperature in Weihe River Basin,and the downseale method used in this article is feasible.

关键词： Weihe River Basin GLDAS temperature data validity analysis downscale

作者: Wang Mingcheng Yang Shengtian Lv Yang Song Wenlong

作者单位: School of Geography, Beijing Normal University, State Key Laboratory of Remote Sensing Science, Beijing Key Laboratory of Environmental Remote Sensing and Digital City, Beijing, 100875, China

会议类型: 国际会议

会议名称: The 5th International Yellow River Forum (第五届黄河国际论坛)

会议地点: 郑州

会议语种:英文

页码: 417-422

在线出版日期: 2012-09-24（万方平台首次上网日期，不代表论文的发表时间）