Spatiotemporal variations of soil moisture in the Tarim River basin, China

被引：48
|
作者：
Su, Buda [1 ,2 ,3 ]
Wang, Anqian [1 ]
Wang, Guojie [1 ]
Wang, Yanjun [1 ]
Jiang, Tong [1 ,3 ]
机构：
[1] Nanjing Univ Informat Sci & Technol, Sch Geog & Remote Sensing, Collaborat Innovat Ctr Forecast & Evaluat Meteoro, Nanjing 210044, Jiangsu, Peoples R China
[2] Chinese Acad Sci, Xinjiang Inst Ecol & Geog, State Key Lab Desert & Oasis Ecol, Urumqi 830011, Peoples R China
[3] China Meteorol Adm, Natl Climate Ctr, Beijing 10081, Peoples R China
来源：
INTERNATIONAL JOURNAL OF APPLIED EARTH OBSERVATION AND GEOINFORMATION | 2016年 / 48卷
基金：
中国国家自然科学基金;
关键词：
Soil moisture; Microwave remote sensing; Variation; The Tarim River basin; CLIMATE-CHANGE; SATELLITE; DATASETS; TREND;
D O I：
10.1016/j.jag.2015.06.012
中图分类号：
TP7 [遥感技术];
学科分类号：
081102 ; 0816 ; 081602 ; 083002 ; 1404 ;
摘要：
Based on in situ soil moisture and river runoff records in the Tarim River basin, usability of the long term Essential Climate Variable (ECV) soil moisture dataset is validated in the arid climatic region of China. The spatio-temporal variation of soil moisture and its possible influencing factors in the 1988-2013 is also preliminary analyzed in the current,paper. Results reveal that the ECV soil moisture can capture the large scale dynamics of regional water cycle quite satisfactorily, showing good agreement with in situ observations in their seasonal and interannual variability. In the period of 1988-2013, the ECV soil moisture shows obvious increasing trends in the northwest and the southwest parts of the Tarim River basin, particularly in spring (March-May) and autumn (September-November). Statistical analysis further suggests that the variations of soil moisture in the Tarim River basin are more controlled by precipitation, and temperature is less effective in controlling of soil moisture variations. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：122 / 130
页数：9
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