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| Temporal-spatial Changes of Water Storage in Xinjiang, China during 2003-2012 |
| Sun Qian, Tashpolat·Tiyip, Ding Jianli, Mamat·Sawut, Zhang Fei, Jiang Hongtao |
| College of Resources and Environment Science/Key Laboratory of Oasis Ecology/Key Laboratory of Wisdom Urban in Xinjiang and Environmental Modeling, Xinjiang University, Urumqi 830046, China |
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Abstract In this study, the water reserves over Xinjiang was inversed based on 120-monthes GRACE data from January 2003 to December 2012. Gaussian smoothing and smoothing filtering method were used to analysis the temporal and spatial changes of water storage and its trend during the 10 years, with the TRMM data as auxiliary data. The conclusions as below: the water storage is keeping decreasing during these 10 years, but the decreasing rate of water storage during the later five years is smaller than the previous five years. The area that with a significantly decrease trend of water storage is migrating to the east part of Xinjiang gradually; the area that with an increasing trend is getting lager, but the increasing trend is not the leading role. The fluctuations of the GRACE year annual cycle values and the water thickness inverse are identical. The change of water reserve inversed with GRACE data is parallel with the TRMM precipitation trend. This study provides a reliable theoretical basis for the rational use of water in Xinjiang, as well as rational development of water resources in water-scarce regions.
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Received: 30 September 2013
Published: 20 November 2014
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Corresponding Authors:
塔西甫拉提·特依拜(Email:tash@xju.edu.cn)
E-mail: tash@xju.edu.cn
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2014, Vol. 34 
