Northeast China (NEC) has become one of China's most obvious examples of climate change because of its rising warming rate of 0.35 °C/10 years. As the indicator of climate change, the dynamic of surface soil moisture (SSM) has not been assessed yet. We investigated the spatiotemporal dynamics of SSM in NEC using a 32-year SSM product and found the following. (1) SSM displayed the characteristics of being dry in the west and wet in the east and decreased with time. (2) The seasonal difference was found for the temporal dynamics of SSM: it increased in summer and decreased in spring and autumn. (3) For all four regions studied, the temporal dynamics of SSM were similar to those of the whole of NEC, but with different rates of SSM change. Moreover, SSM in regions B and D had a lower spatial variance than the other two regions because of the stable spatial pattern of cropland. (4) The change rates for SSM were consistent with that observed for the warming rates, which indicated that SSM levels derived from remote sensing data will correlate with climate change. In summary, a wetter summer and a drier spring and autumn were observed in NEC over the past 30 years.
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Research Article|
April 25 2016
The spatiotemporal patterns of surface soil moisture in Northeast China based on remote sensing products
Xingming Zheng;
1Chinese Academy of Sciences, Northeast Institute of Geography and Agroecology, Changchun 130102, China
2Chinese Academy of Sciences, Changchun Jingyuetan Remote Sensing Test Site, Changchun 130102, China
E-mail: [email protected]
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Kai Zhao;
Kai Zhao
1Chinese Academy of Sciences, Northeast Institute of Geography and Agroecology, Changchun 130102, China
2Chinese Academy of Sciences, Changchun Jingyuetan Remote Sensing Test Site, Changchun 130102, China
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Yanling Ding;
Yanling Ding
1Chinese Academy of Sciences, Northeast Institute of Geography and Agroecology, Changchun 130102, China
3Northeast Normal University, Changchun 130024, China
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Tao Jiang;
Tao Jiang
1Chinese Academy of Sciences, Northeast Institute of Geography and Agroecology, Changchun 130102, China
2Chinese Academy of Sciences, Changchun Jingyuetan Remote Sensing Test Site, Changchun 130102, China
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Shiyi Zhang;
Shiyi Zhang
1Chinese Academy of Sciences, Northeast Institute of Geography and Agroecology, Changchun 130102, China
2Chinese Academy of Sciences, Changchun Jingyuetan Remote Sensing Test Site, Changchun 130102, China
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Mengjie Jin
Mengjie Jin
1Chinese Academy of Sciences, Northeast Institute of Geography and Agroecology, Changchun 130102, China
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Journal of Water and Climate Change (2016) 7 (4): 708–720.
Article history
Received:
July 31 2015
Accepted:
March 18 2016
Citation
Xingming Zheng, Kai Zhao, Yanling Ding, Tao Jiang, Shiyi Zhang, Mengjie Jin; The spatiotemporal patterns of surface soil moisture in Northeast China based on remote sensing products. Journal of Water and Climate Change 1 December 2016; 7 (4): 708–720. doi: https://doi.org/10.2166/wcc.2016.106
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