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2019, 38(1) 286-292 DOI:
10.3969/j.issn.1004-5589.2019.01.028 ISSN: 1004-5589 CN: 22-1111/P |
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Soil water inversion in Huangshui River basin based on MODIS and GLDAS data |
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SUN Mao-jun1, LI Xia1, LI Xiao-gang1, XIE Xiao-wei2 |
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1. 1st Institute of Surveying and Mapping Qinghai Province, Xining 810001, China;
2. School of Geodesy and Geomatics, Wuhan University, Wuhan 430079, China |
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Abstract��
Soil water inversion with apparent thermal inertia is suitable for areas with low vegetation coverage. The temporal and spatial variations of soil water in Huangshui River basin from 2014 to 2016 were retrieved by using GLDAS data and apparent thermal inertia from MODIS data, and the relationship between soil water and precipitation was compared and analyzed. The results show that the surface soil water in Huangshui River basin fluctuates from 17 mm to 19 mm, and its overall change shows an increasing trend. The surface soil water storage in the southeastern part of the basin is relatively high, while that in the northwestern part is relatively low. Precipitation is the main reason for the periodic change of surface soil water. |
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Keywords��
MODIS
GLDAS
apparent thermal inertia
soil water
inversion
Huangshui River
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Received 2018-12-06 Revised 2019-01-10 Online: |
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DOI: 10.3969/j.issn.1004-5589.2019.01.028 |
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