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Advances in Meteorology
Volume 2018, Article ID 1950529, 14 pages
https://doi.org/10.1155/2018/1950529
Research Article

Changes of Soil Moisture from Multiple Sources during 1988–2010 in the Yellow River Basin, China

1Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, School of Geographical Sciences, Nanjing University of Information Science and Technology, Nanjing 210044, China
2Jiangsu Meteorological Bureau, Meteorological Services Center, Nanjing 210008, China
3Lianyungang Meteorological Bureau, Lianyungang 222006, China

Correspondence should be addressed to Guojie Wang; moc.361@tsiun_gnawg

Received 29 December 2017; Revised 22 February 2018; Accepted 12 March 2018; Published 24 April 2018

Academic Editor: Jifu Yin

Copyright © 2018 Dan Lou et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Soil moisture is a key variable in terrestrial water cycle, playing a key role in the exchange of water and energy in the land-atmosphere interface. The spatiotemporal variations of soil moisture from multiple sources during 1988–2010 are evaluated against in situ observations in the Yellow River basin, China, including the Essential Climate Variable satellite’s passive microwave product (), ERA-Interim reanalysis (), the National Centers for Environmental Prediction/Department of Energy’s Reanalysis-2 (), and the Variable Infiltration Capacity model products (). The seasonal soil moisture dynamics of and appear to be consistent with , with significant soil drying in spring and wetting in summer. and , however, fail to capture the soil drying before rainy seasons. Remarkably, shows large agreement with in terms of the interannual variations and the long-term drying trends. captures the interannual variations but fails to have the long-term trends in . As for and , they fail to capture both the interannual variations and the long-term soil drying trends in .