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

Author:

Lou Dan1,Wang Guojie1ORCID,Shan Chan2,Hagan Daniel Fiifi T.1,Ullah Waheed1,Shi Dawei3

Affiliation:

1. Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, School of Geographical Sciences, Nanjing University of Information Science and Technology, Nanjing 210044, China

2. Jiangsu Meteorological Bureau, Meteorological Services Center, Nanjing 210008, China

3. Lianyungang Meteorological Bureau, Lianyungang 222006, China

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 (SMECV), ERA-Interim reanalysis (SMERA), the National Centers for Environmental Prediction/Department of Energy’s Reanalysis-2 (SMNCEP), and the Variable Infiltration Capacity model products (SMVIC). The seasonal soil moisture dynamics of SMECV and SMVIC appear to be consistent with SMinsitu, with significant soil drying in spring and wetting in summer. SMERA and SMNCEP, however, fail to capture the soil drying before rainy seasons. Remarkably, SMECV shows large agreement with SMin  situ in terms of the interannual variations and the long-term drying trends. SMVIC captures the interannual variations but fails to have the long-term trends in SMin  situ. As for SMERA and SMNCEP, they fail to capture both the interannual variations and the long-term soil drying trends in SMin  situ.

Funder

National Key Research and Development Program of China

Publisher

Hindawi Limited

Subject

Atmospheric Science,Pollution,Geophysics

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