Development and testing of a remote sensing-based model for estimating groundwater levels in aeolian desert areas of China

Aidi Huo, Xun-Hong Chen, Huike Li, Ming Hou, Xiaojing Hou

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Regional groundwater level is an important data set for understanding the relationships between groundwater resources and regional ecological environments. The decline in water table levels leads to vegetation degradation and thus affects the ecological environment. Such a negative effect is especially apparent in the desertification areas. In this study, a remote-sensing based method was proposed to predict the distribution of the regional groundwater level in an aeolian desert area in northern China. The study used the Moderate Resolution Imaging Spectroradiometer (MODIS) remote sensing data and field investigations. Based on field investigation of groundwater level, soil moisture, and other supporting information in the aeolian desert area, as well as the soil moisture distribution derived from the MODIS images, empirical equations describing the relationship between the soil moisture and groundwater level were obtained. The groundwater levels derived using the MODIS image data were verified by groundwater levels measured from 58 wells. The results show that the correlation coefficient between the measured groundwater levels and the remote sensing-based estimated water levels was 0.868, indicating that the error is small and the predictions closely reflect the real water levels. This model can be used to predict groundwater levels in aeolian desert areas based on remote sensing data sets.

Original languageEnglish (US)
Pages (from-to)29-37
Number of pages9
JournalCanadian Journal of Soil Science
Volume91
Issue number1
DOIs
StatePublished - Feb 1 2011

Fingerprint

water table
remote sensing
deserts
desert
groundwater
China
testing
MODIS
moderate resolution imaging spectroradiometer
soil moisture
water level
soil water
desertification
groundwater resource
well
degradation
vegetation
prediction

Keywords

  • Aeolian desert areas
  • Groundwater level
  • Monitoring
  • Remote sensing

ASJC Scopus subject areas

  • Soil Science

Cite this

Development and testing of a remote sensing-based model for estimating groundwater levels in aeolian desert areas of China. / Huo, Aidi; Chen, Xun-Hong; Li, Huike; Hou, Ming; Hou, Xiaojing.

In: Canadian Journal of Soil Science, Vol. 91, No. 1, 01.02.2011, p. 29-37.

Research output: Contribution to journalArticle

Huo, Aidi ; Chen, Xun-Hong ; Li, Huike ; Hou, Ming ; Hou, Xiaojing. / Development and testing of a remote sensing-based model for estimating groundwater levels in aeolian desert areas of China. In: Canadian Journal of Soil Science. 2011 ; Vol. 91, No. 1. pp. 29-37.
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