Surface soil moisture assessment in taiwan using modis data

Y. J. Lin, C. F. Chen, L. Y. Chang, N. T. Son

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Soil moisture is a key factor in controlling the exchange of water between land surface and plant transpiration. The main focus of this study is to assess soil moisture conditions in the plains of Taiwan using Moderate Resolution Imaging Spectroradiometer (MODIS) data. Precipitation data are used for accuracy validation. A simple surface dryness index (temperature-vegetation dryness index - TVDI) based on an empirical parameterization of the relationship between Land Surface Temperature (LST) and Normalized Difference Vegetation Index (NDVI), is used for estimating land surface soil moisture. The initial results reveal that there is good agreement between the TVDI and precipitation data, indicating that TVDI is a good indicator of soil moisture conditions. This study demonstrates the usefulness of utilizing MODIS data in soil moisture monitoring in the plains of Taiwan.

Original languageEnglish
Title of host publication31st Asian Conference on Remote Sensing 2010, ACRS 2010
Pages1247-1251
Number of pages5
StatePublished - 2010
Event31st Asian Conference on Remote Sensing 2010, ACRS 2010 - Hanoi, Viet Nam
Duration: 1 Nov 20105 Nov 2010

Publication series

Name31st Asian Conference on Remote Sensing 2010, ACRS 2010
Volume2

Conference

Conference31st Asian Conference on Remote Sensing 2010, ACRS 2010
Country/TerritoryViet Nam
CityHanoi
Period1/11/105/11/10

Keywords

  • MODIS data
  • Soil moisture
  • Taiwan

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