Comparative analysis of surface soil moisture retrieval using VSWI and TVDI in karst areas

Hongbo Yan; Guoqing Zhou; Xianjian Lu

doi:10.1117/12.2207397

9 December 2015 Comparative analysis of surface soil moisture retrieval using VSWI and TVDI in karst areas

Hongbo Yan, Guoqing Zhou, Xianjian Lu

Proceedings Volume 9808, International Conference on Intelligent Earth Observing and Applications 2015; 980806 (2015) https://doi.org/10.1117/12.2207397
Event: International Conference on Intelligent Earth Observing and Applications, 2015, Guilin, China

Abstract

Vegetation Supply Water Index (VSWI) and Temperature Vegetation dryness Index (TVDI) are two most commonly used methods for surface soil moisture (SSM) retrieval using electromagnetic spectrum of visible, near infrared and thermal infrared band. Both of them take into account the effect of vegetation index (VI) and surface temperature (Ts) on SSM. A comparative analysis of the ability and effect of the two methods for SSM retrieval in karst areas was carried out, using the remote sensing data of Landsat 8 OLI_TIRS. The study area is located in Guilin, which is a typical karst area. The experimental results show that TVDI is more suitable for SSM retrieval in karst areas.

Citation Download Citation

Hongbo Yan, Guoqing Zhou, and Xianjian Lu "Comparative analysis of surface soil moisture retrieval using VSWI and TVDI in karst areas", Proc. SPIE 9808, International Conference on Intelligent Earth Observing and Applications 2015, 980806 (9 December 2015); https://doi.org/10.1117/12.2207397

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