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Analysis of Drought Detection and Propagation Using Satellite Data  

Shin, Sha-Chul (안동대학교 토목공학과)
Eoh, Min-Sun (국립방재연구소)
Publication Information
Journal of the Korean Society of Hazard Mitigation / v.4, no.2, 2004 , pp. 61-69 More about this Journal
Abstract
Drought is one of the mai or environmental disasters. Weather data, particularity rainfall, are currently the primary source of information widely used for drought monitoring. However, weather data are often from a very sparse meteorological network. Therefore, data obtained from the Advanced Very High Resolution Radiometer(AVHRR) sensor boarded on the NOAA polar-orbiting satellites have been studied as a tool for drought monitoring. The normalized difference vegetation index(NDVI) and vegetation condition index(VCI) were used in this study. Also, a simple method to detect drought Is Proposed based on climatic water balance using NOAA/AVHRR data. The results clearly show that temporal and spatial characteristics of drought in Korea can be detected and mapped by the moisture index.
Keywords
Drought; NOAA/AVHRR; VCI; Climatic Water Balance;
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