Remote Sensing Monitoring for Drought in Henan Province Based on MODIS

WANG Zong-min; YANG Hai-bo; JI Qi-cai; LI Xiao-tao

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Remote Sensing Monitoring for Drought in Henan Province Based on MODIS

- Remote Sensing Monitoring for Drought in Henan Province Based on MODIS
- Bulletin of Soiland Water Conservation Vol. 31, Issue 1, Pages: 139-143(2012)
- 作者机构：
  
  1. 郑州大学信息网络重点学科开放实验室水利与环境学院,河南,郑州,450001
  2. 中国水利水电科学研究院,北京,100044
- 作者简介：
- 基金信息：
- DOI：
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- Published：2012
- 稿件说明：
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WANG Zong-min, YANG Hai-bo, JI Qi-cai, et al. Remote Sensing Monitoring for Drought in Henan Province Based on MODIS[J]. Bulletin of Soiland Water Conservation, 2012, 31(1): 139-143.
DOI：

WANG Zong-min, YANG Hai-bo, JI Qi-cai, et al. Remote Sensing Monitoring for Drought in Henan Province Based on MODIS[J]. Bulletin of Soiland Water Conservation, 2012, 31(1): 139-143. DOI：

摘要

基于遥感的大面积干旱监测发挥着重要作用

但多种不同的遥感干旱指数在不同区域的空间适应性研究相对较少。利用MODIS数据分别计算归一化植被指数、距平植被指数、植被状态指数和温度状态指数等

并结合传统气象干旱指数分析近10a来河南省的干旱情况。结果表明

2000—2009年有6a发生了不同程度的干旱

其中豫北和豫西地区的干旱程度严重

遥感干旱监测的结果与气象干旱指数基本一致;分析了河南省不同区域和时段内基于遥感的干旱指数与气象干旱指数的相关性

总结出4种基于遥感的干旱指数在时空格局中的适用性

为干旱监测提供技术支持。

Abstract

Large scale drought monitoring based on remote sensing plays an important role and however

only a few studies of the spatial adaptability about a variety of remote sensing drought indexes in different regions were conducted.Normalized difference vegetation index(NDVI)

anomaly vegetation index(AVI)

vegetation condition index(VCI)

and temperature condition index(TCI) were separately calculated based on MODIS images of He′nan Province and its drought situation in the latest decade was analyzed in combination with traditional meteorological drought index.Results showed that droughts occurred at different extents in six years between 2000 and 2009 and the northern and western parts of He′nan Province were more prone to suffer from severe droughts.Result from remote sensing monitoring for drought was consistent with the meteorological drought index.After analyzing the correlation between remote sensing drought index and meteorological drought index in different periods and regions of He′nan Province

four indices were found to have spatiotemporal adaptability.The research provides a technological support for drought monitoring.

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