| 安徽省MODIS干旱监测技术研究 |
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| 引用本文： | 刘惠敏,马小群,孙秀帮.安徽省MODIS干旱监测技术研究[J].气象,2010,36(4):111-115. |
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| 作者姓名： | 刘惠敏 马小群 孙秀帮 |
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| 作者单位： | 安徽省气象科学研究所,合肥,230031 |
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| 基金项目： | 中国气象局2007年多轨道业务建设项目“中国农业气象灾害监测予警系统建设”,中国气象局科研项目(CMATG2008S06)资助 |
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| 摘 要： | 为了更有效地监测安徽省农业干旱,以安徽省半湿润区、过渡区为研究对象,利用MODIS资料,在对比分析了基于植被供水指数和温度植被干旱指数两种干旱监测方法基础上,结合已业务应用的农业干旱指标累积湿润指数,开展安徽省分时段的晴空遥感干旱监测研究,建立并确定了部分时段半湿润区、过渡区的MODIS植被供水指数和温度植被干旱等级标准,同时结合当地台站监测土壤墒情对干旱监测进行检验。结果表明,作物生长季节VSWI、TVDI与累积湿润指数存在相关性,两种方法建立指标和模型可以用来分时段进行区域干旱监测,得出了初夏旱TVDI更适合于研究区域的干旱监测。
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| 关 键 词： | 植被供水指数 温度植被干旱指数 MODIS干旱监测 |
| 收稿时间： | 2008/11/17 0:00:00 |
| 修稿时间： | 2009/12/11 0:00:00 |
Drought Monitoring Composite MODIS Satellite Remote Sensing Technique in Anhui Province |
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| LIU Huimin,MA Xiaoqun and SUN Xiubang.Drought Monitoring Composite MODIS Satellite Remote Sensing Technique in Anhui Province[J].Meteorological Monthly,2010,36(4):111-115. |
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| Authors: | LIU Huimin MA Xiaoqun and SUN Xiubang |
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| Institution: | Anhui Meteorological Research Institute, Hefei 230031;Anhui Meteorological Research Institute, Hefei 230031;Anhui Meteorological Research Institute, Hefei 230031 |
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| Abstract: | In this paper,two drought monitoring methods of temperature vegetation dryness index(TVDI) and vegetation supply water index(VSWI) based on temperature/vegetation supply water index(NDVI) were contrasted and analyzed by MODIS data in semi-humid and transitional zones in Anhui Province.The grades of TDVI and VSWI about drought monitoring combining accumulated humidity index were established, which were validated by local soil moisture.TVDI and VSWI and accumulated humidity index have been shown a remarkable ... |
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| Keywords: | vegetation supply water index(VSWI) temperature vegetation dryness index(TVDI) MODIS drought monitoring |
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