| Dynamic Drought Monitoring in Guangxi Using Revised Temperature Vegetation Dryness Index |
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| 引用本文： | LU Yuan TAO Heping WU Hua. Dynamic Drought Monitoring in Guangxi Using Revised Temperature Vegetation Dryness Index[J]. 武汉大学学报:自然科学英文版, 2007, 12(4): 663-668. DOI: 10.1007/s11859-006-0315-7 |
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| 作者姓名： | LU Yuan TAO Heping WU Hua |
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| 作者单位： | [1]Key Laboratory of Mountain Hazards and Surface Process, Chinese Academy of Sciences / Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, Sichuan, China [2]Faculty of Resources and Environmental Sciences, Guangxi Teachers Education University, Nanning 530001, Guangxi, China |
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| 基金项目： | Supported by the National Natural Science Foundation of China （40461001 ） |
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| 摘 要： | Moderate resolution imaging spectroradiometer （MODIS） data are very suitable for vast extent, long term and dynamic drought monitoring for its high temporal resolution, high spectral resolution and moderate spatial resolution. The composite Enhanced Vegetation Index （EVI） and composite land surface temperature （Ts） obtained from MODIS data MOD11A2 and MOD13A2 were used to construct the EVI-Ts space. And Temperature Vegetation Dryness Index （TVDI） was calculated to evaluate the agriculture drought in Guangxi province, China in October of 2006. The results showed that the drought area in Guangxi was evidently increasing and continuously deteriorating from the middle of September to the middle of November. The TVDI, coming from the EVI-Ts space, could effectively indicate the spatial distribution and temporal evolution of drought, so that it could provide a strong technical support for the forecasting agricultural drought in south China.
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| 关 键 词： | 中分辨率成像分光辐射度计 植被指数 地表温度 温度植被干旱指数 动态干旱监测 广西 |
| 文章编号： | 1007-1202（2007）04-0663-06 |
| 收稿时间： | 2006-09-28 |
| 修稿时间： | 2006-09-28 |
Dynamic drought monitoring in Guangxi using revised temperature vegetation dryness index |
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| Lu Yuan,Tao Heping,Wu Hua. Dynamic drought monitoring in Guangxi using revised temperature vegetation dryness index[J]. Wuhan University Journal of Natural Sciences, 2007, 12(4): 663-668. DOI: 10.1007/s11859-006-0315-7 |
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| Authors: | Lu Yuan Tao Heping Wu Hua |
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| Affiliation: | (1) Key Laboratory of Mountain Hazards and Surface Process, Chinese Academy of Sciences, Chengdu, 610041, Sichuan, China;(2) Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, 610041, Sichuan, China;(3) Faculty of Resources and Environmental Sciences, Guangxi Teachers Education University, Nanning, 530001, Guangxi, China |
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| Abstract: | Moderate resolution imaging spectroradiometer(MODIS) data are very suitable for vast extent,long term and dynamic drought monitoring for its high temporal resolution,high spectral resolution and moderate spatial resolution. The composite Enhanced Vegeta-tion Index(EVI) and composite land surface temperature(Ts) ob-tained from MODIS data MOD11A2 and MOD13A2 were used to construct the EVI-Ts space. And Temperature Vegetation Dryness Index(TVDI) was calculated to evaluate the agriculture drought in Guangxi province,China in October of 2006. The results showed that the drought area in Guangxi was evidently increasing and con-tinuously deteriorating from the middle of September to the middle of November. The TVDI,coming from the EVI-Ts space,could effectively indicate the spatial distribution and temporal evolution of drought,so that it could provide a strong technical support for the forecasting agricultural drought in south China. |
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| Keywords: | moderate resolution imaging spectroradiometer(MODIS) enhanced vegetation index land surface temperature temperature vegetation dryness index |
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