| 利用温度植被干旱指数反演伊犁博州地区土壤湿度 |
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| 引用本文： | 肖继东,姚坤,师庆东. 利用温度植被干旱指数反演伊犁博州地区土壤湿度[J]. 沙漠与绿洲气象(新疆气象), 2009, 3(3): 12-16 |
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| 作者姓名： | 肖继东 姚坤 师庆东 |
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| 作者单位： | 肖继东(新疆生态遥感中心,新疆,乌鲁木齐,830002;新疆大学绿洲生态重点实验室,新疆,乌鲁木齐,830046;新疆师范大学生命与环境科学学院,新疆,乌鲁木齐,830053);姚坤(新疆生态遥感中心,新疆,乌鲁木齐,830002;新疆大学绿洲生态重点实验室,新疆,乌鲁木齐,830046);师庆东,逄淑女,师庆三(新疆大学绿洲生态重点实验室,新疆,乌鲁木齐,830046) |
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| 基金项目： | 新疆大学绿洲生态教育部重点实验室研究基金计划项目，中国沙漠基金 |
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| 摘 要： | 利用MODIS合成产品数据MOD11A2和MOD13A2获取的归一化植被指数（NDVI）和陆地表面温度（LST）构建Ts—NDVI特征空间，并把该特征空间计算的温度植被干旱指数（TVDI）作为土壤湿度指标。利用该指标反演伊犁博州地区6～8月3个月份每8d的土壤湿度。然后将土壤湿度分为5级，进而得到该时段伊犁博州地区土壤湿度空间分布特征。
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| 关 键 词： | 归一化植被指数 地表温度 温度植被干旱指数 |
Soil Moisture of Yili and Bozhou Retrieved by Temperature Vegetation Dryness Index |
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| Affiliation: | XIAO Ji-dong, YAO Kun, SHI Qing-dong, PANG Shu-nv, SHI Qing-san (1.Xinjiang ecology and Remote sensing Center, Urumqi 830002, China; 2.Laboratory for Oasisand ecology, Xinjiang University, Urumqi 830002, China; 3.College of life and environmentscience, Xinjiang normal University, Urumqi 830002, China) |
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| Abstract: | Ts-NDVI feature space was constructed by combining 8-day composite MODIS temperature product MOD11A2 with 16-day composite MODIS NDVI product MOD13A2. Temperature Vegetation Dryness Index （TVDI） which is one of indicators of soil moisture was obtained. Every 8-day soil moisture data from June to August in Yili and Bozhou were retrieved by using the TVDL Soil moisture was classified as 5 levels, and then the distribution of soil moisture in Yili and Bozhou at this period was obtained. |
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| Keywords: | NDVI Ts TVDI |
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