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基于微波遥感的土壤湿度异常监测
引用本文:马媛,曹月娥,塔西甫拉提·特依拜,吕光辉. 基于微波遥感的土壤湿度异常监测[J]. 兰州大学学报(自然科学版), 2010, 46(1)
作者姓名:马媛  曹月娥  塔西甫拉提·特依拜  吕光辉
作者单位:新疆大学资源与环境科学学院新疆绿洲生态重点实验室,乌鲁木齐,830046
基金项目:新疆大学博士启动基金项目(BS080125);;新疆自治区高校科研计划青年基金项目(XJEDU2008S02);;新疆绿洲生态重点实验室开放课题
摘    要:提出地表微波极化差异指数,并利用AMSR-E星载被动微波遥感亮温数据,统计分析了2002-2006年7月上旬新疆微波极化差异指数旬平均分布;通过计算归一化距平,反演得到新疆7月上旬土壤湿度动态变化分布图。结果表明:利用微波极化差异指数能够较好地表征土壤湿度时空异常变化,为定量监测土壤相对干湿程度提供了一种有效便捷的方法。

关 键 词:微波遥感  土壤湿度  微波极化差异指数  AMSR-E  

Monitoring of soil moisture anomaly based on microwave remote sensing
MA Yuan,CAO Yue-e,TASHPOLAT·Tiyip,L Guang-hui. Monitoring of soil moisture anomaly based on microwave remote sensing[J]. Journal of Lanzhou University(Natural Science), 2010, 46(1)
Authors:MA Yuan  CAO Yue-e  TASHPOLAT·Tiyip  L Guang-hui
Affiliation:Key Laboratory of Oasis Ecology of Xinjiang/a>;School of Resources and Environmental Sciences/a>;Xinjiang University/a>;Urumqi 830046/a>;China
Abstract:A microwave polarization difference index was provided and, by the microwave radiation brightness temperature from the advanced microwave scanning radiometer for earth observing system (AMSR-E),the ten-day average and normalized anomaly (△MPDI) of later-July from 2002 to 2006 were analyzed statistically, and the mapping of land surface moisture given. The study shows that the microwave polarization difference index can monitor anomalous variability of soil moisture, and it provides an effective and simple approach for monitoring the relative degree of arid and humid soil moisture.
Keywords:microwave remote sensing  soil moisture  microwave polarization difference index  AMSR-E  
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