水资源与水工程学报

文章摘要

王军，李和平，牛海，苗澍，鹿海员.典型草原地区地表温度的反演与敏感性分析Journal of Water Resources and Water Engineering[J].,2014,25(5):102-105

典型草原地区地表温度的反演与敏感性分析

Analysis of inversion and sensitivity of land surface temperature in typical grassland region

DOI：10.11705/j.issn.1672-643X.2014.05.023

英文关键词: land surface temperature mono-window algorithm sensitivity analysis typical grassland

基金项目:水利部公益性行业科研专项（201001039）；水利部科技推广计划项目（TG1202，TG1401）；内蒙古自治区新增“四个千万亩”节水灌溉工程科技支撑项目（20121036）

Author Name	Affiliation
WANG Jun^1,2, LI Heping^1,2, NIU Hai³, MIAO Shu^1,2, LU Haiyuan^1,2	（1.水利部牧区水利科学研究所，呼和浩特 010020； 2.中国水利水电科学研究院，北京 100038； 3.鄂尔多斯市工业与城市供水办公室，鄂尔多斯 017000）

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中文摘要:

准确分析地表温度变化规律，对研究草原地区水热变化及旱情监测具有重要意义。基于此利用单窗算法反演了典型草原地区不同土地利用类型的地表温度。结果表明：卫星过境时刻流域地表温度的平均值在37℃左右；与其它土地利用类型相比，水体及下垫面含水量较高的地区地表温度相对较低。为进一步探究归一化植被指数、大气平均作用温度变化对地表温度的影响，本文通过设置两个参数不同的变化情景，分析地表温度对两者变化的敏感性。结果表明：大气平均作用温度大小变化对地表温度影响更为直接，归一化植被指数对地表温度相对误差的影响较低。

英文摘要:

The analysis of the change rule of land surface temperature has important significance for the study of hydrothermal change and the drought monitoring in grassland region. The paper inversed the land surface temperature of different land use types based on Mono-window Algorithm on the typical grassland. The results show that the average value of land surface temperature is about 37℃ at the satellite transit time. Compared with the other land use types, the land surface temperature is lower in water body and the wet region.The paper analyzed the sensibility of land surface temperature on the change of two factors by setting up the different change scenarios of two parameters in order to probe the influence of NDVI and atmospheric average temperature on land surface temperature.The result shows that the change of atmospheric average temperature has greater impact on the land surface temperature, and the influence of NDVI on relative error of surface temperature is lower.

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