基于MODIS的郑州市土壤水分反演  

Soil Moisture Retrieval in Zhengzhou City Based on MODIS

作　　者：高攀 王纪军 宋轩 GAO Pan;WANG Ji-jun;SONG Xuan(CMA/Henan Key Laboratory of Agro-meteorological Safeguard and Applied Technique, Zhengzhou,Henan 450003;School of Water Conservancy and Environment, Zhengzhou University, Zhengzhou, Henan 450000)

机构地区：[1]中国气象局/河南省农业气象保障与应用技术重点开放实验室,河南郑州450003 [2]郑州大学水利与环境学院,河南郑州450000

出　　处：《安徽农业科学》2019年第5期6-9,共4页Journal of Anhui Agricultural Sciences

基　　金：中国气象局农业气象保障与应用技术重点开放实验室开放研究基金项目(AMF201610)

摘　　要：为了较好地研究郑州市土壤水分的空间分布及动态变化特征,分别在高植被覆盖度期采用温度植被干旱指数模型,在低植被覆盖度期采用表观热惯量模型反演郑州市土壤水分,结果表明,郑州市土壤水分的空间分布,北部区域高于南部,西部高于东部,海拔高的山地高于平地,山区的垂直变化明显;使用此种方法获取的地表土壤水分信息可以表征地表土壤水分的空间分布趋势。In order to study the spatial distribution and dynamic change characteristics of soil moisture in Zhengzhou, the models of temperature and vegetation drought index were adopted in the period of high vegetation coverage, and the apparent thermal inertia model was used to retrieve the soil moisture of Zhengzhou City in the period of low vegetation coverage. The results showed that the spatial distribution of soil moisture in Zhengzhou City was higher than the south in the northern part and higher than the east in the west part. The elevation in the mountainous area was higher than that in the plain. The vertical variation of the mountainous area was obvious. The surface soil moisture information can be used to characterize the spatial distribution of surface soil moisture distribution.

关 键 词：遥感 MODIS数据 温度植被干旱指数 热惯量 土壤水分反演 

分 类 号：S152.7[农业科学—土壤学]