南水北调与水利科技Issue(3)：33-37,5.DOI:10.13476/j.cnki.nsbdqk.2014.03.007
基于MODIS的土壤含水量模拟及其影响因素分析
Simulation of Soil Moisture and Analysis of Influence Factors Based on MODIS Data
摘要
Abstract
The day2and2night ground surface temperature difference and reflectivity values were obtained in Guanzhong area of Shannxi Province based on the three2phase Terro2M ODIS1B data in spring of 2009. In combination w ith the measured soil mois2 ture data in the meteorological stations at the same time, the thermal inertia method was used to develop the ATI2SWC experi2 encemodel.TheresultsshowedthatthemodelofMarch3hasthehighestprecisionwhilethemodelofApril28haslowestpre2 cision. Further studies suggested that NDVI has significant effects on model precision, thus the thermal inertia method had high2 er precision on monitoring soil moisture of bare land. Based on the DEM data, the impacts of geology and geomorphology, groundwater,and NDVI on soil moisture in Guanzhong area were analyzed. The research results can provide reference on drought monitoring in Guanzhong area.关键词
土壤含水量/热惯量/MODIS/植被指数/DEMKey words
soil-moisture/thermal-inertia/M-ODIS/NDVI/DEM分类
天文与地球科学引用本文复制引用
张静..基于MODIS的土壤含水量模拟及其影响因素分析[J].南水北调与水利科技,2014,(3):33-37,5.基金项目
西安科技大学培育基金(2009014) （2009014）
