南京信息工程大学学报2013，Vol.5Issue(1)：26-33,8.
基于遥感数据的宁夏地区土壤水分反演方法比较
Comparison of soil moisture inversion methods with MODIS data in Ningxia
摘要
Abstract
MOD11A2 and MOD13A2 (data of MODIS) are used to get surface temperature (TS),temperature difference between day and night (DST),normalized difference vegetation index (NDVI),enhanced vegetation index (EVI) to construct characteristic space of TS-NDVI,TS-EVI,DST-NDVI and DST-EVI in April (8th,18th and 28th),July (8th,18th and 28th) and October (8th,18th and 28th) of 2005 in Ningxia region.Temperature Vegetation Drought Index (TVDI),Temperature Enhanced Drought Index (TEDI),Difference Temperature Vegetation Drought Index (DTVDI) and Difference Temperature Enhanced Drought Index (DTEDI) are established according to characteristic space of TS-NDVI,TS-EVI,DST-NDVI and DST-EVI.These drought indexes are used as monitoring index to retrieve soil moisture in April,July and October of 2005 in Ningxia region.Correlation analysis between observed 10 cm soil moisture and retrieved data is conducted,and the result shows that DTEDI is best,and DTVDI is better than TVDI and TEDI in retrieval results of soil moisture in Ningxia region.关键词
土壤水分/遥感/干旱指数/宁夏Key words
soil moisture / remote sensing / drought index / Ningxia分类
信息技术与安全科学引用本文复制引用
王连喜,李兴阳,余凌翔,运方华,耿秀华,李琪..基于遥感数据的宁夏地区土壤水分反演方法比较[J].南京信息工程大学学报,2013,5(1):26-33,8.基金项目
公益性行业(气象)科研专项(GYHY201106024 （气象）
GYHY200806022) （）
