Title :
Study on the Spatial Distribution Law of NDVI in Sichuan Province Based on RS and GIS
Author :
Cheng, Wu-Xue ; Yang, Cun-Jian ; Jie-ming Zhou ; Zhou, Wan-Cun
Author_Institution :
Inst. of Mountain Hazards & Environ., CAS, Chengdu, China
Abstract :
This paper analyzed the spatial distribution law of NDVI in Sichuan province based on the GIS and RS technology. Firstly, the value of NDVI in Sichuan province was calculated based on the MODIS raster data; Secondly, the DEM(digital elevation model) was generated by the contour; Thirdly, the classification data of geography was extracted based on the GIS technology, such as slope, aspect , altitude and the spatial distribution law of NDVI by using the spatial analysis functions of GIS, include the distribution law in different altitude, slope degree and aspect. At last, the conclusion of the spatial distribution law of NDVI was drawn and the improve methods and suggestions to the regions of low value of NDVI were promoted in the article.
Keywords :
digital elevation models; geographic information systems; DEM; GIS; NDVI; RS; Sichuan province; digital elevation model; geography classification data; normalized difference vegetation index; spatial analysis functions; spatial distribution law; Content addressable storage; Data mining; Educational technology; Geographic Information Systems; Geography; Hazards; MODIS; Monitoring; Paper technology; Vegetation mapping;
Conference_Titel :
Image and Signal Processing, 2009. CISP '09. 2nd International Congress on
Conference_Location :
Tianjin
Print_ISBN :
978-1-4244-4129-7
Electronic_ISBN :
978-1-4244-4131-0
DOI :
10.1109/CISP.2009.5304657
