Digital Extraction of Altitudinal Belt Spectra in the West Kunlun Mountains Using SPOT-VGT NDVI and SRTM DEM

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > Journal of Mountain Science > Journal of Mountain Science-2010 > Vol7 No.2

	Digital Extraction of Altitudinal Belt Spectra in the West Kunlun Mountains Using SPOT-VGT NDVI and SRTM DEM
	Xiao Fei ; Ling Feng ; Du Yun ; Xue Huaiping ; Wu Shengjun
刊名	JOURNAL OF MOUNTAIN SCIENCE
	2010-06
卷号	7 期号:2 页码:133–145
关键词	Altitudinal belt spectra Kunlun Mountains NDVI Digital extraction
ISSN号	1672-6316
通讯作者	Xiao, F
英文摘要	In this paper, a digital identification method for the extraction of altitudinal belt spectra of montane natural belts is presented. Acquiring the sequential spectra of digital altitudinal belts in mountains at an acceptable temporal frequency and over a large area requires extensive time and work if traditional methods of field investigation are to be used. Such being the case, often the altitudinal belts of a whole mountain or the belts at a regional scale are represented by single points. However, single points obviously cannot accurately reflect the spatial variety of altitudinal belts. In this context, a digital method was developed to extract the spectra of altitudinal belts from remote sensing data and SRTM DEM in the West Kunlun Mountains. By means of the 1km resolution SPOT-4 vegetation 10-day composite NDVI, the horizontal distribution of altitudinal belts were extracted through supervised classification, with a total classification accuracy of 72.23%. Then, a way of twice-scan was used to realize the automatic transition of horizontal maps to vertical belts. The classification results of remote-sensing data could thus be transformed automatically to sequential spectra of digital altitudinal belts. The upper and lower lines of the altitudinal belts were then extracted by vertical scanning of the belts. Relationships between the altitudinal belts based on the montane natural zones concerning vegetation types and the geomorphological altitudinal belts were also discussed. As a tentative method, the digital extraction method presented here is effective at digitally identifying altitudinal belts, and could be helpful in rapid information extraction over large-scale areas.
语种	英语
公开日期	2013-08-12
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/5891]
专题	成都山地灾害与环境研究所_Journal of Mountain Science _Journal of Mountain Science-2010_Vol7 No.2
推荐引用方式 GB/T 7714	Xiao Fei,Ling Feng,Du Yun,et al. Digital Extraction of Altitudinal Belt Spectra in the West Kunlun Mountains Using SPOT-VGT NDVI and SRTM DEM[J]. JOURNAL OF MOUNTAIN SCIENCE,2010,7(2):133–145.
APA	Xiao Fei,Ling Feng,Du Yun,Xue Huaiping,&Wu Shengjun.(2010).Digital Extraction of Altitudinal Belt Spectra in the West Kunlun Mountains Using SPOT-VGT NDVI and SRTM DEM.JOURNAL OF MOUNTAIN SCIENCE,7(2),133–145.
MLA	Xiao Fei,et al."Digital Extraction of Altitudinal Belt Spectra in the West Kunlun Mountains Using SPOT-VGT NDVI and SRTM DEM".JOURNAL OF MOUNTAIN SCIENCE 7.2(2010):133–145.