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为揭示东部高潜水位矿区地表水体的时空演变规律,该文以兖州煤田为研究区,在比较改进归一化差异水体指数法、单波段阈值法、谱间关系法、K-T变换4种水体提取方法的精度及优缺点基础上,采用基于阈值分割的改进的归一化差异水体指数法提取了研究区1990-2014年的水体信息并分析了其时空变化特征。研究结果表明:从1990-2009年,兖州煤田地表水域面积增加了1 696.14 hm2,且2001-2005年水...
The accuracy of snow cover information extraction in remote-sensing images dependent on a variety of factors, especially in mountain area with complex terrain. This paper aims at analyzing the accurac...
This study aims to determine the accuracy level at which different forms of land degradation can be mapped from medium-resolution satellite data, and to assess how accurately degraded land can be dete...
GLACIER CHANGE ESTIMATION USING LANDSAT TM DATA     ecosystems  land cover  glacier  spatially and temporally changes       font style='font-size:12px;'> 2015/8/24
The Mongolian territory includes various ecosystems as, taiga forest, high mountains, width steppe and gobi desert, through North to South. The glacier is most important land cover type to keep the ...
East Oweinat district is located in the south Western Desert of Egypt. It is mainly occupied by outcrops of Archean to Early Proterozoic rocks of high to medium metamorphic grade and younger granitoi...
This paper presents a comparison between L-band HH JERS-1 SAR and Landsat TM data for land cover assessment in an Amazonian test site. For this, a study area located in the south of Rondo坣ia State, w...
The Sivas Basin is one of the most well known major Tertiary basins of the Anatolia connected with the evolution of the Neotethyan Ocean. Central Anatolian Thrust Belt contains realms of this ocea...
In this study using the Idrisi software system, a methodology for jointly analyzing and interpreting multi-spectral images and DEMs for extracting structural-geology features is given. In analyzing a...
The aim of this study is to validate the Spectral Angle Mapper (SAM) algorithm for geological mapping in Central Jebilet Morocco and compare the results between high and medium spatial resolution sen...
Information about current land-cover in forests is important for management and conservation of these areas. Up to the last decade traditional per pixel classification algorithms were used to be util...
Gene flow is defined as the movement of genes between populations and is a naturally occurring phenomenon among sexually compatible individuals. Crops have exchanged genes with their wild and weedy ...
This paper discusses the use of a Landsat-TM time series for monitoring erosion features caused by the action of independent miners (garimpeiros) in the search for gold. Five free-cloud Landsat-TM sc...
Minnaert constants (K) were derived from non atmospherically corrected, high-sun elevation angle Landsat TM data (8 June 1996 and 13 July 1997) and DEMs at 30x30 m spatial resolution using the IDL p...
A novel approach in image classification to bedrock mapping is applied to a 1:100 000 scale map area of the Meta Incognita Peninsula Baffin Island, Nunavut, Canada to support mapping of the Paleopro...
Vegetation in Nigeria, whether on topographical sheets or thematic maps, has generally been mapped from aerial photographs. But aerial photographs are not generally available beyond the 70s in most p...

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