搜索结果: 1-15 共查到“RS and GIS”相关记录63条 . 查询时间(0.171 秒)
STUDY ON KARST INFORMATION IDENTIFICATION OF QIANDONGNAN PREFECTURE BASED ON RS AND GIS TECHNOLOGY
Karst Landsat-5 TM Image RS+DEM Slope Karst Rocky Desertification
2018/5/16
Karst area is a pure natural resource base, at the same time, due to the special geological environment; there are droughts and floods alternating with frequent karst collapse, rocky desertification a...
基于RS和GIS的河西走廊风沙灾害风险评估
河西走廊 风沙灾害 评估
2018/4/18
河西走廊位于中国西北干旱、半干旱区，受到周边沙漠和戈壁的影响，风沙灾害问题比较严重。依据灾害系统理论，从致灾因子危险性、孕灾环境脆弱性和承灾体易损性3个方面构建区域灾害风险评估体系和评估模型，对河西走廊风沙灾害风险进行评估。结果表明：（1）高风险地区主要分布在河西走廊内部的沙漠区，如酒泉市、玉门市、金塔县、高台县、临泽县以及武威市的北部地区，约占总面积的10.8%；（2）较高风险的地区主要分布在敦...
Spatial assessment of the change of mountain range farmland use based on rs and gis
Spatial Assessment GIS
2015/8/21
Assessment of the change of farmland use is of great important. After comparing the different ways of the assessment of farmland
use change, a spatial assessment of the change of mountain range farml...
Investigation of the internal structure changes of ulaanbaatar city using rs and gis
Urban internal structure Urban land use CBD
2015/8/20
This paper describes the changes occurred in the internal structure of central part of Ulaanbaatar, the capital city of Mongolia, since
the fall of communism in Mongolia. Currently, Ulaanbaatar is en...
LAND COVER CHANGE AUTOMATIC DETECTION BASED ON PARCEL-KNOWLEDGE INTEGRATED RS WITH GIS
Land Cover Parcel-knowledge Automatic Change Detection Integrated
2015/7/30
Automatic land cover change detection via remotely sensed imagery has a wide application in the area of LUCC
research, nature resource and environment monitoring and protection. Under the condition ...
DETERMINATION AND CHARACTERISATION OF FAULT SYSTEMS AND GEOMORPHOLOGICAL FEATURES BY RS AND GIS TECHNIQUES IN THE WSW PART OF TURKEY
Remote Sensing Geology Geomorphology Western Anatolia Earthquakes DEM/DTM Applications
2015/7/30
This article is aimed to give the first results of the project studying the faults and tectonic style of the southwestern part of Turkey
based on remote sensing techniques. LANDSAT-TM and ASTER sate...
水保监测与应用技术基于RS和GIS的敦煌市沙漠化动态监测
沙漠化 动态监测 敦煌市
2016/12/21
研究敦煌市沙漠化动态变化特征,为敦煌市沙漠化防治和文物保护工作提供理论依据。[方法] 基于遥感和GIS技术,选取2004和2009年的TM和ETM遥感数据进行调查判读。[结果] 敦煌市沙漠化土地面积为1.97×106 hm2,占土地总面积的73.8%;研究期内沙漠化土地总面积减少9 102.59 hm2,年变化率-0.001%;极重度沙漠化向重度、中度和轻度沙漠化转变,沙漠化程度整体减轻。[结论]...
Generation of 3D Model for Urban area using Ikonos and Cartosat-1 Satellite Imageries with RS and GIS Techniques
Digital Elevation Model (DEM) Stereo image Orthoimage 3D city model
2014/12/16
Urban design is a subject that is concerned with the shape, the surface and its physical arrangement of all kinds of urban elements. Although urban design is a practice process and needs much detailed...
Monitoring of bank line erosion of River Ganga, Malda District, and West Bengal: Using RS and GIS compiled with statistical techniques
River Migration banks failure paradigm shift mitigation of disasters
2014/11/26
The creation of regional imbalance, inequalities and differentiation in India, starts with the
physiographic element and ends with economic, and socio-cultural parameters of the
inhabitants/popula...
分析了福州市脆弱生态环境的类型及其表现、成因。通过遥感与GIS技术,提取出能够反映生态环境的指标因子,采用层次分析法获得了各指标因子的权重系数;通过因子的统计特征,确定了各因子脆弱度量化值,得出了生态环境脆弱性综合评价图并进行了分析。利用遥感与GIS手段,对区内生境的差异进行比较,最小比较单元为30 m×30 m。结果表明,福州市分区脆弱程度差异较大、最为脆弱的是福州市沿海3市。通过实地调查数据的...
利用遥感和地理信息系统技术对Landsat ETM+热红外遥感数据进行处理,反演和计算了哈尔滨城区的地面亮温和植被指数。通过剖面分析,研究了城区温度场的空间格局与植被盖度的关系;通过多元回归分析,揭示了城区热岛效应同多个指数的相关关系。结果表明:市内的道外区是热岛效应的主要分布区,道里区、香坊区的情况也比较严重;铁路沿线区域是城区主要的热岛效应地带;植被盖度和地面亮温呈反相关关系;植被和水体区域可...
研究了基于高分辨率卫星遥感影像的公路水毁灾情信息提取模型,通过解决跨软件环境的开发问题,实现了基于遥感与地理信息系统混合编程的公路水毁灾情信息提取系统。使用高分辨率卫星遥感数据形成融合数据,通过分析融合图像的光谱、几何、纹理特征,建立了公路信息提取规则,构建了面向对象的公路信息提取模型。根据水在近红外和中红外波长范围内反射率极低的特性,同时考虑不同环境背景造成的信息提取复杂性,研究了具有自适应特点...
基于RS和GIS技术的松花江哈尔滨段流域面源污染特征分析
松花江流域 RS和GIS技术 面源污染 土地利用类型
2013/11/11
随着松花江流域的点源污染得到了有效的控制和管理,该流域哈尔滨段的面源污染日益突出,已成为主要污染物来源.为了考察不同用地类型面源污染物产出量,应用RS和GIS技术对该区域的TM影像和DEM数据进行了处理分析.结果表明:该流域的土地利用类型主要有:耕地面积为14 918.29 km2,占44.37%;盐碱地和草地面积为13 886.12 km2,占41.3%;建筑用地面积为2 868.8 km2,占...
基于RS和GIS技术的松花江哈尔滨段流域面源污染特征分析
松花江流域 RS和GIS技术 面源污染 土地利用类型
2013/9/23
随着松花江流域的点源污染得到了有效的控制和管理,该流域哈尔滨段的面源污染日益突出,已成为主要污染物来源.为了考察不同用地类型面源污染物产出量,应用RS和GIS技术对该区域的TM影像和DEM数据进行了处理分析.结果表明:该流域的土地利用类型主要有:耕地面积为14 918.29 km2,占44.37%;盐碱地和草地面积为13 886.12 km2,占41.3%;建筑用地面积为2 868.8 km2,占...