搜索结果: 1-15 共查到“遥感信息工程 ETM”相关记录15条 . 查询时间(0.075 秒)
ANALYSIS OF RELATIONSHIP BETWEEN URBAN HEAT ISLAND EFFECT AND LAND USE/COVER TYPE USING LANDSAT 7 ETM+ AND LANDSAT 8 OLI IMAGES
UHI Thermal Remote Sensing Landsat 8 OLI/TIRS MODIS Change Detection LU/LC
2016/12/1
The main objectives of this study are (i) to calculate Land Surface Temperature (LST) from Landsat imageries, (ii) to determine the UHI effects from Landsat 7 ETM+ (June 5, 2001) and Landsat 8 OLI (Ju...
A COMPARISON OF SPECTRAL MIXTURE ANALYSIS METHODS FOR URBAN LANDSCAPE USING LANDSAT ETM+ DATA:LOS ANGELES,CA
linear spectral mixture analysis multiple endmember spectral mixture analysis urban landscape spectral normalization Landsat ETM+ RMSE
2015/12/31
Although spectral mixture analysis has been widely used for mapping the abundances of physical components of urban surface with moderate spatial resolution satellite imagery recently, the spectral het...
Investigation on the potential of digital Landsat ETM+ data for soil salinity mapping
Landsat ETM+ Soil salinity Electrical Conductivity (EC) Stepwise regression Digital number(DN) Image enhancement Lout plain Iran
2015/9/28
In order to evaluate the potential of satellite data in classification of saline soils, Enhanced Thematic Mapper (ETM+) subscene of northern part of Lout Plain, Iran dated July 2002 was analyzed quali...
APPLICATION OF ETM+ DATA FOR ESTIMATING RANGELANDS COVER PERCENTAGE
ETM+ Vegetation indices Fusion Percentage vegetation cover Correlation analysis Stepwise regression
2015/5/27
The major land cover in Iran is rangeland, so it is not possible to assess the vegetation cover of these vast areas through field work. During the recent years, many researchers have used various sate...
INTERPRETATION OF TROPICAL VEGETATION USING LANDSAT ETM+ IMAGERY
Forestry Vegetation Interpretation Monitoring Landsat Imagery
2015/5/27
Monitoring of tropical forest is important as it plays a vital role in Global biodiversity and terrestrial carbon dynamics. Remote sensing can be effectively used to monitor the tropical vegetation. H...
FIELD EVAPOTRANSPIRATION ESTIMATION IN CENTRAL LUZON, PHILIPPINES USING DIFFERENT SENSORS: LANDSAT 7 ETM+, TERRA MODIS AND ASTER
FIELD EVAPOTRANSPIRATION ESTIMATION CENTRAL LUZON PHILIPPINES DIFFERENT SENSORS LANDSAT 7 ETM+ TERRA MODIS ASTER
2015/3/13
FIELD EVAPOTRANSPIRATION ESTIMATION IN CENTRAL LUZON, PHILIPPINES USING DIFFERENT SENSORS: LANDSAT 7 ETM+, TERRA MODIS AND ASTER.
INTEGRATION OF LIDAR AND LANDSAT ETM+ DATA
regression kriging cokriging sampling spatial model geostatistics
2015/3/10
Lidar data provide accurate measurements of forest canopy structure in the vertical plane however current lidar sensors have limited coverage in the horizontal plane. Landsat data provide extensive co...
INTEGRATION OF LIDAR, LANDSAT ETM+ AND FOREST INVENTORY DATA FOR REGIONAL FOREST MAPPING
Lidar Forest Inventory SLICER LVIS VCL
2014/12/22
Recent work has established the utility of waveform sampling lidar for predicting forest structural attributes. Nevertheless, serious obstacles to its wide-spread use still exist. They include the lac...
Land Use and Land Cover Classification from ETM Sensor Data : A Case Study from Tamakoshi River Basin of Nepal
Land use land cover Land sat supervised
2014/12/16
The mountain watershed of Nepal is highly rugged, inaccessible and difficult for acquiring field data. The application of ETM sensor Data Sat satellite image of 30 meter pixel resolutions has been use...
以胶州湾及周边海岸带为研究区，采用Landsat 7 ETM+数据，提出一种基于à trous小波变换的全色图像和多光谱图像融合改进算法。对全色图像和多光谱图像进行适当层数的小波分解，多光谱图像的低频部分采用全色图像和其低频分量的比来调制； 最高分解层外的其余分解层采用多光谱图像和全色图像在该层分解系数的加权和，加权系数由局部区域能量比来确定； 最高分解层则采用绝对值最大准则。实验表明，该方法得到...
基于TM/ETM+和MODIS的漓江流域生态环境遥感动态监测
漓江 生态环境 动态监测
2009/11/23
为调查漓江流域近30 a来的生态环境变化，开展了基于TM/ETM+和MODIS遥感长、短周期结合的动态监测研究。通过对3期
Landsat-5/7 TM/ETM+遥感影像的信息提取、模式识别和实际调查，发现造成漓江上游生态环境退化的主要原因与漓江水源林遭人
为破坏、城市化扩展和水质污染等因素有关。通过对MODIS-NDVI和水体反射波谱分析，初步探明了流域区植被总量的季节变化规律
和漓江水体...
利用Landsat ETM+分析城市热岛与下垫面的空间分布关系
城市热岛 下垫面 热红外遥感
2009/11/20
采用数理统计与空间统计相结合的方法，利用Landsat ETM+数据对北京、上海、沈阳和武汉等4个大城市的夏季城市热岛相对强度与城市下垫面的空间分布关系进行对比研究。用混合像元线性光谱分解方法提取的城市植被覆盖度与不透水面表征城市下垫面；用城市地表亮温与水体亮温差值表征城市热岛相对强度。结果显示，4个城市的植被覆盖、不透水面与热岛强度的分布呈较强的空间正自相关，并且存在较为一致的自相关范围，该范围...
基于ETM+遥感数据的滨海湿地信息提取研究
非监督分类 知识规则 信息提取
2009/7/21
以江苏省典型滨海湿地为研究对象，利用2005年5月份的Landsat7 ETM+图像数据，在湿地特征及其遥感图像表征分析的基础上，逐步提高湿地信息的提取精度，通过对多光谱遥感图像特征向量的分析，总结出一些湿地信息提取的规则和方法。在滨海湿地光谱特征分析的基础上，首先对研究区的图像进行了非监督分类，进而利用湿地的光谱相应特征、纹理特征、主成分变换、归一化差异水体指数等特征和相应的知识规则，得到用于优...
ETM数据的几何校正
ETM 几何校正 基准矩阵
2008/12/31
该文对即将发射的Landsat-6 ETM仪器数据的几何校正方法进行论述.文中采用基准
矩阵运算、高频矩阵补偿与三次样条函数重采样算法大大简化处理运算.模拟试验结果证明
图象内部几何精度可达一个象元之内.