نتایج جستجو برای: land sat satellite image
تعداد نتایج: 563637 فیلتر نتایج به سال:
This proceeding describes the scientific approach and a preliminary validation of the visible and near infrared land Bidirectional Reflectance Distribution Function (BRDF) module for RTTOV version 11. The module provides global (at a spatial resolution of 0.1°) and monthly means land surface BRDF for any instrument with channel’s central wavelength between 0.4 and 2.5 μm. It is based on a recon...
Digital base maps generated from various source imagery, such as satellite imagery, airborne data, and aerial photograph, are becoming very useful and efficient. Digital map can provide detailed topographic, land-use and land-cover information on earth. With the growing requirements of automatically correcting raw data and generating digital maps, the technique which can be used for that purpos...
Information about urban land cover and land use changes concerns many groups of people, such as the local governors, urban planners, environmentalists and decision makers. They need up-to-date change information to manage the land effectively and revise development plans. A case study was conducted over Beijing, China. Two multispectral satellite images (ASTER and SPOT PAN) collected in 2001 an...
Fractal geometry has sparked considerable interest for analyzing remote sensing imageries. Fractal models have been used in several image processing and pattern recognition applications such as texture analysis and classification. Applications of fractal geometry in remote sensing rely heavily on estimation of the fractal dimension (D). When land areas are clustered into groups of similar land ...
Remote sensing in urban areas has been a challenger for quite some time due to their complexity and fragment with combination of man-made features and natural features. High-resolution satellite images and airborne laser altimetry data offered potential possibilities for feature extraction and spatial modelling in urban areas. Land use classification of urban areas may become possible by exploi...
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 detected from multi-temporal satellite images. Land degradation in the form of salinization and waterlogging in Tongyu County, western Jilin Province of Northeast China was mapped from Landsat TM and A...
This paper is a brief survey of advance technological aspects of Digital Image Processing which are applied to remote sensing images obtained from various satellite sensors. In remote sensing, the image processing techniques can be categories in to four main processing stages: Image pre-processing, Enhancement, Transformation and Classification. Image pre-processing is the initial processing wh...
There have been different indices identified for desertification. Among these is technogenic desertification index which seems much more efficient. In this study, some of technogenic desertification indices were studied and evaluated. First land use maps of the region were taken from IRS-PAN satellite image and aerial photos analysis. After evaluating the area of different uses, lands that had ...
The tropical rain forests in Indonesia are affected by socio-economic and ecological factors and processes that result in an increasing destabilisation of the rainforest margins. Optical satellite data have been explored to document changes in land cover throughout the past 30 years and to monitor the current status and dynamics of land cover and land cover conversion for an investigation area ...
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