نتایج جستجو برای: land sat satellite images dated 1988
تعداد نتایج: 493987 فیلتر نتایج به سال:
Differential SAR Interferometry (D-InSAR) is an effective tool in monitoring land subsidence because of its greater coverage area and better resolution of height change. A series of Japanese Earth Resources Satallite-1 (JERS-1) images from 1992 to 1998 has been used in monitoring the mine subsidence in the test site of this study, one of the important coal mining areas in China. D-InSAR procedu...
Land use/cover change is one of the main factors in environmental changes. The changes directly affect the value of ecosystem services. The purpose of this research is to evaluate the effect of land use/land cover change in the Kashkan area on its ecosystem services. This research was carried out in three stages, including the analysis of land cover changes, prediction of changes, and carbon st...
Engineers in geomatics are now using high tech technologies which are based on satellite systems. GPS and remote sensing technologies offer great advantages for surveyors. One of the areas where the surveyors are involved is a Land Consolidation project. These projects deal with improving of productivity and working conditions in rural areas, production of reconstruction plans for rural settlem...
Land subsidence is one of the environmental hazards that has been less well-regarded by human societies due to lower human casualties. However, the earth subsidence causes irreparable damage to the urban areas and adjacent plains over time. In this study, Permanent Scatterer (PS) method has been used to monitor land subsidence in the region in hamadan proviance and its adjacent plains in west o...
The proposed technique is used classify the satellite image into barren land, vegetation area, building area and road area. Initially, the satellite image is pre-processed and then is then segmented to have segments of barren land, vegetation area, building area and road area. The featuresof the segmented area are extracted and then final classification is carried out using fuzzy rule classifie...
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...
Given the importance of snow, it seems necessary to predict its resultant runoff for optimized usage. In addition, due to snowbound regions cloudiness in winter season, the notice of snow cover area (SCA) using satellite images is difficult. Hence, to help better water resources managing in mountainous areas using supplementary methods for simulating the SCA is necessary. As a case study, Horo-...
The Land use/ Land cover change in urban areas and the difference of the earth surface after the flood can be detected from remote sensing images by performing image differencing algorithms. Although many algorithms were proposed to generate difference images, the results are inconsistent. In order to integrate the merits of difference algorithms, fusion techniques are used to merge multiple di...
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