During the process of applying remote sensing image data, how to save the mass remote sensing image data of different times and use them effectively is an important problem. Researches show that the traditional large commercial relational database cannot storage the mass remote sensing data effectively and also cannot support unlimited data storage. In this paper, we combine the file system, re...

policy making and planning for agricultural development and conditional improvement of rural and farmers requires accurate and real time information and statistics. in iran, accessing relevant agriculture statistics is mainly gained through expert knowledge and traditional methods. studies show that these have a high percent of error. this research has been aimed so to, by using new methods inc...

Remote sensing has proven to be a powerful tool for the monitoring of the Earth’s surface to improve our perception of our surroundings has led to unprecedented developments in sensor and information technologies. However, technologies for effective use of the data and for extracting useful information from the data of Remote sensing are still very limited since no single sensor combines the op...

introduction worldwide salinization and degradation of soil is a widespread and important environmental challenge. soil salinization is one of the most common land degradation processes in arid and semi-arid regions, where evaporation exceeds over precipitation. under arid climatic conditions, soluble salts are accumulated in the soil, influencing soil properties and environment with ultimate d...

This study used archived remote sensing images to depict the history of changes in soil salinity in the Hetao Irrigation District in Inner Mongolia, China, with the purpose of linking these changes with land and water management practices and to draw lessons for salinity control. Most data came from LANDSAT satellite images taken in 1973, 1977, 1988, 1991, 1996, 2001, and 2006. In these years s...

abstract this research was conducted in the pegah - sorkh sub-catchments area, a semi-arid region in sw iran, using geographic information systems (gis) and remote sensing (rs) to compare the erosion potential method (epm) and modified pacific southwest interagency committee (mpsiac) models in erosion-potential mapping and sediment yield assessment. the study area with approximately 4600 ha sho...

satellite data have been used for temperature modeling both in urban areas and water. this paperstudies viability of aster satellite images that provide high spatial and spectral resolution to model watersurface temperature, as a fundamental water quality parameter. this study is focused on dez dam reservoirresiding in khuzestan province, south west of iran. after the image corrections required...