Mapping of Salinity Hazards in Mond Region Using RS and GIS
|Category||GIS & Remote sensing|
|Location||The 25 Symposium of Geosciences|
|Author||Massoud Goodarzi, Younes Daghigh|
|Holding Date||02 July 2007|
Remote sensing techniques are used in various applications including agriculture, forestry, oceanography and environmental studies, etc. This study was carried out using remote sensing techniques, hydrologic historical data and field observation for natural hazard mapping in the Mond river basin. Remote sensing data used are aerial photographs (۱۹۵۵,۱۹۶۵,۱۹۹۴) and satellite images (TM۱۹۸۷, ۱۹۹۱;ETM۲۰۰۱; ASTER۲۰۰۱) information was derived from the satellite images data and land use maps. In this study, watershed areas and the area that was flooded for specific amount of rainfall were determined using remote sensing techniques. The results that were obtained are encouraging and indicate the potential of using remote sensing techniques with hydrologic historical data and field observation for salinity and drought are two essential problems that hamper development in arid regions. Remote Sensing (RS) and Geographic Information System (GIS) technologies are emerging as indispensable tools in the study and mapping this dynamic phenomenon. This study presents a workable methodology with results, obtained through application of RS data and integration of the analysis in to a GIS, to assess soil salinity and its physical constraints. A ground truth survey of the study area was conducted to collect first hand knowledge about the extent of salinity in the area. This research focused on the soil and water quality and flooded area in the plain to map salinity trend and highlight resources of water (fresh & irrigation) for agricultural development.
Key words: Salinity Development, Natural Hazards, Mapping, Mond, RS and GIS