Abstract Infiltration is one of the watershed parameters that are essential for integrated water resources management. can be measured directly by a ground test such as using double infiltrometer. But very large watersheds, methods take lot time, require skilled manpower, and cost. Geographical information systems (GIS) remote sensing applications have been developed used in various fields reso...

particulate and gaseous emissions of pollutants from industries and auto-exhausts are responsible for rising discomfort, aggravates respiratory and cardiovascular. in this study, a system for air quality information in tehran city has been developed, using an online web-based geographic information system. this web-based gis application allows users to recognize areas with a potential increase ...