Using GIS/RS for Flood Management (A case study in Golestan)

To create the final spatial information and products, flood hazard maps and land development priority maps, data for the flood events of 1989 to 2004 were incorporated with Geo-spatial Information System data of physiographic divisions, geologic divisions, land cover classification, elevation height, drainage network, administrative districts and population density. Special attention was paid to population density for the construction of the land development priority map and satellite image analysis to determine land use changes and using GIS to analysis of geo-spatial information, because highly dense populated areas represent the highly important urban and industrial areas in Golestan. while geo-information technology offers an opportunity to support flood management adequate geo-spatial information is a prerequisite for sustainable development, but many parts of the world lack adequate information on environmental resources. By providing such information, which serves as an important tool for decision-making in land use planning, national mapping agencies can help provide effective information to natural disaster management. Accurate information on land and environmental resources is essential to provide disaster management plan. Key sources of information include topographic maps, aerial photos, satellite images and data derived from geographic information systems. At the national level, this information can be used to identify environmental resources to use in proper planning as a tool for disaster management and help promote effective environmental situation and land use planning to reduce disaster risk. This paper develops a framework for flood modeling and begins with some general comments on the importance of land use planning, and outlines some current environmental issues and then presenting environmental models to use in disaster management plan by using GIS and remote sensing results. Flood modeling is a complex problem that requires cooperation of many scientists in different fields. The article also discusses the role that geo-information and environmental planning play in disaster management to reduce negative impacts of flood and present proper alternatives for developing of Golestan. Advanced high-resolution sensor technology has provided immense scope to the decision makers for analysis of flood and damages details using GIS and remote sensing data. Golestan in North of Iran is faced severe problem of floods every year.

کلیدواژه ها:

vironmental Modeling ، Land Use Planning ، Geo-Spatial Information ، GIS