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ONGOING PROJECTS

Near Real Time Flood Mapping of Assam

Background

Flood layers derived from satellite data acquired by Radarsat (if cloud persists) otherwise Indian Remote Sensing Satellite data (if cloud free) is sent through the e-mail to our Centre from the Water Resource division NRSA, Hyderabad. This flood layer is digitally integrated in other information layers viz. base map of Assam along with district boundary and village boundary layer. Necessary inundated area statistics are calculated district wise for onward distribution to line departments.

It is proposed to make a "Post Flood Damage Assessment in Assam" using various layers like landuse/landcover, village boundaries, roads, railways and attribute data (socio- economic, demographic, crop conditions etc.) to derive spatial as well as statistical information of the damage done by floods. Recently ARSAC has completed generating databases (infrastructure, landuse/landcover, hydrogeomorphology and other administrative boundaries along with socio-economic data) for four districts of Assam viz. Kamrup, Golaghat, Dibrugarh and Tinsukia. Databases for remaining districts are being generated at NE-SAC, Shillong and RRSSC, Kharagpur. Finally, all the databases are integrated at RRSSC (N). The project is being done in collaboration with Department of Space, Govt. of India. The databases created are extensively used along with flood inundation layer for onward submission to the line departments. It is a regular programme on yearly basis.

Objectives

To disseminate flood inundation status (maps and area statistics) to various user departments on near real time basis for proper relief operations as well as for post flood damage assessment.

To demonstrate the capabilities of space based systems and services using Information Technology (IT) tools, for near real time flood monitoring and damage assessment.

Activity

During flood season inundation status are provided to the Govt. Departments on regular basis

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