2. Find the correlation. INSAT and GSAT satellite series: field of telecommunication :: IRS satellite series :
Answers
Explanation:
Recognizing the importance of satellite-based remote sensing systems for the management of the natural resources, DOS has been identified as the nodal agency for the establishment of a National Natural Resources Management System (NNRNS), which has the participation of various Central and State agencies/ departments. Towards the NNRMS, ISRO has undertaken the design and development of a series of Indian Remote Sensing Satellites (IRS). The IRS system is to provide remotely sensed data for applications in the areas of agriculture, hydrology, geology, drought and flood monitoring, marine studies, snow studies and land use and thus is central towards the establishment of the National Natural Resources Management System. Toward this, IRS-1A was launched in 1988, IRS-1B was launched in 1991, IRS-P2 was recently launched. The Second developmental flight of Polar Satellite Launch Vehicle (PSLV-D2) and IRS-IC/ID is scheduled for 1995-96 launch.
IRS-1A, and IRS-P2 are providing uninterrupted remotely sensed data to Indian users for a wide variety of applications. IRS-IA and IB together provide a temporal resolution of 11 days. The satellite carry three push-broom scanner based on Charge Coupled Devices (CCD) and designated as Linear Imaging Self Scanner (LISS)-l, LISS-IIA and LISS-IIB. While LISS-I provides imageries at a spatial resolution of 72 m and a swath of 148 km. LISS-II A and B provide imagery at 36 m resolution and a combined swath of 145 km. IRS-P2 carries a LISS-II camera, combining LISS-IIA and LISS-IIB of IRS-IA/IB, in a single optics and providing a swath of about 131 km.
Based on an agreement between Department of Space and EOSAT company, EOSAT is to market IRS data on a global basis. Under this agreement, EOSAT‘s Norman ground station in Oklahoma, USA, is the first station outside India to receive IRS-IB data. Any existing LANSAT station can be easily modified to receive IRS data.
The IRS data has been used for a variety of operational and national level applications. Notable applications are:
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Ground water targeting, wherein remote sensing data has been used to map the hydrogeomorphology for the whole country on a district-wise basis.
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Forest mapping, where the extent and density of forests have been mapped for the whole country.
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Flood affected area mapping, where the flood affected areas are being mapped on a near-real time basis for the Gangetic and Brahmaputra basins.
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Crop acreage and Production Estimation for a variety of crops-wheat, paddy, groundnut, sorghum and cotton is estimated using digital IRS data and digital image analysis methods. This is being done for a large part of the cropped area of the country.
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Coastal environment mapping for the entire coastline of the country where wetland, coastal landforms, coastal processes, shorelines, mangroves, etc. are mapped using IRS data.
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Environmental impact of mining; watershed characterization for soil conservation; mineral targeting; landuse mapping etc. are some of the other significant applications of IRS data