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The Space borne remote sensing via satellites constitute a far greater improvement over ground based or even airborne surveys because,

  • It is cheaper & much speedier.
  • It is more accurate & reliable.
  • It is a multi dimensional survey tool whereby more than one type of surveys can be simultaneously carried out for a wide variety of application.

The remote sensing in India is an umbrella of National Natural Resources Management System (NNRMS). Remote Sensing has been applied in many diverse fields in India which are:

  1. Agriculture: In the field of agriculture the RSS has helped in assessing the net crop area, Crop production forecasting, Movement of locust, Flood warning, damage assessments. On the bases of data provided by “IRS-1A & 1B” planning commission has divided the country into 15 Agro-climatic regions for better agriculture production.
  2. Natural resource Management: In the field of natural resource management, it has helped in accurately assessing the Land use and land cover mapping, mineral prospecting, forest resource surveys, Survey of forest cover distribution, monitoring of forest-fires etc. National Wasteland Maps have been prepared, identifying the types and extent of wastelands at village level, for 237 selected districts spread all over the country. These maps have been provided to the Department of Wasteland Development and district authorities for taking up Wasteland reclamation measures.                                                            APPLICATIONS OF REMOTE SENSING SATELLITES
  3. Disaster Management & Meteorology: The RSS finds its applications in the early warning mechanism for cyclones, the short term weather forecasting, and the warning, Monitoring as well as the Impact assessment for droughts and floods.
  4. Sustainable Development: A major application of IRS data is the Integrated Mission for Sustainable Development (IMSD) which was initiated in 1992 to generate locale-specific action plans for sustainable development of natural resources, in terms of productivity, quality of environment and ecological set-up. The locale-specific prescriptions are generated under IMSD using data from IRS satellites and collateral socio-economic data in collaboration with the State Remote Sensing Application Centre, Universities, private entrepreneurs and non­governmental organizations.
  5. Urban studies: With the availability of high resolution panchromatic data from IRS-IC and IRS-ID, many new applications in urban studies have been carried out, such as urban sprawl, structural plans for cities, guide maps for Delhi, Bangalore etc.                              APPLICATIONS OF REMOTE SENSING SATELLITES
  6. Defence: – The equipment on board IRS systems of satellites can act as a spy in the sky. They can pick up images of troop movements as well as deployments by the enemy. Remote Sensing has also helped to track a lost River bed in the Thar Desert of country which could be used for extending drinking H2O facility to population.


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