Q.Bring out specific uses of Remote Sensing.

Remote sensing supports vegetation/forest monitoring, agriculture, land-use mapping, water-resource assessment, disaster management and biodiversity/habitat studies.

Remote sensing is the technique of acquiring information about the Earth's surface, its vegetation, and other resources from a distance, using sensors mounted on satellites or aircraft, without direct physical contact. Its specific uses include:

1. Vegetation and forest-cover monitoring: mapping the extent and type of forest cover, tracking deforestation, forest degradation, and regeneration over time.

2. Agricultural applications: assessing crop type, crop health, and area under cultivation, and estimating likely crop yield over large regions.

3. Land-use and land-cover change detection: monitoring changes such as urbanisation, conversion of forest/agricultural land, and expansion of built-up areas over time by comparing images from different periods.

4. Water-resource and wetland mapping: identifying and mapping water bodies, wetlands, and monitoring changes in water spread area, useful for water-resource planning and conservation.

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