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Friday, 29 December 2023

Level IV land use and Land cover map using Remote sensibg anf secondary data

 Level-IV land use and land cover map involves large scale of aerial photographs with low altitude. The data captured is below 10,000 ft and scale is greater than 1: 20,000. Remote sensing involves the mapping of earth surface features derived from the classification of land use and mapping. All these earth features have special reflectance values. Based on these features, a map is prepared. The images are examined and converts the digital image into a pictorial one using visual interpretation techniques. These techniques include as follows,


Image Interpretation Process


In interpretation process, the image characteristics like colour, texture, size, shape, etc, helps to recognize the land features, usage, class etc. This is then finalised after the ground truth. Based on the ground information, modifications are done to final the classification of land cover and land use.


Production of GIS Output


Then the image is remoulded into a cartographic output. Through digitisation process the output has changed to softcopy resulting accuracy.

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