INDIAN SCENARIO IN THE APPLICATION OF GEOGRAPHICAL INFORMATION SYSTEM AND GEO-INFORMATICS

摘要

The usefulness and importance in the application of Geographical Information System (GIS) is well understood in India and is being further developed for use by a larger community sector. With the rapid stride India has made during the last two decades by launching its own land resources satellites, like Indian Remote Sensing Satellite (IRS) - 1A, 1B, 1C and 1D, data from these have been well received by international community and perhaps used extensively all over the world. The Indian Remote Sensing Communities are exposing the State of the art situation of various natural resources very effectively, and adding a touch of the socio-economic data also incorporated in the form of G.I.S. based on the 1:50,000 scale topographical maps that are available. The intensity of information and the positional accuracy needed with a large scale, cartographic database is still not well understood for integrating all data more purposefully. While Satellite Remote Sensed data is easily available at a price, by any one who needs it, aerial photographs are not easily made available to all private individuals. It must also be understood that creating an accurate cartographic database decides the final accuracy of G.I.S. operation and solutions arrived at. The gist is, recognition of the importance of (1) Using Aerial photographic techniques for map making for producing accurate large scale cartographic database, which as of now cannot be expected to be produced by satellite data, for some more years to come, (2) Appreciate that Remote Sensing is only a descriptive technology and it cannot by itself prescribe solutions, (3) Closer linkage and discussion with the society who can use them has to be intensified with capacity to teach them 'do how' rather than 'know how', (4) Adapt to facilitate its detailed usage for precision agriculture, detailed urban facility management and produce information with a view to solve specific problems, and (5) We should realize that it is necessary to recognize the strengths and short coming of each technology as most of them are complementary.