District-level rice-yield estimation for Orissa using satellite data |
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| Authors: | N Ravi N K Patel R R Navalgund S Panigrahy R N Dash |
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| Institution: | 1. Space Applications Centre (ISRO), 380 053, Ahmedabad
2. Central Rice Research Institute, 753 006, Cuttack
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| Abstract: | Remotely-sensed data transformed into a vegetation index (radiance ratio of near infrared to red) has been related to district rice yields for Orissa using IRS-1A LISS-I data of kharif seasons 1988–89 and 1989–90. Using the empirical relation of the first year, estimation of rice yield has been done for the 1989–90 kharif season. Deviations in the districts of coastal tract and central tableland ranged from 1.9 to 11.1 percent whereas deviations were larger in Eastern Ghat and Northern plateau of Orissa. |
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