Monitoring of a rice field using landsat-5 TM and landsat-7 ETM+ data

Details Monitoring of a rice field using landsat-5 TM and landsat-7 ETM+ data Monitoring of a rice field using landsat-5 TM and landsat-7 ETM+ data

Dec 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003adspr..32.2223o&link_type=abstract

Advances in Space Research, Volume 32, Issue 11, p. 2223-2228.

Computer Science

1

Scientific paper

Through the research on the application of the multi temporal data acquired with Landsat-5 TM and Landsat-7 ETM+ to monitoring of rice field the following features are clarified Two vegetation indices NDVI (Normalized Difference Vegetation Index) and EVI (Extended Vegetation Index) obtained from Landsat-5 TM data of 7 July 2000 and that from Landsat-7 ETM+ data of 6 July 2000 show almost the same feature proving the validity of calibration of both sensors. NDVI computed from satellite data increases corresponding to the growth of rice plants until the flowering stage while EVI further continues to increase until the fructification stage. The vegetation indices computed from the in situ survey data with a portable multispectral radiometer do not coincide with those computed from satellite data. This is because that the reflectance of the background such as soil and water is included in the satellite data.

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