Satellite remote sensing of primary production: comparison of results for Sahelian grasslands 1981-1988
- 1 June 1991
- journal article
- research article
- Published by Taylor & Francis Ltd in International Journal of Remote Sensing
- Vol. 12 (6), 1301-1311
- https://doi.org/10.1080/01431169108929727
Abstract
Field measurements of primary production in semi-arid grasslands in three Sahelian countries over a period of 8 years are analysed in conjunction with multitemporal sums of vegetation indices derived from the NOAA spacecraft's advanced very high resolution radiometer (AVHRR). The results demonstrate that there is a strong linear relationship between the satellite observations of vegetation indices and the seasonal primary production in the range 0-3000 kg ha−. The confidence intervals of estimation of production were in the range ±61-161 kg ha−.Keywords
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