Sahelian rangeland production in relation to rainfall estimates from Meteosat

Autor:	J. R. Milford, George Dugdale, R. Bonifacio
Rok vydání:	1993
Předmět:	Hydrology Calibration (statistics) Climatology Satellite data General Earth and Planetary Sciences Environmental science Production (economics) Growing season Vegetation Rangeland Normalized Difference Vegetation Index Water use
Zdroj:	International Journal of Remote Sensing. 14:2695-2711
ISSN:	1366-5901 0143-1161
DOI:	10.1080/01431169308904302
Popis:	Abstract. Satellite data are routinely used to monitor the growing season over the Sahelian zone of Africa. This study seeks to relate the vegetation indices and the rainfall estimates, both derived from meteorological satellites, to help monitor and predict the production of rangelands and marginal agricultural areas. Plant water use was calculated from a simple model which lakes into account the timing and distribution of rainfall: over a three-year period, the response of the Normalised Difference Vegetation Index (NDVI) to this quantity was consistent and was spatially quantified for two calibration years. A predictive model for end-of-season accumulated NDVI was developed and validated for a test year.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::bcdca6be55831250ea99097989b4b513 https://doi.org/10.1080/01431169308904302 Zobrazit plný text záznamu