Vegetation dynamics of West Africa classified using AVHRR NDVI time-series
The Best Index Slope Extraction (BISE) method is proposed as an alternative to the Maximum Value Composite (MVC) as a method for preparing NDVI (Normalised Difference Vegetation Index) time series from AVHRR data. The BISE method retains more valuable elements of an NDVI time-series than the MVC. Unsupervised classification of time series prepared using the BISE method is used to characterise the spatial and temporal variability of vegetation development for West Africa. There is good discrimination between vegetation types in the Sahelo-Sudanian and Sudano-Guinean climatic regions, though separating primary and secondary forest formations is still a problem in the southern Guinean region.
Bibliographic Reference: Paper presented: 5th AVHRR Data User Meeting, TromsÝ (NO), June 25-28, 1991
Availability: Available from (1) as Paper EN 36716 ORA
Record Number: 199210635 / Last updated on: 1994-12-02
Original language: en
Available languages: en