AFRICAN BIOMES DYNAMIC BY REMOTE-SENSING TEMPORAL ANALYSIS

Citation
V. Gond et al., AFRICAN BIOMES DYNAMIC BY REMOTE-SENSING TEMPORAL ANALYSIS, Comptes rendus de l'Academie des sciences. Serie 3, Sciences de la vie, 320(2), 1997, pp. 179-188
Citations number
17
Categorie Soggetti
Multidisciplinary Sciences
ISSN journal
07644469
Volume
320
Issue
2
Year of publication
1997
Pages
179 - 188
Database
ISI
SICI code
0764-4469(1997)320:2<179:ABDBRT>2.0.ZU;2-V
Abstract
Monitoring the evolution of large surface of the earth is one of the m ain applications of remote sensing science. It is also one of the main preoccupations of many scientific, economic and political communities . The analysis presented in this paper concerns the whole African cont inent. It is performed on bulk composite data from the NOAA-AVHRR sens or, which needed adapted corrections and smoothing processes. The spat ial distribution of the major biomes has been mapped, according to the ir own phenology. Seldom detected, the ecosystem's annual biological r hythms instantly give information about the spatial and temporal behav iours of the surface. Only the use of remotely sensed data allows us t o avoid problems of mixing heterogeneous information (especially clima tic data). The spatial and temporal data combined through a clustering model allow analysis of the phenological behaviour of the terrestrial surface nt smalt scale.