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Vegetation index trends for the African Sahel 1982-1999

Eklundh, Lars LU and Olsson, Lennart LU (2003) In Geophysical Research Letters 30(8). p.1430-1433
Abstract
[1] Pathfinder AVHRR NDVI data have been analyzed for the African Sahel to study recent trends in vegetation greenness. A strong increase in seasonal NDVI was observed over large areas in the Sahel during the period 1982-1999. The increase is interpreted as a vegetation recovery from the drought periods of the 1980's. Although strong shifts in satellite overpass times have led to shifting solar zenith angles (SZA) over the time period, only minimal influence of SZA's on the Pathfinder NDVI was found in our data. A preliminary analysis of rainfall data indicates increasing rainfall during the period. The observed trends may have important implications to the Sahel including changes to the water cycle, energy exchange and carbon storage.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Geophysical Research Letters
volume
30
issue
8
pages
1430 - 1433
publisher
American Geophysical Union
external identifiers
  • wos:000182841300002
  • scopus:0041382842
ISSN
1944-8007
DOI
language
English
LU publication?
yes
id
16fec094-f530-45b1-bc3c-468634950bfb (old id 310891)
date added to LUP
2007-08-29 14:13:16
date last changed
2018-06-24 04:34:33
@article{16fec094-f530-45b1-bc3c-468634950bfb,
  abstract     = {[1] Pathfinder AVHRR NDVI data have been analyzed for the African Sahel to study recent trends in vegetation greenness. A strong increase in seasonal NDVI was observed over large areas in the Sahel during the period 1982-1999. The increase is interpreted as a vegetation recovery from the drought periods of the 1980's. Although strong shifts in satellite overpass times have led to shifting solar zenith angles (SZA) over the time period, only minimal influence of SZA's on the Pathfinder NDVI was found in our data. A preliminary analysis of rainfall data indicates increasing rainfall during the period. The observed trends may have important implications to the Sahel including changes to the water cycle, energy exchange and carbon storage.},
  author       = {Eklundh, Lars and Olsson, Lennart},
  issn         = {1944-8007},
  language     = {eng},
  number       = {8},
  pages        = {1430--1433},
  publisher    = {American Geophysical Union},
  series       = {Geophysical Research Letters},
  title        = {Vegetation index trends for the African Sahel 1982-1999},
  url          = {http://dx.doi.org/},
  volume       = {30},
  year         = {2003},
}