A Spatiotemporal Analysis of Climatic Drivers for Observed Changes in Sahelian Vegetation Productivity (1982–2007)
Joint Authors
Kaspersen, Per Skougaard
Huber, Silvia
Fensholt, Rasmus
Source
International Journal of Geophysics
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-12-27
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Abstract EN
Linear trend analysis and seasonal trend analysis are performed on gridded data of vegetation, rainfall, solar radiation flux, and air temperature, in order to examine the influence of the past three decades of climate variability and change on the Sahelian vegetation dynamics.
Per-pixel correlation analyses are conducted on annual and monthly data, and analyses of change in the potential climatic constraints to the natural vegetation development from 1982–2007 are performed.
The results reveal two distinct periods: (a) 1982–1994 marked by large increases in vegetation productivity and rainfall and little change in average air temperatures and solar radiation and (b) 1995–2007 characterized by no distinct trends in vegetation productivity and rainfall and increase in average air temperatures and decrease in solar radiation flux.
Correlations between vegetation productivity and climatic constraints were found to be statistically significant only for rainfall explaining only a moderate degree of observed NDVI variation, indicating that nonclimatic factors are also important for the Sahelian vegetation dynamics.
American Psychological Association (APA)
Kaspersen, Per Skougaard& Fensholt, Rasmus& Huber, Silvia. 2011. A Spatiotemporal Analysis of Climatic Drivers for Observed Changes in Sahelian Vegetation Productivity (1982–2007). International Journal of Geophysics،Vol. 2011, no. 2011, pp.1-14.
https://search.emarefa.net/detail/BIM-492793
Modern Language Association (MLA)
Kaspersen, Per Skougaard…[et al.]. A Spatiotemporal Analysis of Climatic Drivers for Observed Changes in Sahelian Vegetation Productivity (1982–2007). International Journal of Geophysics No. 2011 (2011), pp.1-14.
https://search.emarefa.net/detail/BIM-492793
American Medical Association (AMA)
Kaspersen, Per Skougaard& Fensholt, Rasmus& Huber, Silvia. A Spatiotemporal Analysis of Climatic Drivers for Observed Changes in Sahelian Vegetation Productivity (1982–2007). International Journal of Geophysics. 2011. Vol. 2011, no. 2011, pp.1-14.
https://search.emarefa.net/detail/BIM-492793
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-492793