Physics
Scientific paper
Nov 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006georl..3322709l&link_type=abstract
Geophysical Research Letters, Volume 33, Issue 22, CiteID L22709
Physics
25
Global Change: Abrupt/Rapid Climate Change (4901, 8408), Atmospheric Processes: Climate Change And Variability (1616, 1635, 3309, 4215, 4513), Paleoceanography: Abrupt/Rapid Climate Change (1605)
Scientific paper
The abrupt desertification over the northern Africa in the mid-Holocene is studied in both a complex and a simple coupled climate-vegetation model. In contrast to the previous mechanism that relies on strong positive vegetation-climate feedback and the resulted multiple equilibria, we propose a new mechanism in which the abrupt desertification is caused by low frequency climate variability, rather than a positive vegetation-climate feedback. The implication of this new mechanism to modelling and observation is also discussed.
Gallimore Robert
Liu Zhengyu
Notaro Michael
Prentice Colin I.
Wang Yi
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