The article today was "Atmospheric / vegetation feedbacks: A mechanism for abrupt climate change over northern Africa" by CM Patricola and KH Cook. The paper discusses the sensitivity to the latitude of the desert border in the Sahara and the atmospheric feedbacks in the African easterly jet (AEJ). The idea is that if the desert border is located below 17.9N the climate becomes sensitive and the summer precipitation and a weakening in the AEJ. There are a few concerns with the paper as they use prescribed soil moisture and do not discuss the land cover model used.
Thursday, October 23, 2008
Journal Club MTG4: Atmospheric Feedbacks
The article today was "Atmospheric / vegetation feedbacks: A mechanism for abrupt climate change over northern Africa" by CM Patricola and KH Cook. The paper discusses the sensitivity to the latitude of the desert border in the Sahara and the atmospheric feedbacks in the African easterly jet (AEJ). The idea is that if the desert border is located below 17.9N the climate becomes sensitive and the summer precipitation and a weakening in the AEJ. There are a few concerns with the paper as they use prescribed soil moisture and do not discuss the land cover model used.
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