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Post-glacial arid episodes in Ethiopia have implications for climate prediction

Journal Article


Abstract


  • Several lines of geomorphological and stratigraphical evidence suggest that the widespread early post-glacial wet phase in tropical Africa between 12,500 and 5,000 yr BP (refs 1, 2) was interrupted by severe dry episodes during the intervals 11,000-10,000, 8,500-6,500 and 6,200-5,800 yr BP (refs 3-9). The magnitude of the second event has recently been questioned10. We present new stratigraphical and dating evidence from the Ziway-Shala lake basin, Ethiopia, indicating the severity and timing of dry phases during the interval 12,000-5,000 yr BP. Our findings have important implications for predictions of the climatic impact of increasing atmospheric levels of CO2. © 1983 Nature Publishing Group.

UOW Authors


  •   Gillespie, Dizzy (external author)

Publication Date


  • 1983

Published In


Citation


  • Gillespie, R., Street-perrott, F. A., & Switsur, R. (1983). Post-glacial arid episodes in Ethiopia have implications for climate prediction. Nature, 306(5944), 680-683. doi:10.1038/306680a0

Scopus Eid


  • 2-s2.0-0020918595

Web Of Science Accession Number


Start Page


  • 680

End Page


  • 683

Volume


  • 306

Issue


  • 5944

Abstract


  • Several lines of geomorphological and stratigraphical evidence suggest that the widespread early post-glacial wet phase in tropical Africa between 12,500 and 5,000 yr BP (refs 1, 2) was interrupted by severe dry episodes during the intervals 11,000-10,000, 8,500-6,500 and 6,200-5,800 yr BP (refs 3-9). The magnitude of the second event has recently been questioned10. We present new stratigraphical and dating evidence from the Ziway-Shala lake basin, Ethiopia, indicating the severity and timing of dry phases during the interval 12,000-5,000 yr BP. Our findings have important implications for predictions of the climatic impact of increasing atmospheric levels of CO2. © 1983 Nature Publishing Group.

UOW Authors


  •   Gillespie, Dizzy (external author)

Publication Date


  • 1983

Published In


Citation


  • Gillespie, R., Street-perrott, F. A., & Switsur, R. (1983). Post-glacial arid episodes in Ethiopia have implications for climate prediction. Nature, 306(5944), 680-683. doi:10.1038/306680a0

Scopus Eid


  • 2-s2.0-0020918595

Web Of Science Accession Number


Start Page


  • 680

End Page


  • 683

Volume


  • 306

Issue


  • 5944