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Asfawossen Asrat
Researcher at Addis Ababa University
Publications - 101
Citations - 2838
Asfawossen Asrat is an academic researcher from Addis Ababa University. The author has contributed to research in topics: Geology & Climate change. The author has an hindex of 22, co-authored 85 publications receiving 2224 citations. Previous affiliations of Asfawossen Asrat include Botswana International University of Science and Technology & Centre national de la recherche scientifique.
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Journal ArticleDOI
Continental-scale temperature variability during the past two millennia
Moinuddin Ahmed,Kevin J. Anchukaitis,Kevin J. Anchukaitis,Asfawossen Asrat,H. P. Borgaonkar,Martina Braida,Brendan M. Buckley,Ulf Büntgen,Brian M. Chase,Brian M. Chase,Duncan A. Christie,Duncan A. Christie,Edward R. Cook,Mark A. J. Curran,Mark A. J. Curran,Henry F. Diaz,Jan Esper,Ze-Xin Fan,Narayan Prasad Gaire,Quansheng Ge,Joelle Gergis,J. Fidel González-Rouco,Hugues Goosse,Stefan W. Grab,Nicholas E. Graham,Rochelle Graham,Martin Grosjean,Sami Hanhijärvi,Darrell S. Kaufman,Thorsten Kiefer,Katsuhiko Kimura,Atte Korhola,Paul J. Krusic,Antonio Lara,Antonio Lara,Anne-Marie Lézine,Fredrik Charpentier Ljungqvist,Andrew Lorrey,Jürg Luterbacher,Valérie Masson-Delmotte,Danny McCarroll,Joseph R. McConnell,Nicholas P. McKay,Mariano S. Morales,Andrew D. Moy,Andrew D. Moy,Robert Mulvaney,Ignacio A. Mundo,Takeshi Nakatsuka,David J. Nash,David J. Nash,Raphael Neukom,Sharon E. Nicholson,Hans Oerter,Jonathan G. Palmer,Jonathan G. Palmer,Steven J. Phipps,María Prieto,Andrés Rivera,Masaki Sano,Mirko Severi,Timothy M. Shanahan,Xuemei Shao,Feng Shi,Michael Sigl,Jason E. Smerdon,Olga Solomina,Eric J. Steig,Barbara Stenni,Meloth Thamban,Valerie Trouet,Chris S. M. Turney,Mohammed Umer,Tas van Ommen,Tas van Ommen,Dirk Verschuren,A. E. Viau,Ricardo Villalba,Bo Møllesøe Vinther,Lucien von Gunten,Sebastian Wagner,Eugene R. Wahl,Heinz Wanner,Johannes P. Werner,James W. C. White,Koh Yasue,Eduardo Zorita +86 more
TL;DR: The authors reconstructed past temperatures for seven continental-scale regions during the past one to two millennia and found that the most coherent feature in nearly all of the regional temperature reconstructions is a long-term cooling trend, which ended late in the nineteenth century.
Journal ArticleDOI
Climatic change recorded in the sediments of the Chew Bahir basin, southern Ethiopia, during the last 45,000 years
Verena Foerster,Annett Junginger,Oliver Langkamp,Tsige Gebru,Asfawossen Asrat,Mohammed Umer,Henry F. Lamb,Volker Wennrich,Janet Rethemeyer,Norbert R. Nowaczyk,Martin H. Trauth,Frank Schaebitz +11 more
TL;DR: In this article, the authors present results from a pilot core from the Chew Bahir basin in southern Ethiopia that records the climatic history of the past 45-ka, with emphasis on the African Humid Period (AHP).
Journal ArticleDOI
The Hominin Sites and Paleolakes Drilling Project : High-Resolution Paleoclimate Records from the East African Rift System and Their Implications for Understanding the Environmental Context of Hominin Evolution
Christopher J. Campisano,Andrew S. Cohen,J Ramón Arrowsmith,Asfawossen Asrat,Anna K. Behrensmeyer,Erik T. Brown,Alan L. Deino,Daniel M. Deocampo,Craig S. Feibel,John D. Kingston,Henry F. Lamb,Tim K. Lowenstein,Anders Noren,Daniel Olago,R. Bernhart Owen,Jon D. Pelletier,Richard Potts,Kaye E. Reed,Robin W. Renaut,James M. Russell,Joellen L. Russell,Frank Schäbitz,Jeffrey R. Stone,Martin H. Trauth,Jonathan G. Wynn +24 more
Journal ArticleDOI
Groundwater origin and flow along selected transects in Ethiopian rift volcanic aquifers
Seifu Kebede,Seifu Kebede,Yves Travi,Asfawossen Asrat,Tamiru Alemayehu,Tenalem Ayenew,Zenaw Tessema +6 more
TL;DR: In this paper, the authors investigated the relationship between the high rainfall plateau bounding the rift and the rift valley aquifers, and found that up to 50% of recharge to the rift aquifer comes from the plateau as groundwater inflow where the rift is cross cut by transverse fault zones.
Journal ArticleDOI
Temperature variability over Africa during the last 2000 years
Sharon E. Nicholson,David J. Nash,David J. Nash,Brian M. Chase,Brian M. Chase,Stefan W. Grab,Timothy M. Shanahan,Dirk Verschuren,Asfawossen Asrat,Anne-Marie Lézine,Mohammed Umer +10 more
TL;DR: A growing number of proxy, historical and instrumental data sets are now available from continental Africa through which past variations in temperature can be assessed as discussed by the authors, and they can be used to assess past changes in temperature.