Mohammed Umer

3.5k citations

29 papers · 1.3k indexed · h-index 20

Impact in

Archeology top 5%
Earth-Surface Processes top 2%
- Geological formations and processes

Papers in ⓘ

Atmospheric Science 15
- Geology and Paleoclimatology Research 15
Anthropology 10
- Pleistocene-Era Hominins and Archaeology 10

Co-authors: Henry F. Lamb (10 shared papers)Melanie J. Leng (5 shared papers)Asfawossen Asrat (6 shared papers)Iain Darbyshire (1 shared paper)Sarah J. Davies (3 shared papers)Michael Marshall (3 shared papers)Richard Bates (3 shared papers)Charlotte Bryant (3 shared papers)
Journals: Quaternary Science Reviews (3 papers)The Holocene (3 papers)Alexandria Engineering Journal (2 papers)Scientific Drilling (2 papers)Palaeogeography Palaeoclimatology Palaeoecology (2 papers)
Partner nations: Ethiopia United Kingdom United States

In The Last Decade

Mohammed Umer

28 papers receiving 1.2k citations

Peers

Countries citing papers authored by Mohammed Umer

Since Specialization

Citations

This map shows the geographic impact of Mohammed Umer's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Mohammed Umer with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Mohammed Umer more than expected).

Fields of papers citing papers by Mohammed Umer

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Mohammed Umer. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Mohammed Umer. The network helps show where Mohammed Umer may publish in the future.

Co-authors

The 25 scholars most cited alongside Mohammed Umer, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with Mohammed Umer Line = papers co-authored together Mohammed Umer links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

Showing the 20 most-cited of 29 papers — load more, or switch the sort, to bring in the rest.

#	Work
1	Late Pleistocene and Holocene drought events at Lake Tana, the source of the Blue Nile Global and Planetary Change ·Michael Marshall, Henry F. Lamb, Dei Huws, Sarah J. Davies, Richard Bates, Jan Bloemendal, John Boyle, Melanie J. Leng, Mohammed Umer, Charlotte Bryant	2011	175
2	Forest clearance and regrowth in northern Ethiopia during the last 3000 years The Holocene ·Iain Darbyshire, Henry F. Lamb, Mohammed Umer	2003	133
3	Late Pleistocene desiccation of Lake Tana, source of the Blue Nile Quaternary Science Reviews ·Henry F. Lamb, Richard Bates, Paul V. Coombes, Michael Marshall, Mohammed Umer, Sarah J. Davies, Eshete Dejen	2007	125
4	Climatic change recorded in the sediments of the Chew Bahir basin, southern Ethiopia, during the last 45,000 years Quaternary International ·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	2012	111
5	Late Pleistocene and Holocene vegetation history of the Bale Mountains, Ethiopia Quaternary Science Reviews ·Mohammed Umer, Henry F. Lamb, R. Bonnéfille, Anne‐Marie Lézine, J.-J. Tiercelin, E. Gibert, Jean-Pierre Cazet, J Watrin	2007	87
6	Temperature variability over Africa during the last 2000 years The Holocene ·Sharon E. Nicholson, David J. Nash, Brian Chase, Stefan Grab, Timothy M. Shanahan, Dirk Verschuren, Asfawossen Asrat, Anne‐Marie Lézine, Mohammed Umer	2013	80
7	Landslides in the Ethiopian highlands and the Rift margins Journal of African Earth Sciences ·Bekele Abebe, F. Dramis, Giandomenico Fubelli, Mohammed Umer, Asfawossen Asrat	2009	71
8	Analysis of the climate signal contained within δ18O and growth rate parameters in two Ethiopian stalagmites Geochimica et Cosmochimica Acta ·Andy Baker, Asfawossen Asrat, Ian J. Fairchild, Melanie J. Leng, P. Wynn, Charlotte Bryant, Dominique Genty, Mohammed Umer	2007	66
9	Oxygen and carbon isotope composition of authigenic carbonate from an Ethiopian lake: a climate record of the last 2000 years The Holocene ·Henry F. Lamb, Melanie J. Leng, Richard J. Telford, Tenalem Ayenew, Mohammed Umer	2007	50
10	Climatic change in northern Ethiopia during the past 17,000 years: A diatom and stable isotope record from Lake Ashenge Palaeogeography Palaeoclimatology Palaeoecology ·Michael Marshall, Henry F. Lamb, Sarah J. Davies, Melanie J. Leng, Zelalem Kubsa, Mohammed Umer, Charlotte Bryant	2009	44
11	Holocene climate phases from buried soils in Tigray (northern Ethiopia): comparison with lake level fluctuations in the Main Ethiopian Rift Quaternary Research ·F. Dramis, Mohammed Umer, Gilberto Calderoni, Mitiku Haile	2003	37
12	Preliminary geology and paleontology of new hominid-bearing Pliocene localities in the central Afar region of Ethiopia Anthropological Science ·Yohannes Haile‐Selassie, Alan L. Deino, Beverly Z. Saylor, Mohammed Umer, Bruce Latimer	2007	33
13	Holocene palaeovegetation of the Tigray Plateau in northern Ethiopia from charcoal and stable organic carbon isotopic analyses of gully sediments Palaeogeography Palaeoclimatology Palaeoecology ·Tsige Gebru, Zewdu Eshetu, Yongsong Huang, Taddese Woldemariam, N. Strong, Mohammed Umer, Michael Diblasi, Valery J. Terwilliger	2009	31
14	Chloroplast DNA haplotype diversity and postglacial recolonization of Hagenia abyssinica (Bruce) J.F. Gmel. in Ethiopia Plant Systematics and Evolution ·Taye Bekele Ayele, Oliver Gailing, Mohammed Umer, Reiner Finkeldey	2009	30
15	Long-term resilience, bush encroachment patterns and local knowledge in a Northeast African savanna Global Environmental Change ·Graciela Gil‐Romera, Henry F. Lamb, David Turton, Miguel Sevilla-Callejo, Mohammed Umer	2010	29
16	High-resolution sedimentary record of the last deglaciation from a high-altitude lake in Ethiopia Quaternary Science Reviews ·Jean‐Jacques Tiercelin, E. Gibert, Mohammed Umer, Raymonde Bonnefille, J.R. Disnar, Anne‐Marie Lézine, D. Hureau-Mazaudier, Yves Travi, Didier Kéravis, Henry F. Lamb	2008	29
17	Environmental monitoring in the Mechara caves, Southeastern Ethiopia: implications for speleothem palaeoclimate studies International Journal of Speleology ·Asfawossen Asrat, Andy Baker, Melanie J. Leng, John Gunn, Mohammed Umer	2008	27
18	Weathering of the Ethiopian volcanic province: A new weathering index to characterize and compare soils American Mineralogist ·Jennifer S. Le Blond, Javier Cuadros, Yordanos Molla, Berhanu Tadesse, Mohammed Umer, Peter J. Baxter, Gail Davey	2015	27
19	Understanding Paleoclimate and Human Evolution Through the Hominin Sites and Paleolakes Drilling Project Scientific Drilling ·Andrew S. Cohen, J Ramón Arrowsmith, Anna K. Behrensmeyer, Christopher J. Campisano, Craig S. Feibel, Shimeles Fisseha, Roy A. Johnson, Zelalem K. Bedaso, C. Lockwoodt, R. Mbua, Daniel Olago, Richard Potts, Kaye E. Reed, Robin W. Renaut, Jean‐Jacques Tiercelin, Mohammed Umer	2009	22
20	Local variation in climate and land use during the time of the major kingdoms of the Tigray Plateau in Ethiopia and Eritrea CATENA ·Valery J. Terwilliger, Zewdu Eshetu, Yongsong Huang, Marcelo R. Alexandre, Mohammed Umer, Tsige Gebru	2010	21

About Mohammed Umer

Mohammed Umer is a scholar working on Atmospheric Science, Anthropology, Paleontology, Earth-Surface Processes and Management, Monitoring, Policy and Law, having authored 29 papers that have together received 1.3k indexed citations. Recurring topics across this work include Geology and Paleoclimatology Research (15 papers), Pleistocene-Era Hominins and Archaeology (10 papers), Geological formations and processes (5 papers), Aquatic Ecosystems and Biodiversity (5 papers), Archaeology and ancient environmental studies (4 papers), Rangeland Management and Livestock Ecology (4 papers), Evolution and Paleontology Studies (3 papers) and Soil erosion and sediment transport (2 papers). The work is most often cited by research in Archeology (46 citations), Earth-Surface Processes (289 citations), Atmospheric Science (665 citations), Paleontology (259 citations) and Anthropology (332 citations). Mohammed Umer has collaborated with scholars based in Ethiopia, United Kingdom and United States. Frequent co-authors include Henry F. Lamb, Melanie J. Leng, Asfawossen Asrat, Iain Darbyshire, Sarah J. Davies, Michael Marshall, Richard Bates, Charlotte Bryant, Anne‐Marie Lézine and F. Dramis. Their work appears in journals such as Quaternary Science Reviews, The Holocene, Alexandria Engineering Journal, Scientific Drilling and Palaeogeography Palaeoclimatology Palaeoecology.

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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