S
Samson G. Mengistu
Researcher at United States Environmental Protection Agency
Publications - 15
Citations - 305
Samson G. Mengistu is an academic researcher from United States Environmental Protection Agency. The author has contributed to research in topics: Streamflow & Drainage basin. The author has an hindex of 7, co-authored 15 publications receiving 214 citations. Previous affiliations of Samson G. Mengistu include Environment Canada & National Research Council.
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Deployment of an unmanned aerial system to assist in mapping an intermittent stream
TL;DR: Whether or not obtaining high-resolution UAS imagery was advantageous for identifying an intermittent stream network was determined by comparing it with coarse-scale satellite imagery collected for the same purpose, and insight into the advantages and disadvantages of deploying a UAS for this kind of research is provided.
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Testing the ability of a semidistributed hydrological model to simulate contributing area
TL;DR: In this paper, the ability of a semi-distributed hydrological model, the PDMROF configuration of Environment Canada's MESH model, was tested to determine if it could simulate contributing area.
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Searching for similarity in topographic controls on carbon, nitrogen and phosphorus export from forested headwater catchments
TL;DR: In this paper, topographic indicators were designed to represent topographically regulated hydrological processes that influence biogeochemical export to surface water on forested landscapes, and the differences in longterm average annual dissolved organic carbon (DOC), organic and inorganic nitrogen [NO3−-N, dissolved organic nitrogen (DON)], and phosphorus (total dissolved phosphorus, TDP) export from catchments in the Algoma Highlands of Ontario, Canada, with similar climate, geology, forest and soil were established.
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Non-floodplain Wetlands Affect Watershed Nutrient Dynamics: A Critical Review.
Heather E. Golden,Adnan Rajib,Charles R. Lane,Jay R. Christensen,Qiusheng Wu,Samson G. Mengistu +5 more
TL;DR: This critical review synthesizes the state of the science about the watershed-scale effects of non-floodplain wetlands on nutrient-based (nitrogen, phosphorus) water quality and outlines research recommendations that will improve the scientific understanding of how NFWs affect downstream water quality.
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Fluvial CO 2 and CH 4 patterns across wildfire-disturbed ecozones of subarctic Canada: Current status and implications for future change
Ryan H. S. Hutchins,Suzanne E. Tank,David Olefeldt,William L. Quinton,Christopher Spence,Nicole Dion,Cristian Estop-Aragonés,Samson G. Mengistu +7 more
TL;DR: Overall, this study suggests that fluvial CO2 emissions are unlikely to be sensitive to altered fire regimes, but that warming and permafrost thaw will increase emissions significantly.