Jason is Surface Water Section Chief and Sediment Specialist at the Wyoming-Montana Water Science Center.
Jason's training is in fluvial geomorphology and his work typically focuses on the interface(s) between river processes and physical habitats of river-dependent species. He works with stakeholders to develop scientific foundations for decision making in rivers and streams with ongoing or legacy development pressures. This work spans geomorphic settings ranging from low-slope sand-bedded streams of the Midwest United States to canyon rivers of the Colorado Plateau, and land-use settings ranging from the near pristine to those with heavy agricultural and urban land pressures.
Professional Experience
2021-present Supervisory Hydrologist [Surface Water Studies Chief], U.S. Geological Survey Wyoming-Montana Water Science Center.
2018-2021 Hydrologist [Project Chief], U.S. Geological Survey Wyoming-Montana Water Science Center.
2007-2014 Hydrologist [Project Chief], U.S. Geological Survey Nebraska Water Science Center, 2007 to 2014.
2007 Integrated Water Management Analyst, Nebraska Department of Natural Resources, Lincoln, Nebraska.
2002 – 2004 Engineering Specialist, Wright Water Engineers Inc., Glenwood Springs, Colorado.
2000 – 2002 Geomorphologist, Stetson Engineers, San Rafael, California.
Education and Certifications
Ph.D. Geology (Fluvial Geomorphology), University of Wyoming, 2020.
M.S. Watershed Science (Fluvial Geomorphology), Utah State University, 2007.
B.S. Geology, Colorado State University, 2000.
B.S. Watershed Science, Colorado State University, 2000.
Science and Products
Filter Total Items: 17
Habitat use by a freshwater dolphin in the low-water season
1. Many river dolphin populations are most vulnerable during the low-water season when habitat is limited. Indus River dolphin habitat selection in the dry season was investigated using Generalized Linear Models of dolphin distribution and abundance in relation to physical features of river geomorphology and channel geometry in cross-section. 2. Dolphins selected locations in the river with signif
A brief history and summary of the effects of river engineering and dams on the Mississippi River system and delta
The U.S. Geological Survey Forecast Mekong project is providing technical assistance and information to aid management decisions and build science capacity of institutions in the Mekong River Basin. A component of this effort is to produce a synthesis of the effects of dams and other engineering structures on large-river hydrology, sediment transport, geomorphology, ecology, water quality, and del
Sediment samples and channel-geometry data, lower Platte River watershed, Nebraska, 2010
The relation between channel width and stream physical habitat in the lower Platte River in eastern Nebraska was studied as part of the lower Platte River Cumulative Impact Study. The purpose of this component was to document the grain-size distribution of sediment deposited as specific types of physical features, such as sandbars, banks, and stream beds within different hydraulic habitats, within
Hydrogeomorphic and hydraulic habitats of the Niobrara River, Nebraska-with special emphasis on the Niobrara National Scenic River
The Niobrara River is an ecologically and economically important resource in Nebraska. The Nebraska Department of Natural Resources' recent designation of the hydraulically connected surface- and groundwater resources of the Niobrara River Basin as ?fully appropriated? has emphasized the importance of understanding linkages between the physical and ecological dynamics of the Niobrara River so it c
Geomorphic segmentation, hydraulic geometry, and hydraulic microhabitats of the Niobrara River, Nebraska — Methods and initial results
The Niobrara River of Nebraska is a geologically, ecologically, and economically significant resource. The State of Nebraska has recognized the need to better manage the surface- and ground-water resources of the Niobrara River so they are sustainable in the long term. In cooperation with the Nebraska Game and Parks Commission, the U.S. Geological Survey is investigating the hydrogeomorphic settin
Non-USGS Publications**
Alexander, J.S, Huzurbazar, S., and McElroy, B.J., 2021, Examining the fluvial alteration hypothesis amidst recovery of the Interior Least Tern (Sternula antillarum), Ecosphere 12:7, p.e03491.
Alexander, J.S., McElroy, B.J., Huzurbazar, S., and Murr, M.L., 2020, Elevation gaps in fluvial sandbar deposition and their consequences for paleodepth inversion: Geology, DOI:10.1130/G47521.1.
Alexander, J.S., McElroy, B., Huzurbazar, S., Elliott, C. and Murr, M.L., 2020. Deposition potential and flow‐response dynamics of emergent sandbars in a braided river. Water Resources Research, 56(1), p.e2018WR024107.
Dilbone, E., Legleiter, C.J., Alexander, J.S. and McElroy, B., 2018. Spectrally based bathymetric mapping of a dynamic, sand‐bedded channel: Niobrara River, Nebraska, USA. River Research and Applications, 34(5), pp.430-441.
Alexander, J.S., Jorgensen, J.G., Brown, M.B., 2018, Reproductive ecology of interior least tern and piping plover in relation to Platte River hydrology and sandbar dynamics—Editorial: Ecology and Evolution, DOI:10.1002/ece3.4109.
Mueller, E.R., Grams, P.E., Schmidt, J.C., Hazel, J.E., Jr., Alexander, J.S., and Kaplinski, M., 2014, The influence of controlled floods on fine sediment storage in debris fan-affected canyons of the Colorado River basin: Geomorphology, v. 226, p. 65-75.
Braulik, G.T., Reichert, A.P, Ehsan, T., Khan, S., Northridge, S.P., Alexander, J.S., and Garstang, R., 2012, Habitat use by a freshwater dolphin in the low-water season: Aquatic Conservation—Marine and Freshwater Ecosystems, v. 22, p. 533-546.
Soenksen, P.J., Flyr, B.B., Alexander, J.S., and Schaepe, N.J., 2010, Streamflow gains and losses in the Niobrara River Basin, Nebraska, 1980 and 2009: Journal of Environmental Hydrology, v. 18, 18 p.
Hallum, D., Alexander, J., Ostdiek, A., Cartwright, T., Lear, J., Pun, M., Bradley, J., Josiah, S., Koester, P., and Kloch, D., 2008, Assessment of resources available to quantify non-beneficial consumptive water use by riparian vegetation in Nebraska: Nebraska Department of Natural Resources Technical Report Number 2008-01, 58 p.
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Science and Products
- Science
- Data
No Result Found
- Publications
Filter Total Items: 17
Habitat use by a freshwater dolphin in the low-water season
1. Many river dolphin populations are most vulnerable during the low-water season when habitat is limited. Indus River dolphin habitat selection in the dry season was investigated using Generalized Linear Models of dolphin distribution and abundance in relation to physical features of river geomorphology and channel geometry in cross-section. 2. Dolphins selected locations in the river with signifA brief history and summary of the effects of river engineering and dams on the Mississippi River system and delta
The U.S. Geological Survey Forecast Mekong project is providing technical assistance and information to aid management decisions and build science capacity of institutions in the Mekong River Basin. A component of this effort is to produce a synthesis of the effects of dams and other engineering structures on large-river hydrology, sediment transport, geomorphology, ecology, water quality, and delSediment samples and channel-geometry data, lower Platte River watershed, Nebraska, 2010
The relation between channel width and stream physical habitat in the lower Platte River in eastern Nebraska was studied as part of the lower Platte River Cumulative Impact Study. The purpose of this component was to document the grain-size distribution of sediment deposited as specific types of physical features, such as sandbars, banks, and stream beds within different hydraulic habitats, withinHydrogeomorphic and hydraulic habitats of the Niobrara River, Nebraska-with special emphasis on the Niobrara National Scenic River
The Niobrara River is an ecologically and economically important resource in Nebraska. The Nebraska Department of Natural Resources' recent designation of the hydraulically connected surface- and groundwater resources of the Niobrara River Basin as ?fully appropriated? has emphasized the importance of understanding linkages between the physical and ecological dynamics of the Niobrara River so it cGeomorphic segmentation, hydraulic geometry, and hydraulic microhabitats of the Niobrara River, Nebraska — Methods and initial results
The Niobrara River of Nebraska is a geologically, ecologically, and economically significant resource. The State of Nebraska has recognized the need to better manage the surface- and ground-water resources of the Niobrara River so they are sustainable in the long term. In cooperation with the Nebraska Game and Parks Commission, the U.S. Geological Survey is investigating the hydrogeomorphic settinNon-USGS Publications**
Alexander, J.S, Huzurbazar, S., and McElroy, B.J., 2021, Examining the fluvial alteration hypothesis amidst recovery of the Interior Least Tern (Sternula antillarum), Ecosphere 12:7, p.e03491.Alexander, J.S., McElroy, B.J., Huzurbazar, S., and Murr, M.L., 2020, Elevation gaps in fluvial sandbar deposition and their consequences for paleodepth inversion: Geology, DOI:10.1130/G47521.1.Alexander, J.S., McElroy, B., Huzurbazar, S., Elliott, C. and Murr, M.L., 2020. Deposition potential and flow‐response dynamics of emergent sandbars in a braided river. Water Resources Research, 56(1), p.e2018WR024107.Dilbone, E., Legleiter, C.J., Alexander, J.S. and McElroy, B., 2018. Spectrally based bathymetric mapping of a dynamic, sand‐bedded channel: Niobrara River, Nebraska, USA. River Research and Applications, 34(5), pp.430-441.Alexander, J.S., Jorgensen, J.G., Brown, M.B., 2018, Reproductive ecology of interior least tern and piping plover in relation to Platte River hydrology and sandbar dynamics—Editorial: Ecology and Evolution, DOI:10.1002/ece3.4109.Mueller, E.R., Grams, P.E., Schmidt, J.C., Hazel, J.E., Jr., Alexander, J.S., and Kaplinski, M., 2014, The influence of controlled floods on fine sediment storage in debris fan-affected canyons of the Colorado River basin: Geomorphology, v. 226, p. 65-75.Braulik, G.T., Reichert, A.P, Ehsan, T., Khan, S., Northridge, S.P., Alexander, J.S., and Garstang, R., 2012, Habitat use by a freshwater dolphin in the low-water season: Aquatic Conservation—Marine and Freshwater Ecosystems, v. 22, p. 533-546.Soenksen, P.J., Flyr, B.B., Alexander, J.S., and Schaepe, N.J., 2010, Streamflow gains and losses in the Niobrara River Basin, Nebraska, 1980 and 2009: Journal of Environmental Hydrology, v. 18, 18 p.Hallum, D., Alexander, J., Ostdiek, A., Cartwright, T., Lear, J., Pun, M., Bradley, J., Josiah, S., Koester, P., and Kloch, D., 2008, Assessment of resources available to quantify non-beneficial consumptive water use by riparian vegetation in Nebraska: Nebraska Department of Natural Resources Technical Report Number 2008-01, 58 p.**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
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No results found.