Greg Koltun
Biography
Education:
Master of Science, Civil Engineering, The Ohio State University
Bachelor of Science, Microbiology, The Ohio State University
Professional Affiliations:
Member - American Society of Civil Engineers
Professional Experience:
1980 - Present Hydrologist, U.S. Geological Survey, Columbus, Ohio
1978 - 1980 Environmental Scientist, Ohio E.P.A., Columbus, Ohio
Science and Products
Date published: April 3, 2020
Status: Active Grand River near Painesville, OH
Water-quality “super” gages (also known as “sentry” gages) provide real-time, continuous measurements of the physical and chemical characteristics of stream water at or near selected U.S. Geological Survey (USGS) streamgages in Ohio, Kentucky, and Indiana. A super gage includes streamflow and water-quality instrumentation and representative stream sample collection for laboratory analysis....
Contacts: Erin Bertke, Greg Koltun
Date published: March 26, 2020
Status: Active Huron River near Milan, OH
Water-quality “super” gages (also known as “sentry” gages) provide real-time, continuous measurements of the physical and chemical characteristics of stream water at or near selected U.S. Geological Survey (USGS) streamgages in Ohio, Kentucky, and Indiana. A super gage includes streamflow and water-quality instrumentation and representative stream sample collection for laboratory analysis....
Contacts: Erin Bertke, Greg Koltun
Date published: May 31, 2019
Status: Active Black River at Elyria, OH
Water-quality “super” gages (also known as “sentry” gages) provide real-time, continuous measurements of the physical and chemical characteristics of stream water at or near selected U.S. Geological Survey (USGS) streamgages in Ohio, Kentucky, and Indiana. A super gage includes streamflow and water-quality instrumentation and representative stream sample collection for laboratory analysis....
Contacts: Greg Koltun, Erin Bertke
Date published: May 30, 2019
Status: Active Cuyahoga River at Independence, OH
Water-quality “super” gages (also known as “sentry” gages) provide real-time, continuous measurements of the physical and chemical characteristics of stream water at or near selected U.S. Geological Survey (USGS) streamgages in Ohio, Kentucky, and Indiana. A super gage includes streamflow and water-quality instrumentation and representative stream sample collection for laboratory analysis....
Contacts: Greg Koltun, Erin Bertke
Year Published: 2020
Land-cover and climatic controls on water temperature, flow permanence, and fragmentation of Great Basin stream networks
The seasonal and inter-annual variability of flow presence and water temperature within headwater streams of the Great Basin of the western United States limit the occurrence and distribution of coldwater fish and other aquatic species. To evaluate changes in flow presence and water temperature during seasonal dry periods, we developed spatial...
Gendaszek, Andrew S.; Dunham, Jason B.; Torgersen, Christian E.; Hockman-Wert, David P; Heck, Michael; Thorson, Justin Martin; Mintz, Jeffrey Michael; Allai, Todd
Year Published: 2020
Origin and geochemistry of formation waters from the lower Eagle Ford Group, Gulf Coast Basin, south central Texas
The lower Eagle Ford Group (LEFG) is one of the most productive continuous hydrocarbon plays in the United States but few associated produced waters data and minimal interpretation have been published. This effort focuses on results from compositional and isotopic data from 39 produced water samples collected from horizontal wells producing from...
Engle, Mark A; Doolan, Colin A.; Pitman, Janet K.; Varonka, Matthew S.; Chenault, Jessica; Orem, William H.; McMahon, Peter B.; Jubb, Aaron M.
Year Published: 2020
Trends in streamflow, nutrients, and total suspended solids in the Upper White River Basin, Indiana
The U.S. Geological Survey, in partnership with The Nature Conservancy, analyzed existing water-quality and streamflow data from three locations in the Upper White River Basin, Indiana, to estimate annual mean concentrations and fluxes and to identify and quantify changes in water quality and streamflow over time. Water-quality data used in the...
Koltun, G.F.; Hauswald, CassieAttribution: Ohio-Kentucky-Indiana Water Science Center
View Citation
Koltun, G.F., and Hauswald, C., 2020, Trends in streamflow, nutrients, and total suspended solids in the Upper White River Basin, Indiana: U.S. Geological Survey Fact Sheet 2020–3030, 6 p., https://doi.org/10.3133/fs20203030.
Year Published: 2019
Trends in streamflow and concentrations and flux of nutrients and total suspended solids in the Upper White River at Muncie, near Nora, and near Centerton, Indiana
The U.S. Geological Survey (USGS), in cooperation with The Nature Conservancy, completed a study to estimate and assess trends in streamflow and annual mean concentrations and flux of nutrients (nitrate plus nitrite, total Kjeldahl nitrogen, and total phosphorus) and total suspended solids at three USGS streamgages (hereafter referred to as “...
Koltun, G.F.Attribution: Ohio-Kentucky-Indiana Water Science Center
View Citation
Koltun, G.F., 2019, Trends in streamflow and concentrations and flux of nutrients and total suspended solids in the Upper White River at Muncie, near Nora, and near Centerton, Indiana: U.S. Geological Survey Scientific Investigations Report 2019–5119, 34 p., https://doi.org/10.3133/sir20195119.
Year Published: 2019
Flood-frequency estimates for Ohio streamgages based on data through water year 2015 and techniques for estimating flood-frequency characteristics of rural, unregulated Ohio streams
Estimates of the magnitudes of annual peak streamflows with annual exceedance probabilities of 0.5, 0.2, 0.1, 0.04, 0.02, 0.01, and 0.002 (equivalent to recurrence intervals of 2-, 5-, 10-, 25-, 50-, 100-, and 500-years, respectively) were computed for 391 streamgages in Ohio and adjacent states based on data collected through the 2015 water year...
Koltun, G.F.Attribution: Ohio-Kentucky-Indiana Water Science Center
View Citation
Koltun, G.F., 2019, Flood-frequency estimates for Ohio streamgages based on data through water year 2015 and techniques for estimating flood-frequency characteristics of rural, unregulated Ohio streams: U.S. Geological Survey Scientific Investigations Report 2019–5018, 25 p., https://doi.org/10.3133/sir20195018.
Year Published: 2017
Geospatial tools effectively estimate nonexceedance probabilities of daily streamflow at ungauged and intermittently gauged locations in Ohio
Study regionThe state of Ohio in the United States, a humid, continental climate.Study focusThe estimation of nonexceedance probabilities of daily streamflows as an alternative means of establishing the relative magnitudes of streamflows associated with hydrologic and water-quality observations.New hydrological insights for the regionSeveral...
Farmer, William H.; Koltun, G.F.View Citation
William H. Farmer, G.F. Koltun, Geospatial tools effectively estimate nonexceedance probabilities of daily streamflow at ungauged and intermittently gauged locations in Ohio, 2017, Journal of Hydrology: Regional Studies, 13, 208-221, doi: 10.1016/j.ejrh.2017.08.006.
(http://www.sciencedirect.com/science/article/pii/S2214581817300137)
Year Published: 2016
Estimation of upstream water use with Ohio’s StreamStats application
This report describes the analytical methods and results of a pilot study to enhance the Ohio StreamStats application by adding the ability to obtain water-use information for selected areas in the northeast quadrant of Ohio. Water-use estimates are determined in StreamStats through a simple multistep process. Water-use data used to develop...
Koltun, G.F.; Nardi, Mark R.; Shaffer, Kimberly H.Attribution: Water Resources, Earth Resources Observation and Science (EROS) Center, Earth Resources Observation and Science Center, United States of America, Landsat Missions, Earth Resources Observation and Science (EROS) Center, Earth Resources Observation and Science Center, United States of America, Landsat Missions, Central Midwest Water Science Center, Water Resources, Region 4: Mississippi Basin, Forest and Rangeland Ecosystem Science Center (FRESC), Water Resources, Columbia Environmental Research Center, Ecosystems, Region 4: Mississippi Basin, Minerals, National Minerals Information Center, Mineral Resources Program, Region 1: North Atlantic-Appalachian, United States of America, Water Resources, Groundwater and Streamflow Information Program, United States of America, Energy & Wildlife, United States of America, Cooperative Research Units, John Wesley Powell Center for Analysis and Synthesis, Environmental Health, Cooperative Research Units, United States of America, John Wesley Powell Center for Analysis and Synthesis, Cooperative Research Units, Cooperative Research Units, Cooperative Research Units, Wetland and Aquatic Research Center, Ecosystems, Land Change Science Program, Region 4: Mississippi Basin, United States of America, Earthquake Science Center, Natural Hazards, Earthquake Hazards Program, Water Resources, , Central Energy Resources Science Center, Energy Resources Program, Region 7: Upper Colorado Basin, Central Energy Resources Science Center, Energy Resources Program, Region 7: Upper Colorado Basin, Central Energy Resources Science Center, Energy Resources Program, Region 7: Upper Colorado Basin, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Astrogeology Science Center, Natural Hazards, , , Biology and Ecosystems, Western Fisheries Research Center, Ecosystems, Fisheries Program, United States of America, Pacific Coastal and Marine Science Center, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, , Astrogeology Science Center, Natural Hazards, , , Minerals, Geology, Geophysics, and Geochemistry Science Center, Energy and Minerals, Mineral Resources Program, Region 7: Upper Colorado Basin, Alaska, United States of America, Spectroscopy Lab, Biology and Ecosystems, Western Fisheries Research Center, Ecosystems, Fisheries Program, United States of America, California Water Science Center, Water Resources, San Francisco Bay and Sacramento-San Joaquin Delta Estuary, Northern Rocky Mountain Science Center (NOROCK), Ecosystems, , National Wildlife Health Center, Ecosystems, Alaska Science Center, Ecosystems, Region 11: Alaska, Geosciences and Environmental Change Science Center, Groundwater and Streamflow Information Program, Region 7: Upper Colorado Basin, Alaska Science Center, Ecosystems, Energy & Wildlife, Region 11: Alaska, United States of America, Biology and Ecosystems, Western Fisheries Research Center, Land Resources, Fisheries Program, United States of America, Colorado Water Science Center, Environmental Health, Toxic Substances Hydrology Program, Region 7: Upper Colorado Basin, Western Ecological Research Center, Ecosystems, , Energy and Minerals, Science and Decisions Center, Astrogeology Science Center, Natural Hazards, , , Western Ecological Research Center, Ecosystems, Northern Rocky Mountain Science Center (NOROCK), Ecosystems, Energy & Wildlife, , United States of America, Columbia Environmental Research Center, Environmental Health, Contaminant Biology Program, Region 4: Mississippi Basin, United States of America, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Great Lakes Science Center, Ecosystems, Fort Collins Science Center, Ecosystems, National Wildlife Health Center, Environmental Health, Contaminant Biology Program, United States of America, Volcano Hazards Program Office, California Water Science Center, Water Resources, Leetown Science Center, Ecosystems, Region 1: North Atlantic-Appalachian, Natural Hazards, Geologic Hazards Science Center, Natural Hazards, Landslide Hazards Program, Region 7: Upper Colorado Basin, Washington, United States of America, Biology and Ecosystems, California Water Science Center, Water Resources, Fisheries Program, California, United States of America, San Francisco Bay and Sacramento-San Joaquin Delta Estuary, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Astrogeology Science Center, Natural Hazards, , , Astrogeology Science Center, Natural Hazards, , , Water Resources, , Western Ecological Research Center, Ecosystems, , Volcano Hazards Program Office, Cooperative Research Units, , Volcano Hazards Program Office, Cooperative Research Units, Cooperative Research Units, Cooperative Research Units, Energy & Wildlife, United States of America, Cooperative Research Units, Fort Collins Science Center, Ecosystems, Fort Collins Science Center, Ecosystems, Florence Bascom Geoscience Center, Land Change Science Program, Region 1: North Atlantic-Appalachian, United States of America, Water Resources, , Earth Resources Observation and Science (EROS) Center, Earth Resources Observation and Science Center, Cooperative Research Units, Cooperative Research Units, Energy & Wildlife, United States of America, Cooperative Research Units, Environmental Health, Toxic Substances Hydrology Program, Water Resources, , Water Resources, , National Minerals Information Center, Region 1: North Atlantic-Appalachian, National Minerals Information Center, Region 1: North Atlantic-Appalachian, National Minerals Information Center, Region 1: North Atlantic-Appalachian, National Minerals Information Center, Region 1: North Atlantic-Appalachian, National Minerals Information Center, Region 1: North Atlantic-Appalachian, National Minerals Information Center, Region 1: North Atlantic-Appalachian, National Minerals Information Center, Region 1: North Atlantic-Appalachian, Water Resources, , Geology, Geophysics, and Geochemistry Science Center, Region 7: Upper Colorado Basin, United States of America, Spectroscopy Lab, , , Energy and Minerals, Science and Decisions Center, Natural Hazards, Geologic Hazards Science Center, Natural Hazards, Earthquake Hazards Program, Region 7: Upper Colorado Basin, Colorado, United States of America, Earthquake Science Center, Natural Hazards, Earthquake Hazards Program, Cooperative Research Units, Western Ecological Research Center, Ecosystems, Geology, Geophysics, and Geochemistry Science Center, Region 7: Upper Colorado Basin, Geology, Geophysics, and Geochemistry Science Center, Region 7: Upper Colorado Basin, Natural Hazards, Geologic Hazards Science Center, Natural Hazards, Geomagnetism Program, Region 7: Upper Colorado Basin, United States of America, California Water Science Center, Water Resources, Region 4: Mississippi Basin, Cooperative Research Units, Cooperative Research Units, Alaska Science Center, Region 11: Alaska, United States of America, Pennsylvania Water Science Center, Water Resources, Region 1: North Atlantic-Appalachian, National Wildlife Health Center, Ecosystems, Environmental Health, Toxic Substances Hydrology Program, , Volcano Hazards Program Office, , Alaska Science Center, Ecosystems, Region 11: Alaska, Fort Collins Science Center, Ecosystems, Upper Midwest Environmental Sciences Center, Ecosystems, Upper Midwest Environmental Sciences Center, Ecosystems, Leetown Science Center, Environmental Health, Contaminant Biology Program, Region 1: North Atlantic-Appalachian, United States of America, Natural Hazards, Geologic Hazards Science Center, Natural Hazards, Landslide Hazards Program, Region 7: Upper Colorado Basin, United States of America, Cooperative Research Units, Cooperative Research Units, Earthquake Science Center, Natural Hazards, Earthquake Hazards Program, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Earthquake Science Center, Natural Hazards, Earthquake Hazards Program, Southwest Biological Science Center, Ecosystems, , Core Science Systems, United States of America, Center of Excellence for Geospatial Information Science (CEGIS), Pacific Island Ecosystems Research Center, Ecosystems, Northwest - Pacific Islands, , Volcano Hazards Program Office, Fort Collins Science Center, Ecosystems, Pacific Coastal and Marine Science Center, , Energy and Minerals, Groundwater and Streamflow Information Program, , Energy and Minerals, Groundwater and Streamflow Information Program, Northern Rocky Mountain Science Center (NOROCK), Environmental Health, Contaminant Biology Program, , United States of America, Natural Hazards, Geologic Hazards Science Center, Natural Hazards, Landslide Hazards Program, Region 7: Upper Colorado Basin, Oregon, United States of America, Minerals, National Minerals Information Center, Mineral Resources Program, Region 1: North Atlantic-Appalachian, United States of America, Minerals, National Minerals Information Center, Mineral Resources Program, Region 1: North Atlantic-Appalachian, United States of America, Minerals, National Minerals Information Center, Mineral Resources Program, Region 1: North Atlantic-Appalachian, United States of America, Minerals, National Minerals Information Center, Mineral Resources Program, Region 1: North Atlantic-Appalachian, United States of America, Minerals, National Minerals Information Center, Mineral Resources Program, Region 1: North Atlantic-Appalachian, United States of America, Minerals, National Minerals Information Center, Mineral Resources Program, Region 1: North Atlantic-Appalachian, United States of America, Minerals, National Minerals Information Center, Mineral Resources Program, Region 1: North Atlantic-Appalachian, United States of America, Minerals, National Minerals Information Center, Mineral Resources Program, Region 1: North Atlantic-Appalachian, United States of America, Minerals, National Minerals Information Center, Mineral Resources Program, Region 1: North Atlantic-Appalachian, United States of America, Minerals, National Minerals Information Center, Mineral Resources Program, Region 1: North Atlantic-Appalachian, United States of America, Minerals, National Minerals Information Center, Mineral Resources Program, Region 1: North Atlantic-Appalachian, United States of America, Minerals, National Minerals Information Center, Mineral Resources Program, Region 1: North Atlantic-Appalachian, United States of America, Astrogeology Science Center, Natural Hazards, , , Eastern Energy Resources Science Center, Energy Resources Program, , Eastern Energy Resources Science Center, Energy Resources Program, , Eastern Energy Resources Science Center, Energy Resources Program, , United States of America, Great Lakes Science Center, Ecosystems, New York Water Science Center, Environmental Health, Toxic Substances Hydrology Program, Hurricane Sandy, Minerals, Mineral Resources Program, United States of America, Natural Hazards, Geosciences and Environmental Change Science Center, Natural Hazards, Landslide Hazards Program, Region 7: Upper Colorado Basin, Colorado, United States of America, New York Water Science Center, Environmental Health, Toxic Substances Hydrology Program, Hurricane Sandy, New England Water Science Center, Water Resources, Region 1: North Atlantic-Appalachian, New York Water Science Center, Environmental Health, Toxic Substances Hydrology Program, Hurricane Sandy, National Wildlife Health Center, Ecosystems, Natural Hazards, Geologic Hazards Science Center, Natural Hazards, Landslide Hazards Program, , United States of America, Chesapeake Bay Activities, Water Resources, Western Ecological Research Center, Ecosystems, Cooperative Research Units, Upper Midwest Water Science Center, Environmental Health, Toxic Substances Hydrology Program, Columbia Environmental Research Center, Ecosystems, Region 4: Mississippi Basin, Earthquake Science Center, Natural Hazards, Earthquake Hazards Program, Cooperative Research Units, Idaho Water Science Center, Water Resources, Idaho Water Science Center, Water Resources, Upper Midwest Water Science Center, Water Resources, Central Midwest Water Science Center, Water Resources, Region 4: Mississippi Basin, Cooperative Research Units, Great Lakes Science Center, Ecosystems, Forest and Rangeland Ecosystem Science Center (FRESC), Ecosystems, Energy & Wildlife, United States of America, St. Petersburg Coastal and Marine Science Center, Environmental Health, Toxic Substances Hydrology Program, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Earth Resources Observation and Science (EROS) Center, Earth Resources Observation and Science Center, United States of America, Land Use Land Cover Modeling, Western Geographic Science Center, Earth Resources Observation and Science (EROS) Center, Earth Resources Observation and Science Center, Water Resources, Minerals, Geology, Geophysics, and Geochemistry Science Center, Energy and Minerals, Mineral Resources Program, Missouri, United States of America, Center of Excellence for Geospatial Information Science (CEGIS), Pacific Coastal and Marine Science Center, Northern Rocky Mountain Science Center (NOROCK), Ecosystems, , Minerals, , Energy and Minerals, Groundwater and Streamflow Information Program, Nevada, Northern Rocky Mountain Science Center (NOROCK), Ecosystems, , Lower Mississippi-Gulf Water Science Center, Water Resources, Region 6: Arkansas-Rio Grande-Texas-Gulf, Natural Hazards, Geologic Hazards Science Center, Natural Hazards, Landslide Hazards Program, Region 7: Upper Colorado Basin, United States of America, Great Lakes Science Center, Ecosystems, United States of America, Northern Rocky Mountain Science Center (NOROCK), Ecosystems, , Mapping, Remote Sensing, and Geospatial Data, Geology, Minerals, Energy, and Geophysics Science Center, Energy and Minerals, Mineral Resources Program, Region 7: Upper Colorado Basin, United States of America, Climate Adaptation Science Centers, Land Resources, Climate Adaptation Science Centers, St. Petersburg Coastal and Marine Science Center, Environmental Health, Toxic Substances Hydrology Program, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Oregon Water Science Center, Water Resources, Wyoming-Montana Water Science Center, Water Resources, Cooperative Research Units, Eastern Geographic Science Center, Environmental Health, Toxic Substances Hydrology Program, Region 1: North Atlantic-Appalachian, Alaska Climate Adaptation Science Center, Land Resources, Climate Adaptation Science Centers, Region 11: Alaska, Upper Midwest Environmental Sciences Center, Ecosystems, Upper Midwest Water Science Center, Environmental Health, Toxic Substances Hydrology Program, Earth Resources Observation and Science (EROS) Center, Earth Resources Observation and Science Center, Water, John Wesley Powell Center for Analysis and Synthesis, Environmental Health, Contaminant Biology Program, United States of America, John Wesley Powell Center for Analysis and Synthesis, New Jersey Water Science Center, Water Resources, Region 1: North Atlantic-Appalachian, New Jersey, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, St. Petersburg Coastal and Marine Science Center, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Northern Rocky Mountain Science Center (NOROCK), Ecosystems, , , St. Petersburg Coastal and Marine Science Center, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), United States of America, Gulf of Mexico, Cooperative Research Units, Astrogeology Science Center, Natural Hazards, , , Eastern Energy Resources Science Center, Energy Resources Program, , United States of America, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Earthquake Science Center, Natural Hazards, Earthquake Hazards Program, Earth Resources Observation and Science (EROS) Center, Land Change Science Program, United States of America, Northern Rocky Mountain Science Center (NOROCK), Ecosystems, Climate Adaptation Science Centers, , Cooperative Research Units, Central Midwest Water Science Center, Water Resources, Region 4: Mississippi Basin, Southwest Biological Science Center, Ecosystems, , Idaho Water Science Center, Water Resources, Alaska Science Center, Region 11: Alaska, Oregon Water Science Center, Water Resources, Idaho Water Science Center, Water Resources, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Maryland-Delaware-D.C. Water Science Center, Water Resources, John Wesley Powell Center for Analysis and Synthesis, Environmental Health, Contaminant Biology Program, United States of America, John Wesley Powell Center for Analysis and Synthesis, San Francisco Bay and Sacramento-San Joaquin Delta Estuary, South Atlantic Water Science Center (SAWSC), Environmental Health, Toxic Substances Hydrology Program, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Wetland and Aquatic Research Center, Energy & Wildlife, United States of America, Gulf of Mexico, Geosciences and Environmental Change Science Center, Land Change Science Program, Region 7: Upper Colorado Basin, United States of America, Great Lakes Science Center, Ecosystems, Forest and Rangeland Ecosystem Science Center (FRESC), Ecosystems, , Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Fort Collins Science Center, Ecosystems, Northern Rocky Mountain Science Center (NOROCK), Region 7: Upper Colorado Basin, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, South Atlantic Water Science Center (SAWSC), Water Resources, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Cooperative Research Units, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Patuxent Wildlife Research Center, Environmental Health, Contaminant Biology Program, Region 1: North Atlantic-Appalachian, United States of America, Earth Resources Observation and Science (EROS) Center, Earth Resources Observation and Science Center, United States of America, Landsat Missions, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Alaska Science Center, Ecosystems, Region 11: Alaska, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Kansas Water Science Center, Water Resources, , South Atlantic Water Science Center (SAWSC), Water Resources, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Earthquake Science Center, Natural Hazards, Earthquake Hazards Program, Central Energy Resources Science Center, Energy Resources Program, Region 7: Upper Colorado Basin, Pacific Island Ecosystems Research Center, Ecosystems, Northwest - Pacific Islands, Water Resources, , California Water Science Center, Water Resources, California Water Science Center, Water Resources, Water, Ohio-Kentucky-Indiana Water Science Center, Water Resources, Region 1: North Atlantic-Appalachian, Ohio, United States of America
View Citation
Koltun, G.F., Nardi, M.R., and Shaffer, K.H., 2016, Estimation of upstream water use with Ohio’s StreamStats application: U.S. Geological Survey Scientific Investigations Report 2016–5077, 13 p., http://dx.doi.org/10.3133/sir20165077.
Year Published: 2016
Hydrologic and hydraulic analyses for the Black Fork Mohican River Basin in and near Shelby, Ohio
Hydrologic and hydraulic analyses were done for selected reaches of five streams in and near Shelby, Richland County, Ohio. The U.S. Geological Survey (USGS), in cooperation with the Muskingum Watershed Conservancy District, conducted these analyses on the Black Fork Mohican River and four tributaries: Seltzer Park Creek, Seltzer Park Tributary,...
Huitger, Carrie A.; Ostheimer, Chad J.; Koltun, G.F.Attribution: Fort Collins Science Center, Ecosystems, Minerals, Geology, Geophysics, and Geochemistry Science Center, Mineral Resources Program, Region 7: Upper Colorado Basin, Minerals, Geology, Geophysics, and Geochemistry Science Center, Mineral Resources Program, Region 7: Upper Colorado Basin, Minerals, , Energy and Minerals, Mineral Resources Program, Region 7: Upper Colorado Basin, Mauritania, Minerals, Geology, Geophysics, and Geochemistry Science Center, Energy and Minerals, Mineral Resources Program, Region 7: Upper Colorado Basin, Minerals, Alaska Science Center, Mineral Resources Program, Region 11: Alaska, Wildlife Program, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Washington Water Science Center, Water Resources, Western Ecological Research Center, Ecosystems, Southwest Biological Science Center, Ecosystems, , Cooperative Research Units, National Wildlife Health Center, Ecosystems, National Wildlife Health Center, Ecosystems, Biology and Ecosystems, Forest and Rangeland Ecosystem Science Center (FRESC), Ecosystems, Energy & Wildlife, United States of America, Geosciences and Environmental Change Science Center, Volcano Hazards Program Office, United States of America, Patuxent Wildlife Research Center, Environmental Health, Contaminant Biology Program, Region 1: North Atlantic-Appalachian, United States of America, Western Ecological Research Center, Ecosystems, Great Lakes Science Center, Ecosystems, John Wesley Powell Center for Analysis and Synthesis, Ecosystems, Region 1: North Atlantic-Appalachian, John Wesley Powell Center for Analysis and Synthesis, Fort Collins Science Center, Ecosystems, Kansas Water Science Center, Environmental Health, Toxic Substances Hydrology Program, , National Wildlife Health Center, Ecosystems, Washington Water Science Center, Water Resources, Western Geographic Science Center, Kansas Water Science Center, Water Resources, , Ecosystems, New England Water Science Center, Water Resources, Region 4: Mississippi Basin, Oregon Water Science Center, Water Resources, Idaho Water Science Center, Water Resources, Cooperative Research Units, Cooperative Research Units, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Environmental Health, Toxic Substances Hydrology Program, Pacific Coastal and Marine Science Center, Fort Collins Science Center, Ecosystems, Water Resources, Land Change Science Program, United States of America, St. Petersburg Coastal and Marine Science Center, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Alaska Science Center, Region 11: Alaska, Central Midwest Water Science Center, Water Resources, Region 4: Mississippi Basin, Northern Rocky Mountain Science Center (NOROCK), Ecosystems, United States of America, Pacific Coastal and Marine Science Center, Wetland and Aquatic Research Center, Ecosystems, Land Change Science Program, Region 4: Mississippi Basin, United States of America, St. Petersburg Coastal and Marine Science Center, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Northern Rocky Mountain Science Center (NOROCK), Ecosystems, , , Volcano Hazards Program Office, Southwest Biological Science Center, Ecosystems, , Southwest Biological Science Center, Ecosystems, , Southwest Biological Science Center, Ecosystems, , Southwest Biological Science Center, Ecosystems, , Southwest Biological Science Center, Ecosystems, , Southwest Biological Science Center, Ecosystems, , Southwest Biological Science Center, Ecosystems, , Southwest Biological Science Center, Ecosystems, , Western Ecological Research Center, Ecosystems, Sage-grouse & Sagebrush Ecosystem, United States of America, Office of Science Quality and Integrity, Forest and Rangeland Ecosystem Science Center (FRESC), Ecosystems, Southwest Biological Science Center, Ecosystems, , Northern Rocky Mountain Science Center (NOROCK), Environmental Health, Contaminant Biology Program, , United States of America, Pacific Coastal and Marine Science Center, Western Ecological Research Center, Ecosystems, Nevada Water Science Center, Water Resources, United States of America, Geosciences and Environmental Change Science Center, Groundwater and Streamflow Information Program, Region 7: Upper Colorado Basin, Forest and Rangeland Ecosystem Science Center (FRESC), Ecosystems, Southwest Biological Science Center, Ecosystems, , Oregon Water Science Center, Water Resources, Wetland and Aquatic Research Center, Ecosystems, Climate Adaptation Science Centers, Region 4: Mississippi Basin, California Water Science Center, Environmental Health, Toxic Substances Hydrology Program, California Water Science Center, Environmental Health, Toxic Substances Hydrology Program, Southwest Biological Science Center, Ecosystems, Climate Adaptation Science Centers, , Florence Bascom Geoscience Center, Land Change Science Program, Region 1: North Atlantic-Appalachian, United States of America, , Volcano Hazards Program Office, Pacific Coastal and Marine Science Center, Washington Water Science Center, Water Resources, , Water Resources, Pacific Coastal and Marine Science Center, , Volcano Hazards Program Office, Biology and Ecosystems, Western Fisheries Research Center, Ecosystems, Fisheries Program, United States of America, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Western Geographic Science Center, Climate Adaptation Science Centers, Forest and Rangeland Ecosystem Science Center (FRESC), Ecosystems, Sage-grouse & Sagebrush Ecosystem, United States of America, Alaska Climate Adaptation Science Center, Land Resources, Region 11: Alaska, Forest and Rangeland Ecosystem Science Center (FRESC), Ecosystems, Sage-grouse & Sagebrush Ecosystem, United States of America, , Water Resources, Southwest Biological Science Center, Ecosystems, , United States of America, St. Petersburg Coastal and Marine Science Center, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Hurricane Sandy, Forest and Rangeland Ecosystem Science Center (FRESC), Environmental Health, Contaminant Biology Program, United States of America, Alaska Science Center, Ecosystems, Region 11: Alaska, Great Lakes Science Center, Ecosystems, , California Water Science Center, Environmental Health, Toxic Substances Hydrology Program, Astrogeology Science Center, Natural Hazards, , , Great Lakes Science Center, Ecosystems, Caribbean-Florida Water Science Center, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Caribbean-Florida Water Science Center, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Earthquake Science Center, Natural Hazards, Earthquake Hazards Program, Forest and Rangeland Ecosystem Science Center (FRESC), Ecosystems, Energy & Wildlife, United States of America, Forest and Rangeland Ecosystem Science Center (FRESC), Ecosystems, Energy & Wildlife, United States of America, Northern Prairie Wildlife Research Center, Ecosystems, United States of America, Native Bee Inventory and Monitoring Lab, Great Lakes Science Center, Ecosystems, United States of America, , Eastern Energy Resources Science Center, Energy Resources Program, , United States of America, Wyoming-Montana Water Science Center, Water Resources, , Astrogeology Science Center, Natural Hazards, , , Astrogeology Science Center, Natural Hazards, , , Astrogeology Science Center, Natural Hazards, , , Cooperative Research Units, Virginia and West Virginia Water Science Center, Water Resources, Region 1: North Atlantic-Appalachian, Virginia, Northern Rocky Mountain Science Center (NOROCK), Ecosystems, , New York Water Science Center, Water Resources, New York Water Science Center, Water Resources, Fort Collins Science Center, Ecosystems, Great Lakes Science Center, Ecosystems, Water Resources, , Volcano Hazards Program Office, Central Energy Resources Science Center, Energy Resources Program, Region 7: Upper Colorado Basin, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Geology, Geology, Geophysics, and Geochemistry Science Center, Mineral Resources Program, Region 7: Upper Colorado Basin, United States of America, Natural Hazards, Geologic Hazards Science Center, Natural Hazards, Landslide Hazards Program, Region 7: Upper Colorado Basin, Colorado, United States of America, Utah Water Science Center, Water Resources, National Water Quality Program, Region 7: Upper Colorado Basin, Utah Water Science Center, Water Resources, Region 7: Upper Colorado Basin, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Woods Hole Coastal and Marine Science Center, Region 1: North Atlantic-Appalachian, Central Midwest Water Science Center, Water Resources, Region 4: Mississippi Basin, Upper Midwest Environmental Sciences Center, Ecosystems, New England Water Science Center, Water Resources, Region 1: North Atlantic-Appalachian, , , Natural Hazards, Geologic Hazards Science Center, Natural Hazards, Earthquake Hazards Program, Region 7: Upper Colorado Basin, Chile, Southwest Biological Science Center, Ecosystems, , Southwest Biological Science Center, Ecosystems, , Forest and Rangeland Ecosystem Science Center (FRESC), Ecosystems, Southwest Biological Science Center, Ecosystems, Sage-grouse & Sagebrush Ecosystem, , United States of America, Fort Collins Science Center, Ecosystems, Southwest Biological Science Center, Ecosystems, , Eastern Energy Resources Science Center, Energy Resources Program, , United States of America, Great Lakes Science Center, Ecosystems, Pacific Coastal and Marine Science Center, Western Ecological Research Center, Ecosystems, Water, Ohio-Kentucky-Indiana Water Science Center, Indiana, United States of America, Water, Ohio-Kentucky-Indiana Water Science Center, Water Resources, Region 1: North Atlantic-Appalachian, Ohio, United States of America
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Huitger, C.A, Ostheimer, C.J., and Koltun, G.F., 2016, Hydrologic and hydraulic analyses for the Black Fork Mohican River Basin in and near Shelby, Ohio: U.S. Geological Survey Scientific Investigations Report 2015–5187, 39 p., 2 appendixes, http://dx.doi.org/10.3133/sir20155187.
Year Published: 2015
Hydrologic effects of potential changes in climate, water use, and land cover in the Upper Scioto River Basin, Ohio
This report presents the results of a study to provide information on the hydrologic effects of potential 21st-century changes in climate, water use, and land cover in the Upper Scioto River Basin, Ohio (from Circleville, Ohio, to the headwaters). A precipitation-runoff model, calibrated on the basis of historical climate and streamflow data, was...
Ebner, Andrew D.; Koltun, G.F.; Ostheimer, Chad J.
Year Published: 2015
An evaluation of the accuracy of modeled and computed streamflow time-series data for the Ohio River at Hannibal Lock and Dam and at a location upstream from Sardis, Ohio
Between July 2013 and June 2014, the U.S. Geological Survey (USGS) made 10 streamflow measurements on the Ohio River about 1.5 miles (mi) downstream from the Hannibal Lock and Dam (near Hannibal, Ohio) and 11 streamflow measurements near the USGS Sardis gage (station number 03114306) located approximately 2.4 mi upstream from Sardis, Ohio. The...
Koltun, G.F.
Year Published: 2014
An analysis of potential water availability from the Charles Mill, Clendening, Piedmont, Pleasant Hill, Senecaville, and Wills Creek Lakes in the Muskingum River Watershed, Ohio
This report presents the results of a study to assess potential water availability from the Charles Mill, Clendening, Piedmont, Pleasant Hill, Senecaville, and Wills Creek Lakes, located within the Muskingum River Watershed, Ohio. The assessment was based on the criterion that water withdrawals should not appreciably affect maintenance of...
Koltun, G.F.Attribution: Water, Ohio-Kentucky-Indiana Water Science Center, Water Resources, Region 1: North Atlantic-Appalachian, Ohio, United States of America
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An analysis of potential water availability from the Charles Mill, Clendening, Piedmont, Pleasant Hill, Senecaville, and Wills Creek Lakes in the Muskingum River Watershed, Ohio; 2014; SIR; 2014-5071; Koltun, G. F.
Year Published: 2013
An analysis of potential water availability from the Atwood, Leesville, and Tappan Lakes in the Muskingum River Watershed, Ohio
This report presents the results of a study to assess potential water availability from the Atwood, Leesville, and Tappan Lakes, located within the Muskingum River Watershed, Ohio. The assessment was based on the criterion that water withdrawals should not appreciably affect maintenance of recreation-season pool levels in current use. To...
Koltun, G.F.Attribution: Water, Ohio-Kentucky-Indiana Water Science Center, Water Resources, Region 1: North Atlantic-Appalachian, Ohio, United States of America
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An analysis of potential water availability from the Atwood, Leesville, and Tappan Lakes in the Muskingum River Watershed, Ohio; 2013; SIR; 2013-5112; Koltun, Greg F.
Date published: August 21, 2019
GCLAS (Graphical Constituent Loading Analysis System): A tool for computing loads of constituents transported in rivers
GCLAS is a program designed to compute daily and annual loadings of constituents transported in rivers.
Attribution: Water Resources, Ohio-Kentucky-Indiana Water Science Center