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Region(s) of distribution of Snake Prickleback (Lumpenus sagitta) Wilimovsky, 1956 in the Arctic as digitized for U.S. Geological Survey Scientific Investigations Report 2016-5038. For details on the project and purpose, see the report at https://doi.org/10.3133/sir20165038. Complete metadata for the collection of species datasets is in the metadata document "Dataset_for_Alaska_Marine_Fish_Ecology_Catalog.xml" at https://doi.org/10.5066/F7M61HD7. Source(s) for this digitized data layer are listed in the metadata Process Steps section. Note that the original source may show an extended area; some datasets were limited to the published map boundary. Distributions of marine fishes are shown in adjacent Arctic seas...
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Region(s) of distribution of Coho Salmon (Oncorhynchus kisutch) (Walbaum, 1792) in the Arctic as digitized for U.S. Geological Survey Scientific Investigations Report 2016-5038. For details on the project and purpose, see the report at https://doi.org/10.3133/sir20165038. Complete metadata for the collection of species datasets is in the metadata document "Dataset_for_Alaska_Marine_Fish_Ecology_Catalog.xml" at https://doi.org/10.5066/F7M61HD7. Source(s) for this digitized data layer are listed in the metadata Process Steps section. Note that the original source may show an extended area; some datasets were limited to the published map boundary. Distributions of marine fishes are shown in adjacent Arctic seas where...
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The travel time map was generated using the Pedestrian Evacuation Analyst model from the USGS. The travel time analysis uses ESRI's Path Distance tool to find the shortest distance across a cost surface from any point in the hazard zone to a safe zone. This cost analysis considers the direction of movement and assigns a higher cost to steeper slopes, based on a table contained within the model. The analysis also adds in the energy costs of crossing different types of land cover, assuming that less energy is expended walking along a road than walking across a sandy beach. To produce the time map, the evacuation surface output from the model is grouped into 1-minute increments for easier visualization. The times in...
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Alcoves are small embayments found along a river's edge. They are found at the downstream end of gravel bars, tributary confluences, and other localized channel expansions. Alcoves generally have low velocities because they are protected from the main current, though they may "wash out" at higher flows. Alcoves are a type of off-channel habitat that are used by juvenile salmon for rearing.
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From 2013 to 2015, bathymetric surveys of New York City’s six West of Hudson reservoirs (Ashokan, Cannonsville, Neversink, Pepacton, Rondout, and Schoharie) were performed to provide updated capacity tables and bathymetric maps. Depths were surveyed with a single-beam echo sounder and real-time kinematic global positioning system (RTK-GPS) along planned transects at predetermined intervals for each reservoir. A separate set of echo sounder data was collected along transects at oblique angles to the main transects for accuracy assessment. Field survey data was combined with water-surface elevations in a geographic information system to create three-dimensional surfaces representing reservoir-bed elevations in the...
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From 2013 to 2015, bathymetric surveys of New York City’s six West of Hudson reservoirs (Ashokan, Cannonsville, Neversink, Pepacton, Rondout, and Schoharie) were performed to provide updated capacity tables and bathymetric maps. Depths were surveyed with a single-beam echo sounder and real-time kinematic global positioning system (RTK-GPS) along planned transects at predetermined intervals for each reservoir. A separate set of echo sounder data was collected along transects at oblique angles to the main transects for accuracy assessment. Field survey data was combined with water-surface elevations in a geographic information system to create three-dimensional surfaces representing reservoir-bed elevations in the...
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This represents the flowline network in Sagina Bay Restoration Assessment (SBRA). It is attributed with the number of disconnections between the reach and the connecting river system. These data will help identify the condition of hydrologic separation between potential restoration areas and the connecting river system. Low numbers represent fewer disconnections such as culverts between the reach and the rivers requiring no flow network modification to restore the area. These data include parameter inputs from external sources current to 2016. For an updated data set, including parameter inputs up to 2023, please see: Jaenicke, M.E., Hopkins, A.L., Kowalski, K.P., Bozimowski, A.A., and Sanocki, C.A., 2024, Saginaw...
Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Artificial Path, Canal / Ditch, FWHydrography, Great Lakes, Hydrography, All tags...
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This dataset is the output of a python script/ArcGIS model that identifes dikes as having a difference in elevation above a certain threshold. If the elevation difference was below a certain threshold the area was not considered a dike; however, if the difference in elevation between two points was significantly high then the area was marked as a dike. Areas continuous with eachother were considered part of the same dike. Post processing occured. Users examined the data output, comparing the proposed dike locations to aerial imagery, flowline data, and the DEM. Dikes that appeared to be false positives were deleted from the data set. These data include parameter inputs from external sources current to 2016. For...
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Shapefile containing the boundary of the Southwest Climate Adaptation Science Center (CASC).
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The dataset delineates ecological sections within California deserts. These deserts occupy the southeastern portion of California and include two ecoregional provinces comprised of five desert regions ("ecological sections"; Miles and Goudey 1997). The American Semi-Desert and Desert Province (warm deserts) includes the Mojave Desert, Sonoran Desert, and Colorado Desert sections in the southern 83% of the California desert. The Intermountain Semi-Desert Province (cold deserts) includes the Southeastern Great Basin and Mono sections in the northern 17% of the region.
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Bathymetric and hydraulic data were collected August 26-28, 1996, on the Tanana River at Big Delta, Alaska, at the Richardson Highway bridge and Trans-Alaska Pipeline crossing. Erosion along the right (north) bank of the river between the bridge and the pipeline crossing prompted the data collection. A water-surface profile hydraulic model for the 100- and 500-year recurrence-interval floods was developed using surveyed information. The Delta River enters the Tanana immediately downstream of the highway bridge, causing backwater that extends upstream of the bridge. Four scenarios were considered to simulate the influence of the backwater on flow through the bridge. Contraction and pier scour were computed from model...
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Points representing locations of wells in which water levels were measured, and values of water-level altitudes above the National Geodetic Vertical Datum of 1929 for June 1 to November 30 (hereafter defined as "fall") and December 1 to May 31 (hereafter defined as "spring"), 2002, 2008, and 2015 in the Lower Arkansas River Valley, Southeastern Colorado. Water-level values, John Martin Reservoir lake levels, and land surface altitudes at monitoring wells were gathered from the U.S. Geological Survey National Water Information System (NWIS) and the U.S. Army Corps of Engineers. All geoprocessing was done using ArcGIS Desktop v10 (Environmental Systems Research Institute, 2011).
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These data represent the extent and spatial distribution of irrigated acreage delineated from maximum Normalized Difference Vegetation Index (NDVI) derived from Landsat scenes in the Walker River Basin, California and Nevada, at five-year intervals from 1975-2010. The field boundaries in this data set are digitized from one-year composite maximum NDVI data derived from atmospherically corrected Landsat 2 Multispectral Scanner (MSS), Landsat 5 MSS, and Landsat 5 Thematic Mapper (TM) scenes. NDVI was calculated from the corrected reflectance data for each selected scene during the growing season (May through early October) and a single, composite image of maximum NDVI values was derived for each 5-year interval. Selecting...
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Region(s) of distribution of Marbled Eelpout (Lycodes raridens) Taranetz & Andriashev, 1937 in the Arctic as digitized for U.S. Geological Survey Scientific Investigations Report 2016-5038. For details on the project and purpose, see the report at https://doi.org/10.3133/sir20165038. Complete metadata for the collection of species datasets is in the metadata document "Dataset_for_Alaska_Marine_Fish_Ecology_Catalog.xml" at https://doi.org/10.5066/F7M61HD7. Source(s) for this digitized data layer are listed in the metadata Process Steps section. Note that the original source may show an extended area; some datasets were limited to the published map boundary. Distributions of marine fishes are shown in adjacent Arctic...
map background search result map search result map Regional geochemical results from the analyses of rock, soil, and vegetation samples - Big Delta B-2 quadrangle, Alaska Total particulate carbon (TPC), particulate inorganic carbon (PIC), particulate organic carbon (POC), and total particulate nitrogen (TPN) Water and sediment quality in the Yukon river Basin, Alaska, during water year 2004 Hydraulic Survey and Scour Assessment of Bridge 524, Tanana River at Big Delta, Alaska 2018 Southwest Climate Adaptation Science Center Boundary Elevation Contours, East Basin of Ashokan Reservoir, 2013 to 2014 Elevation Contours, Schoharie Reservoir, 2014 Saginaw Bay Restoration Assessment Degree Flowlines (2016) Saginaw Bay Restoration Assessment Dikes (2016) Ecoregion sections of California deserts Marine Arctic point distribution of Snake Prickleback (Lumpenus sagitta) Wilimovsky, 1956 Marine Arctic polygon distribution of Marbled Eelpout (Lycodes raridens) Taranetz & Andriashev, 1937 Marine Arctic polygon distribution of Coho Salmon (Oncorhynchus kisutch) (Walbaum, 1792) Tsunami Evacuation Travel Time Map for Del Norte County, CA, 2010, for Bridges Removed and a Slow Walking Speed Cottonwood Lake Study Area-Wetland Vegetation Zones-1984 Cottonwood Lake Study Area-Wetland Vegetation Zones-2002 Cottonwood Lake Study Area-Wetland Vegetation Zones-2007 Cottonwood Lake Study Area-Wetland Vegetation Zones-2015 Lower Cedar Alcoves 2013 Wells and water-level altitude in the alluvium in the Lower Arkansas River Valley, Southeast Colorado, Spring and Fall 2002, 2008, and 2015 Irrigated Acreage Delineated from Landsat-Derived Maximum Normalized Difference Vegetation Index (NDVI) 1975-2010, Walker River Basin Nevada and California Cottonwood Lake Study Area-Wetland Vegetation Zones-1984 Cottonwood Lake Study Area-Wetland Vegetation Zones-2015 Cottonwood Lake Study Area-Wetland Vegetation Zones-2007 Cottonwood Lake Study Area-Wetland Vegetation Zones-2002 Elevation Contours, Schoharie Reservoir, 2014 Lower Cedar Alcoves 2013 Elevation Contours, East Basin of Ashokan Reservoir, 2013 to 2014 Tsunami Evacuation Travel Time Map for Del Norte County, CA, 2010, for Bridges Removed and a Slow Walking Speed Regional geochemical results from the analyses of rock, soil, and vegetation samples - Big Delta B-2 quadrangle, Alaska Irrigated Acreage Delineated from Landsat-Derived Maximum Normalized Difference Vegetation Index (NDVI) 1975-2010, Walker River Basin Nevada and California Saginaw Bay Restoration Assessment Dikes (2016) Saginaw Bay Restoration Assessment Degree Flowlines (2016) Hydraulic Survey and Scour Assessment of Bridge 524, Tanana River at Big Delta, Alaska Ecoregion sections of California deserts 2018 Southwest Climate Adaptation Science Center Boundary Total particulate carbon (TPC), particulate inorganic carbon (PIC), particulate organic carbon (POC), and total particulate nitrogen (TPN) Water and sediment quality in the Yukon river Basin, Alaska, during water year 2004 Marine Arctic polygon distribution of Marbled Eelpout (Lycodes raridens) Taranetz & Andriashev, 1937 Marine Arctic polygon distribution of Coho Salmon (Oncorhynchus kisutch) (Walbaum, 1792)