100+ datasets found
  1. Terrain - Slope Map

    • hub.arcgis.com
    • pacificgeoportal.com
    • +2more
    Updated Dec 31, 2013
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    Esri (2013). Terrain - Slope Map [Dataset]. https://hub.arcgis.com/datasets/a1ba14d09df14f42ad6ca3c4bcebf3b4
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    Dataset updated
    Dec 31, 2013
    Dataset authored and provided by
    Esrihttp://esri.com/
    Area covered
    Description

    This map provides a colorized representation of slope, generated dynamically using server-side slope function on the Terrain layer. The degree of slope steepness is depicted by light to dark colors - flat surfaces as gray, shallow slopes as light yellow, moderate slopes as light orange and steep slopes as red-brown. A scaling is applied to slope values to generate appropriate visualization at each map scale. This service should only be used for visualization, such as a base layer in applications or maps. Note: If access to non-scaled slope values is required, use the Slope Degrees or Slope Percent functions, which return values from 0 to 90 degrees, or 0 to 1000%, respectively.Units: DegreesUpdate Frequency: QuarterlyCoverage: World/GlobalData Sources: This layer is compiled from a variety of best available sources from several data providers. To see the coverage and extents of various datasets comprising this service in an interactive map, see World Elevation Coverage Map.What can you do with this layer?Use for Visualization: Yes. This colorized slope is appropriate for visualizing the steepness of the terrain at all map scales. This layer can be added to applications or maps to enhance contextual understanding. Use for Analysis: No. 8 bit color values returned by this service represent scaled slope values. For analysis with non-scaled values, use the Slope Degrees or Slope Percent functions.For more details such as Data Sources, Mosaic method used in this layer, please see the Terrain layer. This layer allows query, identify, and export image requests. The layer is restricted to a 5,000 x 5,000 pixel limit in a single export image request.

    This layer is part of a larger collection of elevation layers that you can use to perform a variety of mapping analysis tasks.

  2. a

    Terrain: Slope Map

    • idaho-epscor-gem3-uidaho.hub.arcgis.com
    Updated Jun 30, 2021
    + more versions
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    University of Idaho (2021). Terrain: Slope Map [Dataset]. https://idaho-epscor-gem3-uidaho.hub.arcgis.com/datasets/terrain-slope-map/about
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    Dataset updated
    Jun 30, 2021
    Dataset authored and provided by
    University of Idaho
    Area covered
    Description

    This map provides a colorized representation of slope, generated dynamically using server-side slope function on Terrain service. The degree of slope steepness is depicted by light to dark colors - flat surfaces as gray, shallow slopes as light yellow, moderate slopes as light orange and steep slopes as red-brown. A scaling is applied to slope values to generate appropriate visualization at each map scale. This service should only be used for visualization, such as a base layer in applications or maps. If access to non-scaled slope values is required, use the Slope Degrees or Slope percent functions, which return values from 0 to 90 degrees, or 0 to 1000%, respectively.What can you do with this layer?Use for Visualization: Yes. This colorized slope is appropriate for visualizing the steepness of the terrain at all map scales. This layer can be added to applications or maps to enhance contextual understanding. Use for Analysis: No. 8 bit color values returned by this service represent scaled slope values. For analysis with non-scaled values, use the Slope Degrees or Slope percent functions.For more details such as Data Sources, Mosaic method used in this layer, please see the Terrain layer. This layer allows query, identify, and export image requests. The layer is restricted to a 5,000 x 5,000 pixel limit in a single export image request.This layer is part of a larger collection of elevation layers that you can use to perform a variety of mapping analysis tasks.

  3. Steepness of Slope

    • ourenvironment.scinfo.org.nz
    Updated Jan 20, 2021
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    Manaaki Whenua - Landcare Research (2021). Steepness of Slope [Dataset]. https://ourenvironment.scinfo.org.nz/maps-and-tools/app/Landscape/slope
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    Dataset updated
    Jan 20, 2021
    Dataset authored and provided by
    Manaaki Whenua - Landcare Researchhttps://www.landcareresearch.co.nz/
    Description

    Slope angle is calculated from the change in elevation over distance. In this case distance equals pixel size (resolution). Slope angle is expressed in degrees from the horizontal. This slope data is generated using Manaaki Whenua's 15m resolution Digital Elevation Model (DEM) and moving a 3x3 pixel neighbourhood across the DEM calculating the slope angle for each of the central pixels from the elevation differences to its neighbours.

  4. n

    Hallakort / Slope map

    • gatt.natt.is
    • catalogue.arctic-sdi.org
    • +1more
    Updated Jul 11, 2024
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    Institute of Nature Research (2024). Hallakort / Slope map [Dataset]. https://gatt.natt.is/geonetwork/srv/api/records/f35cd4eb-2574-47c3-ae2c-607aca1d97ec
    Explore at:
    www:link-1.0-http--link, ogc:wms-1.3.0-http-get-capabilitiesAvailable download formats
    Dataset updated
    Jul 11, 2024
    Dataset provided by
    Institute of Nature Research
    License

    Attribution 4.0 (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/
    License information was derived automatically

    Area covered
    Description

    Slope map of Iceland (in Degrees and Percent units).

    The slope gradient (slope, slope steepness) identifies the steepest downhill slope for a location in a surface: “the inclination of the land surface with respect to the horizontal plane”

    Basic local land-surface parameters. First partial derivative from surface.

  5. Shoreline Slope Stability

    • geo.wa.gov
    • data-wutc.opendata.arcgis.com
    • +1more
    Updated Mar 22, 2004
    + more versions
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    Washington State Department of Ecology (2004). Shoreline Slope Stability [Dataset]. https://geo.wa.gov/maps/7791d3fb452e4d77a08b47e5d9c5f3a1
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    Dataset updated
    Mar 22, 2004
    Dataset authored and provided by
    Washington State Department of Ecologyhttps://ecology.wa.gov/
    Area covered
    Description

    The digital maps presented here were originally published as hard copy maps in the Coastal Zone Atlas of Washington between 1978 and 1980. Although the Atlas has been out of print for many years, the maps contain information that remain the basis for local planning decisions. After receiving multiple requests for electronic versions of portions of the Atlas, an effort was made to scan, georeference and digitize aspects of the Atlas, beginning with the slope stability maps. These maps indicate the relative stability of coastal slopes as interpreted by geologists based on aerial photographs, geological mapping, topography, and field observations. Such methods are standard, but may occasionally result in some unstable areas being overlooked and in some stable areas being incorrectly identified as unstable. Further inaccuracies are introduced to the data through the process of converting the published maps into digital format. Important land use or building decisions should always be based on detailed geotechnical investigations. This mapping represents conditions observed in the early and mid-1970s. Shorelines and steep slopes are dynamic areas and many landslides have occurred since that time that are not reflected on these maps. Subsequent human activities may have increased or decreased the stability of some areas.

  6. G

    High Resolution Digital Elevation Model (HRDEM) - CanElevation Series

    • open.canada.ca
    • catalogue.arctic-sdi.org
    • +1more
    esri rest, geotif +5
    Updated Jun 17, 2025
    + more versions
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    Natural Resources Canada (2025). High Resolution Digital Elevation Model (HRDEM) - CanElevation Series [Dataset]. https://open.canada.ca/data/en/dataset/957782bf-847c-4644-a757-e383c0057995
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    shp, geotif, html, pdf, esri rest, json, kmzAvailable download formats
    Dataset updated
    Jun 17, 2025
    Dataset provided by
    Natural Resources Canada
    License

    Open Government Licence - Canada 2.0https://open.canada.ca/en/open-government-licence-canada
    License information was derived automatically

    Description

    The High Resolution Digital Elevation Model (HRDEM) product is derived from airborne LiDAR data (mainly in the south) and satellite images in the north. The complete coverage of the Canadian territory is gradually being established. It includes a Digital Terrain Model (DTM), a Digital Surface Model (DSM) and other derived data. For DTM datasets, derived data available are slope, aspect, shaded relief, color relief and color shaded relief maps and for DSM datasets, derived data available are shaded relief, color relief and color shaded relief maps. The productive forest line is used to separate the northern and the southern parts of the country. This line is approximate and may change based on requirements. In the southern part of the country (south of the productive forest line), DTM and DSM datasets are generated from airborne LiDAR data. They are offered at a 1 m or 2 m resolution and projected to the UTM NAD83 (CSRS) coordinate system and the corresponding zones. The datasets at a 1 m resolution cover an area of 10 km x 10 km while datasets at a 2 m resolution cover an area of 20 km by 20 km. In the northern part of the country (north of the productive forest line), due to the low density of vegetation and infrastructure, only DSM datasets are generally generated. Most of these datasets have optical digital images as their source data. They are generated at a 2 m resolution using the Polar Stereographic North coordinate system referenced to WGS84 horizontal datum or UTM NAD83 (CSRS) coordinate system. Each dataset covers an area of 50 km by 50 km. For some locations in the north, DSM and DTM datasets can also be generated from airborne LiDAR data. In this case, these products will be generated with the same specifications as those generated from airborne LiDAR in the southern part of the country. The HRDEM product is referenced to the Canadian Geodetic Vertical Datum of 2013 (CGVD2013), which is now the reference standard for heights across Canada. Source data for HRDEM datasets is acquired through multiple projects with different partners. Since data is being acquired by project, there is no integration or edgematching done between projects. The tiles are aligned within each project. The product High Resolution Digital Elevation Model (HRDEM) is part of the CanElevation Series created in support to the National Elevation Data Strategy implemented by NRCan. Collaboration is a key factor to the success of the National Elevation Data Strategy. Refer to the “Supporting Document” section to access the list of the different partners including links to their respective data.

  7. Terrain - Slope Percent

    • hub.arcgis.com
    • cacgeoportal.com
    Updated Oct 3, 2022
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    Esri (2022). Terrain - Slope Percent [Dataset]. https://hub.arcgis.com/datasets/304e82c39ca14273b41c26f07e692e93
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    Dataset updated
    Oct 3, 2022
    Dataset authored and provided by
    Esrihttp://esri.com/
    Area covered
    Description

    This layer provides slope percent rise values calculated dynamically from the elevation data (within the current extents) using the server-side slope function applied on the Terrain layer. Percent of slope is determined by dividing the amount of elevation change by the amount of horizontal distance covered (sometimes referred to as "the rise divided by the run"), and then multiplying the result by 100. The values range from 0 to essentially infinity. When the slope angle equals 45 degrees, the rise is equal to the run. Expressed as a percentage, the slope of this angle is 100 percent. As the slope approaches vertical (90 degrees), the percentage slope approaches infinity.Units: Percent (%)Update Frequency: QuarterlyCoverage: World/GlobalData Sources: This layer is compiled from a variety of best available sources from several data providers. To see the coverage and extents of various datasets comprising this service in an interactive map, see World Elevation Coverage Map.

    WARNING: Slope is computed in the projection specified by the client software. The server resamples the elevation data to the requested projection and pixel size and then computes slope. Slope should be requested in a projection that maintains correct scale in x and y directions for the area of interest. Using geographic coordinates will give incorrect results. For the WGS84 Mercator and WGS Web Mercator (auxiliary sphere) projections used by many web applications, a correction factor has been included to correct for latitude-dependent scale changes.What can you do with this layer?Use for Visualization: No. This image service provides numeric values indicating terrain characteristics. Due to the limited range of values, this service is not generally appropriate for visual interpretation, unless the client application applies an additional color map. Use for Analysis: Yes. This layer provides numeric values indicating slope percent, calculated based on the defined cell size. Cell size has an effect on the slope values. There is a limit of 5000 rows x 5000 columns. For Slope values in degrees, use Terrain - Slope Degrees layer. For more details such as Data Sources, Mosaic method used in this layer, please see the Terrain layer. This layer allows query, identify, and export image requests. The layer is restricted to a 5,000 x 5,000 pixel limit in a single export image request.This layer is part of a larger collection of elevation layers that you can use to perform a variety of mapping analysis tasks.

  8. a

    India: Slope GMTED

    • hub.arcgis.com
    • up-state-observatory-esriindia1.hub.arcgis.com
    Updated Jan 31, 2022
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    GIS Online (2022). India: Slope GMTED [Dataset]. https://hub.arcgis.com/maps/e33f75f428824a2091ee2b814c0e4e2b
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    Dataset updated
    Jan 31, 2022
    Dataset authored and provided by
    GIS Online
    Area covered
    Description

    This layer provides slope values calculated from elevation data. The values are integer and represent the angle of the downward sloping terrain from 0 (flat) to 90 degrees (vertical). The layer is designed for use in landscape-scale analysis.Dataset SummaryThis layer provides access to a 250m cell-sized raster of slope in degrees. The layer was created with the ArcGIS Slope Tool using the GMTED elevation layer as an input. The layer was created in 2014 by Esri.What can you do with this layer?This layer is suitable for both visualization and analysis. It can be used in ArcGIS Online in web maps and applications and can be used in ArcGIS Desktop.This layer has query, identify, and export image services available. This layer is restricted to a maximum area of 16,000 x 16,000 pixels - an area 4,000 kilometers on a side or an area approximately the size of Europe. The source data for this layer are available here.This layer is part of a larger collection of landscape layers that you can use to perform a wide variety of mapping and analysis tasks.The Living Atlas of the World provides an easy way to explore the landscape layers and many other beautiful and authoritative maps on hundreds of topics.

  9. a

    NC Digital Elevation Model - Slope

    • nc-onemap-2-nconemap.hub.arcgis.com
    • nconemap.gov
    Updated Aug 14, 2023
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    NC OneMap / State of North Carolina (2023). NC Digital Elevation Model - Slope [Dataset]. https://nc-onemap-2-nconemap.hub.arcgis.com/datasets/1a34a2d9b60d4826956322af8a810c0e
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    Dataset updated
    Aug 14, 2023
    Dataset authored and provided by
    NC OneMap / State of North Carolina
    License

    https://www.nconemap.gov/pages/termshttps://www.nconemap.gov/pages/terms

    Area covered
    North Carolina,
    Description

    A layer showing degrees of slope derived from Digital Elevation Models (DEMs) with a 3ft. grid cell size. Steepness is represented in degrees. The range of values is 0 degrees (flat) to 90 degrees (vertical). Data used to create the DEMs was derived from LiDAR collected by the NC Floodplain Mapping Program and processed by NC Department of Public Safety - Division of Emergency Management.Download county-based DEMs from the NC OneMap Direct Data Downloads. Data should not be downloaded using the map on the dataset's item page.

  10. n

    Stefnukort / Aspect map

    • gatt.natt.is
    • gatt.lmi.is
    • +1more
    Updated Jul 11, 2024
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    Institute of Nature Research (2024). Stefnukort / Aspect map [Dataset]. https://gatt.natt.is/geonetwork/srv/api/records/efb28f60-f63a-4671-aa05-b5468c128641
    Explore at:
    www:link-1.0-http--link, ogc:wms-1.3.0-http-get-capabilitiesAvailable download formats
    Dataset updated
    Jul 11, 2024
    Dataset provided by
    Institute of Nature Research
    License

    Attribution 4.0 (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/
    License information was derived automatically

    Area covered
    Description

    Slope aspect map of Iceland.

    This tool calculates slope aspect (i.e. slope orientation in degrees clockwise from north) for each grid cell in an input digital elevation model (DEM). “Aspect values indicate the directions the physical slopes face.” The values of each cell in the output raster indicate the compass direction the surface faces at that location. It is measured clockwise in degrees from 0 (due north) to 360 (again due north), coming full circle. Flat areas having no downslope direction are given a value of -1.

  11. Terrain - Slope Degrees

    • cacgeoportal.com
    • ai-climate-hackathon-global-community.hub.arcgis.com
    • +3more
    Updated Apr 11, 2014
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    Esri (2014). Terrain - Slope Degrees [Dataset]. https://www.cacgeoportal.com/datasets/af25a795273440deb449b336543602be
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    Dataset updated
    Apr 11, 2014
    Dataset authored and provided by
    Esrihttp://esri.com/
    Area covered
    Description

    This layer provides slope values in degrees calculated dynamically from the elevation data (within the current extents) using the server-side slope function applied on the Terrain layer. The values are integer and represent the angle of the downward sloping terrain (0 to 90 degrees). Note: slope is a function of the pixel size of the request, so at smaller scales the slope values are smaller as pixel sizes increase. Units: DegreesUpdate Frequency: QuarterlyCoverage: World/GlobalData Sources: This layer is compiled from a variety of best available sources from several data providers. To see the coverage and extents of various datasets comprising this service in an interactive map, see World Elevation Coverage Map.WARNING: Slope is computed in the projection specified by the client software. The server resamples the elevation data to the requested projection and pixel size and then computes slope. Slope should be requested in a projection that maintains correct scale in x and y directions for the area of interest. Using geographic coordinates will give incorrect results. For the WGS84 Mercator and WGS Web Mercator (auxiliary sphere) projections used by many web applications, a correction factor has been included to correct for latitude-dependent scale changes.What can you do with this layer?Use for Visualization: No. This image service provides numeric values indicating terrain characteristics. Due to the limited range of values, this service is not generally appropriate for visual interpretation, unless the client application applies an additional color map. For use in visualization, use the Terrain: Slope Map. Use for Analysis: Yes. This layer provides numeric values indicating the average slope angle within a raster cell, calculated based on the defined cell size. Cell size has an effect on the slope values. There is a limit of 5000 rows x 5000 columns. For Slope values in Percent, use Terrain - Slope Percent layer.For more details such as Data Sources, Mosaic method used in this layer, please see the Terrain layer. This layer allows query, identify, and export image requests. The layer is restricted to a 5,000 x 5,000 pixel limit in a single export image request.

    This layer is part of a larger collection of elevation layers that you can use to perform a variety of mapping analysis tasks.

  12. s

    Slope maps of the San Francisco Bay region, California: a digital database...

    • cinergi.sdsc.edu
    • catalog.data.gov
    Updated Jan 1, 1998
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    Pike, R.J. (1998). Slope maps of the San Francisco Bay region, California: a digital database (NGMDB) [Dataset]. http://cinergi.sdsc.edu/geoportal/rest/metadata/item/1d770a698a244d8fbb2bd65eaa5dc765/html
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    Dataset updated
    Jan 1, 1998
    Dataset provided by
    Pike, R.J.
    Graham, S.E.
    Area covered
    Description

    This record is maintained in the National Geologic Map Database (NGMDB). The NGMDB is a Congressionally mandated national archive of geoscience maps, reports, and stratigraphic information, developed according to standards defined by the cooperators, i.e., the USGS and the Association of American State Geologists (AASG). Included in this system is a comprehensive set of publication citations, stratigraphic nomenclature, downloadable content, unpublished source information, and guidance on standards development. The NGMDB contains information on more than 90,000 maps and related geoscience reports published from the early 1800s to the present day, by more than 630 agencies, universities, associations, and private companies. For more information, please see http://ngmdb.usgs.gov/.

  13. g

    Overview of slope deformations mapping

    • micka.geology.cz
    Updated Apr 24, 2025
    + more versions
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    Overview of slope deformations mapping [Dataset]. https://micka.geology.cz/en/record/basic/5b30f8d0-0b28-4ca5-b87a-3b8b0a010852
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    Dataset updated
    Apr 24, 2025
    Dataset authored and provided by
    Czech Geological Survey
    License

    http://inspire.ec.europa.eu/metadata-codelist/ConditionsApplyingToAccessAndUse/noConditionsApplyhttp://inspire.ec.europa.eu/metadata-codelist/ConditionsApplyingToAccessAndUse/noConditionsApply

    Area covered
    Description

    ArcGIS Server service provides an overview of slope deformations mapping (landslide e.g.) in the Czech Republic.

  14. E

    SRTM Slope DEM for Great Britain

    • find.data.gov.scot
    • dtechtive.com
    xml, zip
    Updated Feb 20, 2017
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    University of Edinburgh (2017). SRTM Slope DEM for Great Britain [Dataset]. http://doi.org/10.7488/ds/1720
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    zip(98.53 MB), xml(0.0041 MB)Available download formats
    Dataset updated
    Feb 20, 2017
    Dataset provided by
    University of Edinburgh
    License

    ODC Public Domain Dedication and Licence (PDDL) v1.0http://www.opendatacommons.org/licenses/pddl/1.0/
    License information was derived automatically

    Area covered
    United Kingdom
    Description

    This SRTM Slope Map was created from level 1 SRTM NASA data which was cleaned and had holes patched. The slope map was created in ArcMap (presumably using the simple 3x3 nearest neighbour method). The data does not include the Shetland Islands as SRTM data becomes unreliable at 60N. The cell size is close to 90m. Data was acquired between the 11th - 20th Feb 2000. SRTM Slope Map was created from level 1 SRTM NASA data, slope map generated in ArcGIS using a basic nearest neighbour approach. Digital Terrain Model. This dataset was first accessioned in the EDINA ShareGeo Open repository on 2010-06-30 and migrated to Edinburgh DataShare on 2017-02-20.

  15. n

    NC Digital Elevation Model - Aspect (Slope Direction)

    • nconemap.gov
    • arc-gis-hub-home-arcgishub.hub.arcgis.com
    • +2more
    Updated Aug 14, 2023
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    NC OneMap / State of North Carolina (2023). NC Digital Elevation Model - Aspect (Slope Direction) [Dataset]. https://www.nconemap.gov/datasets/256e627cad74407dadfa623e2e4a65b8
    Explore at:
    Dataset updated
    Aug 14, 2023
    Dataset authored and provided by
    NC OneMap / State of North Carolina
    License

    https://www.nconemap.gov/pages/termshttps://www.nconemap.gov/pages/terms

    Area covered
    North Carolina,
    Description

    An aspect map (slope direction) derived from Digital Elevation Models (DEMs) with a 3ft. grid cell size. Compass direction is rendered using the following colors: red (north), magenta (northwest), blue (west), cyan (southwest), light cyan (south), light green (southeast), light orange (east), orange (northeast). Data used to create the DEMs was derived from LiDAR collected by the NC Floodplain Mapping Program and processed by NC Department of Public Safety - Division of Emergency Management.Download county-based DEMs from the NC OneMap Direct Data Downloads. Data should not be downloaded using the map on the dataset's item page.

  16. n

    ADOG North Slope Oil and Gas Activity and Units Map - Datasets - North Slope...

    • catalog.northslopescience.org
    Updated Aug 16, 2016
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    (2016). ADOG North Slope Oil and Gas Activity and Units Map - Datasets - North Slope Science Catalog [Dataset]. https://catalog.northslopescience.org/dataset/2445
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    Dataset updated
    Aug 16, 2016
    Area covered
    North Slope Borough
    Description

    These maps are produced by the Alaska DNR, Division of Oil and Gas (ADOG) and they provide description of participants and activity within oil and gas units. General representation of North Slope Oil and Gas Units is also provided in a separate map. ADOG updates these maps periodically (see links below).

  17. D

    ECA Steep Slope

    • data.seattle.gov
    application/rdfxml +5
    Updated Feb 3, 2025
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    (2025). ECA Steep Slope [Dataset]. https://data.seattle.gov/dataset/ECA-Steep-Slope/jkxf-2hbw
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    xml, application/rdfxml, csv, application/rssxml, tsv, jsonAvailable download formats
    Dataset updated
    Feb 3, 2025
    Description
    Displays areas with 40% steep slope or greater in the City of Seattle.

    A polygon feature class showing areas with an incline of 40% or more (10 feet of vertical rise over a horizontal distance of 25 feet or less) with a height of at least 10 feet.

    This layer was produced using a combination of 2001 LIDAR contours (Puget Sound LIDAR Consortium) and the 1993 topographic contours from aerial photos. The Steep Slope layer was most recently updated under SDCI Director's Rule 12-2019.
    The steep slope area map is called “advisory” because the mapping is used by the Seattle Department of Construction and Inspections for initial information and screening. Whether or not a site is eventually treated as an environmentally critical area is based on the actual topography of the ground surface.
    For more information about the definition of steep slope erosion hazard areas, see Seattle Municipal Code section 25.09.012, Environmentally Critical Areas (ECA) definitions.

    Because of the size of this dataset, we do not recommend trying to download it. Please use as a service. If you need a particular area extracted, please use this form to make a request:

    Updated as needed.
  18. GIS Data from the Alaska North Slope

    • data.ucar.edu
    • arcticdata.io
    • +2more
    archive
    Updated Feb 7, 2024
    + more versions
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    Donald A. (Skip) Walker (2024). GIS Data from the Alaska North Slope [Dataset]. https://data.ucar.edu/en/dataset/gis-data-from-the-alaska-north-slope
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    archiveAvailable download formats
    Dataset updated
    Feb 7, 2024
    Dataset provided by
    University Corporation for Atmospheric Research
    Authors
    Donald A. (Skip) Walker
    Time period covered
    Jan 1, 1980 - May 1, 2008
    Area covered
    Description

    This data set includes ArcInfo-formatted maps of the Kuparuk River Basin Region of the Alaskan North Slope (at 1:250,000 scale) and five subset study areas: the Upper Kuparuk River Basin Subregion (1:25,000), the Imnavait Creek Landscape (1:6,000), the Toolik Lake Landscape (1:5,000), the Imnavait Creek Grid (1:500), and the Toolik Lake Grid (1:500). Land cover (satellite-derived) and elevation data (United States Geological Survey digital elevation model (USGS DEM-derived)) are provided for the Kuparuk River Basin Region. For the five subset areas, an integrated terrain unit mapping (ITUM) approach simultaneously mapped vegetation and other terrain features as interpreted in the field from a common aerial-photograph base. The result is a single ITUM map for each area, including vegetation, geomorphology, glacial geology, and many other features. Various supplemental maps (e.g., hydrologic features and roads) for each of the areas are available for use as overlays. Data is only available as a single tar.gz file containing all of the files.

  19. f

    Slope of Latin America and Caribbean.

    • data.apps.fao.org
    Updated Jun 28, 2024
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    (2024). Slope of Latin America and Caribbean. [Dataset]. https://data.apps.fao.org/map/catalog/srv/resources/datasets/beb38370-88fd-11da-a88f-000d939bc5d8
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    Dataset updated
    Jun 28, 2024
    Area covered
    Latin America
    Description

    Derived from the Global Agro-Ecological Zones Study, Food and Agriculture Organization of the United Nations (FAO), Land and Water Development Division (AGL) with the collaboration of the International Institute for Applied Systems Analysis (IIASA), 2000. Two sources of geo-referenced terrain slopes were available for use in the Global AEZ assessment: (i) terrain slopes indicated in the mapping unit expansion tables of the respective soil maps, and (ii) terrain slopes derived from GTOPO30 data (EROS Data Center, 1998). The latter terrain-slope database was established at IIASA using a rule-based algorithm to calculate slope distributions in terms of seven slope classes per 5 minute grid-cell of the DSMW soil data based on neighborhood relationships among grid-cells in the 30 arc-second GTOPO30 database. Slopes derived from the 30 arc-second DEM were allocated to soil units occurring within individual soil associations. This involved five steps: (i) Determination of slope classes for each 30 arc-second grid-cell of GTOPO30. Results are grouped in the following seven classes: 0-2%, 2-5%, 5-8%, 8-16%, 16-30%, 30-45% and > 45%; (ii) Aggregation of the results respectively to 5 minute latitude/longitude DSMW grid-cells, and to individual soil association map units resulting in a slope class distribution for each grid-cell and map unit; (iii) Defining priority classes of soil unit/slope relationships; (iv) Establishing for each soil association consistent rankings of slopes/soil units; (v) Allocation of individual soil units within a particular soil association map unit to 5 min grid-cells of the DSMW, according to calculated slope distributions.

  20. G

    Slope class (BDTQ)

    • open.canada.ca
    • catalogue.arctic-sdi.org
    • +2more
    csv, fgdb/gdb, html +4
    Updated May 1, 2025
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    Government and Municipalities of Québec (2025). Slope class (BDTQ) [Dataset]. https://open.canada.ca/data/en/dataset/2df11367-cc4a-402b-bf40-baa0b677d1c1
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    sqlite, html, pdf, csv, shp, fgdb/gdb, xlsAvailable download formats
    Dataset updated
    May 1, 2025
    Dataset provided by
    Government and Municipalities of Québec
    License

    Open Government Licence - Canada 2.0https://open.canada.ca/en/open-government-licence-canada
    License information was derived automatically

    Description

    The link: Access the data directory is available in the section*Dataset Description Sheets; Additional Information*. Slope classes express the slope of the land in a relatively homogeneous area with a minimum area of 0.5 ha. They are generated from a numerical model that groups terrain slopes into six classes: + Zero of 0-3% + Low of 4-8% + Mild of 9-15% + Moderate of 16-30% + Strong of 31-40% + Strong of 31-40% + Steep of 41% or more These data cover almost the entire territory of Quebec south of the 52nd parallel. This map is presented in two groups: grouping at the provincial level and grouping at the scale of 1/250,000. Each grouping represents an assembly of sheets produced on a scale of 1/20,000. The datasets were originally produced in 2005 and then updated in 2006. In 2010, they were enhanced with slope information for the northernmost part. No updates have been made since then. _For more information, please refer to the document: Products presenting the concept of slope _ Note: The numerical terrain model is prepared from the level curves and altitude points that come from the topographic map at the scale of 1/20,000 and 1/50,000 from the Quebec Topographic Database (BDTQ). This geographic database was produced in 2010 and has never been updated. Former name: Numerical slope classes, Slope class**This third party metadata element was translated using an automated translation tool (Amazon Translate).**

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Esri (2013). Terrain - Slope Map [Dataset]. https://hub.arcgis.com/datasets/a1ba14d09df14f42ad6ca3c4bcebf3b4
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Terrain - Slope Map

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189 scholarly articles cite this dataset (View in Google Scholar)
Dataset updated
Dec 31, 2013
Dataset authored and provided by
Esrihttp://esri.com/
Area covered
Description

This map provides a colorized representation of slope, generated dynamically using server-side slope function on the Terrain layer. The degree of slope steepness is depicted by light to dark colors - flat surfaces as gray, shallow slopes as light yellow, moderate slopes as light orange and steep slopes as red-brown. A scaling is applied to slope values to generate appropriate visualization at each map scale. This service should only be used for visualization, such as a base layer in applications or maps. Note: If access to non-scaled slope values is required, use the Slope Degrees or Slope Percent functions, which return values from 0 to 90 degrees, or 0 to 1000%, respectively.Units: DegreesUpdate Frequency: QuarterlyCoverage: World/GlobalData Sources: This layer is compiled from a variety of best available sources from several data providers. To see the coverage and extents of various datasets comprising this service in an interactive map, see World Elevation Coverage Map.What can you do with this layer?Use for Visualization: Yes. This colorized slope is appropriate for visualizing the steepness of the terrain at all map scales. This layer can be added to applications or maps to enhance contextual understanding. Use for Analysis: No. 8 bit color values returned by this service represent scaled slope values. For analysis with non-scaled values, use the Slope Degrees or Slope Percent functions.For more details such as Data Sources, Mosaic method used in this layer, please see the Terrain layer. This layer allows query, identify, and export image requests. The layer is restricted to a 5,000 x 5,000 pixel limit in a single export image request.

This layer is part of a larger collection of elevation layers that you can use to perform a variety of mapping analysis tasks.

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