58356 Data Set Published / External 49403 Imagery - partner (no harvest) Project Completed 2019-12-10 This data set contains imagery of Kaktovik, Alaska collected in 2019. The purpose of the imagery collect was to provide imagery for a number of Alaskan villages. Theme ISO 19115 Topic Category imageryBaseMapsEarthCover Theme Digital Mapping Camera Theme Digital Ortho rectified Image Theme Kaktovik Theme Ortho Rectification Theme Village Spatial Geographic Names Information System AK Spatial Geographic Names Information System Alaska Office for Coastal Management Charleston SC Data Set Irregular Image (digital) 8-bit pixels, 4 band color(RGBIR) values 0 - 255 None Users must assume responsibility to determine the appropriate use of these data. DATA SHOULD NOT BE USED FOR LEGALLY BINDING APPLICATIONS. Data Steward 2019-12-10 Organization NOAA Office for Coastal Management NOAA/OCM coastal.info@noaa.gov 2234 South Hobson Ave Charleston SC 29405-2413 (843) 740-1202 https://coast.noaa.gov NOAA Office for Coastal Management Home Page Online Resource Distributor 2019-12-10 Organization NOAA Office for Coastal Management NOAA/OCM coastal.info@noaa.gov 2234 South Hobson Ave Charleston SC 29405-2413 (843) 740-1202 https://coast.noaa.gov NOAA Office for Coastal Management Home Page Online Resource Metadata Contact 2019-12-10 Organization NOAA Office for Coastal Management NOAA/OCM coastal.info@noaa.gov 2234 South Hobson Ave Charleston SC 29405-2413 (843) 740-1202 https://coast.noaa.gov NOAA Office for Coastal Management Home Page Online Resource Point of Contact 2019-12-10 Organization NOAA Office for Coastal Management NOAA/OCM coastal.info@noaa.gov 2234 South Hobson Ave Charleston SC 29405-2413 (843) 740-1202 https://coast.noaa.gov NOAA Office for Coastal Management Home Page Online Resource Ground Condition -143.747 -143.521 70.141 70.053 Discrete 2019-08-07 No Projected EPSG:26905 NAD83 / UTM zone 5N North American Datum 1983 GRS 1980 6378137 298.257222101 NAD83 UTM zone 5N Transverse Mercator Latitude of natural origin 0° 0' 0" N Longitude of natural origin 153° 0' 0" W Scale factor at natural origin 0.9996 False easting 500000 metre False northing 0 metre 1 Easting E metre east 2 Northing N metre north Unclassified Data is available for online custom download. There are no limitations for access. https://coast.noaa.gov/dataviewer/#/imagery/search/where:ID=8972 2019-12-10 Organization NOAA Office for Coastal Management https://coastalimagery.blob.core.windows.net/digitalcoast/KaktovikAK_2019_8972/index.html 2019-12-10 Organization NOAA Office for Coastal Management https://coast.noaa.gov/dataviewer Online Resource https://coast.noaa.gov/digitalcoast Online Resource Unknown 44 check point coordinates were measured to compare the aerotriangulated value of the points to their observed position in the mosaic to ensure the data meets horizontal accuracy requirement. The reported horizontal accuracy is 0.039 meter RMSE. None 1 The imagery was acquired by Quantum Spatial Inc. Aerial Photography Capture: A twin-engine aircraft with an on-board Intergraph frame-based digital mapping camera (DMC) was used to capture individual frames of imagery. The position and orientation of the aircraft was recorded at each exposure with the on-board global positioning system (GPS) and inertial measuring unit (IMU). Aerotriangulation Process: The aerotriangulation was performed using the initial GPS/IMU data and was refined using conventional photogrammetric methods. Orthorectification Process: Inpho OrthoMaster software was used to process the imagery to remove systematic and terrain distortions while also georeferencing it. The resulting output files were output with a ground sample distance (GSD) of 0.075 m. Mosaic Process: Inpho OrthoVista software was used to color-balance, automatically generate seamlines, and mosaic the individual orthophotos into user defined mosaic tiles. Tile Review: The mosaicked tiles were each individually panned through and errors/blemishes in seamline generation and color balance are removed by manual methods. This data set was also compared to imagery previously collected, processed, and delivered to the client in order to shift the overall color cast of the current imagery to better resemble the legacy data. Header Creation and Horizontal Checks: The mosaic tiles have their georeferencing information assigned into the headers of the tiles creating full geotiffs. The tiles are then checked for horizontal positioning utilizing ground control. 2019-10-25T00:00:00 gov.noaa.nmfs.inport:58356 Erik Hund 2019-12-19T08:14:44 Kirk Waters 2024-01-11T12:28:50 2024-01-11 OCM Partners OCMP 1002 Public No No 2019-12-20 1 Year 2020-12-20