gov.noaa.nmfs.inport:48795 eng UTF8 dataset National Geodetic Survey resourceProvider NGS Communications and Outreach Branch (301) 713-3242 (301) 713-4172 ngs.infocenter@noaa.gov pointOfContact 2026-03-04T19:17:17 ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for imagery and gridded data ISO 19115-2:2009(E) 3 row 5008 column 5008 vertical 1 point 0 2008 NOAA NGS Ortho-rectified Colo Mosaic of Potomac River, Maryland 2010-03-30 publication NOAA/NMFS/EDM 48795 https://www.fisheries.noaa.gov/inport/item/48795 WWW:LINK-1.0-http--link Full Metadata Record View the complete metadata record on InPort for more information about this dataset. information https://coast.noaa.gov/ WWW:LINK-1.0-http--link NOAA's Office for Coastal Management (OCM) website Information on the NOAA Office for Coastal Management (OCM) download https://coast.noaa.gov/dataviewer/ WWW:LINK-1.0-http--link NOAA's Office for Coastal Management (OCM) Data Access Viewer (DAV) The Data Access Viewer (DAV) allows a user to search for and download elevation, imagery, and land cover data for the coastal U.S. and its territories. The data, hosted by the NOAA Office for Coastal Management, can be customized and requested for free download through a checkout interface. An email provides a link to the customized data, while the original data set is available through a link within the viewer. download imageDigital The images were acquired at a 1:30,000 scale. Images have been ortho-rectified and mosaiced to produce a seamless data set. This imagery was orthorectified by Aero-metric to conform to the specifications set forth by NOAA for production of orthophotos in Contract Number DG133C06CO0055, Task Order Number T0007. Ortho-rectified mosaic tiles are not intended for mapping, charting or navigation. completed NGS Communications and Outreach Branch (301) 713-3242 (301) 713-4172 ngs.infocenter@noaa.gov pointOfContact NGS Communications and Outreach Branch (301) 713-3242 (301) 713-4172 ngs.infocenter@noaa.gov custodian notPlanned EARTH SCIENCE > SPECTRAL/ENGINEERING > INFRARED WAVELENGTHS > INFRARED IMAGERY EARTH SCIENCE > SPECTRAL/ENGINEERING > VISIBLE WAVELENGTHS > VISIBLE IMAGERY theme Global Change Master Directory (GCMD) Science Keywords 17.0 CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > MARYLAND CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > VIRGINIA place Global Change Master Directory (GCMD) Location Keywords 20.8 CAMERAS instrument Global Change Master Directory (GCMD) Instrument Keywords 17.2 Aircraft > AIRCRAFT theme Global Change Master Directory (GCMD) Platform Keywords Remotely Sensed Imagery/Photography theme NOS Data Explorer Topic Category aerial coastal digital orthophotography mosaic photography shoreline theme DOC/NOAA/NOS/NGS > National Geodetic Survey, National Ocean Service, NOAA, U.S. Department of Commerce dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2017-04-24 publication 8.5 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian NGS Imagery project InPort otherRestrictions Cite As: National Geodetic Survey, [Date of Access]: 2008 NOAA NGS Ortho-rectified Colo Mosaic of Potomac River, Maryland [Data Date Range], https://www.fisheries.noaa.gov/inport/item/48795. NOAA provides no warranty, nor accepts any liability occurring from any incomplete, incorrect, or misleading data, or from any incorrect, incomplete, or misleading use of the data. It is the responsibility of the user to determine whether or not the data is suitable for the intended purpose. otherRestrictions Access Constraints: None otherRestrictions Use Constraints: We request that you credit the National Oceanic and Atmospheric Administration (NOAA) when you use these photos in a report, publication, or presentation. otherRestrictions Distribution Liability: These photographs were obtained for use by NGS during the course of its development of potential final products to fulfill its statutory mission. Although NGS is making these photographs available to others who may find the photographs of value, NGS does not warrant, endorse, or recommend the use of these photographs for any given purpose. NGS is providing these photographs "as is," and NGS disclaims any and all warranties, whether expressed or implied, including (without limitation) any implied warranties of merchantability or fitness for a particular purpose. In no event will NGS be liable to you or any third party for any direct, indirect, incidental, consequential, special, or exemplary damages or lost profits resulting from any use or misuse of these data. unclassified NOAA Data Management Plan (DMP) NOAA/NMFS/EDM 48795 https://www.fisheries.noaa.gov/inportserve/waf/noaa/nos/ngs/dmp/pdf/48795.pdf WWW:LINK-1.0-http--link NOAA Data Management Plan (DMP) NOAA Data Management Plan for this record on InPort. information crossReference grid eng; US imageryBaseMapsEarthCover -77.520675 -76.135996 37.761007 39.013946 | Currentness: Ground Condition 2008-09-03 2009-02-24 Orthoimages are visually inspected for completeness to ensure that no gaps or image misplacements exist within and between adjacent images. These images are derived by mosaicking multiple images to ensure complete coverage. Source imagery is cloud free. Zip Zip GeoTIFF NOAA Office for Coastal Management (843) 740-1202 2234 South Hobson Ave Charleston SC 29405-2413 coastal.info@noaa.gov https://coast.noaa.gov WWW:LINK-1.0-http--link NOAA Office for Coastal Management Website NOAA Office for Coastal Management Home Page information distributor https://coast.noaa.gov/dataviewer/#/imagery/search/where:ID=410 WWW:LINK-1.0-http--link Customized Download Create custom data files by choosing area, map projection, file format, etc. download https://coastalimagery.blob.core.windows.net/digitalcoast/PotomacRiverMD_RGB_2008_410/index.html WWW:LINK-1.0-http--link Bulk Download Simple download of data files. download dataset Horizontal Positional Accuracy The horizontal accuracy of the orthorectified images is mainly determined by the quality of the DEM. The elevation data was from the USGS National Elevation Data dataset. Ground control points were measured in the ortho images and recorded in a spreadsheet which calculated the RMSE and NSSDA reporting accuracy.; Quantitative Value: 0.95 meters, Test that produced the value: These data are accurate to within 0.95 meters with a 95% circular error confidence level. Completeness Measure Cloud Cover: Unknown Completeness Report The source imagery of the ortho-rectified mosaic tiles are acquired at a higher resolution images than the 1.0 meter ortho-rectified mosaic tiles product. The extent of image coverage is limited to the acquired flight lines which were planned to to map the shoreline and therefore may not include all areas within the bounding coordinates. Conceptual Consistency The ortho-rectified tiles are visually inspected for image quality and spot check for gross horizontal positional accuracy blunders with USGS Digital Orthophoto Quadrangles. The digital images were aerotriangulated to support digital ortho image production for the Potomac River Shoreline project area. The project was referenced to the North American Datum of 1983 (NAD83), UTM Coordinate System, Zone 18 horizontally and to the North American Vertical Datum of 1988 (NAVD88) vertically. Units were in meters. The digital images, ABGPS data, and ground check point data were used as inputs to the Zeiss/Intergraph ImageStation Automatic Triangulation (ISAT) softcopy program. ISAT correlated image points and aerotriangulated the block of images to create exposure station exterior orientations. All ground points were manually measured on the imagery. These points were included in the aerotriangulation adjustments for absolute ground location verification. The scale of the aerial photos was 1:30,000. The photography was exposed on 20080903, 20080915, 20081031, 20090221, and 20090224. Rectification was done using the aerotriangulation data, raw DMC images, and 10 meter NED data. These rectified images were used to draw seamlines. The images were then dodged. The dodged rectified images were mosaicked, balanced, and cut into final image sheets. The final sheets were viewed and artifacts were removed as well as other edits performed. 2009-11-01T00:00:00 National Geodetic Survey processor Processing Aero-metric originator