39247 as_control_gps Data Set Published / External 37194 Pac_Terr Project Completed 2004-06-28 This project is a cooperative effort among the National Ocean Service, National Centers for Coastal Ocean Science, Center for Coastal Monitoring and Assessment; the University of Hawaii; BAE Systems Spectral Solutions; and Analytical Laboratories of Hawaii, LLC. The goal of the work was to incorporate previously developed mapping methods to produce coral reef habitat maps for American Samoa, Guam and the Commonwealth of the Northern Mariana Islands. GPS field observations were used to establish the thematic accuracy of this thematic product. Control GPS data was collected on registered survey markers and RMS circular error was calculated to establish the quality of the GPS collected during field surveys. The National Ocean Service is preparing digital map products of these biotic resources and coordinates a long-term monitoring program that can detect and predict change in U.S. coral reefs, and their associated habitats and biological communities. The goal of the work was to implement previously developed coral reef mapping methods to produce GIS map products of benthic habitats by photo interpreting georeferenced remotely sensed imagery. GPS data was collected to establish thematic accuracy of the benthic habitat products. GPS data was also collected to investigate the benthic habitats during map preparation. 586 Theme ISO 19115 Topic Category environment Theme coral reef Theme environmental monitoring Theme habitat Theme point Theme reef Spatial American Samoa Spatial Manua Spatial Ofu Spatial United States National Centers for Coastal Ocean Science Silver Spring MD Data Set None Planned vector digital data The National Oceanic and Atmospheric Administration (NOAA) National Centers for Coastal Ocean Science (NCCOS) produced this data CD-ROM. NCCOS Biogeography Branch does not guarantee the accuracy of the geographic features or attributes. Please see the metadata records for each data set for complete information on the source, limitations, and proper use. 41230 as_control_gps_final Published / External Completed Shapefile Attribute Table | Description Source: software defined Converted from FGDC using 'fgdc_to_inport_xml_entity.pl' script. 1 FID Unknown No No Active Internal feature number. | Description Source: ESRI Sequential unique whole numbers that are automatically generated. 2 Shape Unknown No No Active Feature geometry. | Description Source: ESRI Coordinates defining the features. 3 Monument Unknown No No Active NGS Survey Monument | Description Source: User Defined Character Field 4 SITE_ID Unknown No No Active Unique site ID | Description Source: User defined Character Field 5 MAX_PDOP Unknown No No Active Measure of positional strength of GPS satellite configuration | Description Source: GPS data logger Numeric Field 6 GPS_DATE Unknown No No Active Date of GPS data collection | Description Source: GPS data logger Character field (YYYYMMDD) 7 GPS_TIME Unknown No No Active Time of GPS data collection | Description Source: GPS data logger Character Field 8 HORZ_PREC Unknown No No Active Precision of horizontal position | Description Source: GPS data logger Numeric field 9 STD_DEV Unknown No No Active Position precision | Description Source: GPS data logger Numeric field 10 Meas_n Unknown No No Active Geographic position | Description Source: GPS data logger Numerical field 11 Meas_e Unknown No No Active Geographic position | Description Source: GPS data logger Numerical field 12 True_n Unknown No No Active Geographic position | Description Source: NGS Survey Position of Monument Numerical field 13 True_e Unknown No No Active Geographic position | Description Source: NGS Survey Position of Monument Numerical field Data Steward 2004-06-28 Position NCCOS Scientific Data Coordinator NCCOS.data@noaa.gov Distributor 2004-06-28 Position NCCOS Scientific Data Coordinator NCCOS.data@noaa.gov Metadata Contact 2004-06-28 Position NCCOS Scientific Data Coordinator NCCOS.data@noaa.gov Point of Contact 2004-06-28 Position NCCOS Scientific Data Coordinator NCCOS.data@noaa.gov Principal Investigator 2004-06-28 Person Battista, Tim tim.battista@noaa.gov Ground Condition -169.681713 -169.667071 -14.1624 -14.184748 Range 2002 2003 Yes Yes 53 Unclassified Contact NOAA for distribution options (see Distributor).; None Not for navigation https://coastalscience.noaa.gov/datasets/ccma/biogeo/us_pac_terr/gps/manua_gps.zip Downloadable Data shapefile Shapefile https://ccma.nos.noaa.gov/ecosystems/coralreef/us_pac_terr/data/ Online Resource https://ccma.nos.noaa.gov/ecosystems/coralreef/us_pac_terr/data/gps.aspx Online Resource 2014-07-02 Date that the source FGDC record was last modified. 2017-04-05 Converted from FGDC Content Standards for Digital Geospatial Metadata (version FGDC-STD-001-1998) using 'fgdc_to_inport_xml.pl' script. Contact Tyler Christensen (NOS) for details. 2017-09-13 Partial upload of Spatial Info section only. 2018-02-08 Partial upload of Positional Accuracy fields only. Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 1; ESRI ArcCatalog 9.0.0.535 All point attribute data was reviewed and is believed to be 100% accurate. RMS error was established as 95% sigma of less than 2 meters. Data are complete. A statistically robust data set was collected on the OFU 1 USGS benchmark on the runway at the Ofu airport. All control GPS data collected during this work was collected according to standard operating procedures. The data was collected using a Trimble GeoExplorer 3 GPS receiver/datalogger and, differentially corrected and seamlessly transferred to the ArcView GIS using Trimble Pathfinder Software. These data are believed to be consistent. 1 GPS data was collected on the OFU 1 USGS benchmark at the Ofu airport in the Manua Group of American Samoa. Twenty positions were collected. Each position was an average of 100 gps readings and was postprocessed for differential correction. RMS error was calculated from the 20 positions to establish the quality of GPS data collected during field surveys. 2003-01-01T00:00:00 41230 Entity gov.noaa.nmfs.inport:39247 Tyler Christensen 2017-04-05T12:51:27 SysAdmin InPortAdmin 2025-05-15T19:16:11 2018-02-08 National Centers for Coastal Ocean Science NCCOS 1002 Public No No 2018-02-08 1 Year 2019-02-08