gov.noaa.nmfs.inport:39320 eng UTF8 dataset National Centers for Coastal Ocean Science resourceProvider NCCOS Scientific Data Coordinator NCCOS.data@noaa.gov pointOfContact 2025-05-15T19:16:13 ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for imagery and gridded data ISO 19115-2:2009(E) complex 1068 Benthic Habitats of Guam Derived From IKONOS Imagery, 2001-2003 guam_benthic_haitats 2004 publication NOAA/NMFS/EDM 39320 https://www.fisheries.noaa.gov/inport/item/39320 WWW:LINK-1.0-http--link Full Metadata Record View the complete metadata record on InPort for more information about this dataset. information Battista, Tim tim.battista@noaa.gov principalInvestigator https://coastalscience.noaa.gov/datasets/ccma/biogeo/us_pac_terr/habitats/guam_habitat.zip WWW:LINK-1.0-http--link Citation URL Online Resource download https://ccma.nos.noaa.gov/ecosystems/coralreef/us_pac_terr/data/ WWW:LINK-1.0-http--link Citation URL Online Resource download https://ccma.nos.noaa.gov/ecosystems/coralreef/us_pac_terr/data/habitats.aspx WWW:LINK-1.0-http--link Citation URL Online Resource download 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 map the coral reef habitats of American Samoa, Guam and the Commonwealth of the Northern Mariana Islands by visual interpretation and manual delineation of IKONOS satellite imagery. A two tiered habitat classification system was tested and implemented in this work. It integrates geomorphologic reef structure and biological cover into a single scheme and subsets each into detail. It also includes thirteen zones. Benthic features were mapped that covered an area of 104 square kilometers of which 32.9 were unconsolidated sediment and 71.6 were coral reef and hard bottom. Of the coral reef and hard bottom class, 35.6% is colonized by greater than 10% coral cover. The National Ocean Service is conducting a map production effort to digitally map biotic resources and coordinate a long-term monitoring program that can detect and predict change in U.S. coral reefs, and their associated habitats and biological communities. completed NCCOS Scientific Data Coordinator NCCOS.data@noaa.gov pointOfContact NCCOS Scientific Data Coordinator NCCOS.data@noaa.gov custodian notPlanned coral reef coralline algae cover environmental monitoring habitat reef structure submerged aquatic vegetation unconsolidated sediments zone theme Guam Mariana Islands United States place DOC/NOAA/NOS/NCCOS > National Centers for Coastal Ocean Science, 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 Pac_Terr project InPort otherRestrictions Cite As: National Centers for Coastal Ocean Science, [Date of Access]: Benthic Habitats of Guam Derived From IKONOS Imagery, 2001-2003 [Data Date Range], https://www.fisheries.noaa.gov/inport/item/39320. 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: Not for navigation otherRestrictions Distribution Liability: 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. unclassified NOAA Data Management Plan (DMP) NOAA/NMFS/EDM 39320 https://www.fisheries.noaa.gov/inportserve/waf/noaa/nos/nccos/dmp/pdf/39320.pdf WWW:LINK-1.0-http--link NOAA Data Management Plan (DMP) NOAA Data Management Plan for this record on InPort. information crossReference vector eng; US biota environment oceans Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 1; ESRI ArcCatalog 9.0.0.535 144.599648 144.9727 13.22229 13.669406 | Currentness: Ground Condition 2003 2004 false eng false guam_draft_map 2017-04-17 publication Shapefile NCCOS Scientific Data Coordinator NCCOS.data@noaa.gov distributor https://coastalscience.noaa.gov/datasets/ccma/biogeo/us_pac_terr/habitats/guam_habitat.zip WWW:LINK-1.0-http--link https://coastalscience.noaa.gov/datasets/ccma/biogeo/us_pac_terr/habitats/guam_habitat.zip Downloadable Data download dataset Accuracy A statistically robust field data set was collected to assess the thematic accuracy of the map products. A random stratified sampling method was implemented to select field sites to conduct this test. Each site was navigated to using a Trimble Geo Explorer 3 GPS data logger, and positional data was acquired. A total of 1,113 GPS waypoints were occupied and benthic characterizations conducted for the purpose of accuracy assessment. Areas that were obscured by cloud cover or where other environmental conditions such as glint of turbidity prevented visual interpretation of the benthic habitats were assigned an attribute of "unknown". Field observations that fell in polygons designated "unknown" were not included in the statistical analysis. During this survey, 5 of the 1,113 field observations were excluded for this reason and 1,108 observations were used in the accuracy assessment.A statistical analysis that generated a Tau statistic was preformed. The Tau statistic for the major classes exceeded 0.85 and for detailed classes exceeded 0.75. Overall thematic accuracy was established as 98.7% and 92.6% for the major structure and cover classes and 87.8% and 80.9% for the detailed classes respectively for the entire Mariana Archipelago. Horizontal Positional Accuracy RMS from digitized output was determined using the ESRI RMEer2 extension and shown to be less than 1m when conducted at 1:6000 scale. Completeness Report NOAA supplied georeferenced imagery to Analytical Laboratories of Hawaii through BAE Systems Spectral Solutions. Delineation of all habitat boundaries was conducted with the image scale at 1:6,000. This ensures that the level of detail produced by the photo interpreter is uniform throughout the project. Also, NOAA has shown from similar mapping efforts in the Caribbean and Florida Keys, that little additional information is gained from having the image at a smaller scale and the labor intensity increased significantly. The minimum mapping unit (MMU) for identifying habitats or features was 1 acre. The software utilized in this project was designed to alert the photo interpreter each time a polygon was drawn smaller than the MMU. When this occurred the photo interpreter has the choice whether to include the polygon in the data set. Only in areas where local coral reef managers expressed interest in specific map classes or in Marine Protected Areas were polygons of smaller then the MMU allowed. Conceptual Consistency All mapping was conducted from orthorectified IKONOS satellite imagery provided by NOS prior to map production. IKONOS satellite imagery was corrected for atmospheric and water column effects, color balanced, pan sharpened and deglinted. During the digitizing process, image stretches and manipulating image contrast, brightness and color balance were performed in the ArcView Image Analysis Extension to enhance features in the processed imagery. GIS topologic quality was established by executing ArcView extension routines that check for: overlapping polygons, multipart polygons, sliver polygons and void polygons. Additionally checks for adjacent polygons with the same habitat attributes were completed. All errors were identified and corrected. This file is believed to be logically consistent. Benthic habitat maps were digitized by delineating habitat boundaries from georeferenced orthorectified IKONOS satellite imagery loaded into ArcView 3.3 GIS software with the Image Analysis and NOAA Coral Reef Habitat Digitizing extensions both activated. Digitizing was conducted using heads-up on computer screen methods with the minimum mapping unit (MMU) set to 1 acre and the image scale at 1:6,000. All IKONOS imagery was processed by NOS prior to map production. The imagery was corrected for atmospheric and water column effects, pan sharpened and deglinted. During the digitizing process, images were stretched and contrast, brightness and color balance were modified using the Arc View Image Analysis Extension to enhance features in the processed imagery. A first draft map was completed and features in the imagery where uncertainties existed, due to confusing or difficult to interpret signatures, were identified for future ground validation effort. An ArcView GIS point theme was generated with points positioned on the features of uncertain habitat type or along transects though gradients between habitat types. The GIS points were converted to GPS waypoints using Trimble Pathfinder Software and were navigated to in the field using a Trimble GeoExplorer 3 GPS data logger.A benthic habitat characterization was conducted at each site by snorkeling, free diving, or where water depth and clarity permitted, by observation from the surface . GPS data were collected at each location and site ID, depth, habitat type, zone and the method used to make the assessment were recorded. A second draft of the map was generated incorporating these ground validation data. 2003-01-01T00:00:00 Source Contribution: This document identified the zone, structure and biological cover types attributed in the data set | Source Geospatial Form: document | Type of Source Media: Report Classification Scheme for Benthic Habitats of the Pacific 2003-01-01 publication M.S. Coyne https://ccma.nos.noaa.gov/ecosystems/coralreef/us_pac_terr/html/methods.aspx WWW:LINK-1.0-http--link Source Citation URL Source Citation URL information 2003 Source Contribution: This ArcView extension was used to digitize and attribute benthic zones, structure and biological cover of this map. | Type of Source Media: computer program Coral Reef Digitizing Extension 2003-01-01 publication Ken Buja https://coastalscience.noaa.gov/projects/detail?key=203 WWW:LINK-1.0-http--link Source Citation URL Source Citation URL information 2003 Source Contribution: Used to identify and digitize benthic habitats for Guam. | Source Geospatial Form: remote-sensing image | Type of Source Media: CD-ROM IKONOS Satellite Imagery 2003-01-01 publication Space Imaging Inc. http://www.spaceimaging.com WWW:LINK-1.0-http--link Source Citation URL Source Citation URL information 2001 2003