39063 Palau_Shoreline Data Set Published / External 37195 Palau Project Completed 2007 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; and Analytical Laboratories of Hawaii, LLC. The goal of the work was to map the coral reef habitats of Palau by visual interpretation and manual delineation of IKONOS satellite imagery. A two tiered habitat classification system was used in this work. The scheme integrates geomorphologic reef structure and biological cover into a single scheme and subsets each into detail. It also includes thirteen zones. This shapefile was created from the shoreline digitized during this process. 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. 619 Theme ISO 19115 Topic Category environment Theme ISO 19115 Topic Category oceans Theme NOS Data Explorer Topic Category Shoreline Theme coral reef Theme coralline algae Theme cover Theme habitat Theme reef Theme shoreline Theme structure Theme submerged aquatic vegetation Theme unconsolidated sediments Theme zone Spatial Palau 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 Program 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. 41105 Palau_Shoreline Published / External Completed Shapefile attribute table | Description Source: None Converted from FGDC using 'fgdc_to_inport_xml_entity.pl' script. 1 COVER Unknown No No Active Concatenated field of major cover and percent cover used for legend fill | Description Source: ArcView script Character field 2 Shape Unknown No No Active Feature geometry. | Description Source: ESRI Coordinates defining the features. 3 UNIQUEID VARCHAR No No Active 4 digit numerical value representing a unique habitat combination of structure and cover attributes | Description Source: Habitat digitizing extension Habitat description: Habitat classification scheme for the Pacific 4 POLYGONID Unknown No No Active Incremental value generated for QA/QC adjacency test | Description Source: ArcView script Incremental numeric field 5 AREA NUMBER No No Active Area of polygon | Description Source: ArcView script meters 56.842 - 464535353.569 6 PERIMETER NUMBER No No Active Perimeter of polygon | Description Source: ArcView script meters 28.928 - 1055231.686 7 ACRES NUMBER No No Active Area of polygon in acres | Description Source: ArcView script acres 0.014 - 114786.686 8 M_STRUCT Unknown No No Active Major reef structure | Description Source: Habitat digitizing extension Assigned during digitizing character field 9 D_STRUCT Unknown No No Active Detailed structure | Description Source: Habitat digitizing extension Assigned during digitizing character field 10 M_COVER Unknown No No Active Major biological cover | Description Source: Habitat classification scheme Assigned during digitizing 11 FID Unknown No No Active Internal feature number. | Description Source: ESRI Sequential unique whole numbers that are automatically generated. 12 P_COVER Unknown No No Active Percent biological cover of major cover type | Description Source: Habitat classification scheme Assigned during digitizing character field 13 ZONE_ Unknown No No Active Geomorphological zone | Description Source: Habitat Classification scheme Assigned during digitizing character field 14 Area_sqkm Unknown No No Active area of polygon in kilometers | Description Source: None Variable Data Steward 2007 Position NCCOS Scientific Data Coordinator NCCOS.data@noaa.gov Distributor 2007 Position NCCOS Scientific Data Coordinator NCCOS.data@noaa.gov Metadata Contact 2007 Position NCCOS Scientific Data Coordinator NCCOS.data@noaa.gov Point of Contact 2007 Position NCCOS Scientific Data Coordinator NCCOS.data@noaa.gov Principal Investigator 2007 Person Battista, Tim tim.battista@noaa.gov Ground Condition 134.119145 134.721933 8.17238 6.887938 Range 2003 2006 Yes Yes 617 Unclassified Contact NOAA for distribution options (see Distributor).; None Not for navigation https://coastalscience.noaa.gov/datasets/ccma/biogeo/palau/shapes/Palau_Shoreline.zip Downloadable Data ESRI Shapefile Shapefile 1.127 https://ccma.nos.noaa.gov/products/biogeography/palau/ Online Resource https://ccma.nos.noaa.gov/products/biogeography/palau/data/ Online Resource https://coastalscience.noaa.gov/datasets/ccma/biogeo/palau/shapes/Palau_Shoreline.zip Online Resource 2013-07-25 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. 2017-11-01 Replaced entire Lineage section to populate new Source Contribution field. 2018-02-08 Partial upload of Positional Accuracy fields only. Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.2.2.1350 This interim GIS polygon product was generated from eleven regions of Palau which, when combined, constitute the entire Palau Archipelago. A statistical analysis that generates a Tau statistic will be performed. The Tau statistic for the major classes exceeded 0.85 and exceeded 0.75 for detailed classes. Overall thematic accuracy exceeded 85% for major classes and 75% for detailed classes. RMS from digitized output was determined using the ESRI RMEer2 extension and shown to be less than 1m when conducted at 1:6000 scale. NOAA supplied georeferenced imagery to Analytical Laboratories of Hawaii. Delineation of all habitat boundaries was conducted with the image scale at 1:6,000 or less. 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 or for areas of land were polygons of smaller then the MMU allowed. Furthermore, land features were delineated with the MMU restriction removed. All mapping was conducted from orthorectified IKONOS satellite imagery provided by NOAA 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, void polygons and zone attribute check. 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. Classification Scheme for Benthic Habitats of the Pacific M.S. Coyne 2003-01-01 Discrete 2003 http://www.geoeye.com/ This document identified the zone, structure and biological cover types attributed in the data set | Source Geospatial Form: document | Type of Source Media: Report Coral Reef Digitizing Extension Ken Buja 2003-01-01 Discrete 2003 https://ccma.nos.noaa.gov/products/biogeography/digitizer/ This ArcView extension was used to digitize and attribute benthic zones, structure and biological cover of this map. | Type of Source Media: computer program IKONOS Satellite Imagery GeoEye (nee Space Imaging Inc.) 2007-01-01 Range 2003 2006 http://www.geoeye.com Used to identify and digitize benthic habitats for Palau. | Source Geospatial Form: remote-sensing image | Type of Source Media: Digital on external hard drive 1 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 or less. All IKONOS imagery was processed by NOAA 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. The overall map production plan includes a first draft map completed with features in the imagery where uncertainties existed, due to confusing or difficult to interpret signatures, 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 are converted to GPS waypoints using Trimble Pathfinder Software and are navigated to in the field using a Trimble GeoExplorer 3 GPS data logger. A benthic habitat characterization is conducted at each site by use of a tethered video camera 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 are recorded. A second draft of the map is generated incorporating these ground validation data. This is a draft 1 map product. Though the product is topologically clean and meets NOAA GIS standards, attribute accuracy is at an interim level of production and will be considerably modified prior to draft 2 and final publication. 2005-01-01T00:00:00 Classification Scheme for Benthic Habitats of the Pacific 41105 Entity gov.noaa.nmfs.inport:39063 Tyler Christensen 2017-04-05T12:50:33 SysAdmin InPortAdmin 2025-05-15T19:16:14 2018-02-08 National Centers for Coastal Ocean Science NCCOS 1002 Public No No 2018-02-08 1 Year 2019-02-08