Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), National Centers for Coastal Ocean Sciences (NCCOS), Center for Coastal Monitoring and Assessment (CCMA) Analytical Laboratories of Hawaii 2012 version 2.1 vector digital data Silver Spring, Maryland NOAA's Ocean Service, National Centers for Coastal Ocean Science (NCCOS) Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), National Centers for Coastal Ocean Science (NCCOS), Center for Coastal Monitoring and Assessment (CCMA), Biogeography Program 2012 version 2.1 map Silver Spring, MD NOAA's Ocean Service, National Centers for Coastal Ocean Science (NCCOS) This project is a cooperative effort between the National Ocean Service, National Centers for Coastal Ocean Science, Center for Coastal Monitoring and Assessment, Biogeography Branch, the Pacific Islands Benthic Mapping Center, the National Marine Fisheries Service, Pacific Islands Fishery Science Center, Coral Reef Ecosystem Division, University of Hawaii, BAE Spectral Solutions, and Analytical Laboratories of Hawaii, LLC. The goal of the work was to map the coral reef habitats from shoreline to shelf edge of Tutuila, American Samoa by visual interpretation and manual delineation of sonar and IKONOS satellite imagery. A three part habitat classification system was used. Benthic features were mapped as polygons and labeled with geomorphologic structure, reef zone, and percent hard bottom attributes. The National Ocean Service is digitally mapping biotic resources to support long-term monitoring programs and detect and predict change in U.S. coral reefs, and their associated habitats and biological communities. 2002 2010 ground condition Complete None planned -170.92905 -170.48096 -14.19588 -14.38429 None coral reef habitat reef submerged aquatic vegetation unconsolidated sediments zone structure NOS Topic Keyword Remotely Sensed Imagery/Photos CoRIS Discovery Thesaurus Geographic Information > Habitats CoRIS Theme Thesaurus EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs > Coral Reef Ecology > Habitats EARTH SCIENCE > Biosphere > Aquatic Habitat > Benthic Habitat EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > Mapping > Habitat Mapping ISO 19115 Topic Category imageryBaseMapsEarthCover 010 None United States American Samoa Tutuila CoRIS Place Thesaurus OCEAN BASIN > Pacific Ocean > American Samoa > Tutuila Island (14S170W0016) COUNTRY/TERRITORY > United States of America > American Samoa > American Samoa > Tutuila Island (14S170W0016) CoRIS Region AmSam None Not for navigation National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), National Centers for Coastal Ocean Science (NCCOS), Center for Coastal Monitoring and Assessment (CCMA), Biogeography Program Biogeography Branch, Marine Biologist mailing and physical address

1305 East West Highway

Silver Spring MD 20910 301-713-3028 301-713-4384 matt.kendall@noaa.gov 0800 - 1700, Monday to Friday, EST Matt Kendall, NOAA and Miles Anderson, Analytical Laboratories of Hawaii Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 1; ESRI ArcCatalog 9.0.0.535 To assess the thematic accuracy of the sonar portion of the maps, an independent field data set originally collected for a fishery assessment, was made available by scientists from the Department of Marine and Wildlife Resources in American Samoa (R. Tulafono, D. Ochavillo, M. Sabater, E. Simonsen, E. Schuster, T. Letalie). Each site consisted of GPS coordinates and several minutes of video data of the seafloor. Useable data were acquired for 77 points and compared to the attributes of the map polygons at each site to check thematic accuracy. A statistical analysis that generated a Tau statistic was preformed. The Tau statistic for the major classes exceeded 0.94 and for detailed classes exceeded 0.93. Overall thematic accuracy was established as 97.4% and 93.5% for the major and detailed structure classes respectively. A separate accuracy assessment was conducted for the shallow water-IKONOS based portion of the map that yielded similar results. All mapping was conducted from sonar and orthorectified IKONOS satellite imagery. 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. Sonar imagery and derived datasets were downloaded from http://www.soest.hawaii.edu/pibhmc/. Sonar based maps were edge matched to the IKONOS based maps and 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. Delineation of all habitat boundaries was conducted with the image scale at 1:6,000 for IKONOS and 1:10,000 for sonar. The minimum mapping unit (MMU) for identifying habitats or features was 1 acre. Horizontal accuracy of the benthic maps is inherited from the source imagery. For example, RMS from digitized output based on IKONOS was determined using the ESRI RMEer2 extension and shown to be <1m when conducted at 1:6000 scale. M.S. Coyne 2003 document Silver Spring, MD NOAA's Ocean Service, National Centers for Coastal Ocean Science (NCCOS) http://ccma.nos.noaa.gov/ecosystems/coralreef/us_pac_terr/html/manual.pdf Report 2003 publication date Classification Scheme for Benthic Habitats of the Pacific This document identified the zone, structure and biological cover types attributed in the data set Ken Buja 2003 Silver Spring, MD NOAA's Ocean Service (NOS), National Centers for Coastal Ocean Science (NCCOS) http://ccma.nos.noaa.gov/products/biogeography/digitizer/ computer program 2003 publication date Habitat Digitizer This ArcView extension was used to digitize and attribute benthic zones, structure and percent hard bottom of this map. Space Imaging Inc. 2003 remote-sensing image Thornton, CO Space Imaging Inc. This imagery was obtained at a 4 m pixel resolution, corrected for water column and atmospheric effects, deglinted and Pan sharpened. CD-ROM 2001 2003 ground condition IKONOS imagery Used to identify and digitize benthic habitats for American Samoa. Pacific Islands Benthic Habitat Mapping Center 2006 remote-sensing image Honolulu, HI PIBHMC Sonar bathymetry was obtained at 5 m pixel resolution and backscatter was collected 1 m resolution. http://www.soest.hawaii.edu/pibhmc/ online arcGIS files 2002 2006 ground condition Sonar imagery Used to identify and digitize benthic habitats for American Samoa. Department of Marine and Wildlife Resources, American Samoa 2010 video Pago Pago, AS Department of Marine and Wildlife Resources, American Samoa Video of sea floor features collected with GPS coordinate stamp. video files 2009 2010 ground condition Drop camera video Used to determine thematic accuracy of benthic habitat maps. Benthic habitat maps were digitized by delineating habitat boundaries from georeferenced sonar and orthorectified IKONOS satellite imagery loaded into ArcGIS software with the NOAA Habitat Digitizing extension activated. Digitizing was conducted using on computer screen methods with the minimum mapping unit (MMU) set to 1 acre and the image scale at 1:6,000 for IKONOS and 1:10,000 for sonar. 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 ground validation. An ArcGIS 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 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 drop camera, 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. The sonar and satellite based maps were edge matched primarily by clipping out any areas of overlap and retaining the sonar derived map. Polygon edges were merged where attributes matched and seams corrected for any inconsistencies. 2011 Matt Kendall National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), National Centers for Coastal Ocean Science (NCCOS), Center for Coastal Monitoring and Assessment (CCMA), Biogeography Program mailing address

1305 East-West Highway

Silver Spring MD 20910 301-713-3028 301-713-4388 Metadata imported. 2011 Vector G-Polygon 2089 Universal Transverse Mercator -2 0.999600 -171.000000 0.000000 500000.000000 10000000.000000 Coordinate Pair 0.001024 0.001024 meters D_North_American_1983_HARN Geodetic Reference System 80 6378137.000000 298.257222 tutuila_shore_to_shelfedge_final Shapefile attribute table None FID Internal feature number. ESRI ESRI Shape Feature geometry. ESRI Coordinates defining the features. OBJECT_ID Incremental value generated for QA/QC adjacency test ArcView script Incremental numeric field ZONE_ Geomorphologic zone Habitat classification scheme Assigned during digitizing character field M_STRUCT Major reef structure Habitat digitizing extension Assigned during digitizing character field D_STRUCT Detailed structure Habitat digitizing extension Assigned during digitizing character field P_HARD Percent hard bottom in the polygon Habitat classification scheme Assigned during digitizing character field Shape_area Area of polygon ArcGIS script 10.03 200389160.20 NA Shape_leng Length of polygon ArcGIS script 13.84 925134.59 NA National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), National Centers for Coastal Ocean Science (NCCOS), Center for Coastal Monitoring and Assessment (CCMA), Biogeography Program Biogeography Branch, Marine Biologist mailing and physical address

1305 East West Highway

Silver Spring MD 20910 301-713-3028 301-713-4384 matt.kendall@noaa.gov 0800 - 1700, Monday to Friday, EST Downloadable 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. Shapefile http://data.nodc.noaa.gov/coris/data/NOAA/nos/Tutuila_shore_to_shelf_edge/Tutuila_shore_to_shelf_edge.zip None Contact NOAA for distribution options (see Distributor). All maps of American Samoa prepared during this tenure are incorporated into this metadata summary. 20121220 20120518 National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), National Centers for Coastal Ocean Science (NCCOS), Center for Coastal Monitoring and Assessment (CCMA), Biogeography Program mailing and physical address

1305 East West Highway

Silver Spring MD 20910 301-713-3028 301-713-4384 matt.kendall@noaa.gov 0800 - 1700, Monday to Friday, EST FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998 Local Time http://www.esri.com/metadata/esriprof80.html ESRI Metadata Profile 20120518065526 None 20020101 20101231 http://www.coris.noaa.gov/metadata/records/html/tutuila_shore_to_shelf_edge_shp.html 6481