swa_dball_2m eng; USA utf8 dataset Pacific Islands Benthic Habitat Mapping Center (PIBHMC), Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Science Center (PIFSC), National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA) 808 725-5360 NOAA IRC NMFS/PIFSC/CRED 1845 WASP Blvd., Building 176 Honolulu HI 96818 USA nmfs.pic.credinfo@noaa.gov pointOfContact 2024-12-15 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) 3 row 1298 column 1594 vertical 1 point World Geodetic System 1984 WGS 84 2007-08-27 revision https://epsg.org/crs_4326/WGS-84.html WGS 84 GML of World Geodetic System 1984 coordinate reference system. information resourceProvider European Petroleum Survey Group https://epsg.org/home.html European Petroleum Survey Group Geodetic Parameter Registry Registry that accesses the EPSG Geodetic Parameter Dataset, which is a structured dataset of Coordinate Reference Systems and Coordinate Transformations. search publisher urn:ogc:def:crs:EPSG::4326 Mosaic of 2m bathymetry derived from multispectral IKONOS World View-2 satellite imagery of Swains Island, Territory of American Samoa, South Pacific, USA 2014-02-01 publication Pacific Islands Benthic Habitat Mapping Center (PIBHMC), Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Science Center (PIFSC), National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA) originator mapDigital Bathymetric data derived from a multipectral World View-2 satellite image mosaiced to provide near complete coverage of nearshore terrain around the islands. Bathymetry values shallower than ~20 m were derived by gauging the reletive attenuation of coastal, blue, green and yellow spectral radiance as a function of depth. A multiple linear regression analysis of coastal, blue, green and yellow band spectral values against depth determined the variables of y-intercept, coastal,blue, green and yellow slope values. Variables then used in multivariate slope intercept formula to derive depth. Variables were adjusted to improve the statistical accuracy and spatial coverage of the final derived bathymetry product. Digital image processing to derive depths conducted with the ENVI 4.8 software program while data editing and integration was performed using ArcGIS 10 This data set is for the shelf environment of Swains Island, American Samoa, South Pacific. The data were derived in support of NOAA Coral Reef Conservation Program goals. Goal 1 is to map all U.S. Coral Reef Ecosystems. This data set specifically addresses Objective 1 and 4: to develop high-resolution benthic maps and to characterize priority deep water reefs and associated habitats. This derived bathymetry provides a GIS layer with expanded spatial coverage that may be used for benthic and essential fish habitat characterization, and for the study of geologic features. By combining the dataset with other bathymetry, backscatter, derivatives, and in situ data, they collectively compose benthic habitat maps designed to be used to understand and predict shallow depth (0m to 150m) benthic habitats for organisms that inhabit coral reef ecosystems. Benthic Habitat Mapping Group, Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Science Center (PIFSC), NOAA completed asNeeded https://www.soest.hawaii.edu/pibhmc/amsamoa_images/SWA_DBALL_2m_445.jpg Gridded Bathymetry jpg CoRIS_Metadata theme NCEI Geoportal Filter Benthic Habitat Mapping and Characterization in the Pacific Islands Region 467 project CRCP Project EARTH SCIENCE > Oceans > Bathymetry/Seafloor Topography > Bathymetry EARTH SCIENCE > Oceans > Bathymetry/Seafloor Topography > Water Depth EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > Remote Sensing > Satellite (digital scans) > WorldView-2 theme CoRIS Theme Thesaurus Slope Bathymetry Multibeam sonar theme None Geographic Information > Bathymetry theme CoRIS Discovery Thesaurus Swains Island American Samoa United States of America place None OCEAN BASIN > Pacific Ocean > American Samoa > Swains Atoll (11S171W0001) COUNTRY/TERRITORY > United States of America > American Samoa > American Samoa > Swains Atoll (11S171W0001) place CoRIS Place Thesaurus American Samoa place CoRIS Region These data are not to be used for navigational purposes. NOAA makes no warranty regarding these data, expressed or implied, nor does the fact of distribution constitute such a warranty. NOAA cannot assume liability for any damages caused by any errors or omissions in these data, nor as a result of the failure of these data to function on a particular system. otherRestrictions Use Constraints: These data are not to be used for navigation purposes. Please acknowledge NOAA Pacific Islands Fisheries Science Center, the Joint Institute for Marine and Atmospheric Research (JIMAR) University of Hawaii as the sources of this information. otherRestrictions Access Constraints: None unclassified Not applicable Not applicable grid eng; USA elevation Native Dataset Environment: ArcGIS ASCII file or ArcGIS Grid file, bathymetry derived from 2x2m multispectral satellite imagery (World View-2) using ENVI 4.8, multibeam and derived bathymetry were integrated using ArcGIS 10. -171.93808 -171.218733 -11.188662 -10.934991 2010-08-26 2010-08-26 Original Wordl View-2 imagery was purchased to support the Pacific Islands Geographic Information System (GIS) project and National Ocean Service's (NOS) coral mapping activities. Orthographically corrected World View-2 Imagery was provided by USDA NRCS. The metadata for this World View-2 imagery is documented in the original product metadata, 10AUG26215148-M3DS-052573207020_01_P001.#check#(https://www.soest.hawaii.edu/pibhmc/cms) Arc Grid Pacific Islands Benthic Habitat Mapping Center (PIBHMC), Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Science Center (PIFSC), National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA) 808 725-5360 NOAA IRC NMFS/PIFSC/CRED 1845 WASP Blvd., Building 176 Honolulu HI 96818 USA nmfs.pic.credinfo@noaa.gov distributor None ftp://ftp.soest.hawaii.edu/pibhmc/website/data/amsamoa/bathymetry/SWA_DBALL_2m.zip download dataset Horizontal Positional Accuracy Report Horizontal positioning system: GPS C/A Horizontal position accuracy: 25 meters Vertical Positional Accuracy Report Vertical accuracy of derived bathymetry product: 2 meter mean Complete These data are believed to be logically consistent though no tests were performed Multiple tools in ENVI 4.8 were used to complete the following processing steps: Data conversion from digital number to radiance, correction for atmosphere and water surface reflection, masking of non-applicable values, and bathymetric derivation using variables from multiple linear regression analysis. Multiple tools in ArcGIS 9.3 were used for dataset integration and to extract values for the multiple linear regression analysis and subsequent error analyses. The Microsoft program Excel was used for the multiple linear regression analysis to provide original variables for depth derivation. The multivariate slope intercept formula used to derive depth was Depth=Yint+(Mcoastal)(Xcoastal)+(Mblue)(Xblue)+ (Mgreen)(Xgreen)+(Myellow)(XYellow).Two products were derived, both from the original image 10AUG26215148-M3DS-052573207020_01_P001, which was devided into Swains shallow and deep.The MLR variables for "Swains shallow" was Yint=-1.200274621, Mcoastal=-0.077167143, Mblue=-0.069652146, Mgreen=0.200453994, Myellow=-0.086658075, for "Swains deep" were Yint=5.36438271, coastal=-0.766939814, Mblue=0.024300732, Mgreen=1.546256648, Myellow=-0.072663819 and The derived bathymetry were in turn mosaiced giving the data from Swains shallow priority in depth >/=-6 and Swains deep in depth <-6 due to its statistaclly higher accuracy. A detailed description of all processing steps and an error analysis of each derived bathymetry grid used is available upon request. 2014-01-09T00:00:00 otherRestrictions Metadata Access Constraints: None otherRestrictions Metadata Use Constraints: None annually This metadata was automatically generated from the FGDC Content Standards for Digital Geospatial Metadata standard (version FGDC-STD-001-1998) using the 2016-01-11 version of the FGDC RSE to ISO 19115-2 transform. Translated from FGDC 2025-03-24T19:17:11.999Z Pacific Islands Benthic Habitat Mapping Center (PIBHMC), Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Science Center (PIFSC), National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA) 808 725-5360 NOAA IRC NMFS/PIFSC/CRED 1845 WASP Blvd., Building 176 Honolulu HI 96818 USA nmfs.pic.credinfo@noaa.gov pointOfContact