tau_dbmb_mos_metadata eng; USA utf8 dataset Kyle Hogrefe NOAA PIFSC CRED PIBHMC and DJLab OSU 541-740-8444 104 Wilkinson Hall, Oregon State University Corvallis Oregon 97331 USA hogrefek@geo.oregonstate.edu 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 2187 column 4001 vertical 1 area 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 gridded multibeam bathymetry and bathymetry derived from multispectral IKONOS satellite imagery of Tau Island, Territory of American Samoa, USA 2008-10-28 publication Hogrefe Natural Systems Analysis in collaboration with Davey Jones Locker GIS Laboratory, Oregon State Universtiy for Coral Reef Ecosystem Division, NOAA Pacific Islands Fisheries Science Center, Pacific Islands Benthic Habitat Mapping Center originator mapDigital Gridded multibeam bathymetry is integrated with bathymetry derived from multispectral IKONOS satellite data. Gridded (10 m cell size) multibeam bathymetry collected aboard NOAA Ship Hiialaka'i and R/V AHI. Bathymetry values shallower than 15 m were derived by gauging the reletive attenuation of blue and green spectral radiance as a function of depth. A multiple linear regression analysis of linearized blue and green spectral values against depth determined the variables of y-intercept, blue slope and green slope values. Variables then used in multivariate slope intercept formula to derive depth. Variables were adjusted to improve the statistical accuracy of the final derived bathymetry product. Digital image processing to derive depths conducted with the ENVI 4.3 software program while data editing and integration was performed using ArcGIS 9.3. This data set is for the shelf environment of Tau Island, American Samoa. 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 integration of derived bathymetry with multibeam sonar data 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. NOAA PIFSC CRED, the Pacific Islands Benthic Habitat Mapping Center and Davey Jones Locker GIS Laboratory Oregon State University completed asNeeded https://www.soest.hawaii.edu/pibhmc/amsamoa_images/Tau_bathymetry_5m_mb&IKONOS_445.jpg Gridded Bathymetry jpeg CoRIS_Metadata theme NCEI Geoportal Filter Benthic Habitat Mapping and Characterization - American Samoa and the U.S. Pacific Remote Island Area 1084 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) > IKONOS theme CoRIS Theme Thesaurus Geographic Information > Bathymetry theme CoRIS Discovery Thesaurus Slope Bathymetry Multibeam sonar theme None Tau Island American Samoa United States of America place None COUNTRY/TERRITORY > United States of America > American Samoa > American Samoa > Ta'u Island (14S169W0012) OCEAN BASIN > Pacific Ocean > Manu'a Group > Ta'u Island (14S169W0012) place CoRIS Place Thesaurus AmSam 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 and Davey Jones Locker GIS Laboratory Oregon State University 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 4x4m multispectral satellite imagery (IKONOS) using ENVI 4.3, multibeam and derived bathymetry were integrated using ArcGIS 9.3 -169.597758 -169.410175 -14.286236 -14.186811 2002-11-07 2004-02-12 Gridded multibeam data were collected aboard the Hi'ialakai, a 218' United States National Oceanographic and Atmospheric Administration (NOAA) research ship, and aboard the R/V AHI (Acoustic Habitat Investigator), a 25' survey launch owned and operated by the NOAA Pacific Islands Fisheries Science Center in Honolulu, HI. The metadata for the bathymetry is documented in the product metadata, tau_10m.txt. (http://www.soest.hawaii.edu/pibhmc/pibhmc_amsamoa_tau_bathy.htm) Original IKONOS imagery was purchased to support the Pacific Islands Geographic Information System (GIS) project and National Ocean Service's (NOS) coral mapping activities. Orthographically corrected IKONOS Imagery was provided by NOAA's National Centers for Coastal Ocean Science, Center for Coastal Monitoring and Assessment. The metadata for this IKONOS imagery is documented in the product metadata, tau_msi_metadata_2003.txt. (https://www.soest.hawaii.edu/pibhmc/cms) Arc Grid Kyle Hogrefe NOAA PIFSC CRED PIBHMC and DJLab OSU 541-737-2397 104 Wilkinson Hall, Oregon State University Corvallis Oregon 97331 USA hogrefek@geo.oregonstate.edu distributor None http://www.soest.hawaii.edu/pibhmc/pibhmc_amsamoa_tau_bathy.htm download dataset Horizontal Positional Accuracy Report Horizontal positioning system: GPS C/A Horizontal position accuracy: 25 meters Vertical Positional Accuracy Report Range resolution of sonar: varies with depth Raw sounding resolution: varies with depth Vertical accuracy of gridded sonar product: ~ 1% of water depth Vertical accuracy of derived bathymetry product: 5 meter range Complete These data are believed to be logically consistent though no tests were performed Multiple tools in ENVI 4.3 were used to complete the following processing steps: Data conversion from digital number to radiance, correction for atmosphere and water surface reflection, linearization of spectral decay as function of depth, 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 statisitcs program S-Plus 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+(Mblue)(Xblue)+(Mgreen)(Xgreen). Three derived products, two from the same image (Tau02) and one from an additional image (Tau00) were integrated to expand coverage. The original variables for Tau02 were Yint=8.5332, Mblue=-7.9868, and Mgreen= 23.6889. For the first product used in the mosaic (BD12), the slope values were reduced to Mblue=-6.9868 and Mgreen=22.6889 to increase depth estimates in shallow areas. In an attempt to improve accuracy, the spectral data were re-linearized and new multiple linear regression produced the variables Yint=1.8707, Mblue=-4.2392 and Mgreen=12.9777. These variables resulted in the second product (DB14) used in the mosaic. The third product (DB12) was derived from Tau00 to fill a gap in the NW corner of the island not covered by Tau02. The original MLR variables were Yint= 19.6442, Mblue=-7.8246 and Mgreen=27.4854. The slope values were changed to Mblue=-2.8246 and Mgreen=22.4854 to increase depth estimates in shallow areas. While compiling the derived bathymetry mosaic, Tau02-DB12 values were prioritized over Tau02-DB14 values and Tau02 values (DB12/14) were prioritized over Tau00-DB12 values. When the derived bathymetry mosaic was integrated with multibeam bathymetry to create the final procuct, sonar depth values were prioritized over derived depths. A detailed description of all processing steps is available at: http://oregonstate.edu/~hogrefek/Cookbook/Cookbook_042108.pdf 2010-05-01T00:00:00 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 2025-03-24T19:19:08.277Z Last Metadata Review Date: 2010-08-23 Kyle Hogrefe NOAA PIFSC CRED PIBHMC and DJLab OSU 541-740-8444 104 Wilkinson Hall, Oregon State University Corvallis Oregon 97331 USA hogrefek@geo.oregonstate.edu pointOfContact