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Mosaic of 10 m gridded multibeam bathymetry and bathymetry derived from multispectral IKONOS satellite imagery of Asuncion Island, Commonwealth of the Northern Marianas Islands, USA

Metadata Updated: May 10, 2024

Gridded multibeam bathymetry is integrated with bathymetry derived from multpectral 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 relative attenuation of blue and green spectral radiance as a function of depth. A multiple linear regression analysis of linearized blue and green band 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 and spatial coverage of the final derived bathymetry product. Digital image processing to derive depths conducted with the ENVI 4.5 software program while data editing and integration was performed using ArcGIS 9.3. This dataset is for the shelf environment of Asuncion Island, Commonwealth of the Northern Marianas Islands, USA

Access & Use Information

License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

Downloads & Resources

Dates

Metadata Date May 29, 2024
Metadata Created Date May 10, 2024
Metadata Updated Date May 10, 2024
Reference Date(s) January 23, 2009 (publication)
Frequency Of Update asNeeded

Metadata Source

Harvested from CoRIS FGDC Metadata

Graphic Preview

Gridded Bathymetry

Additional Metadata

Resource Type Dataset
Metadata Date May 29, 2024
Metadata Created Date May 10, 2024
Metadata Updated Date May 10, 2024
Reference Date(s) January 23, 2009 (publication)
Responsible Party NOAA PIFSC CRED PIBHMC and DJLab OSU (Point of Contact)
Contact Email
Guid gov.noaa.crcp:asu_10m_dbmb_metadata
Access Constraints 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., Access Constraints: None
Bbox East Long 145.437089
Bbox North Lat 19.727122
Bbox South Lat 19.646644
Bbox West Long 145.361576
Coupled Resource
Frequency Of Update asNeeded
Graphic Preview Description Gridded Bathymetry
Graphic Preview File http://www.soest.hawaii.edu/pibhmc/CNMI_images/asu_bathymetry_mb&IKONOS_10m_445.jpg
Graphic Preview Type jpeg
Harvest Object Id da95c825-28d0-4e71-af8a-38f65c18ceca
Harvest Source Id d96f14c5-3e35-4b0a-a3b8-9392afeb50fa
Harvest Source Title CoRIS FGDC Metadata
Licence 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.
Lineage
Metadata Language eng; USA
Metadata Type geospatial
Old Spatial {"type": "Polygon", "coordinates": [[[145.361576, 19.646644], [145.437089, 19.646644], [145.437089, 19.727122], [145.361576, 19.727122], [145.361576, 19.646644]]]}
Progress completed
Spatial Data Service Type
Spatial Reference System urn:ogc:def:crs:EPSG::4326
Spatial Harvester True
Temporal Extent Begin 2003-04-03
Temporal Extent End 2007-06-08

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