Metadata Identifier: gov.noaa.ngdc.mgg.geophysics:G01065_v2

Aggregation Info | Bands | Citations | Constraints | Coverage Descriptions | Dimensions | Extents | Formats | Geographic Bounding Box
Georectified Information | Georeferenceable Information | Identifiers | Instruments | Mediums | OnlineResources | Operations
Platforms | Process Steps | Range Elements | Reference Systems | Responsible Parties | Series | Sources | Spatial Grids | Temporal Extents

MD_DataIdentification

Count Component Title Abstract
1 Total Sediment Thickness of the World's Oceans & Marginal Seas, Version 2 NGDC's global ocean sediment thickness grid (Divins, 2003) has been updated for the Australian-Antarctic region (60° -155° E, 30° -70° S). New seismic reflection and refraction data have been used to add detail to the conjugate Australian and Antarctic margins and intervening ocean floor where previously regional sediment thickness patterns were poorly known. On the margins, sediment thickness estimates were computed from velocity-depth functions from sonobuoy/refraction velocity solutions ground-truthed against seismic reflection data. For the Southeast Indian Ridge abyssal plain, sediment thickness contours from Géli et al. (2007) were used. The new regional sediment thickness grid was combined with NGDC's original ocean sediment thickness grid (Divins, 2003) to create an updated global grid of ocean sediment thickness. Even using the minimum estimates, sediment accumulations on the extended Australian and Antarctic continental margins are 2 km thicker across large regions and up to 9 km thicker in the Ceduna Basin compared to NGDC's original sediment thickness grid (Divins, 2003), which has been deprecated but is still available.
Top

SV_Identification

none found
Top

CI_Citation

Count Component Title Date Citation Identifier
1 A revised structural framework for frontier basins on the southern and southwestern Australian continental margin
    2003-01-01
1 Geological framework of the continental margin in the region of the Australian Antarctic Territory
    2005-01-01
1 GCMD Data Center Keywords Global Change Master Directory (GCMD) Data Center Keywords
    2020-01-09
1 GCMD Location Keywords Global Change Master Directory (GCMD) Location Keywords
    2020-01-09
1 NASA/GCMD Science Keywords Global Change Master Directory (GCMD) Science Keywords
    2024
1 Global Sediment Thickness Dataset updated for the Australian-Antarctic Southern Ocean
    2013-01-01
1 NASA/GCMD Data Resolution Keywords
    1 Nature of the continent-ocean transition on the non-volcanic rifted margin in the central Great Australian Bight
      2001-01-01
    1 Thermal regime of the Southeast Indian Ridge between 88ºE and 140ºE: Remarks on the subsidence of the ridge flanks
      2007-01-01
    1 Total Sediment Thickness of the World's Oceans & Marginal Seas, Version 2
      2013-05-20
    1 Uncontrolled Keywords
      Top

      CI_Series

      none found
      Top

      CI_ResponsibleParty

      Count Component Individual Organization Position Email Role Linkage
      2 Citation URL https://www.ngdc.noaa.gov/mgg/sedthick/
      1 Bradshaw, B. E., Rollet, N., Totterdell, J., and Borissova., I. originator
      2 User Services (publisher) DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce User Services ngdc.info@noaa.gov distributor
      3 GCMD Landing Page Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) custodian https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords
      1 Géli, L., Cochran, J., Lee, T., Francheteau, J., Labails, C., Fouchet, C., and Christie, D. originator
      2 Joanne Whittaker Institute for Marine and Antarctic Studies, University of Tasmania Marine Geoscientist jo.whittaker@utas.edu.au pointOfContact
      1 Joanne Whittaker Institute for Marine and Antarctic Studies, University of Tasmania Marine Geoscientist jo.whittaker@utas.edu.au originator
      1 Kelly Carignan Kelly Carignan NOAA National Centers for Environmental Information kelly.carignan@noaa.gov pointOfContact
      1 NCEI (publisher) NOAA National Centers for Environmental Information publisher
      1 Anna Milan NOAA National Centers for Environmental Information Metadata Specialist editor
      1 Sayers, J., Symonds, P. A., Direen, N. G., and Bernadel, G. originator
      1 Stagg, H. M. J., Colwell, J. B., Direen, N. G., O'Brien, P. E., Browning, B. J., Bernardel, G., Borissova, I., Carson, L., and Close, D. I. originator
      1 Whittaker, J., Goncharov, A., Williams, S., Müller, R., Leitchenkov, G. originator
      Top

      CI_OnlineResource

      Count Component Linkage Name Description Function
      1 http://dx.doi.org/10.1002/ggge.20181 Geochemistry, Geophysics, Geosystems Journal article describing the Global sediment thickness dataset updated for the Australian-Antarctic Southern Ocean information
      3 https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2024. GCMD Keywords, Version 19. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information
      4 https://www.ncei.noaa.gov/access/metadata/landing-page/bin/iso?id=gov.noaa.nodc:0304906 GMT NetCDF grd file GMT NetCDF grd file download
      1 https://www.ngdc.noaa.gov/mgg/sedthick/ Total Sediment Thickness of the World's Oceans & Marginal Seas, Version 2 web access to Total Sediment Thickness of the World's Oceans & Marginal Seas, Version 2 information
      Top

      MD_Identifier or RS_Identifier

      none found
      Top

      EX_Extent

      Bounding Box Temporal Extent
      Count Component Description West East North South Start End
      1 0.00 360 80.0000 -70.0000 2003-12-31 2013-05-20
      Top

      EX_GeographicBoundingBox

      Count Component West East North South
      1 0.00 360 80.0000 -70.0000
      Top

      EX_TemporalExtent

      Count Component Start End
      1 2003-12-31 2013-05-20
      Top

      MD_Format

      Count Component Name Version specification
      1 ASCII xyz 2 ASCII text version, XYZ file contains the position of the center of each cell
      1 ArcGIS 2 ArcGIS
      1 geotiff 2 geotiff
      1 netCDF 2 binary grid created using GMT (Generic Mapping Tools)
      Top

      MD_Medium

      none found
      Top

      MD_Constraints

      Count Component Use Limitation
      Top

      MD_ReferenceSystem

      none found
      Top

      MD_GridSpatialRepresentation

      Count Component Number of Dimensions Cell Geometry Code
      1 3 area
      Top

      MD_Georeferenceable or MI_Georeferenceable

      none found
      Top

      MD_Georectified or MI_Georectified

      none found
      Top

      MD_Dimension

      Count Component Name Code Size
      1 row 1801
      1 column 4321
      1 vertical 1
      Top

      MD_CoverageDescription or MI_CoverageDescription

      none found
      Top

      MD_Band or MI_Band

      none found
      Top

      MI_RangeElementDescription

      none found
      Top

      MD_AggregateInformation

      Count Component Title Code Association Type Code
      1 Global Sediment Thickness Dataset updated for the Australian-Antarctic Southern Ocean crossReference
      Top

      LE_Source or LI_Source

      Count Component Title Date Description
      1 A revised structural framework for frontier basins on the southern and southwestern Australian continental margin 2003-01-01 A revised structural framework for frontier basins on the southern and southwestern Australian continental margin
      1 Geological framework of the continental margin in the region of the Australian Antarctic Territory 2005-01-01 Geological framework of the continental margin in the region of the Australian Antarctic Territory
      1 Nature of the continent-ocean transition on the non-volcanic rifted margin in the central Great Australian Bight 2001-01-01 Nature of the continent-ocean transition on the non-volcanic rifted margin in the central Great Australian Bight
      1 Thermal regime of the Southeast Indian Ridge between 88ºE and 140ºE: Remarks on the subsidence of the ridge flanks 2007-01-01 Thermal regime of the Southeast Indian Ridge between 88ºE and 140ºE: Remarks on the subsidence of the ridge flanks
      Top

      LE_ProcessStep or LI_ProcessStep

      Count Component DateTime Description
      1 2013-01-01T00:00:00 We compute new, regional 5-minute resolution sediment thickness grids using seismic reflection and refraction derived sediment thicknesses for the southern Australian and conjugate Antarctic Wilkes Land margins, merged with sediment thickness data from Géli et al. (2007) for the intervening abyssal plains. Values from the NGDC global sediment thickness grid (Divins, 2004) were used for areas not covered by the other data sets.
      1 2015-04-22T00:00:00 NOAA created the National Centers for Environmental Information (NCEI) by merging NOAA's National Climatic Data Center (NCDC), National Geophysical Data Center (NGDC), and National Oceanographic Data Center (NODC), including the National Coastal Data Development Center (NCDDC), per the Consolidated and Further Continuing Appropriations Act, 2015, Public Law 113-235. NCEI launched publicly on April 22, 2015.
      Top

      MI_Operation

      none found
      Top

      MI_Platform

      none found
      Top

      MI_Instrument

      none found
      Top