Short Citation:
Office for Coastal Management, 2021: Ocean Sediment Thickness Contours, https://www.fisheries.noaa.gov/inport/item/48906.

Item Identification

Title: Ocean Sediment Thickness Contours
Short Name: OceanSedimentThicknessContours
Status: Completed
Publication Date: 2013-10
Abstract:

Ocean sediment thickness contours in 200 meter intervals for water depths ranging from 0 - 18,000 meters. These contours were derived from a global sediment thickness grid distributed by the National Geophysical Data Center (NGDC). The NGDC grid was compiled from various existing sediment thickness maps and drilling cores, and has a cell resolution of 5 arc seconds. Sediment thickness data is typically acquired through two methods. Seismic (or sub-bottom) profile technologies rely on powerful pulses of low-frequency sound which penetrate the substrate and return information about substrate thickness, character, and stratification. The data are collected along transect lines and require interpolation to create comprehensive maps. Sediment thickness is also determined by direct measurement through coring, which provides more detailed information but only at discrete sites. Coring data can also be interpolated to form area maps, and to help interpret the seismic data.

Purpose:

To support coastal and ocean planning and other activities pursuant to the Energy Policy Act, Coastal Zone Management Act, Magnuson-Stevens Fishery Conservation and Management Act, National Environmental Policy Act, Rivers and Harbors Act and the Submerged Lands Act.

Notes:

11059

Supplemental Information:

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Geographic:

Latitude_Resolution: 0.000001

Longitude_Resolution: 0.000001

Geographic_Coordinate_Units: Decimal degrees

Geodetic_Model:

Horizontal_Datum_Name: North American Datum of 1983

Ellipsoid_Name: Geodetic Reference System 1980

Semi-major_Axis: 6378137.000000

Denominator_of_Flattening_Ratio: 298.257222

Keywords

Theme Keywords

Thesaurus Keyword
Global Change Master Directory (GCMD) Science Keywords Earth Science > Human Dimensions > Environmental Governance/Management
ISO 19115 Topic Category geoscientificInformation
ISO 19115 Topic Category oceans
None contours
None marine sediments
None marine spatial planning
None ocean energy planning
None seafloor sediment
None sediment thickness

Spatial Keywords

Thesaurus Keyword
Global Change Master Directory (GCMD) Location Keywords Continent > North America > United States Of America
None National
None United States

Physical Location

Organization: Office for Coastal Management
City: Charleston
State/Province: SC

Data Set Information

Data Set Scope Code: Data Set
Maintenance Frequency: As Needed
Distribution Liability:

NOAA makes no warranties or representations whatsoever regarding the availability, quality, accuracy, content, completeness or suitability for the user's needs of such information. The services, information, and data made available on the Multipurpose Marine Cadastre web site are provided 'as is' without warranties of any kind. These data are intended for coastal and ocean use planning. Not for navigation.

Support Roles

Data Steward

CC ID: 653359
Date Effective From: 2013-10
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address: coastal.info@noaa.gov
Phone: (843) 740-1202
URL: https://coast.noaa.gov

Distributor

CC ID: 653361
Date Effective From: 2013-10
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address: coastal.info@noaa.gov
Phone: (843) 740-1202
URL: https://coast.noaa.gov

Metadata Contact

CC ID: 653362
Date Effective From: 2013-10
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address: coastal.info@noaa.gov
Phone: (843) 740-1202
URL: https://coast.noaa.gov

Point of Contact

CC ID: 653360
Date Effective From: 2013-10
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address: coastal.info@noaa.gov
Phone: (843) 740-1202
URL: https://coast.noaa.gov

Extents

Currentness Reference: Publication Date

Extent Group 1

Extent Group 1 / Geographic Area 1

CC ID: 653365
W° Bound: -179.999989
E° Bound: 179.999989
N° Bound: 74.208333
S° Bound: 0.041667

Extent Group 1 / Time Frame 1

CC ID: 653364
Time Frame Type: Discrete
Start: 2013-10

Spatial Information

Spatial Representation

Representations Used

Vector: Yes

Access Information

Security Class: Unclassified
Data Access Constraints:

None

Data Use Constraints:

These data are intended for coastal and ocean use planning. Not for navigation.

URLs

URL 1

CC ID: 653355
URL: ftp://ftp.coast.noaa.gov/pub/MSP/OceanSedimentThicknessContours.zip
URL Type:
Online Resource

URL 3

CC ID: 653357
URL: https://marinecadastre.gov/data/
URL Type:
Online Resource

URL 4

CC ID: 653358
URL: https://coast.noaa.gov/
URL Type:
Online Resource

Activity Log

Activity Log 1

CC ID: 653379
Activity Date/Time: 2015-12-18
Description:

Date that the source FGDC record was last modified.

Activity Log 2

CC ID: 653378
Activity Date/Time: 2017-11-14
Description:

Converted from FGDC Content Standard for Digital Geospatial Metadata (version FGDC-STD-001-1998) using 'fgdc_to_inport_xml.pl' script. Contact Tyler Christensen (NOS) for details.

Activity Log 3

CC ID: 717468
Activity Date/Time: 2018-02-08
Description:

Partial upload of Positional Accuracy fields only.

Data Quality

Accuracy:

The attributes in this dataset are believed to be accurate.

Horizontal Positional Accuracy:

Maximum scale of intended use is 1:80,000.

Completeness Report:

Spatial and attribute properties are believed to be complete, although attribute information has been simplified. Geometric thresholds from original data are preserved. No tests have been completed for exhaustiveness.

Conceptual Consistency:

These data are believed to be logically consistent. Geometry is topologically clean.

Lineage

Sources

Sediment Thickness Contours

CC ID: 653351
Contact Name: NOAA National Geophysical Data Center; Whittaker, Joanne, Alexey Goncharov, Simon Williams, R. Dietmar Muller, German Leitchenkov
Publish Date: 2003-01-01
Extent Type: Discrete
Extent Start Date/Time: 2013-10
Citation URL: http://www.ngdc.noaa.gov/mgg/sedthick/data/version2/geotiff/sedthick_world_v2_geotiff.zip
Source Contribution:

Geotiff image converted to vector contours | Type of Source Media: online

Process Steps

Process Step 1

CC ID: 653352
Description:

Go to:

http://www.ngdc.noaa.gov/mgg/sedthick/data/version2/geotiff/sedthick_world_v2_geotiff.zip

And download

Import as a raster into a file geodatabase

Project into NAD 83,

Clip the raster so that it shows North America

Contour using ArcToolBox|Spatial Analyst Tools|Surface|Contour, selecting 200 as the contour value

Repair Geometry using ArcToolBox|Data Management Tools|Feature|Repair Geometry

Delete all superfluous fields.

Reproject data to WGS 84 Auxiliary Sphere

Process Date/Time: 2013-10-01 00:00:00

Child Items

Rubric scores updated every 15m

Rubric Score Type Title
Entity (ENT) OceanSedimentThicknessContours

Catalog Details

Catalog Item ID: 48906
Metadata Record Created By: Anne Ball
Metadata Record Created: 2017-11-14 15:56+0000
Metadata Record Last Modified By: SysAdmin InPortAdmin
Metadata Record Last Modified: 2019-07-02 15:17+0000
Metadata Record Published: 2018-02-08
Owner Org: OCM
Metadata Publication Status: Published Externally
Do Not Publish?: N
Metadata Next Review Date: 2019-02-09