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Short Citation:
National Centers for Coastal Ocean Science, 2022: Stellwagen Bank bathymetry - Percent slope derived from 5-meter bathymetric contour lines, https://www.fisheries.noaa.gov/inport/item/39491.

Item Identification

Title: Stellwagen Bank bathymetry - Percent slope derived from 5-meter bathymetric contour lines
Short Name: sbnms_percent_slope
Status: Completed
Publication Date: 2006
Abstract:

Percent slope of Stellwagen Bank bathymetry. Raster derived from 5-meter bathymetric contour lines (Quads 1-18). Collected on surveys carried out in 4 cruises 1994 - 1996 using the Kongsberg SIMRAD EM1000 multibeam system on the CHS vessel Frederick G. Creed. For each quad, multibeam data was processed, converted to an ARC/INFO point coverage, gridded with a cell-size of 13m and contoured at an interval of 5m. 18 quads were merged into one shapefile for convenience in this publication. Scale 1:25,000

Purpose:

DATA ACQUISITION:5-meter bathymetric contour lines for Stellwagen Bank (Quads 1-18). Collected on surveys carried out in 4 cruises 1994 - 1996 using the Kongsberg SIMRAD EM1000 multibeam system on the CHS vessel Frederick G. Creed. For each quad, multibeam data was processed, converted to an ARC/INFO point coverage, gridded with a cell-size of 13m and contoured at an interval of 5m. 18 quads were merged into one shapefile for convenience in this publication. Ground truthing of the image data was done with the use of a Sea Bed Observation and Sampling System (SEABOSS) designed by USGS. The SEABOSS contains two video cameras, a still camera, a pressure-depth sensor, and a modified Van Veen sediment grab sampler. This allows for rapid and effective collection of seabed images and sediment samples. DATA PROCESSING:The depth information from the topographic imagery was brought into Arc/Info, where it was gridded and contoured. The gridding was done at a 13 meters/pixel cell size resolution, and the contours were generated at 5 meter intervals.The sample, video, and photo information collected by the SEABOSS were transferred into a GIS database along with the multibeam imagery. The database now contains 8 thematic layers, including: sun-illuminated imagery, acoustic backscatter imagery, sea-floor feature polygons, 1-and 5-meter contours, videography tracklines, still photos, sediment sample information, and sediment classification polygons. Each of these layers was utilized within the GIS to provide a comprehensive analysis of the SBNMS region.Detailed digital maps are being compiled from this database, using GIS to overlay and analyze the different themes. Map layouts are created in Arc/Info and transferred into a drawing program for printed output. The published maps and digital database are now being distributed on web pages or CD-ROMs for use by scientists, managers, and the general public.In addition to these published products, three dimensional perspective views and fly-overs are being created from the multibeam imagery. These types of output provide additional visualization capabilities for the region. The digital database is now easily updateable and can be used along with navigation software to aid in additional data collection while at sea.

Notes:

625

Supplemental Information:

USGS Marine GIS Library for Massachusetts Bay (Ch. 3, file name: bathy5sb.shp)

Keywords

Theme Keywords

Thesaurus Keyword
UNCONTROLLED
ISO 19115 Topic Category geoscientificInformation
NOS Data Explorer Topic Category Bathymetry/Topography
NOS Data Explorer Topic Category Environmental Monitoring
None bathymetry

Temporal Keywords

Thesaurus Keyword
UNCONTROLLED
None 1998

Spatial Keywords

Thesaurus Keyword
UNCONTROLLED
None Stellwagen Bank

Physical Location

Organization: National Centers for Coastal Ocean Science
City: Silver Spring
State/Province: MD

Data Set Information

Data Set Scope Code: Data Set
Maintenance Frequency: Unknown
Data Presentation Form: raster digital data
Entity Attribute Overview:

Shapefile containing raster digital data. For each quad, multibeam data was processed, converted to an ARC/INFO point coverage, gridded with a cell-size of 13m and contoured at an interval of 5m. 18 quads were merged into one shapefile for convenience in this publication. Scale 1:25,000

Entity Attribute Detail Citation:

Valentine, P., J. Baker, T. Unger, C. Polloni, 1998, Sea Floor Topographic Map and Perspective-View Imagery of Quadrangles 1-18, Stellwagen Bank National Marine Sanctuary off Boston, Massachusetts, USGS Open-File Report 98-138.

Distribution Liability:

These data were prepared by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, make any warranty, expressed or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. Any views and opinions expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof. Although all data have been used by NOAA, no warranty, expressed or implied, is made by NOAA as to the accuracy of the data and/or related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by NOAA in the use of these data or related materials.NOAA makes no warranty regarding these data, expressed or implied, nor does the fact of distribution constitute such a warranty. NOAA can not assume liability for and 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.

Data Set Credit: Valentine, P., J. Baker, T. Unger, C. Polloni, 1998, Sea Floor Topographic Map and Perspective-View Imagery of Quadrangles 1-18, Stellwagen Bank National Marine Sanctuary off Boston, Massachusetts, USGS Open-File Report 98-138.

Support Roles

Data Steward

CC ID: 472283
Date Effective From: 2006
Date Effective To:
Contact (Position): NCCOS Scientific Data Coordinator
Email Address: NCCOS.data@noaa.gov

Distributor

CC ID: 472285
Date Effective From: 2006
Date Effective To:
Contact (Position): NCCOS Scientific Data Coordinator
Email Address: NCCOS.data@noaa.gov

Metadata Contact

CC ID: 472286
Date Effective From: 2006
Date Effective To:
Contact (Position): NCCOS Scientific Data Coordinator
Email Address: NCCOS.data@noaa.gov

Point of Contact

CC ID: 472284
Date Effective From: 2006
Date Effective To:
Contact (Position): NCCOS Scientific Data Coordinator
Email Address: NCCOS.data@noaa.gov

Principal Investigator

CC ID: 472287
Date Effective From: 2006
Date Effective To:
Contact (Person): Costa, Bryan
Email Address: bryan.costa@noaa.gov

Extents

Currentness Reference: Publication Date

Extent Group 1

Extent Group 1 / Geographic Area 1

CC ID: 472290
W° Bound: -70.693119
E° Bound: -70.005485
N° Bound: 42.817022
S° Bound: 42.070969

Extent Group 1 / Time Frame 1

CC ID: 472289
Time Frame Type: Discrete
Start: 2006

Spatial Information

Spatial Representation

Representations Used

Grid: Yes

Access Information

Security Class: Unclassified
Data Access Procedure:

Please contact the Stellwagen Banks NMS Research Coordinator for additional information on data access (david.wiley@noaa.gov);

Data Access Constraints:

Contact USGS: http://pubs.usgs.gov/of/1999/of99-439/

Data Use Constraints:

Contact USGS: http://pubs.usgs.gov/of/1999/of99-439/

URLs

URL 1

CC ID: 472281
URL: http://ccma.nos.noaa.gov/ecosystems/sanctuaries/stellwagen_nms/
URL Type:
Online Resource

Activity Log

Activity Log 1

CC ID: 472298
Activity Date/Time: 2012-12-05
Description:

Date that the source FGDC record was last modified.

Activity Log 2

CC ID: 472297
Activity Date/Time: 2017-04-05
Description:

Converted from FGDC Content Standards 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: 585833
Activity Date/Time: 2017-09-13
Description:

Partial upload of Spatial Info section only.

Technical Environment

Description:

Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.1.0.722

Catalog Details

Catalog Item ID: 39491
GUID: gov.noaa.nmfs.inport:39491
Metadata Record Created By: Tyler Christensen
Metadata Record Created: 2017-04-05 12:52+0000
Metadata Record Last Modified By: SysAdmin InPortAdmin
Metadata Record Last Modified: 2022-08-09 17:11+0000
Metadata Record Published: 2017-09-13
Owner Org: NCCOS
Metadata Publication Status: Published Externally
Do Not Publish?: N
Metadata Last Review Date: 2017-09-13
Metadata Review Frequency: 1 Year
Metadata Next Review Date: 2018-09-13