Survey lines along which acoustic backscatter data were acquired using a Klein 3000 sidescan sonar and a SWATHplus interferometric sonar offshore of Massachusetts within the northern Cape Cod Bay survey area (CCB_BackscatterTracklines Esri Shapefile, Geographic, WGS84).

Metadata also available as - [Questions & Answers] - [Parseable text] - [XML]

Identification_Information:

Citation:

Citation_Information:

Originator: U.S. Geological Survey
Publication_Date: 2010
Title:

Survey lines along which acoustic backscatter data were acquired using a Klein 3000 sidescan sonar and a SWATHplus interferometric sonar offshore of Massachusetts within the northern Cape Cod Bay survey area (CCB_BackscatterTracklines Esri Shapefile, Geographic, WGS84).

Edition: 1.0
Geospatial_Data_Presentation_Form: vector digital data
Series_Information:

Series_Name: Open-File Report
Issue_Identification: 2010-1006

Publication_Information:

Publication_Place:

Woods Hole Coastal and Marine Science Center, Woods Hole, Massachusetts

Publisher: U.S. Geological Survey, Coastal and Marine Geology Program

Online_Linkage: https://doi.org/10.3133/ofr20101006
Online_Linkage:

http://pubs.usgs.gov/of/2010/1006/GIS/shapefile/CCB_BackscatterTracklines.zip

Online_Linkage: http://pubs.usgs.gov/of/2010/1006/html/appendix1.html
Larger_Work_Citation:

Citation_Information:

Originator: Brian D. Andrews
Originator: Seth D. Ackerman
Originator: Wayne E. Baldwin
Originator: Walter A. Barnhardt
Publication_Date: 2010
Title:

Geophysical and Sampling Data from the Inner Continental Shelf: Northern Cape Cod Bay, Massachusetts.

Edition: 1.0
Series_Information:

Series_Name: Open-File Report
Issue_Identification: 2010-1006

Publication_Information:

Publication_Place: Reston, VA
Publisher: U.S. Geological Survey

Online_Linkage: http://pubs.usgs.gov/of/2010/1006/

Description:

Abstract:

These data were collected under a cooperative agreement with the Massachusetts Office of Coastal Zone Management (CZM) and the U.S. Geological Survey (USGS), Coastal and Marine Geology Program, Woods Hole Coastal and Marine Science Center (WHCMSC). Initiated in 2003, the primary objective of this program is to develop regional geologic framework information for the management of coastal and marine resources. Accurate data and maps of sea-floor geology are important first steps toward protecting fish habitat, delineating marine resources, and assessing environmental changes due to natural or human impacts. The project is focused on the inshore waters of coastal Massachusetts, primarily in water depths of 3-30 meters deep. Data collected for the mapping cooperative have been released in a series of USGS Open-File Reports (http://woodshole.er.usgs.gov/project-pages/coastal_mass/html/current_map.html). The data collected in the study area located in Northern Cape Cod Bay Massachusetts includes high-resolution geophysics (bathymetry, backscatter intensity, and seismic reflection), and ground validation (sediment samples, video tracklines, and bottom photographs). The data were collected during five separate surveys conducted between 2006 and 2008 and cover 480 square kilometers of the inner continental shelf. More information about the individual USGS surveys conducted as part of the northern Cape Cod Bay project can be found on the Woods Hole Coastal and Marine Science Center Field Activity webpage: 06012: http://quashnet.er.usgs.gov/data/2006/06012/ 07001: http://quashnet.er.usgs.gov/data/2007/07001/ 07002: http://quashnet.er.usgs.gov/data/2007/07002/ 07003: http://quashnet.er.usgs.gov/data/2007/07003/ 08002: http://quashnet.er.usgs.gov/data/2008/08002/

Purpose:

The purpose of these data is to provide the trackline navigation and filenames of the 3,009 km of acoustic backscatter data acquired using a Klein 3000 sidescan sonar and a SWATHplus interferometric sonar in the northern Cape Cod Bay survey area.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20060816
Ending_Date: 20080507

Currentness_Reference:

ground condition of four separate date ranges - 20060816 to 20060823; 20070429 to 20070503; 20070725 to 20070807; 20080429 to 20080507

Status:

Progress: Complete
Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -70.643112
East_Bounding_Coordinate: -70.112701
North_Bounding_Coordinate: 42.093597
South_Bounding_Coordinate: 41.931839

Keywords:

Theme:

Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:8e2f8ab0-82d8-4f12-98e9-b72bf9753dae

Theme:

Theme_Keyword_Thesaurus: None
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: USGS
Theme_Keyword: Coastal and Marine Geology Program
Theme_Keyword: CMGP
Theme_Keyword: Woods Hole Coastal and Marine Science Center
Theme_Keyword: WHCMSC
Theme_Keyword: Seafloor
Theme_Keyword: Marine Geology
Theme_Keyword: field activity serial number 06012
Theme_Keyword: field activity serial number 07001
Theme_Keyword: field activity serial number 07002
Theme_Keyword: field activity serial number 08002
Theme_Keyword: field activity number 2006-012-FA
Theme_Keyword: field activity number 2007-001-FA
Theme_Keyword: field activity number 2007-002-FA
Theme_Keyword: field activity number 2008-002-FA
Theme_Keyword: sidescan
Theme_Keyword: navigation tracklines
Theme_Keyword: sonar navigation
Theme_Keyword: sidescan-sonar
Theme_Keyword: sonar
Theme_Keyword: Klein
Theme_Keyword: Klein 3000
Theme_Keyword: k3k
Theme_Keyword: acoustic backscatter
Theme_Keyword: SEA, Ltd. SWATHplus
Theme_Keyword: interferometry
Theme_Keyword: R/V Megan T. Miller
Theme_Keyword: R/V Rafael

Theme:

Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: oceans
Theme_Keyword: location

Theme:

Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: navigational data
Theme_Keyword: marine geophysics
Theme_Keyword: geospatial datasets

Place:

Place_Keyword_Thesaurus: None
Place_Keyword: United States
Place_Keyword: North America
Place_Keyword: Atlantic Ocean
Place_Keyword: Gulf of Maine
Place_Keyword: Cape Cod Bay
Place_Keyword: Massachusetts Bay
Place_Keyword: Duxbury
Place_Keyword: Provincetown

Stratum:

Stratum_Keyword_Thesaurus: None
Stratum_Keyword: Seafloor
Stratum_Keyword: Surface
Stratum_Keyword: sea floor

Temporal:

Temporal_Keyword_Thesaurus: None
Temporal_Keyword: 2006
Temporal_Keyword: 2007
Temporal_Keyword: 2008

Access_Constraints: None
Use_Constraints:

Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey as the source of this information.

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Brian Andrews
Contact_Organization: U.S. Geological Survey

Contact_Position: Geographer
Contact_Address:

Address_Type: mailing and physical address
Address: 384 Woods Hole Rd.
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Country: USA

Contact_Voice_Telephone: 508-548-8700 x2348
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: bandrews@usgs.gov

Browse_Graphic:

Browse_Graphic_File_Name:

http://pubs.usgs.gov/of/2010/1006/GIS/browse_jpg/CCB_BackscatterTracklines.jpg

Browse_Graphic_File_Description: Thumbnail image of backscatter tracklines
Browse_Graphic_File_Type: JPEG

Native_Data_Set_Environment:

Microsoft Windows 2000 Version 5.2 (Build 3790) Service Pack 2; ESRI ArcCatalog 9.3.1.1850

Cross_Reference:

Citation_Information:

Originator: Walter A. Barnhardt
Originator: Brian D. Andrews
Originator: Bradford Butman
Publication_Date: 2006
Title:

High-Resolution Mapping of the Inner Continental Shelf: Nahant to Gloucester, Massachusetts

Series_Information:

Series_Name: Open-File Report
Issue_Identification: 2005-1293

Publication_Information:

Publication_Place: Reston, VA
Publisher: U.S. Geological Survey

Online_Linkage: http://pubs.usgs.gov/of/2005/1293/

Cross_Reference:

Citation_Information:

Originator: Seth D. Ackerman
Originator: Bradford Butman
Originator: Walter A. Barnhardt
Originator: William W. Danforth
Originator: James M. Crocker
Publication_Date: 2006
Title:

High-Resolution Geologic Mapping of the Inner Continental Shelf: Boston Harbor and Approaches, Massachusetts

Series_Information:

Series_Name: Open-File Report
Issue_Identification: 2006-1008

Publication_Information:

Publication_Place: Reston, VA
Publisher: U.S. Geological Survey

Online_Linkage: http://pubs.usgs.gov/of/2006/1008/

Cross_Reference:

Citation_Information:

Originator: Walter A. Barnhardt
Originator: Brian D. Andrews
Originator: Seth D. Ackerman
Originator: Wayne E. Baldwin
Originator: Christopher J. Hein
Publication_Date: 2009
Title:

High-Resolution Geological Mapping of the Inner Continental Shelf: Cape Ann to Salisbury Beach, Massachusetts

Series_Information:

Series_Name: Open-File Report
Issue_Identification: 2007-1373

Publication_Information:

Publication_Place: Reston, VA
Publisher: U.S. Geological Survey

Online_Linkage: http://pubs.usgs.gov/of/2007/1373/

Cross_Reference:

Citation_Information:

Originator: Walter A. Barnhardt
Originator: Seth D. Ackerman
Originator: Brian D. Andrews
Originator: Wayne E. Baldwin
Publication_Date: 2010
Title:

Geophysical and Sampling Data from the Inner Continental Shelf: Duxbury to Hull, Massachusetts

Series_Information:

Series_Name: Open-File Report
Issue_Identification: 2009-1072

Publication_Information:

Publication_Place: Reston, VA
Publisher: U.S. Geological Survey

Online_Linkage: http://pubs.usgs.gov/of/2009/1072/

Cross_Reference:

Citation_Information:

Originator: William W. Danforth
Publication_Date: 1997
Title:

XSonar/ShowImage: A complete system for rapid sidescan-sonar processing and display.

Series_Information:

Series_Name: Open-File Report
Issue_Identification: 97-686

Publication_Information:

Publication_Place: Reston, VA
Publisher: U.S. Geological Survey

Online_Linkage: http://pubs.er.usgs.gov/usgspubs/ofr/ofr97686

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report: All attributes were checked in a consistent manner.

Logical_Consistency_Report:

Any spurious data points were removed during processing. Duplicate names may exist for the FILENAME attribute because this is made up of data from multiple surveys; however further querying the data by SURVEY attribute will distinguish a unique trackline for each record in this spatial dataset.

Completeness_Report:

Only the subset of sidescan-sonar trackline navigation data collected during field activities 06012 and 07001 that are within the northern Cape Cod Bay study area between Duxbury Beach and Provincetown have been included in this spatial dataset. This dataset includes all the tracklines collected during field activities 07002 and 08002.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

Field activities 06012 and 07002: The Klein 3000 towfish was deployed from the stern A-frame of the R/V Megan T. Miller. Real-time kinematic (RTK) GPS navigation data were provided by an Ashtech Z-Extreme receiver (an Ashtech BR2G DGPS was used as a backup system) and recorded to the raw data files (XTF) via the Klein SonarPro (version 9.6 & 10.0) acquisition software. During some portions of the survey, technical difficulties caused the GPS systems to malfunction and lose the "fixed" RTK signal. When this occurred, the navigation system generally defaulted to a "float" RTK or DGPS signal, or the navigation was lost. When possible, surveying was halted until a reliable GPS signal was restored. A digital cable counter attached to the winch used to deploy the sidescan-sonar towfish measured changes in the amount of cable extended from the A-frame and updated the cable out parameter in SonarPro. Using the cable out value and linear offset between the A-frame and the RTK-GPS antenna (mounted mid-ship on the starboard side directly above the SWATHplus transducers), Sonar Pro calculated towfish layback positions in real time and recorded them to the XTF file headers. A conservative estimate of positional accuracy is ± 10 m, but when the navigation system was providing the "fixed" RTK signal, positional accuracy is likely < 1 m. Positional uncertainty arises because layback calculations do not account for fish motion behind the vessel, which is caused by sea state and vessel speed induced changes in the angle and scope of the tow cable. Field Activity 07002 SEA SWATHplus backscatter: The winch used to deploy and retrieve the Klein 3000 towfish was inoperable between Aug 1-2, 2007. During this time, the acoustic backscatter collected with the 117 kHz SEA SWATHplus interferometric sonar was used to fill the gap in the Klein 3000 backscatter. The SWATHplus transducers were mounted on a rigid pole, approximately 2.6 m below the water line, along the starboard side of the R/V Megan T. Miller. Real-time kinematic (RTK) GPS navigation data were provided by an Ashtech Z-Surveyor Extreme receiver (an Ashtech BR2G DGPS was used as a backup navigation system) and recorded to the raw data files (SXR) via the SWATHplus (version 2.07) acquisition software. A conservative estimate of positional accuracy is likely <1 m. Field activities 07001 and 08002: The Klein 3000 towfish was deployed from a davit on the port side aft on the R/V Rafael at a fixed distance that was accounted for during acquisition. Real-time kinematic (RTK) GPS navigation data were provided by an Ashtech Z-Surveyor Extreme receiver and recorded to the raw data files (XTF) via the Klein SonarPro (version 9.6 and 10.0) acquisition software. A conservative estimate of positional accuracy is ± 10 m, but when the navigation system was providing the "fixed" RTK signal, positional accuracy is likely <1 m.

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator:

Information unavailable from original metadata. Assumed to be USGS.

Publication_Date: unknown
Title: Information unavailable from original metadata.
Other_Citation_Details:

This file had a source contribution, but no other source information. This information had to be modified to meet the standard.

Type_of_Source_Media: Information unavailable from original metadata.
Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20060816
Ending_Date: 20080507

Source_Currentness_Reference:

Information unavailable from original metadata, but assumed to be the same as the time period of content. Ground condition of four separate date ranges - 20060816 to 20060823; 20070429 to 20070503; 20070725 to 20070807; 20080429 to 20080507.

Source_Citation_Abbreviation: Information unavailable from original metadata.
Source_Contribution:

Acoustic backscatter data acquisition for field activities 06012 and 07002: The Klein 3000 towfish was deployed from the stern A-frame of the R/V Megan T. Miller. A digital cable counter attached to the winch used to deploy the sidescan-sonar towfish measured changes in the amount of cable extended from the A-frame and updated the "cable out" parameter in SonarPro acquisition software (version 9.6). During survey 07002 The winch used to deploy and retrieve the Klein 3000 towfish was inoperable between Aug 1and 2, 2007. During this time, the acoustic backscatter collected with the 117 kHz SEA SWATHplus interferometric sonar was used to fill the gap in the Klein 3000 backscatter. The SWATHplus transducers were mounted on a rigid pole, approximately 2.6 m below the water line, along the starboard side of the R/V Megan T. Miller Acoustic backscatter data acquisition for field activities 07001 and 08002: The Klein 3000 towfish was deployed from a davit on the port side of the R/V Rafael approximately 1 m astern and 0.5 m below the water surface. Swath width was 100 m either side of the vessel (200 m total) for field activities 06012, 07001 and 08002. Swath width for field activity 07002 was increased to 150 m range (300 m total) because tracklines we spaced 150 m apart.

Process_Step:

Process_Description:

Navigation was extracted at a 1 minute interval from the raw sidescan sonar data (XTF format) in XSonar (version: 1.1) using the 'demultiplex' function (Danforth and others, 1991). The ASCII navigation from Xsonar was and concatenated for each survey (using shell scripts convertXsonarNav (no version) and Xsonar2ArcNav (no version)) into comma-separated value (CSV) text files with the following attributes: East, North, Julian Day, Line, Lon, Lat. Separate CSV files were generated for each of the four geophysical surveys.

Process_Date: 2009
Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Brian Andrews
Contact_Organization: U.S. Geological Survey

Contact_Position: Geographer
Contact_Address:

Address_Type: mailing and physical address
Address: 384 Woods Hole Rd.
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Country: USA

Contact_Voice_Telephone: 508-548-8700 x2348
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: bandrews@usgs.gov

Process_Step:

Process_Description:

In ArcCatalog (version 9.3), the ASCII navigation file in CSV format for each survey was converted to a point feature class using ArcCatalog (version 9.3) by right-clicking on the comma separated text file -- Create Feature Class -- from XY table. {output file: "SurveyName"_k3k_navpts.shp in geographic coordinates].

Process_Date: 2009
Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Brian Andrews
Contact_Organization: U.S. Geological Survey

Contact_Position: Geographer
Contact_Address:

Address_Type: mailing and physical address
Address: 384 Woods Hole Rd
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Country: USA

Contact_Voice_Telephone: 508-548-8700 x2348
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: bandrews@usgs.gov

Process_Step:

Process_Description:

VAC Extras tool (version: 2.04 FeatConv - Points to Line v2; USGS in-house software) was then used within ArcMap (version 9.3) to convert the point shapefile for each survey into a polyline shapefile. Text attributes for "Survey", "Sonar", and "Mosaic" were added to each shapefile and the values were calculated using the "Field Calculator" in the context menu in ArcCatalog (version 9.3). The backscatter tracklines from each of the four surveys were merged into one shapefile (CCB_BackscatterTracklines.shp) using the "Merge" tool in ArcToolbox (version 9.3).

Process_Date: 2009
Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Brian Andrews
Contact_Organization: U.S. Geological Survey

Contact_Position: Geographer
Contact_Address:

Address_Type: mailing and physical address
Address: 384 Woods Hole Rd
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Country: USA

Contact_Voice_Telephone: 508-548-8700 x2348
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: bandrews@usgs.gov

Process_Step:

Process_Description:

Append tracklines for backscatter data collected with the SWATHplus interferometric sonar. In ArcMap (version 9.3) selected the tracklines (L67f1-L73f1 survey 07002 ) from the CCB_BathTracklines.shp where backscatter was collected with the SWATHplus interferometric sonar was used to fill the gap in the Klein 3000 backscatter and exported to a new shapefile (CCB_SWATHplus_bstracklines.shp). Reformatted shapefile attributes to match the attributes in CCB_BackscatterTracklines.shp and then appended CCB_SWATHplus_bstracklines.shp to CCB_BackscatterTracklines.shp. Using ArcCatalog (version 9.3) added the attribute Length_KM and used the "calculate geometry" context menu to calculate the length in km of each line using the UTM Zone 19N coordinate system.

Source_Used_Citation_Abbreviation: CCB_BathTracklines.shp (this publication)
Process_Date: 200912
Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Brian Andrews
Contact_Organization: U.S. Geological Survey

Contact_Position: Geographer
Contact_Address:

Address_Type: mailing and physical address
Address: 384 Woods Hole Rd.
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Country: USA

Contact_Voice_Telephone: 508-548-8700 x2348
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: bandrews@usgs.gov

Process_Step:

Process_Description:

Edits to the metadata were made to fix any errors that MP v 2.9.30 flagged. This is necessary to enable the metadata to be successfully harvested for various data catalogs. In some cases, this meant adding text "Information unavailable" or "Information unavailable from original metadata" for those required fields that were left blank. Other minor edits were probably performed (title, publisher, publication place, etc.). The format of the time period of content had to be fixed. An online link to the larger work citation had to be fixed. This file had a source contribution, but no other source information. This information had to be modified to meet the standard. The metadata date (but not the metadata creator) was edited to reflect the date of these changes. The metadata available from a harvester may supersede metadata bundled within a download file. Compare the metadata dates to determine which metadata file is most recent.

Process_Date: 20151120
Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey
Contact_Person: VeeAnn A. Cross

Contact_Position: Marine Geologist
Contact_Address:

Address_Type: mailing and physical address
Address: 384 Woods Hole Rd.
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543

Contact_Voice_Telephone: 508-548-8700 x2251
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: vatnipp@usgs.gov

Process_Step:

Process_Description: USGS Thesaurus keywords added to the keyword section.
Process_Date: 20180720
Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey
Contact_Person: VeeAnn A. Cross

Contact_Position: Marine Geologist
Contact_Address:

Address_Type: Mailing and Physical
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598

Contact_Voice_Telephone: 508-548-8700 x2251
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: vatnipp@usgs.gov

Process_Step:

Process_Description: Crossref DOI link was added as the first link in the metadata.
Process_Date: 20191118
Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey
Contact_Person: VeeAnn A. Cross

Contact_Position: Marine Geologist
Contact_Address:

Address_Type: Mailing and Physical
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598

Contact_Voice_Telephone: 508-548-8700 x2251
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: vatnipp@usgs.gov

Process_Step:

Process_Description:

Added keywords section with USGS persistent identifier as theme keyword.

Process_Date: 20200908
Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey
Contact_Person: VeeAnn A. Cross

Contact_Position: Marine Geologist
Contact_Address:

Address_Type: Mailing and Physical
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598

Contact_Voice_Telephone: 508-548-8700 x2251
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: vatnipp@usgs.gov

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: String
Point_and_Vector_Object_Count: 643

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: D_WGS_1984
Ellipsoid_Name: WGS_1984
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257224

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: CCB_BackscatterTracklines
Entity_Type_Definition:

Tracklines for backscatter data collected in the Cape Cod Bay survey area.

Entity_Type_Definition_Source: USGS

Attribute:

Attribute_Label: FID
Attribute_Definition: Internal feature number.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:

Unrepresentable_Domain:

Sequential unique whole numbers that are automatically generated.

Attribute:

Attribute_Label: Shape
Attribute_Definition: Feature geometry.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:

Unrepresentable_Domain: Coordinates defining the features.

Attribute:

Attribute_Label: LINENAME
Attribute_Definition:

Name of sidescan-sonar file recorded along the survey line. This name is assigned by SonarPro acquisition software and is composed of Hypack survey line+ date+time. Where linename = l100f106081514400 l100f1= Hypack survey line, 060815 = year, month, day (2006, August 15), and 14400 = time stamp in UTC of start of line 14 hours, 40 minutes 0 seconds

Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Unrepresentable_Domain: Information unavailable from original metadata.

Attribute:

Attribute_Label: JD
Attribute_Definition: Julian Day the data were collected
Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Unrepresentable_Domain: Information unavailable from original metadata.

Attribute:

Attribute_Label: Survey
Attribute_Definition: WHCMSC field activity number
Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Unrepresentable_Domain: Information unavailable from original metadata.

Attribute:

Attribute_Label: Sonar
Attribute_Definition: Type of Sonar used to collect the backscatter data
Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Unrepresentable_Domain: Character string of width 25

Attribute:

Attribute_Label: Mosaic
Attribute_Definition:

Identifies the lines used to as source for the final backscatter mosaic.

Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Unrepresentable_Domain: Character string of width 10

Attribute:

Attribute_Label: Length_KM
Attribute_Definition:

Length of the polyline feature in kilometers (calculated using UTM Zone 19, WGS84).

Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.0024
Range_Domain_Maximum: 9.76
Attribute_Units_of_Measure: kilometers (km)

Distribution_Information:

Distributor:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Brian Andrews
Contact_Organization: U.S. Geological Survey

Contact_Position: Geographer
Contact_Address:

Address_Type: mailing and physical address
Address: 384 Woods Hole Rd.
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543
Country: USA

Contact_Voice_Telephone: 508-548-8700 x2348
Contact_Electronic_Mail_Address: bandrews@usgs.gov

Resource_Description: Downloadable Data
Distribution_Liability:

Neither the U.S. Government, the Department of the Interior, nor the USGS, nor any of their employees, contractors, or subcontractors, make any warranty, express or implied, nor assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, nor represent that its use would not infringe on privately owned rights. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data or related materials. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: SHP
Format_Version_Number: ArcGIS 9.3
Format_Specification: ESRI polyline shapefile
Format_Information_Content:

Trackline navigation for acoustic backscatter collected within the northern Cape Cod Bay survey area.

File_Decompression_Technique: WinZip
Transfer_Size: 0.541

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

http://pubs.usgs.gov/of/2010/1006/GIS/shapefile/CCB_BackscatterTracklines.zip

Access_Instructions: Data can be downloaded via the World Wide Web (WWW)

Offline_Option:

Offline_Media: DVD-ROM
Recording_Capacity:

Recording_Density: 4.75
Recording_Density_Units: Gbytes

Recording_Format: UDF

Fees: none

Technical_Prerequisites:

This zip file contains data available in Environmental Systems Research Institute (ESRI) shapefile format. The user must have software capable of uncompressing the WinZip file and displaying the shapefile. In lieu of ArcView or ArcGIS, the user may utilize another GIS application package capable of importing the data. A free data viewer, ArcExplorer, capable of displaying the data is available from ESRI at www.esri.com.

Metadata_Reference_Information:

Metadata_Date: 20240318
Metadata_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Brian Andrews
Contact_Organization: U.S. Geological Survey

Contact_Position: Geographer
Contact_Address:

Address_Type: mailing and physical address
Address: 384 Woods Hole Rd.
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Country: USA

Contact_Voice_Telephone: 508-548-8700 x2348
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: whsc_data_contact@usgs.gov
Contact_Instructions:

The metadata contact email address is a generic address in the event the person is no longer with USGS. (updated on 20240318)

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time

This page is <https://cmgds.marine.usgs.gov/catalog/whcmsc/open_file_report/ofr2010-1006/CCB_BackscatterTracklines.shp.html>