Interpretation of the sidescan sonar mosaic from the study area off new London, CT

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Metadata:

Identification_Information
Data_Quality_Information
Spatial_Data_Organization_Information
Spatial_Reference_Information
Entity_and_Attribute_Information
Distribution_Information
Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: Roman N. Zajac
Publication_Date: 2000
Title:

Interpretation of the sidescan sonar mosaic from the study area off new London, CT

Edition: 1.0
Series_Information:

Series_Name: Open-File Report
Issue_Identification: 2000-304

Publication_Information:

Publication_Place: Woods Hole Field Center, Woods Hole, MA
Publisher: U.S. Geological Survey

Other_Citation_Details:

Roman N. Zajac was the compiler of this individual dataset. The accompanying chapter in the OFR includes the authors Ralph S. Lewis, Lawrence J. Poppe, David C. Twichell, Joseph Vozarik, Mary L. DiGiacomo-Cohen, and Matt Robinson.

Online_Linkage: https://doi.org/10.3133/ofr00304
Online_Linkage:

https://pubs.usgs.gov/of/2000/of00-304/htmldocs/chap10/index.htm

Larger_Work_Citation:

Citation_Information:

Originator: Valerie Paskevich
Originator: Larry Poppe
Publication_Date: 2000
Title:

Georeferenced sea-floor mapping and bottom photography in Long Island Sound

Series_Information:

Series_Name: U.S. Geological Survey Open-File Report
Issue_Identification: 00-304

Publication_Information:

Publication_Place: Woods Hole Field Center, Woods Hole, MA
Publisher: U.S. Geological Survey

Other_Citation_Details:

Valerie F. Paskevich and Lawrenc J. Poppe are the editors of the publication which contains 12 individual chapters with various authors.

Online_Linkage: https://doi.org/10.3133/ofr00304
Online_Linkage: https://pubs.usgs.gov/of/2000/of00-304/

Description:

Abstract:

This data layer is an interpretation of the sidescan sonar mosaic from the study area off New London, CT.

Purpose:

This data layer, which focuses on benthic communities, was developed as part of a cooperative project between the University of New Haven, the Connecticut DEP, and the U.S. Geological Survey. Benthic communities are an integral component of the ecology of LIS.
Understanding the role that spatial heterogeneity plays in the dynamic of benthic landscapes may be a key to developing a better understanding of the estuarine ecology and the impacts of huuman activity. The purpose of providing this data layer is to help establish a regional framework for developing a more extensive GIS for benthic communities in LIS that can be used for education, research, and environmental management.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 1992
Ending_Date: 2000

Currentness_Reference: data acquisition

Status:

Progress: Complete
Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -72.1383
East_Bounding_Coordinate: -72.0307
North_Bounding_Coordinate: 41.3143
South_Bounding_Coordinate: 41.2512

Keywords:

Theme:

Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:416caf84-eeff-4c79-a430-d08aa84bb6ea

Theme:

Theme_Keyword_Thesaurus: None
Theme_Keyword: U. S. Geological Survey
Theme_Keyword: USGS
Theme_Keyword: Coastal and Marine Geology Team
Theme_Keyword: Coastal and Marine Geology Program
Theme_Keyword: Woods Hole Field Center
Theme_Keyword: Connecticut Department of Environmental Protection
Theme_Keyword: University of New Haven
Theme_Keyword: ArcView
Theme_Keyword: arcview
Theme_Keyword: shapefile
Theme_Keyword: polygon
Theme_Keyword: Zajac
Theme_Keyword: benthic habitats
Theme_Keyword: biology
Theme_Keyword: community structure
Theme_Keyword: infauna
Theme_Keyword: sidescan sonar
Theme_Keyword: ecologic mapping

Theme:

Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: geospatial datasets
Theme_Keyword: scientific interpretation
Theme_Keyword: sea-floor characteristics

Place:

Place_Keyword_Thesaurus: None
Place_Keyword: Long Island Sound
Place_Keyword: estuary
Place_Keyword: Connecticut
Place_Keyword: New London

Access_Constraints:

The University of New Haven and the U.S. Geological Survey must be referenced as the originator of the data set in any future products or as research derived from these data.
Although this derived data set and its lineage dataset have been used by the University of New Haven and the USGS, no warranty, expressed or implied, is made by the University of New Haven or the USGS 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 the University of New Haven or the USGS in the use of the data or related materials.

Use_Constraints: None
Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Roman Zajac
Contact_Organization: University of New Haven

Contact_Position: Professor
Contact_Address:

Address_Type: mailing address
Address:

Biological and Environmental Sciences
University of New Haven
300 Orange Avenue

City: West Haven
State_or_Province: CT
Postal_Code: 06516
Country: USA

Contact_Voice_Telephone: (203) 932-7114
Contact_Electronic_Mail_Address: zajacrn@charger.newhaven.edu

Browse_Graphic:

Browse_Graphic_File_Name:

http://pubs.usgs.gov/of/of00-304/htmldocs/images/browse/nlmosint.gif

Browse_Graphic_File_Description:

image showing the extent of the GIS layer and interpretation of the sidescan sonar mosaic from the study area off new London, CT

Browse_Graphic_File_Type: GIF

Native_Data_Set_Environment:

ArcView version 3.2 shapefile format - lissound\data\chap10\nl\nlmosint.shp

Cross_Reference:

Citation_Information:

Originator: R.S Lewis(comp.)
Originator: M.L. DiGiacomo-Cohen(comp.)
Originator: D.C. Twichell(comp.)
Publication_Date: 1998
Title:

Sidescan sonar image of the sea-floor off New London, Connecticut

Series_Information:

Series_Name: U.S. Geological Survey Open-File Report
Issue_Identification: 98-502

Publication_Information:

Publication_Place: Woods Hole Field Center, Woods Hole, MA
Publisher: U.S. Geological Survey

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

Ship navigation was by differential GPS. Biological and Geological data have an assumed accuracy of about 10%.

Quantitative_Attribute_Accuracy_Assessment:

Attribute_Accuracy_Value: 10 m
Attribute_Accuracy_Explanation: Typical absolute accuracy for DGPS

Quantitative_Attribute_Accuracy_Assessment:

Attribute_Accuracy_Value: 10%
Attribute_Accuracy_Explanation: Assumed accuracy for geological and biological data

Logical_Consistency_Report:

No additional checks for topological consistancy were performed on this data set.

Completeness_Report: None
Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

Ship navigation was by differential GPS assumped to be accurate to within 10 meters

Quantitative_Horizontal_Positional_Accuracy_Assessment:

Horizontal_Positional_Accuracy_Value: 10
Horizontal_Positional_Accuracy_Explanation: Typical accuracy for DGPS

Vertical_Positional_Accuracy:

Vertical_Positional_Accuracy_Report: No tidal corrections performed
Quantitative_Vertical_Positional_Accuracy_Assessment:

Vertical_Positional_Accuracy_Value: 2
Vertical_Positional_Accuracy_Explanation: Tidal range is less than 2 m

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator: R.N. Zajac(comp.)
Publication_Date: 1996
Title:

Ecologic mapping and management-based analyses of benthic habitats and communities in Long Island Sound

Publication_Information:

Publication_Place: Hartford, CT
Publisher: Connecticut DEP

Type_of_Source_Media: paper
Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 1992
Ending_Date: 1996

Source_Currentness_Reference: Publication Date

Source_Citation_Abbreviation: Zajac, 1996
Source_Contribution:

Describes mapping and identification of benthic communities in eastern Long Island Sound

Process_Step:

Process_Description:

Mapping was performed on a sidescan sonar survey. This survey was processed at 3,479-scale utilizing the U.S.G.S. Mini Image Processing system (MIPS) in an Equatorial Mercator Projection. Processing included bottom, ratio, and radiometric corrections; sectioning the survey area; "Geoming" individual map sections; "stenciling" and "mosaicing"; and building the final image. The shading convention for this mosaic is that dark tones are interpreted as fine sediment (fine sand, silt and clay); and light tones are interpreted as coarse sediment. Rough and "grainy" patches are interpreted as glacial drift or bedrock outcrops.The image files contained here have been modified, using Arc/Info software, from the three original TIFFs delivered by University of Rhode Island. The images were converted to grids, geo-referenced, and individually reclassified in a manner similar to linear stretching to account for variations in gray scales among the three sections of the mosaic. The grids were then converted back to TIFF format with world files in Latitude/Longitude decimal degrees (no projection). Pixel size is approximately 0.8 meters.

Source_Used_Citation_Abbreviation: Lewis and others 1998
Process_Date: 1998
Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Roman Zajac
Contact_Organization: University of New Haven

Contact_Position: Professor
Contact_Address:

Address_Type: mailing and physical address
Address:

Biological and Environemtal Sciences
University of New Haven
300 Orange Avenue

City: West Haven
State_or_Province: CT
Postal_Code: 06516
Country: USA

Contact_Voice_Telephone: (203) 932-7114
Contact_Electronic_Mail_Address: zajacrn@charger.newhaven.edu

Process_Step:

Process_Description:

The outline of the mosaic was digitized in ArcInfo and the resultant data were converted into a shape file. The interpretation (polygons) was drawn manually on paper from sediment point data. These polygons were digitized in ArcInfo and the resultant data were converted into a shape file.

Process_Date: Unknown
Source_Produced_Citation_Abbreviation: nlmosint.dbf
Source_Produced_Citation_Abbreviation: nlmosint.shp
Source_Produced_Citation_Abbreviation: nlmosint.shx
Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: R.N. Zajac
Contact_Organization: University of New Haven

Contact_Position: Professor
Contact_Address:

Address_Type: mailing address
Address:

Biology and Environmental Sciences
University of New Haven
300 Orange Avenue

City: West Haven
State_or_Province: CT
Postal_Code: 06516
Country: USA

Contact_Voice_Telephone: (203) 932-7114

Process_Step:

Process_Description:

Edits to the metadata were made to fix any errors that MP v 2.9.50 flagged. This is necessary to enable the metadata to be successfully harvested for various data catalogs. Additional small edits including (but not limited to) such as adding the edition element, fixing browse graphic information etc. were perfomed on the metadata. Author names were edited to remove "ed." and "comp". Added links to access the data including the DOI link. Added USGS Thesaurus keywords. Added keywords section with USGS persistent identifier as theme keyword (PID). Fixed the ellipsoid name to agree with the datum. Fixed the denominator of flattening ratio. The SED_TYPE attribute was updated to be an enumerated domain specifying the specific values. The definition was based on information in Chapter 10 of the Larger Work citation. The units defined in the figure were compared to the shapefile with the map legend definition applied in the attribute value. Updated the distribution liability. The distribution format name was modified in an attempt to be more consistent with other metadata files of the same data format. The metadata date (but not the metadata creator) was edited to reflect the date of these changes. A generic email in the metadata contact was used, along with adding contact instructions. These edits are not all the edits performed. Additional small edits such as adding the edition element as well as other edits were performed. 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. (20230626)

Process_Date: 20230626
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: 02543-1598
Country: USA

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: GT-polygon composed of chains
Point_and_Vector_Object_Count: 56

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Grid_Coordinate_System:

Grid_Coordinate_System_Name: Universal Transverse Mercator
Universal_Transverse_Mercator:

UTM_Zone_Number: 18
Transverse_Mercator:

Scale_Factor_at_Central_Meridian: 0.999600
Longitude_of_Central_Meridian: -075.000000
Latitude_of_Projection_Origin: +00.000000
False_Easting: 500000
False_Northing: 0

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:

Abscissa_Resolution: 40
Ordinate_Resolution: 40

Planar_Distance_Units: Meters

Geodetic_Model:

Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: GRS80
Semi-major_Axis: 6378137.00
Denominator_of_Flattening_Ratio: 298.257222101

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: nlmosint.dbf
Entity_Type_Definition: Shapefile attribute file
Entity_Type_Definition_Source: ESRI

Attribute:

Attribute_Label: Area
Attribute_Definition: Area of polygon
Attribute_Definition_Source: software computed
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 2.042969
Range_Domain_Maximum: 932280.000000
Attribute_Units_of_Measure: meters

Attribute:

Attribute_Label: Perimeter
Attribute_Definition: Perimeter of polygon
Attribute_Definition_Source: software computed
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 7.405486
Range_Domain_Maximum: 80338.270000
Attribute_Units_of_Measure: meters

Attribute:

Attribute_Label: Mosaic_
Attribute_Definition:

Carried over from the ArcInfo attribute MOSAIC#. MOSAIC# is an ArcInfo internal control parameter and has no applicable relevance to the use of the data.

Attribute_Definition_Source: software computed
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 2
Range_Domain_Maximum: 57
Attribute_Units_of_Measure: unknown

Attribute:

Attribute_Label: Mosaic_id
Attribute_Definition:

Carried over from the ArcInfo attribute MOSAIC-ID. MOSAIC-ID is an ArcInfo internal control parameter and has no applicable relevance to the use of the data.

Attribute_Definition_Source: software computed
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 2
Range_Domain_Maximum: 57

Attribute:

Attribute_Label: Newcode
Attribute_Definition: A numeric coding system used to describe the Sed_type
Attribute_Definition_Source: User defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 5

Attribute:

Attribute_Label: Sed_type
Attribute_Definition: Gross lithologic description of the surficial sediments.
Attribute_Definition_Source: User defined
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: cm
Enumerated_Domain_Value_Definition: Sands / Coarase Material
Enumerated_Domain_Value_Definition_Source: Open-File Report 2000-304, Chapter 10

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: fs
Enumerated_Domain_Value_Definition: Mud/Muddy Sands
Enumerated_Domain_Value_Definition_Source: Open-File Report 2000-304, Chapter 10

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: m
Enumerated_Domain_Value_Definition: Mixed Sediment, Rubble
Enumerated_Domain_Value_Definition_Source: Open-File Report 2000-304, Chapter 10

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: sb
Enumerated_Domain_Value_Definition: Coarse Sand/Sandwaves
Enumerated_Domain_Value_Definition_Source: Open-File Report 2000-304, Chapter 10

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: sg
Enumerated_Domain_Value_Definition: Coarase Sand, Cobbles, Boulders
Enumerated_Domain_Value_Definition_Source: Open-File Report 2000-304, Chapter 10

Attribute:

Attribute_Label: Size
Attribute_Definition:

This attribute (Size) gives the areas of polygons in square meters. Same as area, but rounded to whole meters.

Attribute_Definition_Source: Zajac, 1996
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 2
Range_Domain_Maximum: 92567160
Attribute_Units_of_Measure: meters

Attribute:

Attribute_Label: Bndlngth
Attribute_Definition:

Length of the contact between the polygon and the surrounding polygons. Same as perimeter, but rounded to the whole meters.

Attribute_Definition_Source: User defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 7
Range_Domain_Maximum: 80338
Attribute_Units_of_Measure: meters

Overview_Description:

Entity_and_Attribute_Overview:

The original studies were conducted to describe the benthic communities in LIS; the corresponding data layer is presented to show the extent of the sidescan sonar mosaic off New London, in eastern Long Island Sound, and the distribution of habitats on the mosaic.

Entity_and_Attribute_Detail_Citation: Zajac, 1996

Distribution_Information:

Distributor:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Roman Zajac
Contact_Organization: University of New Haven

Contact_Position: Professor
Contact_Address:

Address_Type: mailing address
Address:

Biological and Environmental Sciences
University of New Haven
300 Orange Avenue

City: West Haven
State_or_Province: CT
Postal_Code: 06516
Country: USA

Contact_Voice_Telephone: (203) 932-7114
Contact_Electronic_Mail_Address: zajacrn@charger.newhaven.edu

Resource_Description: Long Island Sound: nlmosint.shp
Distribution_Liability:

Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data for other purposes, nor on all computer systems, nor shall the act of distribution constitute any such warranty.

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: shapefile
Format_Information_Content:

nlmosint.dbf nlmosint.shp nlmosint.shx nlmosint.avl nlmosint.sbn nlmosint.sbx

File_Decompression_Technique: No compression applied
Transfer_Size: 0.096

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

https://pubs.usgs.gov/of/2000/of00-304/lisound/data/chap10/nl/nlmosint.zip

Network_Resource_Name: https://pubs.usgs.gov/of/2000/of00-304/htmldocs/data.htm#chap10
Network_Resource_Name: https://doi.org/10.3133/ofr00304

Access_Instructions:

The first link is to download the zip file of the data directly. The second link is to the landing page of the data, The third link is to the main landing page of the publication.

Offline_Option:

Offline_Media: CD-ROM
Recording_Capacity:

Recording_Density: 650
Recording_Density_Units: Mbytes

Recording_Format: ISO 9600
Compatibility_Information:

The user must have a system with a CD-ROM capable of reading an ISO-9660 standard CD-ROM disk. To browse the information contained on this disk, the user must also have a current version of a WWW browser available. The user must also have the software installed on their computer system capable to unzip the archived file.

Fees: none

Custom_Order_Process: None
Technical_Prerequisites:

This layer is available in ArcView 3.2 format. Users must have ArcView 3.0 or later, or another GIS application capable of importing the data.

Available_Time_Period:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 20001101

Metadata_Reference_Information:

Metadata_Date: 20230626
Metadata_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Larry Poppe
Contact_Organization: U. S. Geological Survey

Contact_Position: geologist
Contact_Address:

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

Contact_Voice_Telephone: (508) 548-8700 x2314
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 the USGS.

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/ofr2000-304/nomosint.html>