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U.S. Geological Survey Open-File Report 2004-1003 

BROWSE THUMBNAIL IMAGE: Image showing extent and distribution of data layer coverage.

SEDENVIRON: interpretation of the distribution of sedimentary environments of the sidescan sonar mosaic of NOAA survey H11043 off Branford, Connecticut

 

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Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Lawrence J. Poppe
Publication_Date: 2003
Title:
SEDENVIRON: interpretation of the distribution of sedimentary environments of the sidescan sonar mosaic of NOAA survey H11043 off Branford, Connecticut
Edition: 1.0
Geospatial_Data_Presentation_Form: vector digital data
Publication_Information:
Publication_Place: Woods Hole Science Center, Woods Hole, MA
Publisher: U.S. Geological Survey, Coastal and Marine Geology Program
Other_Citation_Details: Data are released via CD-ROM media.
Online_Linkage:
<http://pubs.usgs.gov/of/2004/1003/data/interp/sedenviron/sedenviron.zip>
Larger_Work_Citation:
Citation_Information:
Originator: L.J.Poppe
Originator: V.F. Paskevich
Originator: M.S. Moser
Originator: M.L. DiGiacomo-Cohen
Originator: E.B. Christman
Publication_Date: 2004
Title:
Sidescan Sonar Imagery and Surficial Geologic Interpretation of the Sea Floor off Branford, Connecticut
Edition: 1.0
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 2004-1003
Publication_Information:
Publication_Place: Woods Hole Science Center, Woods Hole, MA
Publisher: U.S. Geological Survey, Coastal and Marine Geology Program
Other_Citation_Details:
This digital publication may also be available via the web at pubs.usgs.gov
Online_Linkage: <http://pubs.usgs.gov/of/2004/1003>
Online_Linkage: <http://woodshole.er.usgs.gov/openfile/of2004-1003>
Description:
Abstract:
The U.S. Geological Survey, in cooperation with the National Oceanic and Atmospheric Administration and the Connecticut Department of Environmental Protection, has produced detailed geologic maps of the sea floor in Long Island Sound, a major East Coast estuary surrounded by the most densely populated region of the United States. These studies have built upon cooperative research with the State of Connecticut that was initiated in 1982. The current phase of this research program is directed toward studies of sea-floor sediment distribution, processes that control sediment distribution, nearshore environmental concerns, and the relation of benthic community structures to the sea-floor geology.
 
Anthropogenic wastes, toxic chemicals, and changes in land-use patterns resulting from residential, commercial, and recreational development have stressed the environment of the Sound, causing degradation and potential loss of benthic habitats (Koppelman and others, 1976; Long Island Sound Study, 1994). Detailed maps of the sea floor are needed to help evaluate the extent of adverse impacts and to help manage resources wisely in the future. Therefore, in a continuing effort to better understand Long Island Sound, we have constructed and interpreted sidescan sonar mosaics (complete-coverage acoustic images of the sea floor) within specific areas of special interest (Poppe and Polloni, 1998; fig. 1). The mosaic presented herein covers a 41.1 km square area of the sea floor in north-central Long Island Sound off Branford, Connecticut.
 
The mosaics and their interpretations serve many purposes, including: (1) defining the geological variability of the sea floor, which is one of the primary controls of benthic habitat diversity; (2) improving our understanding of the processes that control the distribution and transport of bottom sediments and the distribution of benthic habitats and associated infaunal community structures; and (3) providing a detailed framework for future research, monitoring, and management activities. The sidescan sonar mosaics also serve as base maps for subsequent sedimentological, geochemical, and biological observations, because precise information on environmental setting is important for selection of sampling sites and for accurate interpretation of point measurements.
Purpose:
This GIS overlay is a component of the Branford Survey, Long Island Sound, ArcView GIS database and shows the distribution of sedimentary environments within the study area.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2004
Currentness_Reference: publication date
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -72.869918
East_Bounding_Coordinate: -72.776520
North_Bounding_Coordinate: 41.236011
South_Bounding_Coordinate: 41.151390
Keywords:
Theme:
Theme_Keyword_Thesaurus: General
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: USGS
Theme_Keyword: Coastal and Marine Geology Program
Theme_Keyword: CMGP
Theme_Keyword: National Oceanic and Atmospheric Administration
Theme_Keyword: NOAA
Theme_Keyword: Connecticut DEP
Theme_Keyword: Woods Hole Science Center
Theme_Keyword: NOAA Ship RUDE
Theme_Keyword: environments
Theme_Keyword: sedimentary environments
Theme_Keyword: erosion
Theme_Keyword: nondeposition
Theme_Keyword: reworking
Theme_Keyword: sorting
Theme_Keyword: deposition
Theme_Keyword: ArcView
Theme_Keyword: Geographic Information System
Place:
Place_Keyword_Thesaurus: General
Place_Keyword: North America
Place_Keyword: United States
Place_Keyword: east coast
Place_Keyword: northeast
Place_Keyword: US Atlantic East Coast
Place_Keyword: U.S. East Coast
Place_Keyword: Atlantic Margin
Place_Keyword: Long Island Sound
Place_Keyword: Connecticut
Place_Keyword: Long Island Sound
Place_Keyword: Branford
Place_Keyword: Townshend Ledge
Place_Keyword: Branford Reef
Access_Constraints: None
Use_Constraints:
Public domain data are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey (USGS) as the originator of this dataset.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: Lawrence J. Poppe
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: U.S. Geological Survey
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543
Country: USA
Contact_Voice_Telephone: (508) 548-8700 x2314
Contact_Facsimile_Telephone: (508) 457-2310
Contact_Electronic_Mail_Address: lpoppe@usgs.gov
Browse_Graphic:
Browse_Graphic_File_Name: sedenviron
Browse_Graphic_File_Description:
Overview showing the coverage and extent of the sedimentary environment data layer for the H11043 NOAA sidescan sonar mosaic.
Browse_Graphic_File_Type: GIF
Data_Set_Credit:
Lawrence J. Poppe, U.S. Geological Survey, must be referenced as the originator of the dataset in any future products or research derived from these data.
Native_Data_Set_Environment:
Microsoft Windows 2000 Version 5.1 (Build 2600) Service Pack 1; ESRI ArcCatalog 8.3.0.800

Data_Quality_Information:
Logical_Consistency_Report:
All polygons were constructed in a consistent manner. No additional checks for topological consistency were performed on this data.
Completeness_Report:
Interpretations of the sedimentary environments across the sidescan sonar mosaic were completed using tonal changes and all available textural data.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
Interpretations are based on tonal changes on a sidescan sonar mosaic that was navigated with differential GPS; positional accuracy to less than 10 m.
Lineage:
Process_Step:
Process_Description:
The distribution of sedimentary environments across the mosaic was interpreted and polygons for each type of feature were produced in ArcView as shapefiles. The shapefiles were then combined using the GeoProcessing Wizard.
Source_Used_Citation_Abbreviation: h11043_geo.tif
Process_Date: 20031103
Source_Produced_Citation_Abbreviation: sedenviron.shp
Source_Produced_Citation_Abbreviation: sedenviron.shx
Source_Produced_Citation_Abbreviation: sedenviron.dbf
Source_Produced_Citation_Abbreviation: sedenviron.avl
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: Lawrence J. Poppe
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: U.S. Geological Survey
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543
Country: USA
Contact_Voice_Telephone: (508) 548-8700 x2314
Contact_Facsimile_Telephone: (508) 457-2310
Contact_Electronic_Mail_Address: lpoppe@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: G-polygon
Point_and_Vector_Object_Count: 72

Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geographic:
Latitude_Resolution: 0.000000
Longitude_Resolution: 0.000000
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: sedenviron
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: ID
Attribute_Definition: Assigned ID number
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 0
Attribute:
Attribute_Label: SEDENVIRON
Attribute_Definition: Sedimentary environment
Attribute_Definition_Source: Scientist
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Erosion or Nondeposition
Enumerated_Domain_Value_Definition:
High energy environment not permitting the accumulation of recent sediments
Enumerated_Domain_Value_Definition_Source: Scientist
Enumerated_Domain:
Enumerated_Domain_Value: Sorting or Reworking
Enumerated_Domain_Value_Definition:
Moderate energy environment that separates fine-grained sediments from coarser ones by winnowing.
Enumerated_Domain_Value_Definition_Source: Scientist
Enumerated_Domain:
Enumerated_Domain_Value: Deposition
Enumerated_Domain_Value_Definition:
Lower energy environment allowing the accumlation of modern sediments
Enumerated_Domain_Value_Definition_Source: Scientist

Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: Lawrence J. Poppe
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: U.S. Geological Survey
Address: 384 oods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543
Country: USA
Contact_Voice_Telephone: (508) 548-8700 x2314
Contact_Facsimile_Telephone: (508) 457-2310
Contact_Electronic_Mail_Address: lpoppe@usgs.gov
Resource_Description: Downloadable Data
Distribution_Liability:
Although this data set has been used by the USGS, NOAA, and the State of Connecticut, no warranty, expressed or implied, is made by the USGS, NOAA, or the State of Connecticut 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 USGS, NOAA, or the State of Connecticut in the use of these data or related materials.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: ArcView shapefile
Format_Version_Number: 3.3
Format_Specification: ESRI golygon shapefile
Format_Information_Content:
Five files: sedenviron.shp, sedenviron.shx, sedenviron.dbf, sedenviron.avl, sedenviron,prj
File_Decompression_Technique: no compression applied
Transfer_Size: 0.209
Digital_Transfer_Option:
Offline_Option:
Offline_Media: CD-ROM
Recording_Capacity:
Recording_Density: 650
Recording_Density_Units: Mbytes
Recording_Format: ISO9660
Compatibility_Information:
The user must have a CD-ROM capable of reading an ISO9660 standard CD-ROM
Fees: None
Technical_Prerequisites:
The data are available in the ESRI shapefile format. The user must have Environmental Systems Research Institute's (ESRI) ArcView 3.0 or greater or ArcGIS software to read and process the data file. In lieu of Arcview, the user may utilize another GIS application package capable of importing the data. A free GIS data viewer, ArcExplorer, is available from the ESRI website at www.esri.com/software/arcexplorer/download4.html

Access to the data and information contained on this CD-ROM was developed using the HyperText Markup Language (HTML) utilized by the World Wide Web (WWW) project. Development of the CD-ROM documentation and user interface in HTML allows a user to access the information by using a variety of WWW information browsers to facilitate browsing and locating information and data. To access the information contained on this disk with a WWW client browser, open the file 'index.htm' at the top level directory of this CD-ROM with your selected browser.

This CD-ROM should be readable by a variety of operating systems including Windows 95/98/NT, Macintosh and UNIX.

Available_Time_Period:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2004

Metadata_Reference_Information:
Metadata_Date: 20040219
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: Lawrence J. Poppe
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: U.S. Geological Survey
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543
Country: USA
Contact_Voice_Telephone: (508) 548-8700 x2314
Contact_Facsimile_Telephone: (508) 457-2310
Contact_Electronic_Mail_Address: lpoppe@usgs.gov
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
Metadata_Access_Constraints: None
Metadata_Use_Constraints: None

Generated by mp version 2.7.33 on Thu Feb 19 09:41:18 2004