Identification_Information: Citation: Citation_Information: Originator: Larry Poppe Publication_Date: 2003 Title: H11043_OUTLINE: Outline of the sidescan sonar mosaic completed during NOAA survey H11043 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/basemaps/boundaries/surveys/h11043_outline.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 (USGS), in cooperation with the National Oceanic and Atmospheric Administration (NOAA) and the Connecticut Department of Environmental Protection (CTDEP), 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 xx.x km2 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 (H11043), Long Island Sound, ArcView GIS database and contains the outline of the sidescan sonar mosaic for 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: -72.869568 East_Bounding_Coordinate: -72.777535 North_Bounding_Coordinate: 41.236090 South_Bounding_Coordinate: 41.151243 Keywords: Theme: Theme_Keyword_Thesaurus: General Theme_Keyword: U.S. Geological Survey Theme_Keyword: USGS Theme_Keyword: National Oceanic and Atmospheric Administration Theme_Keyword: NOAA Theme_Keyword: Woods Hole Science Center Theme_Keyword: NOAA Ship RUDE Theme_Keyword: H11043 survey area Theme_Keyword: sidescan sonar mosaic coverage Theme_Keyword: polygon Theme_Keyword: ArcView Theme_Keyword: outline Theme_Keyword: shapefile Place: Place_Keyword_Thesaurus: General Place_Keyword: North America Place_Keyword: United States Place_Keyword: US Atlantic East Coast Place_Keyword: U.S. East Coast Place_Keyword: northeast Place_Keyword: New England Place_Keyword: Long Island Sound Place_Keyword: Connecticut Place_Keyword: Townshend Ledge Place_Keyword: Branford Reef Place_Keyword: Branford 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: Larry 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: 02543-1598 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: h11043_outline Browse_Graphic_File_Description: Image showing extent and coverage of the H11043 survey area. Browse_Graphic_File_Type: GIF Data_Set_Credit: Larry Poppe, U.S. Geological Survey, for creating the mosaic outline. 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: No additional checks for topological consistency were performed on this data. Completeness_Report: The entire sidescan sonar mosaic area is covered by this outline. Lineage: Source_Information: Process_Step: Process_Description: The H11043 sidescan sonar mosaic was imported into the ArcView GIS project view. The mosaic area was outlined using the available graphic tools then converted to an ArcView shapefile Source_Used_Citation_Abbreviation: h11043_geo.tif Process_Date: 20030904 Source_Produced_Citation_Abbreviation: h11043_outline.dbf Source_Produced_Citation_Abbreviation: h11043_outline.dshp Source_Produced_Citation_Abbreviation: h11043_outline.shx Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Larry Poppe Contact_Organization: U.S. Geological Survey 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: 02543-1598 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: 1 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: h11043_outline Entity_Type_Definition: Shapefile Attribute Table Entity_Type_Definition_Source: ESRI 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 Distribution_Information: Distributor: Contact_Information: Contact_Person_Primary: Contact_Person: Larry Poppe Contact_Organization: U.S. Geological Survey 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: 02543-1598 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: h11043_outline Distribution_Liability: Although this data set has been used by the U.S. Geological Survey (USGS) and National Oceanic and Atmospheric Administration (NOAA), no warranty, expressed or implied, is made by the USGS or 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 the USGS or NOAA in the use of these data or related materials. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: ArcView shapefile Format_Version_Number: 3.2 Format_Specification: ESRI poygon shapefile Format_Information_Content: outline.shp, outline.shx, and outline.dbf, outline.prj, metadata.txt and browse graphic (h11043_outline.gif) File_Decompression_Technique: no compression applied Transfer_Size: 0.121 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: 20040217 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Larry Poppe Contact_Position: Geologist Contact_Address: Address_Type: mailing and physical address Address: USGS 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