Identification_Information: Citation: Citation_Information: Originator: K.Y. McMullen Publication_Date: 2004 Title: H11044SEDDIST: Distribution of Surficial Sediments of NOAA H11044 Sidescan Sonar Mosaic in West-Central Long Island Sound Edition: 1.0 Geospatial_Data_Presentation_Form: vector digital data Series_Information: Series_Name: Open-File Report Issue_Identification: 2005-1018 Publication_Information: Publication_Place: Woods Hole Science Center, Woods Hole, MA Publisher: U.S. Geological Survey, Coastal and Marine Geology Program Online_Linkage: http://pubs.usgs.gov/of/2005/1018/data/interp/sedimentdist/h11044seddist.zip Larger_Work_Citation: Citation_Information: Originator: K.Y. McMullen Originator: L.J. Poppe Originator: V.F. Paskevich Originator: E.F. Doran Originator: M.S. Moser Originator: E.B. Christman Originator: A.L Beaver Originator: E.B. Christman Originator: A.L. Beaver Publication_Date: 2005 Title: Surficial Geology of the Sea Floor in West-Central Long Island Sound as shown by Sidescan Sonar Imagery Edition: 1.0 Series_Information: Series_Name: Open-File Report Issue_Identification: 2005-1018 Publication_Information: Publication_Place: Woods Hole Science Center, Woods Hole, MA Publisher: U.S. Geological Survey, Coastal and Marine Geology Program Other_Citation_Details: 1 DVD-ROM Online_Linkage: http://pubs.usgs.gov/of/2005/1018/ 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 surfsiment distribution, processes that control surfsiment 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 stressurfs 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. The mosaic presented herein covers almost 300 km square area of the sea floor in west-central Long Island Sound off Milford, Connecticut. The mosaics and their interpretations (represented in part by this data layer) 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 surfsiments 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 surfsimentological, 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 data layer is a component of the Milford / West-Central Survey, Long Island Sound, ArcGIS database and represents an inpretation of the sidescan sonar mosaic for the study area. The interpretation can be used as an overlay for the mosaic image and shows the distribution of surficial sediments in the study area such as gravel, sand, silty sand, etc. This layer can be used in conjunction with layers: h11044sedenv.shp, h11044int.shp, and images h11044_geo_wgs84_enhan.tif and h11044_geo_wgs84.tif Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2001 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -73.131256 East_Bounding_Coordinate: -72.936531 North_Bounding_Coordinate: 41.242020 South_Bounding_Coordinate: 41.023193 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: Woods Hole Science Center Theme_Keyword: WHSC Theme_Keyword: NOAA Ship RUDE Theme_Keyword: ArcGIS Theme_Keyword: sidescan sonar interpretation Theme_Keyword: Long Island Sound Resource Center Theme_Keyword: surficial sediments Theme_Keyword: gravel Theme_Keyword: sand Theme_Keyword: silt Theme_Keyword: clay Theme_Keyword: mud Theme_Keyword: Quaternary Theme_Keyword: Holocene Theme_Keyword: polygon shapefile Theme_Keyword: Open-File Report 2005-1018 Theme_Keyword: OFR 2005-1018 Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: oceans and estuaries Theme_Keyword: geoscientificInformation Place: Place_Keyword_Thesaurus: General Place_Keyword: Long Island Sound Place_Keyword: Connecticut Place_Keyword: U.S. East Coast Place_Keyword: Milford Place_Keyword: Lordship Place_Keyword: Stratford Shoal Place_Keyword: Middle Ground Place_Keyword: North America Place_Keyword: United States Place_Keyword: Atlantic Ocean Place_Keyword: North Atlantic Ocean Place_Keyword: northeast United States Temporal: 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), the National Oceanic and Atmospheric Administration, and Long Island Sound Resource Center as the originators of this dataset. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Larry Poppe Contact_Organization: U.S. Geoogical Survey Contact_Position: Geologist Contact_Address: Address_Type: mailing and physical 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: lpoppe@usgs.gov Browse_Graphic: Browse_Graphic_File_Name: http://pubs.usgs.gov/of/2005/1018/data/interp/sedimentdist/h11044seddist-thumb.gif Browse_Graphic_File_Description: Thumbnail image showing the sediment distribution of the NOAA H11044 sidescan sonar mosaic. Browse_Graphic_File_Type: GIF Browse_Graphic: Browse_Graphic_File_Name: http://pubs.usgs.gov/of/2005/1018/data/interp/sedimentdist/h11044seddist.gif Browse_Graphic_File_Description: Overview image showing the sediment distribution of the NOAA H11044 sidescan sonar mosaic. Browse_Graphic_File_Type: GIF Data_Set_Credit: The U.S. Geological Survey (USGS), National Oceanic and Atmospheric Administration (NOAA), and Long Island Sound Resource Center must be acknowledged as the originators of this data set. Native_Data_Set_Environment: Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.0.0.535 Cross_Reference: Citation_Information: Originator: K.Y. McMullen Originator: L.J. Poppe Originator: M.L. DiGiacomo-Cohen Originator: M.S. Moser Originator: E.B. Christman Publication_Date: 2005 Title: Surficial Geology of the Sea Floor in West-Central Long Island Sound as shown by Sidescan Sonar Imagery Edition: 1.0 Series_Information: Series_Name: Northeastern Geology and Environmental Sciences Issue_Identification: v. 27, no. 1, p. 60-70 Publication_Information: Publication_Place: Lawrence, Kansas Publisher: Allen Press Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Attributes have been visually checked by the compilers. Logical_Consistency_Report: Several shapefiles representing various features identified on the mosaic were combined to create this data layer. The layers were edited and processed in a consistent manner. Completeness_Report: Layer is complete as interpreted for these features. Positional_Accuracy: Horizontal_Positional_Accuracy: Lineage: Source_Information: Source_Citation: Citation_Information: Originator: U.S. Geological Survey Originator: National Oceanic and Atmospheric Administration Originator: Long Island Sound Resource Center Publication_Date: 2004 Title: h11044_geo.tif Geospatial_Data_Presentation_Form: remote-sensing image Source_Scale_Denominator: 1 meter resolution Type_of_Source_Media: CD-ROM Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2001 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: h11044_geo.tif Source_Contribution: Modified sidescan sonar mosaic (originally created by National Oceanic and Atmospheric Administration (NOAA). The sonar image was visually interpreted to create this data layer. Process_Step: Process_Description: The sidescan sonar imagery combined with sediment data from grab samples was used to create the shapefiles representing the distribution of various surficial sediment types such as gravel, sand, silty sand, etc. Source_Used_Citation_Abbreviation: h11044_geo.tif Process_Date: 2004 Source_Produced_Citation_Abbreviation: newgravel.shp Source_Produced_Citation_Abbreviation: newgravelly.shp Source_Produced_Citation_Abbreviation: newsand.shp Source_Produced_Citation_Abbreviation: newsand-silt-clay.shp Source_Produced_Citation_Abbreviation: newsilt.shp Source_Produced_Citation_Abbreviation: newsiltysand.shp Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Kate McMullen Contact_Organization: USGS 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 Process_Step: Process_Description: The shapefiles were converted to ArcGIS coverage format, combined, edited, and cleaned (for content and consistent topology). A single study area boundary was edited and used for all associated data layers. Polygons and arcs were attributed. Process_Date: 2004 Source_Produced_Citation_Abbreviation: h11044seddist.shp Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Mary DiGiacomo-Cohen Contact_Organization: Long Island Sound Resource Center Contact_Position: Geologist / GIS Analyst Contact_Address: Address_Type: mailing and physical address Address: Long Island Sound Resource Center Address: 1080 Shennecossett Rd City: Groton State_or_Province: CT Postal_Code: 06340 Country: USA Contact_Voice_Telephone: (860) 405-9015 Contact_Electronic_Mail_Address: lisrc@uconnvm.uconn.edu 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: 56 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: WGS84 Semi-major_Axis: 6378137.000000 Denominator_of_Flattening_Ratio: 298.257224 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: h11044seddist 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: AREA Attribute_Definition: Area of feature in native units squared. Attribute_Definition_Source: Software Computed Attribute_Domain_Values: Unrepresentable_Domain: Positive real numbers that are automatically generated. Attribute: Attribute_Label: PERIMETER Attribute_Definition: Perimeter of feature in native units. Attribute_Definition_Source: Software Computed Attribute_Domain_Values: Unrepresentable_Domain: Positive real numbers that are automatically generated. Attribute: Attribute_Label: H11044SURF Attribute_Definition: ArcInfo internal feature id. Field has no applicable relevance to the data. Attribute_Definition_Source: USGS Attribute: Attribute_Label: H11044SU_1 Attribute_Definition: ArcInfo internal feature id. Field has no applicable relevance to the data. Attribute_Definition_Source: USGS Attribute: Attribute_Label: SURFICIAL Attribute_Definition: interpretation of sidescan sonar mosaic's distribution of surficial sediments Attribute_Definition_Source: compiler Attribute_Domain_Values: Unrepresentable_Domain: Character String Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: gravel Enumerated_Domain: Enumerated_Domain_Value: gravelly sediment Enumerated_Domain: Enumerated_Domain_Value: sand Enumerated_Domain: Enumerated_Domain_Value: silty sand Enumerated_Domain: Enumerated_Domain_Value: sand-silt-clay Enumerated_Domain: Enumerated_Domain_Value: silt, sandy or clayey silt, and mud Overview_Description: Entity_and_Attribute_Overview: Polygons are attributed to represent the distribution of surficial sediments in the study area (gravel, sand, silty sand, etc). 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: 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 Distribution_Liability: Although these data have been used by the U.S. Geological Survey, U.S. Department of the Interior, no warranty expressed or implied is made by the U.S. Geological Survey as to the accuracy of the data. 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: 3.3 Format_Specification: ESRI polygon shapefile Format_Information_Content: The SHP file contains the geospatial data. The SHX file contains the index of the geospatial data. The DBF file contains the attribute data in dBASE format. The PRJ file contains the coordinate system information (optional). The AVL file contains the legend information (optional). The SBN and SBX files contain the spatial index of the geospatial data (optional). The XML file contains the metadata describing the data set .shp.xml. An ASCII version of the metadata file. A browse graphic showing the data layer coverage and extent (optional). File_Decompression_Technique: zip Transfer_Size: 0.101 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/of/2005/1018/data/interp/sedimentdist/h11044seddist.zip Offline_Option: Offline_Media: DVD-ROM Recording_Capacity: Recording_Density: 4.75 Recording_Density_Units: Gbytes Fees: None Technical_Prerequisites: These data are available in Environmental Systems Research Institute (ESRI) shapefile format. The user must have ArcGIS® or ArcView® 3.0 or greater software to read and process the data file. In lieu of ArcView or ArcGIS, the user may utilize another GIS application package capable of the importing data. A free data viewer, arcexplorer, capable of displaying the data is available from ESRI at www.esri.com. Available_Time_Period: Time_Period_Information: Single_Date/Time: Calendar_Date: 2005 Metadata_Reference_Information: Metadata_Date: 20050805 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 and physical 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: 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 Metadata_Extensions: Online_Linkage: http://www.esri.com/metadata/esriprof80.html Profile_Name: ESRI Metadata Profile