Identification_Information: Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 2007 Title: H11250_GEO_2MMBES.TIF: Color Hill-Shaded GeoTIFF Image Showing the 2-m bathymetry Generated from NOAA Survey H11250 in Eastern Long Island Sound (Geographic) Edition: 1.0 Geospatial_Data_Presentation_Form: remote-sensing image Series_Information: Series_Name: Open-File Report Issue_Identification: 2007-1012 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/2007/1012/data/bathy/geotifs/geo/h11250_geo_2mmbes.zip Online_Linkage: http://pubs.usgs.gov/of/2007/1012/data/bathy/geotifs/geo/ Online_Linkage: http://pubs.usgs.gov/of/2007/1012/html/catalog.html Larger_Work_Citation: Citation_Information: Originator: L.J. Poppe Originator: M.L. DiGiacomo-Cohen Originator: E.F. Doran Originator: S.M. Smith Originator: H.F. Stewart Originator: N.A. Forfinski Publication_Date: 2007 Title: Geologic Interpretation and Multibeam Bathymetry of the Sea Floor in the Vicinity of the Race, Eastern Long Island Sound Edition: 1.0 Series_Information: Series_Name: Open-File Report Issue_Identification: 2007-1012 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/2007/1012/ 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 mulitbeam bathymetric data within specific areas of special interest. The color GeoTIFF of hill-shaded bathymetry presented herein covers a roughly 94 km square area of the sea floor in the area known as the Race at the eastern end of Long Island Sound. The original multibeam bathymetric data were collected during October 2003 as part of charting applications aboard the NOAA Survey Vessel Thomas Jefferson. A Simrad EM1002 multibeam system mounted on the hull of this vessel was used to acquire over 560 km of survey lines from the deeper water (>20 m) parts of the study area. Two 29-foot launches with hull-mounted Reson systems were deployed from the ship and were used to acquire an additional 637 km of survey lines from the shallower areas. Detailed bathymetic data 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 bathymetric data models 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: To release a color GeoTIFF image of the 2-m bathymetry generated from NOAA survey H11250 in easternmost Long Island Sound and westernmost Block Island Sound. This hill-shaded GeoTIFF serves as a starting point for a geologic study of the area surrounding the Race in eastern Long Island Sound and can be used as a base for interpretative layers. The GeoTIFF can be used in ArcMap or ArcView to dramatically display the varied bathymetry and geologic features of the area. Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2003 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -72.154000 East_Bounding_Coordinate: -71.992004 North_Bounding_Coordinate: 41.270997 South_Bounding_Coordinate: 41.188000 Keywords: Theme: Theme_Keyword_Thesaurus: General Theme_Keyword: U.S. Geological Survey Theme_Keyword: USGS Theme_Keyword: Woods Hole Science Center Theme_Keyword: multibeam bathymetry Theme_Keyword: bathymetry Theme_Keyword: Coastal and Marine Geology Program Theme_Keyword: CMGP Theme_Keyword: WHSC Theme_Keyword: Simrad EM1002 Theme_Keyword: Reson 8125 Theme_Keyword: Reson 8101 Theme_Keyword: NOAA Survey H11250 Theme_Keyword: H11250 Theme_Keyword: National Oceanic and Atmospheric Administration Theme_Keyword: NOAA Theme_Keyword: GeoTIFF Theme_Keyword: Open-File Report 2007-1012 Theme_Keyword: OFR2007-1012 Theme_Keyword: NOAA Project Identifier OPR-B370-TJ Theme_Keyword: color-encoded shaded-relief image Theme_Keyword: Connecticut Department of Environmental Protection Theme_Keyword: CTDEP Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: oceans and estuaries Theme_Keyword: oceans and coastal Theme_Keyword: elevation Theme_Keyword: imageryBaseMapsEarthCover Place: Place_Keyword: Connecticut Place_Keyword: New York Place_Keyword: Long Island Sound Place_Keyword: U.S. East Coast Place_Keyword: United States Place_Keyword: North America Place_Keyword: Atlantic Ocean Place_Keyword: The Race Place_Keyword: Block Island Sound 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) and the Connecticut Department of Environmental Protection as the originators of this data set. Point_of_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 Browse_Graphic: Browse_Graphic_File_Name: http://pubs.usgs.gov/of/2007/1012/data/bathy/geotifs/geo/h11250_geo_2mmbes.gif Browse_Graphic_File_Description: Thumbnail image showing the color hill-shaded GeoTIFF of the 2-m bathymetry from NOAA survey H11250 in geographic. Browse_Graphic_File_Type: GIF Data_Set_Credit: Source data were acquired during National Oceanic and Atmospheric Administration (NOAA) survey H11250. Please acknowledge NOAA as the originator of the dataset from which this dataset was derived. Native_Data_Set_Environment: Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.1.0.780 Cross_Reference: Citation_Information: Originator: L.J. Poppe Originator: M.L. DiGiacomo-Cohen Originator: S.M. Smith Originator: H.F. Stewart Originator: N.A. Forfinski Publication_Date: 2006 Title: Seafloor character and sedimentary processes in eastern Long Island Sound and Western Block Island Sound Series_Information: Series_Name: Geo-Marine Letters Issue_Identification: v. 26, p. 59-68 Data_Quality_Information: Attribute_Accuracy: Completeness_Report: All collected data were processed and used to produce this dataset. The area is considered complete; the gaps in the data lie in areas inaccessible to the survey vessels (shallow water surrounding islands). Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Navigation was by differential GPS Lineage: Source_Information: Type_of_Source_Media: DVD-ROM Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2003 Source_Currentness_Reference: ground condition Source_Contribution: The original multibeam bathymetric data acquired with Simrad EM1002, Reson 8101, and 8125 echosounder systems during NOAA cruise H11250 aboard the NOAA ship Thomas Jefferson. Process_Step: Process_Description: The multibeam bathymetric data presented herein were collected during October 2003 over a roughly 91 km2 area as part of charting applications aboard the NOAA Survey Vessel Thomas Jefferson. A Simrad EM1002 multibeam system mounted on the hull of this vessel was used to acquire over 560 km of survey lines from the deeper water (>20 m) parts of the study area. Two 29-foot launches with hull-mounted Reson systems were deployed from the ship and were used to acquire an additional 637 km of survey lines from the shallower areas. Horizontal resolution of the data varies with water depth, but averages 2 m. Vertical resolution is about 0.5% of the water depth. Source_Used_Citation_Abbreviation: raw bathymetric data Source_Produced_Citation_Abbreviation: b370_h11250_dtm2m.gutm Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Shep Smith Contact_Organization: National Oceanic and Atmospheric Admnistration Contact_Position: Field Operations Officer Contact_Address: Address_Type: mailing and physical address Address: 439 West York Street City: Norfolk State_or_Province: VA Postal_Code: 23510 Country: USA Contact_Voice_Telephone: 757-441-6726 Contact_Electronic_Mail_Address: shep.smith@noaa.gov Process_Step: Process_Description: The .gutm file was converted to ASCIIgrid format. Source_Used_Citation_Abbreviation: b370_h11250_dtm2m.gutm Process_Date: 2004 Source_Produced_Citation_Abbreviation: b370_03.asc Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Chris Polloni Contact_Organization: U.S. Geological Survey Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Road City: Woods Hole State_or_Province: MA Postal_Code: 02543 Contact_Voice_Telephone: 508-548-8700 x2280 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: cpolloni@usgs.gov Process_Step: Process_Description: The ASCIIgrid was converted to ArcGIS GRID format, and then renamed. Source_Used_Citation_Abbreviation: b370_03.asc Process_Date: 2004 Source_Produced_Citation_Abbreviation: B370_03 Source_Produced_Citation_Abbreviation: H11250U Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Mary DiGiacomo-Cohen Contact_Organization: U.S. Geological Survey Contact_Position: Geologist/GIS Analyst Contact_Address: Address_Type: mailing and physical address Address: Long Island Sound Resource Center Address: 1080 Shennecossett Road City: Groton State_or_Province: CT Postal_Code: 06340 Country: USA Contact_Voice_Telephone: 860-405-9210 Contact_Electronic_Mail_Address: mdicohen@usgs.gov Contact_Electronic_Mail_Address: lisrc@uconnvm.uconn.edu Process_Step: Process_Description: Grid was projected to geographic coordinates using a bilinear interpolation. The resulting grid was then clipped to remove some of the excess area of 'no data' surrounding the bathymetric grid. Source_Used_Citation_Abbreviation: H11250U Process_Date: 2006 Source_Produced_Citation_Abbreviation: H11250G Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Mary DiGiacomo-Cohen Contact_Organization: U.S. Geological Survey Contact_Address: Address: Long Island Sound Resource Center Address: 1080 Shennecossett Road City: Groton State_or_Province: CT Postal_Code: 06340 Contact_Voice_Telephone: 860-405-9210 Contact_Electronic_Mail_Address: mdicohen@usgs.gov Contact_Electronic_Mail_Address: lisrc@uconnvm.uconn.edu Process_Step: Process_Description: The grid was hill-shaded (sun-illuminated) with the sun at an azimuth of 315, altitude angle above the horizon of 30, a verticle exaggeration of ~10x (z factor .000104635), a 40 % transparency overlying the grid displayed with a continous color pallete and no linear stretch, and exported as a GeoTIFF image. Source_Used_Citation_Abbreviation: H11250G Process_Date: 2006 Source_Produced_Citation_Abbreviation: h11250_geo_2mmbes.tif Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Mary DiGiacomo-Cohen Contact_Organization: U.S. Geological Survey Contact_Position: Geologist/GIS Analyst Contact_Address: Address: Long Island Sound Resource Center Address: 1080 Shennecossett Road City: Groton State_or_Province: CT Postal_Code: 06340 Contact_Voice_Telephone: 508-405-9210 Contact_Electronic_Mail_Address: mdicohen@usgs.gov Contact_Electronic_Mail_Address: lisrc@uconnvm.uconn.edu Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Raster Raster_Object_Information: Raster_Object_Type: Pixel Row_Count: 4069 Column_Count: 7739 Vertical_Count: 1 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.000001 Longitude_Resolution: 0.000001 Geographic_Coordinate_Units: Decimal degrees Planar: Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: row and column Coordinate_Representation: Abscissa_Resolution: 0.000021 Ordinate_Resolution: 0.000021 Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1983 Ellipsoid_Name: WGS84 Semi-major_Axis: 6378137.0000 Denominator_of_Flattening_Ratio: 298.257222 Vertical_Coordinate_System_Definition: Depth_System_Definition: Entity_and_Attribute_Information: Overview_Description: Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Larry Poppe Contact_Position: Geologist Contact_Address: Address: 384 Woods Hole Road City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 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 U.S. Geological Survey (USGS), National Oceanic and Atmospheric Administration (NOAA), and the Connecticut Department of Environmental Protection (CTDEP), no warranty, expressed or implied, is made by the USGS, NOAA, and the Connecticut DEP 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 these agencies 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: TIFF Format_Specification: GeoTIFF Format_Information_Content: A zip archive containing the GeoTIFF image, associated world file, browse graphic and metadata. File_Decompression_Technique: zip archive Transfer_Size: 0.000 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/of/2007/1012/data/bathy/geotifs/geo/h11250_geo_2mmbes.zip Network_Resource_Name: http://pubs.usgs.gov/of/2007/1012/data/bathy/geotifs/geo/ Network_Resource_Name: http://pubs.usgs.gov/of/2007/1012/html/catalog.html Access_Instructions: Data are downloadable via the World Wids 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 image is available as a GeoTIFF image with an accompanying world file. To utilize this data, the user must have an image viewer, image processing or GIS software package capable of importing a GeoTIFF image. Available_Time_Period: Time_Period_Information: Single_Date/Time: Calendar_Date: 2007 Metadata_Reference_Information: Metadata_Date: 20070423 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: 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