Identification_Information: Citation: Citation_Information: Originator: National Oceanic and Atmospheric Administration Originator: U.S. Geological Survey Publication_Date: 2013 Title: H12013_INTGEO: Combined 2-m and Interpolated 10-m Bathymetric Grid of National Oceanic and Atmospheric Administration (NOAA) Survey H12013 Off the Entrance to the Connecticut River in Northeastern Long Island Sound (Geographic, WGS-84) Edition: 1.0 Geospatial_Data_Presentation_Form: raster digital data Series_Information: Series_Name: Open-File Report Issue_Identification: 2012-1103 Publication_Information: Publication_Place: Woods Hole Coastal and Marine Science Center, Woods Hole, MA Publisher: U.S. Geological Survey, Coastal and Marine Geology Program Online_Linkage: \\IGSAGIEGWSLPO70\K$\lisound\H12013\ofr2012-1103\data\bathy\grids\geo_interp\h12013_intgeo Online_Linkage: \\IGSAGIEGWSLPO70\K$\lisound\H12013\ofr2012-1103\data\bathy\grids\geo_interp\h12013_intgeo Larger_Work_Citation: Citation_Information: Originator: L.J. Poppe Originator: K.Y. McMullen Originator: S.D. Ackerman Originator: M.R. Guberski Originator: D.A. Wood Publication_Date: 2013 Title: Sea-floor character and geology off the entrance to the Connecticut River, northeastern Long Island Sound Edition: 1.0 Series_Information: Series_Name: Open-File Report Issue_Identification: 2012-1103 Publication_Information: Publication_Place: Woods Hole Coastal and Marine 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/2012/1103/ Description: Abstract: The U.S. Geological Survey (USGS), in cooperation with the National Oceanic and Atmospheric Administration (NOAA) and the Connecticut Department of Energy and Environmental Protection (CT DEEP), is producing detailed geologic maps of the coastal sea floor. Bathymetry and sidescan-sonar imagery, originally collected by NOAA for charting purposes, provide a fundamental framework for research and management activities in Long Island Sound, shows the composition and terrain of the seabed, and provides information on sediment transport and benthic habitat. During April-May 2009 NOAA completed hydrographic survey H12013 offshore of the entrance to the Connecticut River, and during November 2009 and April 2010 bottom photographs and surficial sediment data were acquired as part of two ground-truth reconnaissance surveys of this area. Two interpretive data layers were derived from the multibeam echo-sounder and the ground-truth data used to verify them. For more information on the ground-truth surveys see: http://woodshole.er.usgs.gov/operations/ia/public_ds_info.php?fa=2009-059-FA and http://woodshole.er.usgs.gov/operations/ia/public_ds_info.php?fa=2010-010-FA Purpose: To release a combined 2-m and interpolated 10-m grid of the multibeam bathymetry generated during NOAA survey H12013 off the entrance to the Connecticut River in northeastern Long Island Sound in a geographic WGS84 coordinate system. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20090419 Ending_Date: 20090517 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -72.345648 East_Bounding_Coordinate: -72.236465 North_Bounding_Coordinate: 41.302825 South_Bounding_Coordinate: 41.227151 Keywords: Theme: Theme_Keyword_Thesaurus: General Theme_Keyword: U.S. Geological Survey Theme_Keyword: USGS Theme_Keyword: Woods Hole Coastal and Marine Science Center Theme_Keyword: multibeam bathymetry Theme_Keyword: Coastal and Marine Geology Program Theme_Keyword: CMGP Theme_Keyword: WHCMSC Theme_Keyword: NOAA survey H12013 Theme_Keyword: H12013 Theme_Keyword: National Oceanic and Atmospheric Administration Theme_Keyword: NOAA Theme_Keyword: grid Theme_Keyword: Open-File Report 2012-1103 Theme_Keyword: ArcRaster grid Theme_Keyword: OFR 2012-1103 Theme_Keyword: RESON 7125 Theme_Keyword: bathymetry Theme_Keyword: Connecticut Department of Energy and Environmental Protection Theme_Keyword: CT DEEP Theme_Keyword: NOAA Ship Thomas Jefferson Theme_Keyword: RESON 8125 Theme_Keyword: interpolated Theme_Keyword: interpolated grid Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: oceans and estuaries Theme_Keyword: oceans and coastal Theme_Keyword: elevation Theme_Keyword: oceans Place: Place_Keyword_Thesaurus: General Place_Keyword: Connecticut Place_Keyword: U.S. East Coast Place_Keyword: United States Place_Keyword: North America Place_Keyword: Atlantic Ocean Place_Keyword: Long Island Sound Place_Keyword: Old Lyme Place_Keyword: Old Saybrook Place_Keyword: Lynde Point Place_Keyword: Griswold Point Place_Keyword: Long Sand Shoal Place_Keyword: Connecticut River Place_Keyword: Hatchett Point Place_Keyword: Hatchett Reef Access_Constraints: None Use_Constraints: Data are not to be used for navigation purposes. Public domain data are freely redistributable with proper metadata and source attribution. Please recognize the National Oceanic and Atmospheric Administration (NOAA) and U.S. Geological Survey (USGS) as the originators of this information. 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: 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/2012/1103/data/bathy/grids/geo_interp/h12013_intgeo.gif Browse_Graphic_File_Description: Thumbnail image showing the interpolated grid of the multibeam bathymetry generated during NOAA survey H12013 off the entrance to the Connecticut River in northeastern Long Island Sound in a geographic WGS84 coordinate system. Browse_Graphic_File_Type: GIF Native_Data_Set_Environment: Microsoft Windows Vista Version 6.1 (Build 7601) Service Pack 1; ESRI ArcCatalog 9.3.1.1850 Cross_Reference: Citation_Information: Originator: P. Tod Schattgen Publication_Date: 2008 Title: H12013 Edition: 1.0 Geospatial_Data_Presentation_Form: document Series_Information: Series_Name: Descriptive Report Issue_Identification: H12013 Publication_Information: Publication_Place: Atlantic Hydrographic Branch, Norfolk, VA Publisher: National Ocean Survey, National Oceanic and Atmospheric Administration Online_Linkage: http://surveys.ngdc.noaa.gov/mgg/NOS/coast/H12001-H14000/H12013/DR/H12013.pdf Cross_Reference: Citation_Information: Originator: Poppe, L.J. Originator: DiGiacomo-Cohen, M.L. Originator: Doran, E.F. Originator: Smith, S.M. Originator: Stewart, H.F. Originator: Forfinski, N.A. 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 Geospatial_Data_Presentation_Form: GIS data release Series_Information: Series_Name: Open-File Report Issue_Identification: 2007-1012 Publication_Information: Publication_Place: Woods Hole Coastal and Marine Science Center, Woods Hole, MA Publisher: U.S. Geological Survey, Coastal and Marine Geology Program Online_Linkage: http://pubs.usgs.gov/of/2007/1012/ Cross_Reference: Citation_Information: Originator: Poppe, L.J. Originator: Denny, J.F. Originator: Williams, S.J. Originator: Moser, M.S. Originator: Forfinski, N.A. Originator: Stewart, H.F. Originator: Doran, E.F. Publication_Date: 2007 Title: The geology of Six Mile Reef, eastern Long Island Sound Edition: 1.0 Geospatial_Data_Presentation_Form: GIS data release Series_Information: Series_Name: Open-File Report Issue_Identification: 2007-1191 Publication_Information: Publication_Place: Woods Hole Coastal and Marine Science Center, Woods Hole, MA Publisher: U.S. Geological Survey, Coastal and Marine Geology Program Online_Linkage: http://pubs.usgs.gov/of/2007/1191/ Cross_Reference: Citation_Information: Originator: McMullen, K.Y. Originator: Poppe, L.J. Originator: Danforth, W.W. Originator: Blackwood, D.S. Originator: Schaer, J.D. Originator: Ostapenko, A.J. Originator: Glomb, K.A. Originator: Doran, E.F. Publication_Date: 2010 Title: Surficial geology of the sea floor in Long Island Sound offshore of Plum Island, New York Edition: 1.0 Geospatial_Data_Presentation_Form: GIS data release Series_Information: Series_Name: Open-File Report Issue_Identification: 2010-1005 Publication_Information: Publication_Place: Woods Hole Coastal and Marine Science Center, Woods Hole, MA Publisher: U.S. Geological Survey, Coastal and Marine Geology Program Online_Linkage: http://pubs.usgs.gov/of/2010/1005/ Cross_Reference: Citation_Information: Originator: Poppe, L.J. Originator: McMullen, K.Y. Originator: Ackerman, D.S. Originator: Blackwood, D.S. Originator: Irwin, B.J. Originator: Schaer, J.D. Originator: Lewit, P.G. Originator: Doran, E.F. Publication_Date: 2010 Title: Sea-floor Geology and Character Offshore of Rocky Point, New York Edition: 1.0 Series_Information: Series_Name: Open-File Report Issue_Identification: 2010-1007 Publication_Information: Publication_Place: Woods Hole Coastal and Marine 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/2010/1007/ Cross_Reference: Citation_Information: Originator: McMullen, K.Y. Originator: Poppe, L.J. Originator: Danforth, W.W. Originator: Blackwood, D.S. Originator: Schaer, J.D. Originator: Guberski, M.R. Originator: Wood, D.A. Originator: Doran, E.F. Publication_Date: 2011 Title: Surficial geology of the sea floor in Long Island Sound offshore of Orient Point, New York Edition: 1.0 Series_Information: Series_Name: Open-File Report Issue_Identification: 2010-1100 Publication_Information: Publication_Place: Woods Hole Coastal and Marine 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/2010/1100/ Cross_Reference: Citation_Information: Originator: L.J. Poppe Originator: K.Y. McMullen Originator: S.D. Ackerman Originator: D.S. Blackwood Originator: J.D. Schaer Originator: M.R. Forrest Originator: A.J. Ostapenko Originator: E.F. Doran Publication_Date: 2011 Title: Sea-Floor Geology and Topography Offshore in Eastern Long Island Sound Edition: 1.0 Geospatial_Data_Presentation_Form: GIS data report Series_Information: Series_Name: Open-File Report Issue_Identification: 2010-1150 Publication_Information: Publication_Place: Woods Hole Coastal and Marine 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/2010/1150/ Cross_Reference: Citation_Information: Originator: McMullen, K.Y. Originator: Poppe, L.J. Originator: Danforth, W.W. Originator: Blackwood, D.S. Originator: Schaer, J.D. Originator: Glomb, K.A. Originator: Doran, E.F. Publication_Date: 2012 Title: Sea-floor geology of Long Island Sound north of Duck Pond Point, New York Edition: 1.0 Geospatial_Data_Presentation_Form: GIS data report Series_Information: Series_Name: Open-File Report Issue_Identification: 2011-1149 Publication_Information: Publication_Place: Woods Hole Coastal and Marine 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/2011/1149/ Data_Quality_Information: Logical_Consistency_Report: No additional checks for consistency were performed on this data. Completeness_Report: All collected data were processed and used to produce this dataset. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Horizontal positions of the ship and launches acquiring multibeam bathymetry were determined with Trimble DSM212L DGPS receivers. Best expected position accuracy of the surface vessels with the Trimble system less than 1 meter. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: Attitude of the vessel (e.g. pitch, roll, and heave) acquiring multibeam bathymetry was monitored by an Applanix TSS POS/MV 320 Version 3 GPS aided navigation system. The vertical accuracy of the original bathymetry data is approximately 0.5% of the water depth, however, this accuracy is somewhat less in areas where the data is interpolated. Tidal zone corrections were calculated from the tide stations at New London and New Haven, Connecticut. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: National Ocean Survey, National Oceanic and Atmospheric Administration Publication_Date: Unpublished Material Title: H12013 bathymetry Geospatial_Data_Presentation_Form: raster digital data Type_of_Source_Media: disc Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20090419 Ending_Date: 20090517 Source_Currentness_Reference: ground condition Source_Contribution: Original processed multibeam bathymetric data. Process_Step: Process_Description: Two 8.5-m aluminum Jensen launches and the NOAA Ship Thomas Jefferson were used to acquire the multibeam echosounder (MBES) bathymetric data for survey H12013 during April-May 2009 off the entrance to the Connecticut River, northeastern Long Island Sound. The MBES data on launch 3101 were collected with a hull-mounted RESON SeaBat 455-kHz 8125 shallow-water system. This system measures two-way sound travel time across a 120-degree swath. The SeaBat 8125 has 240 beams with a cross-track beam width of 0.5 degrees at nadir. The MBES data were collected aboard the ship and launch 3102 with RESON 7125 systems which measured two-way sound travel time across a 140-degree swath. Original horizontal resolution of the MBES data was 0.5 m for depths less than 20 m and 1 m for the deeper areas. Vertical resolution of the MBES data is about 0.5% of the water depth. The bathymetric data were acquired and logged with HYPACK Hysweep and processed by NOAA using CARIS HIPS (Hydrographic Image Processing System) software for quality control, to incorporate sound velocity and tidal corrections, and to produce the continuous digital terrain model. All positioning and attitude were determined with Trimble DSM212L DGPS receivers and Applanix POS/MV Model 320 v.4 inertial navigation systems; HYPACK 2009 was used for acquisition line navigation. Sound velocity corrections were derived using frequent SEACAT CTD (conductivity-temperature-depth) profiles. Typically, a CTD cast was conducted every three to four hours of MBES acquisition. Tidal zone corrections were calculated from the tide stations at New London and New Haven, Connecticut. Vertical datum is mean lower low water. Individuals interested in detail descriptions of the MBES acquisition and processing should consult the Descriptive and Data Acquisition and Processing reports. The combined BASE-surface data were gridded to 2-m resolution and saved as a CARIS HIPS/SIPS v6.1 SP2 database in UTM Zone 18, NAD83. Process_Date: 2009 Source_Produced_Citation_Abbreviation: H12013 CARIS HIPS database Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: National Oceanic and Atmospheric Administration Contact_Person: Jasper Schaer Contact_Position: Field Operations Officer Contact_Address: Address_Type: mailing address Address: 439 West York Street City: Norfolk State_or_Province: VA Postal_Code: 23510 Country: USA Contact_Voice_Telephone: 757-441-6746 Contact_Electronic_Mail_Address: jasper.schaer@noaa.gov Process_Step: Process_Description: Opened the 2-m fieldsheet provided by NOAA NOS (H12013_Mosaic_Complete.fsh) and a new fieldsheet H12013_sda.fsh. Ran the "Combine base surface" process to create a 10m resolution base surface (10m_combined.csar) from the 2m base surface H12013_2mCombined.csar. Ran 1 iteration of interpolation on the 10m base surface to fill the gaps and create a 100% coverage base surface (10m_combined_Interp.csar). Exported to Bathymetric Attributed Grid (BAG) file (10m_combined_Interp.bag) Source_Used_Citation_Abbreviation: H12013 CARIS HIPS database Process_Date: 2012 Source_Produced_Citation_Abbreviation: 10m_combined_Interp.bag Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Seth Ackerman Contact_Organization: U.S. Geological Survey Contact_Position: GIS Specialist Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Road City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Contact_Voice_Telephone: 508-548-8700 x2315 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: sackerman@usgs.gov Process_Step: Process_Description: Imported the BAG file (10m_combined_Interp.bag) to an IVS Fledermaus SD file (10m_combined_Interp.sd) using DMagic v.7.2. Imported SD files H12013_2m_combined.sd (created while producing the 2-m UTM grid released elsewhere in this report) and 10m_combined_Interp.sd into DMagic v.6.7 (this version used because of a bug in current version whereby the surfacemerge process is broken) and created DTM files (H12013_2m_combined.dtm and 10m_combined_Interp.dtm) Source_Used_Citation_Abbreviation: 10m_combined_Interp.bag Source_Used_Citation_Abbreviation: H12013_2m_combined.sd Process_Date: 2012 Source_Produced_Citation_Abbreviation: 10m_combined_Interp.sd Source_Produced_Citation_Abbreviation: H12013_2m_combined.asc Source_Produced_Citation_Abbreviation: H12013_2m_combined.dtm Source_Produced_Citation_Abbreviation: 10m_combined_Interp.dtm Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Seth Ackerman Contact_Organization: U.S. Geological Survey Contact_Position: GIS Specialist Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Road City: Woods Hole State_or_Province: MA Postal_Code: 02543 Country: USA Contact_Voice_Telephone: 508-548-8700 x2315 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: sackerman@usgs.gov Process_Step: Process_Description: Ran the process dtmmerge to combine the DTM files (H12013_2m_combined.dtm and 10m_combined_Interp.dtm), creating the DTM file outtemp67.dtm using the IVS v.6.7 FMCommand (dtmmerge -in H12013_2m_combined.dtm 10m_combined_Interp.dtm -out outtemp67.dtm -cellsize 2 -mode highres) This was done to create a merged DTM that would essentially preserve the 2 meter resolution where it exists, and fill the gaps with data from the interpolated 10 meter grid. The input order doesn't matter because the command specified "-mode highres" which gives priority to the higher resolution input dataset. Source_Used_Citation_Abbreviation: H12013_2m_combined.dtm Source_Used_Citation_Abbreviation: 10m_combined_Interp.dtm Process_Date: 2012 Source_Produced_Citation_Abbreviation: outtemp67.dtm Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Seth Ackerman Contact_Organization: U.S. Geological Survey Contact_Position: GIS Specialist Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Raod City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Contact_Voice_Telephone: 508-548-8700 x2315 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: sackerman@usgs.gov Process_Step: Process_Description: Using IVS Fledermaus DMagic v.7.2, imported output of the dtmmerge process (outtemp67.dtm) to a SD file (outtemp67.sd) and exported the SD surface to an ArcView Grid (2m_interp.asc) This is done to convert the new merged DTM into an SD file, so that it could be then converted to an ArcView grid. Source_Used_Citation_Abbreviation: outtemp67.dtm Process_Date: 2012 Source_Produced_Citation_Abbreviation: outtemp67.sd Source_Produced_Citation_Abbreviation: 2m_interp.asc Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Seth Ackerman Contact_Organization: U.S. Geological Survey Contact_Position: GIS Specialist Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Road City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Contact_Voice_Telephone: 508-548-8700 x2315 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: sackerman@usgs.gov Process_Step: Process_Description: Using ArcCatalog v.9.3, converted ArcView Grid (2m_interp.asc) to ESRI 32-bit floating point grid: h12013_intutm (ArcToolbox - Conversion Tools - To Raster - ASCII to Raster) and defined projection for grid h12013_intutm as NAD83 UTM zone 18 (ArcToolbox - Data Management Tools - Projections and Transformations - Projection). The output data type chosen was "float". Source_Used_Citation_Abbreviation: 2m_interp.asc Process_Date: 2012 Source_Produced_Citation_Abbreviation: h12013_intutm Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Seth Ackerman Contact_Organization: U.S. Geological Survey Contact_Position: GIS Specialist Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Road City: Woods Hole State_or_Province: MA Postal_Code: 02543 Country: USA Contact_Voice_Telephone: 508-548-8700 x2315 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: sackerman@usgs.gov Process_Step: Process_Description: Projected the raster grid h12013_intutm to Geographic coordinate system WGS84 datum creating the grid h12013_intgeo using ArcCatalog v.9.3. (ArcToolbox - Data Management Tools - Projections and Transformations - Raster - Project Raster) Parameters used were the default values. Source_Used_Citation_Abbreviation: h12013_intutm Process_Date: 2012 Source_Produced_Citation_Abbreviation: h12013_intgeo Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Seth Ackerman Contact_Organization: U.S. Geological Survey Contact_Position: GIS Specialist Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Road City: Woods Hole State_or_Province: MA Postal_Code: 02543 Country: USA Contact_Voice_Telephone: 508-548-8700 x2315 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: sackerman@usgs.gov Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Raster Raster_Object_Information: Raster_Object_Type: Grid Cell Row_Count: 3541 Column_Count: 5109 Vertical_Count: 1 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.000019 Longitude_Resolution: 0.000025 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 Vertical_Coordinate_System_Definition: Depth_System_Definition: Depth_Datum_Name: Mean lower low water Depth_Resolution: 0.1 Depth_Distance_Units: meters Depth_Encoding_Method: Explicit depth coordinate included with horizontal coordinates Entity_and_Attribute_Information: Overview_Description: Entity_and_Attribute_Overview: An interpolated grid of the multibeam bathymetry generated during NOAA survey H12013 off the entrance to the Connecticut River in northeastern Long Island Sound in a geographic WGS84 coordinate system. A continuous-coverage perspective is generated by superimposing a 2-m grid over a 10-m interpolated grid, subtracting the areas of overlap from the 10-m interpolated grid, and combining these two datasets so that the gaps in the 2-m grid are filled in by 10-m interpolated data. Anomalies present in this dataset (i.e. areas of decreased vertical resolution and accuracy) are a product of the interpolation. Distribution_Information: Distributor: 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 Resource_Description: Downloadable Data Distribution_Liability: Neither the U.S. Government, the Department of the Interior, nor the USGS, nor the National Oceanic and Atmospheric Administration (NOAA), nor the Connecticut Department of Energy and Environmental Protection (CT DEEP) nor any of their employees, contractors, or subcontractors, make any warranty, express or implied, nor assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, nor represent that its use would not infringe on privately owned rights. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS, NOAA, or the CT DEEP 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: ARCG Format_Specification: ESRI ArcRaster Grid Format_Information_Content: One file (h12013_intgeo.zip) containing the ArcGIS grid file components, browse graphic and metadata. File_Decompression_Technique: zip archive Transfer_Size: 7.3 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/of/2012/1103/data/bathy/grids/geo_interp/h12013_intgeo.zip Network_Resource_Name: http://pubs.usgs.gov/of/2012/1103/html/catalog.html Access_Instructions: Data are downloadable via the World Wide Web (WWW). Offline_Option: Offline_Media: DVD-ROM Recording_Capacity: Recording_Density: 4.75 Recording_Density_Units: Mbytes Recording_Format: UDF Fees: None Technical_Prerequisites: The user must have a program capable of reading the ESRI grid data format. The user must have software capable of uncompressing archived zip files, such as WinZip or Pkware. The directory structure as it appears in the WinZip file must be maintained or else the binary grid is unusable. Available_Time_Period: Time_Period_Information: Single_Date/Time: Calendar_Date: 2013 Metadata_Reference_Information: Metadata_Date: 20120823 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 Metadata_Extensions: Online_Linkage: http://www.esri.com/metadata/esriprof80.html Profile_Name: ESRI Metadata Profile