4-m Grid of the Combined Multibeam and LIDAR Bathymetry Generated from National Oceanic and Atmospheric Administration (NOAA) Surveys H11224, H11225, H11250, H11251, H11252, H11361, H11441, H11442, H11445, H11446, H11997, H11999, H12012, and H12013 Offshore in Eastern Long Island Sound and Westernmost Block Island Sound (ELISCOMB_GEO, Geographic, WGS84)

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Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: National Oceanic and Atmospheric Administration
Originator: U.S. Geological Survey
Publication_Date: 2011
Title:
4-m Grid of the Combined Multibeam and LIDAR Bathymetry Generated from National Oceanic and Atmospheric Administration (NOAA) Surveys H11224, H11225, H11250, H11251, H11252, H11361, H11441, H11442, H11445, H11446, H11997, H11999, H12012, and H12013 Offshore in Eastern Long Island Sound and Westernmost Block Island Sound (ELISCOMB_GEO, Geographic, WGS84)
Edition: 1.0
Geospatial_Data_Presentation_Form: raster digital data
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 2011-1003
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: https://doi.org/10.3133/ofr20111003
Online_Linkage: https://pubs.usgs.gov/of/2011/1003/html/catalog.html
Online_Linkage: Larger_Work_Citation:
Citation_Information:
Originator: L.J. Poppe
Originator: W.W. Danforth
Originator: K.Y. McMullen
Originator: C.E. Parker
Originator: E.F. Doran
Publication_Date: 2011
Title:
Combined Multibeam and LIDAR Bathymetry Data from Eastern Long Island Sound and Westernmost Block Island Sound - A Regional Perspective
Edition: 1.0
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 2011-1003
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Other_Citation_Details: 1 DVD-ROM
Online_Linkage: https://pubs.usgs.gov/of/2011/1003/
Description:
Abstract:
The USGS, in cooperation with NOAA and the Connecticut DEP, is producing detailed maps of the seafloor in Long Island Sound. The current phase of this cooperative research program is directed toward analyzing how bathymetric relief relates to the distribution of sedimentary environments and benthic communities. As part of this program, digital terrain models (DTMs) from bathymetry collected as part of NOAA's hydrographic charting activities are converted into ESRI raster grids and imagery (primarily of 2-m resolution), verified with bottom sampling and photography, and used to produce interpretations of seabed geology and hydrodynamic processes. Although each of the 18 completed surveys, ranging in area from 12 to 293 square kilometers, individually provides important benthic environmental information, many applications require a geographically broader perspective. For example, the usefulness of individual surveys is limited for the planning and construction of cross-Sound infrastructure, such as cables and pipelines, or for the testing of regional circulation models. To address this need, we integrated 12 multibeam and 2 LIDAR (Light Detection and Ranging) contiguous bathymetric DTMs into one dataset that covers much of eastern Long Island Sound. The new dataset is adjusted to mean lower low water, is provided in UTM Zone 18 NAD83 and geographic WGS84 projections, and is gridded to 4-m resolution. This resolution is adequate for seafloor-feature and process interpretation, but small enough to be queried and manipulated with standard GIS programs and to allow for future growth. Natural features visible in the grid include exposed bedrock outcrops, boulder lag deposits of submerged moraines, sand-wave fields, and scour depressions that reflect the strength of the oscillating tidal currents. Bedform asymmetry allows interpretations of net sediment transport. Anthropogenic artifacts visible in the bathymetric data include a dredged channel, shipwrecks, dredge spoils, mooring anchors, prop-scour depressions, buried cables, and bridge footings. Together the merged data reveal a larger, more continuous perspective of bathymetric topography than previously available, providing a fundamental framework for research and resource management activities in this major east-coast estuary.
Purpose:
To release a 4-m grid of the combined multibeam and LIDAR bathymetry generated from NOAA surveys H11224, H11225, H11250, H11251, H11252, H11361, H11441, H11442, H11445, H11446, H11997, H11999, H12012, and H12013 offshore in eastern Long Island Sound and westernmost Block Island Sound in geographic, WGS84 coordinates.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20031006
Ending_Date: 20090517
Currentness_Reference:
ground condition (See the source citation in the lineage section for individual component's specific dates.)
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -72.666572
East_Bounding_Coordinate: -71.975086
North_Bounding_Coordinate: 41.391500
South_Bounding_Coordinate: 41.079364
Keywords:
Theme:
Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:5da2d47a-cfb9-46b9-921c-903f53c8ecf7
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: USGS
Theme_Keyword: USGS Woods Hole Coastal and Marine Science Center
Theme_Keyword: multibeam bathymetry
Theme_Keyword: LIDAR
Theme_Keyword: Coastal and Marine Geology Program
Theme_Keyword: CMGP
Theme_Keyword: WHCMSC
Theme_Keyword: NOAA survey H11441
Theme_Keyword: NOAA survey H11224
Theme_Keyword: National Oceanic and Atmospheric Administration
Theme_Keyword: NOAA
Theme_Keyword: Grid
Theme_Keyword: Open-File Report 2011-1003
Theme_Keyword: OFR 2011-1003
Theme_Keyword: RESON 8125
Theme_Keyword: RESON 8101
Theme_Keyword: H11441
Theme_Keyword: H11224
Theme_Keyword: Connecticut Department of Environmental Protection
Theme_Keyword: CT DEP
Theme_Keyword: bathymetry
Theme_Keyword: NOAA survey H11225
Theme_Keyword: NOAA survey H11442
Theme_Keyword: H11225
Theme_Keyword: H11442
Theme_Keyword: NOAA survey H11250
Theme_Keyword: NOAA survey H11251
Theme_Keyword: NOAA survey H11252
Theme_Keyword: NOAA survey H11361
Theme_Keyword: NOAA survey H11445
Theme_Keyword: NOAA survey H11446
Theme_Keyword: NOAA survey H11997
Theme_Keyword: NOAA survey H11999
Theme_Keyword: NOAA survey H12012
Theme_Keyword: NOAA survey H12013
Theme_Keyword: H11250
Theme_Keyword: H11251
Theme_Keyword: H11252
Theme_Keyword: H11361
Theme_Keyword: H11445
Theme_Keyword: H11446
Theme_Keyword: H11997
Theme_Keyword: H11999
Theme_Keyword: H12012
Theme_Keyword: H12013
Theme_Keyword: RESON 7125
Theme_Keyword: Simrad EM1002
Theme_Keyword: ArcRastar grid
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: elevation
Theme_Keyword: oceans
Theme:
Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: bathymetry
Theme_Keyword: topography
Theme_Keyword: sea-floor characteristics
Theme_Keyword: multibeam sonar
Theme_Keyword: lidar
Theme_Keyword: marine geophysics
Theme_Keyword: geospatial datasets
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: Connecticut
Place_Keyword: New London
Place_Keyword: U.S. East Coast
Place_Keyword: United States
Place_Keyword: North America
Place_Keyword: Atlantic Ocean
Place_Keyword: Fishers Island
Place_Keyword: Groton
Place_Keyword: Avery Point
Place_Keyword: New York
Place_Keyword: Pine Island
Place_Keyword: Niantic
Place_Keyword: Niantic Bay
Place_Keyword: Twotree Island
Place_Keyword: Giants neck
Place_Keyword: Black Point
Place_Keyword: Long Island Sound
Place_Keyword: Fishers Island Sound
Place_Keyword: The Race
Place_Keyword: Orient Point
Place_Keyword: Plum Island
Place_Keyword: Rocky Point
Place_Keyword: Six Mile Reef
Place_Keyword: Long Sand Shoal
Place_Keyword: Old Saybrook
Place_Keyword: Connecticut River
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: Browse_Graphic_File_Description:
Browse image of a 4-m grid of the combined bathymetry from NOAA surveys H11224, H11225, H11250, H11251, H11252, H11361, H11441, H11442, H11445, H11446, H11997, H11999, H12012, and H12013 offshore in eastern Long Island Sound and westernmost Block Island Sound in geographic, WGS84 coordinates.
Browse_Graphic_File_Type: GIF
Native_Data_Set_Environment:
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.2.6.1500
Cross_Reference:
Citation_Information:
Originator: Emily B. Christman
Publication_Date: 2005
Title: H11441
Edition: 1.0
Geospatial_Data_Presentation_Form: document
Series_Information:
Series_Name: Descriptive Report
Issue_Identification: H11441
Publication_Information:
Publication_Place: Atlantic Hydrographic Branch, Norfolk, VA
Publisher:
National Ocean Survey, National Oceanic and Atmospheric Administration
Online_Linkage:
Cross_Reference:
Citation_Information:
Originator: Darren Stephenson
Publication_Date: 2004
Title: H11224
Edition: 1.0
Geospatial_Data_Presentation_Form: document
Series_Information:
Series_Name: Descriptive Report
Issue_Identification: H11224
Publication_Information:
Publication_Place: Atlantic Hydrographic Branch, Norfolk, VA
Publisher:
National Ocean Survey, National Oceanic and Atmospheric Administration
Online_Linkage:
Cross_Reference:
Citation_Information:
Originator: Poppe, L.J.
Originator: Ackerman, S.D.
Originator: Doran, E.F.
Originator: Beaver, A.J.
Originator: Crocker, J.M.
Originator: Schattgen, P.T.
Publication_Date: 2007
Title:
Interpolation of reconnaissance multibeam bathymetry from north-central Long Island Sound
Edition: 1.0
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 2005-1145
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Online_Linkage: https://pubs.usgs.gov/of/2005/1145/
Cross_Reference:
Citation_Information:
Originator: Emily B. Christman
Publication_Date: 2005
Title: H11442
Edition: 1.0
Geospatial_Data_Presentation_Form: document
Series_Information:
Series_Name: Descriptive Report
Issue_Identification: H11442
Publication_Information:
Publication_Place: Atlantic Hydrographic Branch, Norfolk, VA
Publisher:
National Ocean Survey, National Oceanic and Atmospheric Administration
Online_Linkage:
Cross_Reference:
Citation_Information:
Originator: Darren Stephenson
Publication_Date: 2004
Title: H11225
Edition: 1.0
Geospatial_Data_Presentation_Form: document
Series_Information:
Series_Name: Descriptive Report
Issue_Identification: H11225
Publication_Information:
Publication_Place: Atlantic Hydrographic Branch, Norfolk, VA
Publisher:
National Ocean Survey, National Oceanic and Atmospheric Administration
Online_Linkage:
Cross_Reference:
Citation_Information:
Originator: P. Tod Schattgen
Publication_Date: 2008
Title: H11251
Edition: 1.0
Geospatial_Data_Presentation_Form: document
Series_Information:
Series_Name: Descriptive Report
Issue_Identification: H11251
Publication_Information:
Publication_Place: Atlantic Hydrographic Branch, Norfolk, VA
Publisher:
National Ocean Survey, National Oceanic and Atmospheric Administration
Online_Linkage:
Cross_Reference:
Citation_Information:
Originator: Donald W. Haines
Publication_Date: 2003
Title: H11250
Edition: 1.0
Geospatial_Data_Presentation_Form: document
Series_Information:
Series_Name: Descriptive Report
Issue_Identification: H11250
Publication_Information:
Publication_Place: Atlantic Hydrographic Branch, Norfolk, VA
Publisher:
National Ocean Survey, National Oceanic and Atmospheric Administration
Online_Linkage:
Cross_Reference:
Citation_Information:
Originator: Emily B. Christman
Publication_Date: 2004
Title: H11252
Edition: 1.0
Geospatial_Data_Presentation_Form: document
Series_Information:
Series_Name: Descriptive Report
Issue_Identification: H11252
Publication_Information:
Publication_Place: Atlantic Hydrographic Branch, Norfolk, VA
Publisher:
National Ocean Survey, National Oceanic and Atmospheric Administration
Online_Linkage:
Cross_Reference:
Citation_Information:
Originator: Emily B. Christman
Publication_Date: 2004
Title: H11361
Edition: 1.0
Geospatial_Data_Presentation_Form: document
Series_Information:
Series_Name: Descriptive Report
Issue_Identification: H11361
Publication_Information:
Publication_Place: Atlantic Hydrographic Branch, Norfolk, VA
Publisher:
National Ocean Survey, National Oceanic and Atmospheric Administration
Online_Linkage:
Cross_Reference:
Citation_Information:
Originator: P. Tod Schattgen
Publication_Date: 2008
Title: H11445
Edition: 1.0
Geospatial_Data_Presentation_Form: document
Series_Information:
Series_Name: Descriptive Report
Issue_Identification: H11445
Publication_Information:
Publication_Place: Atlantic Hydrographic Branch, Norfolk, VA
Publisher:
National Ocean Survey, National Oceanic and Atmospheric Administration
Online_Linkage:
Cross_Reference:
Citation_Information:
Originator: P. Tod Schattgen
Publication_Date: 2008
Title: H11446
Edition: 1.0
Geospatial_Data_Presentation_Form: document
Series_Information:
Series_Name: Descriptive Report
Issue_Identification: H11446
Publication_Information:
Publication_Place: Atlantic Hydrographic Branch, Norfolk, VA
Publisher:
National Ocean Survey, National Oceanic and Atmospheric Administration
Online_Linkage:
Cross_Reference:
Citation_Information:
Originator: P. Tod Schattgen
Publication_Date: 2008
Title: H11997
Edition: 1.0
Geospatial_Data_Presentation_Form: document
Series_Information:
Series_Name: Descriptive Report
Issue_Identification: H11997
Publication_Information:
Publication_Place: Atlantic Hydrographic Branch, Norfolk, VA
Publisher:
National Ocean Survey, National Oceanic and Atmospheric Administration
Online_Linkage:
Cross_Reference:
Citation_Information:
Originator: P. Tod Schattgen
Publication_Date: 2008
Title: H11999
Edition: 1.0
Geospatial_Data_Presentation_Form: document
Series_Information:
Series_Name: H11999
Issue_Identification: Descriptive Report
Publication_Information:
Publication_Place: Atlantic Hydrographic Branch, Norfolk, VA
Publisher:
National Ocean Survey, National Oceanic and Atmospheric Administration
Online_Linkage:
Cross_Reference:
Citation_Information:
Originator: P. Tod Schattgen
Publication_Date: 2009
Title: H12012
Edition: 1.0
Geospatial_Data_Presentation_Form: document
Series_Information:
Series_Name: Descriptive Report
Issue_Identification: H12012
Publication_Information:
Publication_Place: Atlantic Hydrographic Branch, Norfolk, VA
Publisher:
National Ocean Survey, National Oceanic and Atmospheric Administration
Online_Linkage:
Cross_Reference:
Citation_Information:
Originator: P. Tod Schattgen
Publication_Date: 2009
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:
Cross_Reference:
Citation_Information:
Originator: Poppe, L.J.
Originator: Danforth, W.W.
Originator: McMullen, K.Y.
Originator: Parker, C.E.
Originator: Lewit, P.G.
Originator: Doran, E.F.
Publication_Date: 2010
Title:
Integrated multibeam and LIDAR bathymetry data offshore of New London and Niantic, Connecticut
Edition: 1.0
Geospatial_Data_Presentation_Form: GIS data report
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 2009-1231
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Other_Citation_Details: 1 CD-ROM
Online_Linkage: https://pubs.usgs.gov/of/2009/1231/
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 position of the launches acquiring multibeam bathymetry were determined using GPS corrected by U.S. Coast Guard differential GPS beacon stations at Moriches, NY, Sandy Hook, NJ, and Acushnet, MA. Real-time positioning during LIDAR acquisition was obtained by an Ashtech GG24 GPS receiver combined with Thales GeoSolutions Wide Area DGPS. Original horizontal resolution of the MBES data was 0.5 - 2 m; original cell size of the gridded LIDAR data was primarily 4 m. The final CARIS combined base surfaces for the MBES data were produced at a 2-m cell size; final cell size of the gridded LIDAR data was 4 m.
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report:
Attitude of the launches (e.g. pitch, roll, and heave) acquiring multibeam bathymetry were monitored by an Applanix TSS POS/MV 320 Version 3 GPS aided navigation system. Real-time positioning during LIDAR acquisition was obtained by an Ashtech GG24 GPS receiver combined with Thales GeoSolutions Wide Area DGPS. Ashtech Z12 GPS receivers, provided as part of the Airborne System and Ground Systems, also logged GPS data on the aircraft and at a locally established base station to provide post processed KGPS position solutions. Received infrared laser energy, supplemented by an Altitude Heading Reference System (AHRS) inertial height reference and kinematic GPS, determined the height of the aircraft. Verified water levels are based on NWLON stations 8461490, New London, CT and 8465705, New Haven, CT. The vertical resolution of the multibeam data is approximately 0.5% of the water depth.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: Emily B. Christman
Originator:
Atlantic Hydrographic Branch, National Ocean Survey, National Oceanic and Atmospheric Administration, Norfolk, VA
Publication_Date: Unpublished Material
Title: H11441 bathymetry
Edition: 1.0
Geospatial_Data_Presentation_Form: raster digital data
Type_of_Source_Media: computer hard drive
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20050427
Ending_Date: 20050522
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: H11441 bathymetry
Source_Contribution: Original processed multibeam bathymetric data.
Source_Information:
Source_Citation:
Citation_Information:
Originator:
Atlantic Hydrographic Branch, National Ocean Survey, National Oceanic and Atmospheric Administration, Norfolk, VA
Originator: Darren Stephenson
Publication_Date: Unpublished Material
Title: H11224 bathymetry
Edition: 1.0
Geospatial_Data_Presentation_Form: raster digital data
Type_of_Source_Media: computer hard drive
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20040120
Ending_Date: 20040305
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: H11224 bathymetry
Source_Contribution: Original processed LIDAR bathymetric data.
Source_Information:
Source_Citation:
Citation_Information:
Originator:
Atlantic Hydrographic Branch, National Ocean Survey, National Oceanic and Atmospheric Administration, Norfolk, VA
Originator: Emily B. Christman
Publication_Date: Unpublished Material
Title: H11442 bathymetry
Edition: 1.0
Geospatial_Data_Presentation_Form: raster digital data
Type_of_Source_Media: computer hard drive
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20050418
Ending_Date: 20050506
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: H11442 bathymetry
Source_Contribution: Original processed multibeam bathymetric data.
Source_Information:
Source_Citation:
Citation_Information:
Originator:
Atlantic Hydrographic Branch, National Ocean Survey, National Oceanic and Atmospheric Administration, Norfolk, VA
Originator: Darren Stephenson
Publication_Date: Unpublished Material
Title: H11225 bathymetry
Edition: 1.0
Geospatial_Data_Presentation_Form: raster digital data
Type_of_Source_Media: computer hard drive
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20040120
Ending_Date: 20040305
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: H11225 bathymetry
Source_Contribution: Original processed LIDAR bathymetric data.
Source_Information:
Source_Citation:
Citation_Information:
Originator: Donald W. Haines
Originator:
Atlantic Hydrographic Branch, National Ocean Survey, National Oceanic and Atmospheric Administration, Norfolk, VA
Publication_Date: Unpublished Material
Title: H11250 bathymetry
Geospatial_Data_Presentation_Form: raster digital data
Type_of_Source_Media: computer hard drive
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20031006
Ending_Date: 20031101
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: H11250 bathymetry
Source_Contribution: Original processed multibeam bathymetric data.
Source_Information:
Source_Citation:
Citation_Information:
Originator: P. Tod Schattgen
Originator:
Atlantic Hydrographic Branch, National Ocean Survey, National Oceanic and Atmospheric Administration, Norfolk, VA
Publication_Date: Unpublished Material
Title: H11251 bathymetry
Geospatial_Data_Presentation_Form: raster digital data
Type_of_Source_Media: computer hard drive
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20081007
Ending_Date: 20081027
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: H11251 bathymetry
Source_Contribution: Original processed multibeam bathymetric data.
Source_Information:
Source_Citation:
Citation_Information:
Originator: Emily B. Christman
Originator:
Atlantic Hydrographic Branch, National Ocean Survey, National Oceanic and Atmospheric Administration, Norfolk, VA
Publication_Date: Unpublished Material
Title: H11252 bathymetry
Geospatial_Data_Presentation_Form: raster digital data
Type_of_Source_Media: computer hard drive
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20041024
Ending_Date: 20041115
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: H11252 bathymetry
Source_Contribution: Original processed multibeam bathymetric data.
Source_Information:
Source_Citation:
Citation_Information:
Originator: Emily B. Christman
Originator:
Atlantic Hydrographic Branch, National Ocean Survey, National Oceanic and Atmospheric Administration, Norfolk, VA
Publication_Date: Unpublished Material
Title: H11361 bathymetry
Geospatial_Data_Presentation_Form: raster digital data
Type_of_Source_Media: computer hard drive
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20041011
Ending_Date: 20041115
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: H11361 bathymetry
Source_Contribution: Original processed multibeam bathymetric data.
Source_Information:
Source_Citation:
Citation_Information:
Originator: P. Tod Schattgen
Originator:
Atlantic Hydrographic Branch, National Ocean Survey, National Oceanic and Atmospheric Administration, Norfolk, VA
Publication_Date: Unpublished Material
Title: H11445 bathymetry
Geospatial_Data_Presentation_Form: raster digital data
Type_of_Source_Media: computer hard drive
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20080916
Ending_Date: 20081001
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: H11445 bathymetry
Source_Contribution: Original processed multibeam bathymetric data.
Source_Information:
Source_Citation:
Citation_Information:
Originator: P. Tod Schattgen
Originator:
Atlantic Hydrographic Branch, National Ocean Survey, National Oceanic and Atmospheric Administration, Norfolk, VA
Publication_Date: Unpublished Material
Title: H11446 bathymetry
Geospatial_Data_Presentation_Form: raster digital data
Type_of_Source_Media: computer hard drive
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20080922
Ending_Date: 20081021
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: H11446 bathymetry
Source_Contribution: Original processed multibeam bathymetric data.
Source_Information:
Source_Citation:
Citation_Information:
Originator: P. Tod Schattgen
Originator:
Atlantic Hydrographic Branch, National Ocean Survey, National Oceanic and Atmospheric Administration, Norfolk, VA
Publication_Date: Unpublished Material
Title: H11997 bathymetry
Geospatial_Data_Presentation_Form: raster digital data
Type_of_Source_Media: computer hard drive
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20080915
Ending_Date: 20081029
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: H11997 bathymetry
Source_Contribution: Original processed multibeam bathymetric data.
Source_Information:
Source_Citation:
Citation_Information:
Originator: P. Tod Schattgen
Originator:
Atlantic Hydrographic Branch, National Ocean Survey, National Oceanic and Atmospheric Administration, Norfolk, VA
Publication_Date: Unpublished Material
Title: H11999 bathymetry
Geospatial_Data_Presentation_Form: raster digital data
Type_of_Source_Media: computer hard drive
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20081002
Ending_Date: 20081029
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: H11999 bathymetry
Source_Contribution: Original processed multibeam bathymetric data.
Source_Information:
Source_Citation:
Citation_Information:
Originator:
Atlantic Hydrographic Branch, National Ocean Survey, National Oceanic and Atmospheric Administration, Norfolk, VA
Originator:
Atlantic Hydrographic Branch, National Ocean Survey, National Oceanic and Atmospheric Administration, Norfolk, VA
Publication_Date: Unpublished Material
Title: H12012 bathymetry
Geospatial_Data_Presentation_Form: raster digital data
Type_of_Source_Media: computer hard drive
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20090418
Ending_Date: 20090430
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: H12012 bathymetry
Source_Contribution: Original processed multibeam bathymetric data.
Source_Information:
Source_Citation:
Citation_Information:
Originator: P. Tod Schattgen
Originator:
Atlantic Hydrographic Branch, National Ocean Survey, National Oceanic and Atmospheric Administration, Norfolk, VA
Publication_Date: Unpublished Material
Title: H12013 bathymetry
Geospatial_Data_Presentation_Form: raster digital data
Type_of_Source_Media: computer hard drive
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20090419
Ending_Date: 20090517
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: H12013 bathymetry
Source_Contribution: Original processed multibeam bathymetric data.
Process_Step:
Process_Description:
The NOAA Ship Thomas Jefferson, and two 8.5-m aluminum Jensen launches deployed from the ship, were used to acquire the multibeam echosounder (MBES) bathymetric data between October 2003 and May 2009 for surveys H11250, H11251, H11252, H11361, H11441, H11442 H11445, H11446, H11997, H11999, H12012, and H12013. Aboard the launches, the MBES data were collected with hull-mounted RESON SeaBat 240-kHz 8101 and 455-kHz 8125 shallow-water systems. These systems measure two-way sound travel time across a 150-degree swath and 120-degree swath, respectively. The SeaBat 8101 has 101 beams at a 1.5-degree beam spacing. The SeaBat 8125 has 240 beams with a cross-track beam width of 0.5 degrees at nadir. Aboard the Thomas Jefferson, MBES data for surveys H11250, H11252, and H11361 were collected with a SIMRAD EM1002 system; later surveys were collected with a RESON 7125 system. Original horizontal resolution of the MBES data was 0.5 to 2 m, depending on survey and water depth; vertical resolution of the MBES data is about 0.5% of the water depth. The bathymetric data were acquired in XTF (extended Triton data format) 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. Navigation was by TSS POS/MV 320 differential GPS-assisted inertial navigation systems; the differential GPS beacons used were from Moriches, New York, and Sandy Hook, New Jersey. HYPACK MAX 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 four to six hours of MBES acquisition. Tidal zone corrections were calculated from data acquired from National Water Level Observation stations at New London, Connecticut, New Haven, Connecticut, and Montauk, New York. Vertical datum is mean lower low water. Individuals interested in detail descriptions of the MBES acquisition and processing should consult the descriptive reports. Eleven reconnaissance cruises were conducted aboard a leased lobster boat to monitor water clarity prior to commencement of airborne LIDAR operations of surveys H11224 and H11225. These cruises, which utilized Secchi disks to determine water clarity, were conducted between the Connecticut River and Fishers Island during May 9, 2003 and January 11, 2004, when water clarity was deemed adequate. The LIDAR (light detection and ranging) data were acquired by Tenix LADS, Inc. during January 25 - March 3, 2004 with a LADS Mk II system. Airborne survey operations were conducted aboard a Dash 8-202 series aircraft with a Nd:YAG laser at heights between 1,200 and 2,200 feet, at ground speeds between 140 and 210 knots, and at 4x4 and 3x3-m laser-spot spacings. Green laser pulses were scanned beneath the aircraft in a rectilinear pattern. The returned green-laser energy reflected from the sea surface and seafloor were captured and digitally recorded. Received infrared laser energy, supplemented by an Altitude Heading Reference System (AHRS) inertial height reference and kinematic GPS, determined the height of the aircraft. Real-time positioning was provided by WADGPS (wide area differential global positioning system). Acquired data were processed with CARIS HIPS. Individuals interested in detail descriptions of the MBES and LIDAR acquisition and processing should consult the descriptive reports. Vertical datum is mean lower low water; X and Y units are meters; UTM Zone 18, NAD83.
Process_Date: Unknown
Source_Produced_Citation_Abbreviation: H11224 CARIS HIPS database
Source_Produced_Citation_Abbreviation: H11225 CARIS HIPS database
Source_Produced_Citation_Abbreviation: H11250 CARIS HIPS database
Source_Produced_Citation_Abbreviation: H11251 CARIS HIPS database
Source_Produced_Citation_Abbreviation: H11252 CARIS HIPS database
Source_Produced_Citation_Abbreviation: H11361 CARIS HIPS database
Source_Produced_Citation_Abbreviation: H11441 CARIS HIPS database
Source_Produced_Citation_Abbreviation: H11442 CARIS HIPS database
Source_Produced_Citation_Abbreviation: H11445 CARIS HIPS database
Source_Produced_Citation_Abbreviation: H11446 CARIS HIPS database
Source_Produced_Citation_Abbreviation: H11997 CARIS HIPS database
Source_Produced_Citation_Abbreviation: H11999 CARIS HIPS database
Source_Produced_Citation_Abbreviation: H12012 CARIS HIPS database
Source_Produced_Citation_Abbreviation: H12013 CARIS HIPS database
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: National Oceanic and Atmospheric Administration
Contact_Person: Castle E. Parker
Contact_Position: Hydrographer
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: castle.e.parker@noaa.gov
Process_Step:
Process_Description:
The field sheets from the surveys (average depths, not the shoal based field sheets) were read back into CARIS HIPS/SIPS software version 7.0. Using the Base Surface -> Combine command within HIPS, all of the source CARIS base surfaces were combined into a master BASE surface (eliscomb) having a 4 meter grid resolution.
Source_Used_Citation_Abbreviation: H11224 CARIS HIPS database
Source_Used_Citation_Abbreviation: H11225 CARIS HIPS database
Source_Used_Citation_Abbreviation: H11250 CARIS HIPS database
Source_Used_Citation_Abbreviation: H11251 CARIS HIPS database
Source_Used_Citation_Abbreviation: H11252 CARIS HIPS database
Source_Used_Citation_Abbreviation: H11361 CARIS HIPS database
Source_Used_Citation_Abbreviation: H11441 CARIS HIPS database
Source_Used_Citation_Abbreviation: H11442 CARIS HIPS database
Source_Used_Citation_Abbreviation: H11445 CARIS HIPS database
Source_Used_Citation_Abbreviation: H11446 CARIS HIPS database
Source_Used_Citation_Abbreviation: H11997 CARIS HIPS database
Source_Used_Citation_Abbreviation: H11999 CARIS HIPS database
Source_Used_Citation_Abbreviation: H12012 CARIS HIPS database
Source_Used_Citation_Abbreviation: H12013 CARIS HIPS database
Process_Date: 2010
Source_Produced_Citation_Abbreviation: eliscomb.csar
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Bill Danforth
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
Country: USA
Contact_Voice_Telephone: 508-548-8700 x2274
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: bdanforth@usgs.gov
Process_Step:
Process_Description:
The combined base surface was exported from CARIS as a Bathymetric Attributed Grid (BAG) file. See http://www.opennavsurf.org/papers/ons_fsd.pdf for a description of the BAG format.
Source_Used_Citation_Abbreviation: eliscomb.csar
Process_Date: 2010
Source_Produced_Citation_Abbreviation: eliscomb.bag
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Bill Danforth
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
Contact_Voice_Telephone: 508-548-8700 x2274
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: bdanforth@usgs.gov
Process_Step:
Process_Description:
The BAG surface was imported into Fledermaus v7.2 to make equivalent digital terrain model (DTM) files. The floating point format for each sounding depth point is preserved during data import. Additionally, the BAG surface was imported into Fledermaus as "gridded data", therefore re-gridding of data did not occur during the import process and thus preserved the original resolution of the CARIS base surface. The dtm was then exported as an ESRI ASCII raster file.
Source_Used_Citation_Abbreviation: eliscomb.bag
Process_Date: 2010
Source_Produced_Citation_Abbreviation: eliscomb.asc
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Bill Danforth
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
Contact_Voice_Telephone: 508-548-8700 x2274
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: bdanforth@usgs.gov
Process_Step:
Process_Description:
The ESRI ASCII raster file was then converted into raster within ArcToolbox v9.3 using the ASCII to Raster conversion tool, and reprojected using the data management tool Project Raster (ArcToolbox, Data Management Tools, Projections and Transformations) from UTM Zone 18N, NAD 83 to Geographic, WGS84. The options specified in the Project Raster tool were: 1. Input coordinate system: NAD_1983_UTM_Zone_18N 2. Output coordinate system: GCS_WGS_1984 3. Geographic transformation method: NAD_1983_WGS_1984_5 4. Resampling technique: BILINEAR 5. Output cell size: 0.000043 (decimal degrees, default as calculated by ArcMap for a 4 meter cell size) The geographic transformation selected is the most accurate one provided by ESRI as it ties in WGS84 with ITRF96, thus reflecting the earth centered offset (x-y-z) between WGS84 and NAD83 (from the ESRI Knowledge Base Document Number 24159).
Source_Used_Citation_Abbreviation: eliscomb.asc
Process_Date: 2010
Source_Produced_Citation_Abbreviation: eliscomb_geo
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Bill Danforth
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
Country: USA
Contact_Voice_Telephone: 507-548-8700 x2274
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: bdanforth@usga.gov
Process_Step:
Process_Description:
Edits to the metadata were made to fix any errors that MP v 2.9.46 flagged. This is necessary to enable the metadata to be successfully harvested for various data catalogs. In some cases, this meant adding text "Information unavailable" or "Information unavailable from original metadata" for those required fields that were left blank. Other minor edits were probably performed (title, publisher, publication place, etc.). The distribution format name was modified in an attempt to be more consistent with other metadata files of the same data format. Reordered the links in the identification section so a landing page link is first. Added the source citation abbreviation and used the title for the value. Attempted to modify http to https where appropriate. The metadata date (but not the metadata creator) was edited to reflect the date of these changes. The metadata available from a harvester may supersede metadata bundled within a download file. Compare the metadata dates to determine which metadata file is most recent.
Process_Date: 20180516
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: VeeAnn A. Cross
Contact_Position: Marine Geologist
Contact_Address:
Address_Type: Mailing and Physical
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Contact_Voice_Telephone: 508-548-8700 x2251
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: vatnipp@usgs.gov
Process_Step:
Process_Description: USGS Thesaurus keywords added to the keyword section.
Process_Date: 20180720
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: VeeAnn A. Cross
Contact_Position: Marine Geologist
Contact_Address:
Address_Type: Mailing and Physical
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Contact_Voice_Telephone: 508-548-8700 x2251
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: vatnipp@usgs.gov
Process_Step:
Process_Description: Crossref DOI link was added as the first link in the metadata.
Process_Date: 20191118
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: VeeAnn A. Cross
Contact_Position: Marine Geologist
Contact_Address:
Address_Type: Mailing and Physical
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Contact_Voice_Telephone: 508-548-8700 x2251
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: vatnipp@usgs.gov
Process_Step:
Process_Description:
Added keywords section with USGS persistent identifier as theme keyword.
Process_Date: 20200908
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: VeeAnn A. Cross
Contact_Position: Marine Geologist
Contact_Address:
Address_Type: Mailing and Physical
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Contact_Voice_Telephone: 508-548-8700 x2251
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: vatnipp@usgs.gov
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Raster
Raster_Object_Information:
Raster_Object_Type: Grid Cell
Row_Count: 7277
Column_Count: 16121
Vertical_Count: 1
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geographic:
Latitude_Resolution: 0.000043
Longitude_Resolution: 0.000043
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:
A 4-m grid of the combined bathymetry data from NOAA surveys H11224, H11225, H11250, H11251, H11252, H11361, H11441, H11442, H11445, H11446, H11997, H11999, H12012, and H12013 offshore in eastern Long Island Sound and westernmost Block Island Sound in geographic, WGS84 coordinates.
Entity_and_Attribute_Detail_Citation: U.S. Geological Survey
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 Environmental Protection (CT DEP) 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 DEP 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: AIG
Format_Version_Number: ArcGIS 9.3.
Format_Specification: Esri ArcRaster Grid
Format_Information_Content:
One file (eliscomb_geo.zip) containing the ArcGIS grid file components, browse graphic and metadata.
File_Decompression_Technique: zip archive
Transfer_Size: 130
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information: Access_Instructions: Data are downloadable via the World Wide Web (WWW).
Offline_Option:
Offline_Media: DVD-ROM
Recording_Capacity:
Recording_Density: 4.7
Recording_Density_Units: Gbytes
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.
Available_Time_Period:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2011
Metadata_Reference_Information:
Metadata_Date: 20211116
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: whsc_data_contact@usgs.gov
Contact_Instructions:
The metadata contact email address is a generic address in the event the metadata contact is no longer with the USGS or the email is otherwise invalid.
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

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