ELISCOMB_4MBAT_GEO.TIF: Color Shaded-Relief GeoTIFF Image Showing the Combined 4-m 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 (Geographic, WGS84)
Originator: National Oceanic and Atmospheric Administration
Originator: U.S. Geological Survey
Publication_Date: 2011
Title:
ELISCOMB_4MBAT_GEO.TIF: Color Shaded-Relief GeoTIFF Image Showing the Combined 4-m 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 (Geographic, WGS84)
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 color shaded-relief GeoTIFF of the 4-m 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: 41.079363
Keywords:
Theme:
Theme_Keyword_Thesaurus: General
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: GeoTIFF
Theme_Keyword: Open-File Report 2011-1003
Theme_Keyword: OFR 2011-1003
Theme_Keyword: RESON 8125
Theme_Keyword: RESON 8101
Theme_Keyword: hill-shaded
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:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: oceans and estuaries
Theme_Keyword: oceans and coastal
Theme_Keyword: elevation
Theme_Keyword: oceans
Theme_Keyword: imageryBaseMapsEarthCover
Place:
Place_Keyword_Thesaurus: General
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.
Browse image of a 4-m hill-shaded GeoTIFF 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
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: Woods Hole Coastal and Marine Science Center, Woods Hole, MA
Publisher: U.S. Geological Survey, Coastal and Marine Geology Program
Other_Citation_Details: 1 CD-ROM
Online_Linkage: ttp://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. Although there are no depth attributes associated with the GeoTIFF image, pixel values convey RGB values of individual cells. Warmer colors (e.g. red) are shallower depths; cooler colors are deeper.
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_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_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_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_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_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 harddrive
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20081007
Ending_Date: 20081027
Source_Currentness_Reference: ground condition
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_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_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_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_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_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_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: 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_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_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.
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.
A color, hill-shaded GeoTIFF image with a world file was exported from CARIS in the UTM projection of the original field sheets (UTM zone 18N, horizontal datum NAD83). Sun illumination is from the north at 45 degrees above the horizon, and vertical exaggeration is 5x.
The UTM projected GeoTIFF was imported into ArcGIS v9.3 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).
A color-encoded hill-shaded GeoTIFF 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. There are no attributes associated with the GeoTIFF image. Pixel values convey RGB values of individual cells. Warmer colors (e.g. red) are shallower depths; cooler colors (e.g. blues) are deeper.
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: TIFF
Format_Specification: GeoTIFF
Format_Information_Content:
One file (eliscomb_4mbat_geo.zip) containing the GeoTIFF, world file, browse graphic and metadata.
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:
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. 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: 20110307
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