Identification_Information:
Citation:
Citation_Information:
Originator: U.S. Geological Survey
Publication_Date: 2007
Title: H11252_2MUTM18_MB.TIF: Color Hill-Shaded GeoTIFF Image Showing the 2-m bathymetry Generated from National Oceanic and Atmospheric Administration (NOAA) Survey H11252 in Eastern Long Island Sound (UTM Zone 18)
Edition: 1.0
Geospatial_Data_Presentation_Form: remote-sensing image
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 2007-1191
Publication_Information:
Publication_Place: Woods Hole Science Center, Woods Hole, MA
Publisher: U.S. Geological Survey, Coastal and Marine Geology Program
Online_Linkage: http://pubs.usgs.gov/of/2007/1191/data/h11252/bathy/geotifs/utm/h11252_2mutm18_mb.zip
Online_Linkage: http://pubs.usgs.gov/of/2007/1191/data/h11252/bathy/geotifs/utm/
Online_Linkage: http://pubs.usgs.gov/of/2007/1191/html/catalog.html
Larger_Work_Citation:
Citation_Information:
Originator: L.J. Poppe
Originator: J.F. Denny
Originator: S.J. Williams
Originator: M.S. Moser
Originator: N.A. Forfinski
Originator: H.F. Stewart
Originator: E.F. Doran
Publication_Date: 2007
Title: The Geology of Six Mile Reef, Eastern Long Island Sound
Edition: 1.0
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 2007-1191
Publication_Information:
Publication_Place: Woods Hole Science Center, Woods Hole, MA
Publisher: U.S. Geological Survey, Coastal and Marine Geology Program
Other_Citation_Details: 1 DVD-ROM
Online_Linkage: http://pubs.usgs.gov/of/2007/1191/
Description:
Abstract:
The U.S. Geological Survey, in cooperation with the National Oceanic and Atmospheric Administration and the Connecticut Department of Environmental Protection, has produced detailed geologic maps of the sea floor in Long Island Sound, a major East Coast estuary surrounded by the most densely populated region of the United States. These studies have built upon cooperative research with the State of Connecticut that was initiated in 1982. The current phase of this research program is directed toward studies of sea-floor sediment distribution, processes that control sediment distribution, nearshore environmental concerns, and the relation of benthic community structures to the sea-floor geology.
Anthropogenic wastes, toxic chemicals, and changes in land-use patterns resulting from residential, commercial, and recreational development have stressed the environment of the Sound, causing degradation and potential loss of benthic habitats (Koppelman and others, 1976; Long Island Sound Study, 1994). Detailed maps of the sea floor are needed to help evaluate the extent of adverse impacts and to help manage resources wisely in the future. Therefore, in a continuing effort to better understand Long Island Sound, we have constructed and interpreted multibeam bathymetric data within specific areas of special interest. The color GeoTIFF of hill-shaded bathymetry in UTM Zone 18 projection presented herein covers a roughly 64 km square area of the sea floor in the area just west of Six Mile Reef, eastern Long Island Sound. The original multibeam bathymetric data were collected during 2004 as part of charting applications aboard the NOAA Survey Vessel Thomas Jefferson. A Simrad EM1002 multibeam system mounted on the hull of this vessel was used to acquire data along survey lines from the deeper water (>20 m) parts of the study area. Two 29-foot launches with hull-mounted Reson systems were deployed from the ship and were used to acquire data along survey lines from the shallower areas.
Detailed bathymetric data and their interpretations serve many purposes, including: (1) defining the geological variability of the sea floor, which is one of the primary controls of benthic habitat diversity; (2) improving our understanding of the processes that control the distribution and transport of bottom sediments and the distribution of benthic habitats and associated infaunal community structures; and (3) providing a detailed framework for future research, monitoring, and management activities. The bathymetric data models also serve as base maps for subsequent sedimentological, geochemical, and biological observations, because precise information on environmental setting is important for selection of sampling sites and for accurate interpretation of point measurements.
Purpose: To release a color GeoTIFF image of the 2-m shaded-relief bathymetry generated from NOAA survey H11252 in eastern Long Island Sound. This hill-shaded GeoTIFF in UTM Zone 18 serves as a starting point for a geologic study of the area surrounding Six Mile Reef in eastern Long Island Sound and can be used as a base for interpretative layers. The GeoTIFF can be used in a Geographic Information System (GIS) to dramatically display the varied bathymetry and geologic features of the area.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2004
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -72.650332
East_Bounding_Coordinate: -72.529370
North_Bounding_Coordinate: 41.217184
South_Bounding_Coordinate: 41.149146
Keywords:
Theme:
Theme_Keyword_Thesaurus: General
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: USGS
Theme_Keyword: Woods Hole Science Center
Theme_Keyword: multibeam bathymetry
Theme_Keyword: bathymetry
Theme_Keyword: Coastal and Marine Geology Program
Theme_Keyword: CMGP
Theme_Keyword: WHSC
Theme_Keyword: Simrad EM1002
Theme_Keyword: Reson 8125
Theme_Keyword: Reson 8101
Theme_Keyword: NOAA Survey H11252
Theme_Keyword: H11252
Theme_Keyword: National Oceanic and Atmospheric Administration
Theme_Keyword: NOAA
Theme_Keyword: GeoTIFF
Theme_Keyword: Open-File Report 2007-1191
Theme_Keyword: Universal Transverse Mercator
Theme_Keyword: OFR2007-1191
Theme_Keyword: NOAA Project Identifier OPR-B370-TJ
Theme_Keyword: color-encoded shaded-relief image
Theme_Keyword: Connecticut Department of Environmental Protection
Theme_Keyword: CTDEP
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: oceans and estuaries
Theme_Keyword: oceans and coastal
Theme_Keyword: elevation
Theme_Keyword: imageryBaseMapsEarthCover
Place:
Place_Keyword: Connecticut
Place_Keyword: New York
Place_Keyword: Long Island Sound
Place_Keyword: U.S. East Coast
Place_Keyword: United States
Place_Keyword: North America
Place_Keyword: Atlantic Ocean
Place_Keyword: Six Mile Reef
Access_Constraints: None
Use_Constraints: Public domain data are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey (USGS) and the Connecticut Department of Environmental Protection (CTDEP) as the originators of this data set.
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Larry Poppe
Contact_Organization: U.S. Geological Survey
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Country: USA
Contact_Voice_Telephone: 508-548-8700 x2314
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: lpoppe@usgs.gov
Browse_Graphic:
Browse_Graphic_File_Name: http://pubs.usgs.gov/of/2007/1191/data/h11252/bathy/geotifs/utm/h11252_2mutm18_mb.gif
Browse_Graphic_File_Description: Thumbnail image showing the color hill-shaded GeoTIFF of the 2-m bathymetry from NOAA survey H11252 in UTM, Zone 18.
Browse_Graphic_File_Type: GIF
Data_Set_Credit: Source data were acquired during National Oceanic and Atmospheric Administration (NOAA) survey H11252. Please acknowledge NOAA as the originator of the dataset from which this dataset was derived.
Native_Data_Set_Environment: Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.1.0.780
Cross_Reference:
Citation_Information:
Originator: L.J. Poppe
Originator: S.J. Williams
Originator: M.S. Moser
Originator: N.A. Forfinski
Originator: H.F. Stewart
Originator: E.F. Doran
Publication_Date: 2007
Title: Quaternary geology and sedimentary processes in the vicinity of Six Mile Reef, eastern Long Island Sound
Edition: 1.0
Series_Information:
Series_Name: Journal of Coastal Research
Issue_Identification: v. 23, no. 6
Data_Quality_Information:
Attribute_Accuracy:
Completeness_Report: All collected data were processed and used to produce this dataset. The area is considered complete despite some gaps in the data (e.g. northwestern corner of the dataset).
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report: Navigation was by differential GPS. Horizontal resolution of the data varies with water depth, but averages 2 m.
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report: Vertical resolution is about 0.5% of the water depth.
Lineage:
Source_Information:
Type_of_Source_Media: DVD-ROM
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2004
Source_Currentness_Reference: ground condition
Source_Contribution: The original multibeam bathymetric data acquired with Simrad EM1002, Reson 8101, and 8125 echosounder systems during NOAA cruise H11252 aboard the NOAA ship Thomas Jefferson. A Simrad EM1002 multibeam system mounted on the hull of this vessel was used to acquire data along survey lines from the deeper water (>20 m) parts of the study area. Two 29-foot launches with hull-mounted Reson systems were deployed from the ship and were used to acquire data along survey lines from the shallower areas.
Process_Step:
Process_Description: The multibeam data for was acquired in XTF (extended Triton data format), recorded digitally through an ISIS data acquisition system, and processed using CARIS HIPS (Hydrographic Image Processing System) software for quality control, to incorporate sound velocity and tidal corrections, and to produce base surfaces averaging 2-m resolution over the study area. The raw bathymetric data were exported in xyz ASCII text format in UTM Zone 18.
Source_Used_Citation_Abbreviation: raw bathymetric data
Process_Date: 2004
Source_Produced_Citation_Abbreviation: h11252_2mutm18_xyz.txt
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Marc Moser
Contact_Organization: National Oceanic and Atmospheric Administration
Contact_Position: Field Operations Officer
Contact_Address:
Address_Type: mailing and physical address
Address: 439 West York Street
City: Norfolk
State_or_Province: VA
Postal_Code: 23510
Country: USA
Contact_Voice_Telephone: 757-441-6726
Contact_Electronic_Mail_Address: marc.s.moser@noaa.gov
Process_Step:
Process_Description: The xyz (easting, northing, and depth) data were imported to IVS Avggrid and converted to a DTM (digital terrain model). Data were then exported as an ESRI ASCI Grid file (*.asc) using IVS Magic Export Surface.
Source_Used_Citation_Abbreviation: h11252_2mutm18_xyz.txt
Process_Date: 2007
Source_Produced_Citation_Abbreviation: h11252_2mutm18_xyz.asc
Source_Produced_Citation_Abbreviation: h11252u_2m
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Jane Denny
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 x2311
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: jdenny@usgs.gov
Process_Step:
Process_Description: A full-spectrum color ramp was applied in ArcGIS and the ESRI Spatial Analyst Hillshade tool was used to sun-illuminate the ESRI Grid file. Parameters used were: azimuth: 45 degrees, altitude: 45, vertical exaggeration: 2x. The grid was then converted to a GeoTIFF format using the ESRI 'RastertoOtherFormat'
Source_Used_Citation_Abbreviation: h11252u_2m
Process_Date: 2007
Source_Produced_Citation_Abbreviation: h11252_2mutm18_mb.tif
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Jane Denny
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 x2311
Contact_Electronic_Mail_Address: jdenny@usgs.gov
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Raster
Raster_Object_Information:
Raster_Object_Type: Pixel
Row_Count: 3670
Column_Count: 5564
Vertical_Count: 1
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Grid_Coordinate_System:
Grid_Coordinate_System_Name: Universal Transverse Mercator
Universal_Transverse_Mercator:
UTM_Zone_Number: 18
Transverse_Mercator:
Scale_Factor_at_Central_Meridian: .999600
Longitude_of_Central_Meridian: -75.000000
Latitude_of_Projection_Origin: 0.000000
False_Easting: 500000.000000
False_Northing: 0.000000
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: row and column
Coordinate_Representation:
Abscissa_Resolution: 2.000359
Ordinate_Resolution: 2.000000
Planar_Distance_Units: meters
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: WGS84
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257224
Vertical_Coordinate_System_Definition:
Depth_System_Definition:
Entity_and_Attribute_Information:
Overview_Description:
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: Larry Poppe
Contact_Position: Geologist
Contact_Address:
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Contact_Voice_Telephone: 508-548-8700 x2314
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: lpoppe@usgs.gov
Resource_Description: Downloadable Data
Distribution_Liability:
Although this data set has been used by the U.S. Geological Survey (USGS), National Oceanic and Atmospheric Administration (NOAA), and the Connecticut Department of Environmental Protection (CTDEP), no warranty, expressed or implied, is made by the USGS, NOAA, and the Connecticut DEP as to the accuracy of the data and/or related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by these agencies in the use of these data or related materials.
Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: TIFF
Format_Specification: GeoTIFF
Format_Information_Content: A zip archive containing the GeoTIFF image, associated world file, browse graphic and metadata.
File_Decompression_Technique: zip archive
Transfer_Size: 0.000
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: http://pubs.usgs.gov/of/2007/1191/data/h11252/bathy/geotifs/utm/h11252_2mutm18_mb.zip
Network_Resource_Name: http://pubs.usgs.gov/of/2007/1191/data/h11252/bathy/geotifs/utm/
Network_Resource_Name: http://pubs.usgs.gov/of/2007/1191/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: Gbytes
Recording_Format: UDF
Fees: None
Technical_Prerequisites: This image is available as a GeoTIFF image with an accompanying world file. To utilize this data, the user must have an image viewer, image processing or GIS software package capable of importing a GeoTIFF image.
Available_Time_Period:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2007
Metadata_Reference_Information:
Metadata_Date: 20070817
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: Larry Poppe
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Country: USA
Contact_Voice_Telephone: 508-548-8700 x2314
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: lpoppe@usgs.gov
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
Metadata_Access_Constraints: None
Metadata_Use_Constraints: None
Metadata_Extensions:
Online_Linkage: http://www.esri.com/metadata/esriprof80.html
Profile_Name: ESRI Metadata Profile