H11043_GEO_3MBATHY.TIF: Color-Encoded Image of 3-m Gridded Hill-Shaded Bathymetry From Long Island Sound off Branford Connecticut (Geographic)

Metadata also available as Outline | Text

Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: U.S. Geological Survey
Publication_Date: 2006
Title:
H11043_GEO_3MBATHY.TIF: Color-Encoded Image of 3-m Gridded Hill-Shaded Bathymetry From Long Island Sound off Branford Connecticut (Geographic)
Edition: 1.0
Geospatial_Data_Presentation_Form: remote-sensing image
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 2005-1145
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/2005/1145/data/bathy/geotifs/h11043/geo/h11043_geo_3mbathy.zip>
Larger_Work_Citation:
Citation_Information:
Originator: L.J. Poppe
Originator: S.D. Ackerman
Originator: E.F. Doran
Originator: A.L. Beaver
Originator: J.M. Crocker
Originator: P.T. Schattgen
Publication_Date: 2006
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: Woods Hole Science Center, Woods Hole, MA
Publisher: U.S. Geological Survey, Coastal and Marine Geology Program
Online_Linkage: <http://pubs.usgs.gov/of/2005/1145>
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 regridded and interpolated this NOAA bathymetric survey into a complete-coverage acoustic image of the sea floor. The image presented herein covers a 41.1 km square area of the sea floor in north-central Long Island Sound off Branford, Connecticut and was produced from data collected during NOAA survey H11043.

This imagery may 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. This bathymetry may also serve as a base map 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 geotiff image of the 3-m gridded bathymetry generated from NOAA survey H11043 in Long Island Sound off Branford, Connecticut in geographic.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2005
Currentness_Reference: publication date
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -72.870617
East_Bounding_Coordinate: -72.774626
North_Bounding_Coordinate: 41.236581
South_Bounding_Coordinate: 41.149329
Keywords:
Theme:
Theme_Keyword_Thesaurus: General
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: USGS
Theme_Keyword: National Oceanic and Atmospheric Administration
Theme_Keyword: NOAA
Theme_Keyword: Woods Hole Science Center
Theme_Keyword: NOAA Ship RUDE
Theme_Keyword: geotiff
Theme_Keyword: image
Theme_Keyword: ArcView
Theme_Keyword: bathymetry
Theme_Keyword: gridded
Theme_Keyword: geographic
Theme_Keyword: Universal Transverse Mercator
Theme_Keyword: Survey H11043
Theme_Keyword: Coastal and Marine Geology Program
Theme_Keyword: CMGP
Theme_Keyword: WHSC
Theme_Keyword: pseudo-color image
Place:
Place_Keyword_Thesaurus: General
Place_Keyword: North America
Place_Keyword: United States
Place_Keyword: Atlantic Ocean
Place_Keyword: Long Island Sound
Place_Keyword: Connecticut
Place_Keyword: U.S. East Coast
Place_Keyword: Townshend Ledge
Place_Keyword: Branford Reef
Place_Keyword: Branford
Access_Constraints: None
Use_Constraints:
Data are not for navigation purposes.

Public domain data are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey (USGS) as the source 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
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/2005/1145/graphics/browse_graphics/h11043_geo_3mbathy.jpg>
Browse_Graphic_File_Description:
Color image showing an overview of NOAA survey H11043 in geographic
Browse_Graphic_File_Type: JPEG
Data_Set_Credit:
Please acknowledge NOAA and the NOAA Ship RUDE as the originators of the data from which this data set was derived.
Native_Data_Set_Environment:
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.1.0.722
Cross_Reference:
Citation_Information:
Originator: L.J. Poppe
Originator: V.F. Paskevich
Originator: M.S. Moser
Originator: M.L. DiGiacomo-Cohen
Originator: E.B. Christman
Publication_Date: 2004
Title:
Sidescan Sonar Imagery and Surficial Geologic Interpretation of the Sea Floor off Branford, Connecticut
Edition: 1.0
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 2004-1003
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/2004/1003>

Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report: There are no attributes associated with a geotiff image.
Completeness_Report:
All collected data were processed and used to produce an image of the interpolated and gridded dataset.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report: Navigation was by Differential GPS
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Publication_Date: Unpublished Material
Title: H11043 Bathymetry
Edition: 1
Type_of_Source_Media: DVD-ROM
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2002
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: h11043_1m_decimal_degrees_xyz.txt
Source_Contribution:
Original gridded, but not interpolated data. This had resulted in areas of no data between many of the ship's tracks.
Process_Step:
Process_Description:
The bathymetry data were collected during 2002 as part of NOAA surveys H11043 aboard the NOAA Ship RUDE. The RUDE, which supports NOAA's east-coast nautical charting mission, is outfitted to acquire single-beam bathymetry with an Odom Echotrac DF-3200 duel frequency echosounder and shallow water multibeam bathymetry with a Reson 8125 system. The Reson multibeam system operates at 455 KHz with a 120 degree across track swath and 240 beams along its swath. The multibeam data for these surveys were acquired in XTF (extended Triton data format) and recorded digitally through an ISIS data acquisition system. Once digitally recorded, the XTF data were processed using CARIS HIPS/SIPS software to quality control the data and to incorporate sound velocity and tidal corrections. Vertical datum is mean lower low water.
Process_Date: 2003
Source_Produced_Citation_Abbreviation: h11043_1m_decimal_degrees_xyz.txt
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: National Oceanic and Atmospheric Administration
Contact_Person: Crew of the NOAA Ship RUDE
Contact_Address:
Address_Type: mailing address
Address: Atlantic Hydrographic Branch
Address: 439 West York Street
City: Norfolk
State_or_Province: VA
Postal_Code: 23510
Country: USA
Process_Step:
Process_Description:
The original multibeam data sets, which are in ASCII comma-delimited text, do not entirely cover the sea floor because line spacing during acquisition was such that areas of no data often are present between the ship's tracks. Therefore, further processing was conducted at the USGS's Woods Hole Science Center to provide bathymetric datasets with more continuous coverage. First, all non-standardized records were assumed to be bad records and were removed. Subsequently, the PROJ.4 cartographic projections library was used to project the data, the SwathEd software produced by the Ocean Mapping Group at the University of New Brunswick was used to create the grids from the actual sounding data, and GMT (the Generic Mapping Tools) was used to create a 3-m interpolated grid of the bathymetry. Interpolation was achieved during GMT processing by running the data through a block median filter and using a surface generating algorithm with a tension of 0.5. Other parameters were set at default. The grid was projected into Universal Transverse Mercator, Zone 18N.
Source_Used_Citation_Abbreviation: h11043_1m_decimal_degrees_xyz.txt
Process_Date: 2005
Source_Produced_Citation_Abbreviation: h11043_bathy3
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Seth Ackerman
Contact_Organization: U.S. Geological Survey
Contact_Position: GIS Specialist
Contact_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:
A sun-illuminated surface was generated from the interpolated grid using ArcTool box with hill-shading from 270 degrees (a direction parallel to most of the ship's tracks) to minimize artifacts and angle of 45 degrees above the horizon.
Source_Used_Citation_Abbreviation: h11043_bathy3
Process_Date: 2005
Source_Produced_Citation_Abbreviation: h11043_hlshd3
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Seth Ackerman
Contact_Organization: U.S. Geological Survey
Contact_Position: GIS Specialist
Contact_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:
ArcView 3.3 extension grid2image (Image Conversion-Georeferencing) was used to create the color geotiff image. As part of this process, the bathymetry was color coded to user-specified full-spectrum legend colors and the hill-shaded grid was saved as a geotiff image preserving both the legend colors and hill shading.
Source_Used_Citation_Abbreviation: h11043_bathy3
Source_Used_Citation_Abbreviation: h11043_hlshd3
Process_Date: 2005
Source_Produced_Citation_Abbreviation: h11043_utm18_3m.tif
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Seth Ackerman
Contact_Organization: U.S. Geological Survey
Contact_Position: GIS Specialist
Contact_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:
The Blue Marble Geographic Transformer was used to project the UTM zone 18 geotiff image into geographic WGS84.
Source_Used_Citation_Abbreviation: h11043_utm18_3m.tif
Process_Date: 2005
Source_Produced_Citation_Abbreviation: h11043_geo_3mbathy.tif
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 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: Pixel
Row_Count: 3230
Column_Count: 2674
Vertical_Count: 1

Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geographic:
Geographic_Coordinate_Units: Decimal degrees
Planar:
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: row and column
Coordinate_Representation:
Abscissa_Resolution: 0.000036
Ordinate_Resolution: 0.000027
Geodetic_Model:
Horizontal_Datum_Name: D_WGS_1984
Ellipsoid_Name: WGS_1984
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257224

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_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 x2314
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: lpoppe@usgs.gov
Resource_Description:
Downloadable Data: Geotiff image of the 3-m color-encoded hill-shaded bathymetry of NOAA survey H11043 in geographic.
Distribution_Liability:
Although this data set has been used by the USGS and NOAA, no warranty, expressed or implied, is made by the USGS or NOAA 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 the USGS or NOAA in the use of these data or related materials.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: TIFF
Format_Information_Content: Two files: h11043_geo_3mbathy.tif and h11043_geo_3mbathy.tfw)
File_Decompression_Technique: zip archive
Transfer_Size: 0.000
Fees: None
Technical_Prerequisites:
The user must have a program capable of reading and processing "geotiff" images.
Available_Time_Period:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2005

Metadata_Reference_Information:
Metadata_Date: 20060126
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
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

Generated by mp version 2.8.6 on Thu Jan 26 08:11:56 2006