H11044N_10GEO: 10-m Interpolated Bathymetric Grid of the Northern Part of National Oceanic and Atmospheric Administration (NOAA) Survey H11044 off Milford, Connecticut (Geographic)

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Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: National Oceanic and Atmospheric Administration
Originator: U.S. Geological Survey
Publication_Date: 2008
Title:
H11044N_10GEO: 10-m Interpolated Bathymetric Grid of the Northern Part of National Oceanic and Atmospheric Administration (NOAA) Survey H11044 off Milford, Connecticut (Geographic)
Edition: 1.0
Geospatial_Data_Presentation_Form: raster digital data
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 2008-1146
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/2008/1146/data/bathy/grids/geo/esrigrid/h11044n_10geo.zip>
Online_Linkage: <http://pubs.usgs.gov/of/2008/1146/html/catalog.html>
Larger_Work_Citation:
Citation_Information:
Originator: L.J. Poppe
Originator: S.D. Ackerman
Originator: K.Y. McMullen
Originator: P.T. Schattgen
Originator: J.D. Schaer
Originator: E.F. Doran
Publication_Date: 2008
Title:
Interpolation of Reconnaissance Multibeam and Single-Beam Bathymetry Offshore of Milford, Connecticut
Edition: 1.0
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 2008-1146
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/2008/1146/>
Description:
Abstract:
During 2001 the NOAA Ship RUDE completed charting survey H11044 that covered a roughly 293 km2 area of the sea floor in north-central Long Island Sound, off Milford Connecticut. Although 100 percent coverage was achieved with sidescan sonar for charting purposes, only reconnaissance (spaced line) bathymetry was acquired with shallow-water multibeam and single-beam systems. Therefore, further processing was conducted at the USGS's Woods Hole Science Center to provide bathymetric datasets with more continuous coverage. This project produced grids and GeoTIFF imagery of the combined and interpolated shallow-water multibeam and single-beam bathymetry generated from the northern part of this data set. 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. 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 interpolated and gridded shallow-water multibeam and single-beam bathymetric data within specific areas of special interest.
Purpose:
To release a 10-m grid of the shallow-water multibeam and single-beam bathymetry generated from the northern part of NOAA survey H11044 off Milford, Connecticut in a Geographic Coordinate System.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20010507
Ending_Date: 20011113
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -73.128918
East_Bounding_Coordinate: -72.933583
North_Bounding_Coordinate: 41.248983
South_Bounding_Coordinate: 41.127808
Keywords:
Theme:
Theme_Keyword_Thesaurus: General
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: USGS
Theme_Keyword: Woods Hole Science Center
Theme_Keyword: shallow-water multibeam bathymetry
Theme_Keyword: bathymetry
Theme_Keyword: Coastal and Marine Geology Program
Theme_Keyword: CMGP
Theme_Keyword: WHSC
Theme_Keyword: Reson 8125
Theme_Keyword: NOAA survey H11044
Theme_Keyword: H11044
Theme_Keyword: National Oceanic and Atmospheric Administration
Theme_Keyword: NOAA
Theme_Keyword: grid
Theme_Keyword: Open-File Report 2008-1146
Theme_Keyword: ArcRaster grid
Theme_Keyword: OFR 2008-1146
Theme_Keyword: single-beam bathymetry
Theme_Keyword: interpolated bathymetry
Theme_Keyword: Odom Echotrac DF-3200
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: oceans and estuaries
Theme_Keyword: oceans and coastal
Theme_Keyword: elevation
Theme_Keyword: oceans
Place:
Place_Keyword_Thesaurus: General
Place_Keyword: Connecticut
Place_Keyword: Long Island Sound
Place_Keyword: U.S. East Coast
Place_Keyword: United States
Place_Keyword: North America
Place_Keyword: Atlantic Ocean
Place_Keyword: Milford
Place_Keyword: Charles Island
Place_Keyword: Stratford Point
Access_Constraints: None
Use_Constraints:
Data are not to be used for navigation purposes.

Public domain data are freely redistributable with proper metadata and source attribution. Please recognize the National Oceanic and Atmospheric Administration (NOAA) and U.S. Geological Survey (USGS) as the originators of this information.

Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: Larry Poppe
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Country: USA
Contact_Voice_Telephone: (508) 548-8700 x2314
Contact_Facsimile_Telephone: (508) 457-2310
Contact_Electronic_Mail_Address: lpoppe@usgs.gov
Browse_Graphic:
Browse_Graphic_File_Name:
<http://pubs.usgs.gov/of/2008/1146/data/bathy/grids/geo/esrigrid/h11044n_10geo.jpg>
Browse_Graphic_File_Description:
Thumbnail image showing the 10-m interpolated gridded bathymetry collected during NOAA survey H11044 in Geographic
Browse_Graphic_File_Type: JPEG
Native_Data_Set_Environment:
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.2.2.1350
Cross_Reference:
Citation_Information:
Originator: L.J. Poppe
Originator: S.D. Ackerman
Originator: E.F. Doran
Originator: A.J. 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/>
Data_Quality_Information:
Completeness_Report:
All collected data from the northern part of NOAA survey H11044 were processed and used to produce this dataset.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report: Navigation was by differential GPS
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report:
The vertical resolution of the shallow-water multibeam data is approximately 0.5% of the water depth.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Type_of_Source_Media: DVD-ROM
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20010507
Ending_Date: 20011113
Source_Currentness_Reference: ground condition
Source_Contribution:
Original processed shallow-water multibeam and single-beam bathymetric data.
Process_Step:
Process_Description:
The multibeam data were acquired in XTF (extended Triton data format) and recorded digitally through an ISIS data acquisition system. A Reson SeaBat 9003 echosounder was used to acquire the shallow-water multibeam bathymetric data and an Odom Echotrac DF-3200 dual-frequency echosounder was used to acquire the single-beam bathymetry from the NOAA ship Rude. An Odom Echotrac DF-3200 dual-frequency echosounder hull-mounted on a 23' launch deployed from the NOAA ship Rude was used to acquire sounding data in the shallower areas. These data were processed using CARIS HIPS (Hydrographic Image Processing System) software for quality control, and to incorporate sound velocity and tidal corrections. 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 multibeam acquisition. Tidal zone corrections were calculated from data acquired at tidal gauges at Bridgeport and NewHaven, Connecticut, and at Kings Point, New York. The vertical resolution of the shallow-water multibeam data is approximately 0.5% of the water depth. The data were gridded to 1.5-m resolution and exported in text (.txt) format. Vertical datum is mean lower low water; X and Y units are decimal degrees.
Process_Date: Unknown
Source_Produced_Citation_Abbreviation: h11044_1_5mddeg_xyz.txt
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: National Oceanic and Atmospheric Administration
Contact_Person: Jasper Schaer
Contact_Position: Field Operations Officer
Contact_Address:
Address_Type: mailing address
Address: 439 West York Street
City: Norfolk
State_or_Province: VA
Postal_Code: 23510
Country: USA
Contact_Voice_Telephone: 757-441-6726
Contact_Electronic_Mail_Address: jasper.schaer@noaa.gov
Process_Step:
Process_Description:
The PROJ v4.5 cartographic projections library was used to project the data to UTM zone 18 [proj +proj=utm +zone=18 +ellps=WGS84 -r -s -f %0.2f h11044_1_5mddeg_xyz.txt > UTM_H11044_1_5m.xyz].
Source_Used_Citation_Abbreviation: h11044_1_5mddeg_xyz.txt
Process_Date: 2008
Source_Produced_Citation_Abbreviation: utm_h11044_1_5m.xyz
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Seth Ackerman
Contact_Organization: Woods Hole Science Center
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 x2315
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: sackerman@usgs.gov
Process_Step:
Process_Description:
A series of GMT v4.0 (the Generic Mapping Tools) are run during this process including Minmax to determine the data bounds and to help identify anomalous values [minmax UTM_H11044_1_5m.xyz]. An AWK script was run to filter the dataset and prepare it to be processed thru the GMT block median routine [awk '{if($3>0 && $3<22 $1>4555000) printf "%6.2f\t%7.2f\t%3.2f\n",$2,$1,$3*-1}' UTM_H11044_1_5m.xyz > sda_44.end]. Based on visual inspection of the removed data points (both their location and their elevation relation to the surrounding data points) the values above 22 were indeed anomalous.
Source_Used_Citation_Abbreviation: utm_h11044_1_5m.xyz
Process_Date: 2008
Source_Produced_Citation_Abbreviation: sda_44.end
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Seth Ackerman
Contact_Organization: Woods Hole Science Center
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 x2315
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: sackerman@usgs.gov
Process_Step:
Process_Description:
GMT v4.0 programs were used to create a 10-m interpolated GMT grid of the bathymetry. Interpolation was achieved during GMT processing by running the data through a block median filter [blockmedian sda_44.end -R656854.36/674854.36/4555000.52/4570000.52/ -I10/10 -V -bod > sda_44.blockmed], a surface generating algorithm [surface sda_44.blockmed -R656854.36/674854.36/4555000.52/4570000.52/ -Gsda_big44.grd -C0.1 -I10/10 -T1.0 -V -bid], and the grid cut program [grdcut sda_big44.grd -R656854.36/673134.36/4555000.52/4568110.52/ -Gsda_cut44.grd]. Processing parameters were set to default unless otherwise noted in the scripts.
Source_Used_Citation_Abbreviation: sda_44.end
Process_Date: 2008
Source_Produced_Citation_Abbreviation: sda_cut44.grd
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Seth Ackerman
Contact_Organization: Woods Hole Science Center
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 x2315
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: sackerman@usgs.gov
Process_Step:
Process_Description:
The GDAL v1.3.2 (Geospatial Data Abstraction Library) commandline utility gdal_translate was used to convert the GMT grid into a 32bit GeoTIFF with proper bounds and projection information [gdal_translate -sds -a_ullr 656849.36 4554995.52 673139.36 4568115.52 -a_srs EPSG:32618 sda_cut44.grd sda_44_new2.tif].
Source_Used_Citation_Abbreviation: sda_cut44.grd
Process_Date: 2008
Source_Produced_Citation_Abbreviation: sda_44_new2.tif
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Seth Ackerman
Contact_Organization: Woods Hole Science Center
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 x2315
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: sackerman@usgs.gov
Process_Step:
Process_Description:
The GeoTIFF created in GMT/GDAL was then clipped by a shapefile of the survey extent using ESRI ArcGIS ArcToolbox v9.2 (Spatial Analyst, Extraction, Extract by Mask).
Source_Used_Citation_Abbreviation: sda_44_new2.tif
Process_Date: 2008
Source_Produced_Citation_Abbreviation: h11044n_10utm
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Seth Ackerman
Contact_Organization: Woods Hole Science Center
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 x2315
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: sackerman@usgs.gov
Process_Step:
Process_Description:
The UTM grid was reprojected to create a grid in Geographic coordinates using ESRI ArcGIS ArcToolbox v9.2 (Data Management Tools, Projections and Transformations, Raster, Project Raster).
Source_Used_Citation_Abbreviation: h11044n_10utm
Process_Date: 2008
Source_Produced_Citation_Abbreviation: h11044n_10geo
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Seth Ackerman
Contact_Organization: Woods Hole Science Center
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: 504-548-8700 x2315
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: sackerman@usgs.gov
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Raster
Raster_Object_Information:
Raster_Object_Type: Grid Cell
Row_Count: 1348
Column_Count: 2173
Vertical_Count: 1
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geographic:
Latitude_Resolution: 0.000122
Longitude_Resolution: 0.000088
Geographic_Coordinate_Units: Decimal degrees
Planar:
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: row and column
Coordinate_Representation:
Abscissa_Resolution: 0.000090
Ordinate_Resolution: 0.000090
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: 0.001
Depth_Distance_Units: meters
Depth_Encoding_Method: Explicit depth coordinate included with horizontal coordinates
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: 02543-1598
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, the USGS, NOAA, Connecticut Department of Environmental Protection, 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.

Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.

Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: ARCG
Format_Specification: ESRI ArcRaster Grid
Format_Information_Content:
One file (h11044n_10geo.zip) containing the ArcGIS grid file components, browse graphic and metadata.
File_Decompression_Technique: zip archive
Transfer_Size: 3.1
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
<http://pubs.usgs.gov/of/2008/1146/data/bathy/grids/geo/esrigrid/h11044n_10geo.zip>
Network_Resource_Name: <http://pubs.usgs.gov/of/2008/1146/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:
The user must have a program capable of reading the ESRI grid data format.
Available_Time_Period:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2008
Metadata_Reference_Information:
Metadata_Date: 20080930
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Larry Poppe
Contact_Organization: U.S. Geological Survey
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Country: USA
Contact_Voice_Telephone: (508) 548-8700 x2314
Contact_Facsimile_Telephone: (508) 457-2310
Contact_Electronic_Mail_Address: lpoppe@usgs.gov
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
Metadata_Access_Constraints: None
Metadata_Use_Constraints: None
Metadata_Extensions:
Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>
Profile_Name: ESRI Metadata Profile
Generated by mp version 2.8.6 on Tue Sep 30 11:20:55 2008