Citation:
Citation_Information:
Originator: U.S. Geological Survey
Originator: National Oceanographic and Atmospheric Administration
Originator: Connecticut Department of Environmental Protection
Publication_Date: 200509
Title:
Composite sidescan sonar mosaic of National Oceanic and Atmospheric Administration (NOAA) survey H11044 in West-Central Long Island Sound off Milford, Connecticut (H11044_GEO_WGS84.TIF, geographic)
Edition: 1.0
Geospatial_Data_Presentation_Form: remote-sensing image
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 2005-1018
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/ofr20051018
Online_Linkage:
Larger_Work_Citation:
Citation_Information:
Originator: K.Y. McMullen
Originator: L.J. Poppe
Originator: V.F. Paskevich
Originator: E.F. Doran
Originator: M.S. Moser
Originator: E.B. Christman
Originator: A.L. Beaver
Publication_Date: 2005
Title:
Surficial Geologic Interpretation and Sidescan Sonar Imagery of the Sea Floor in West-Central Long Island Sound
Edition: 1.0
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 2005-1018
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Other_Citation_Details: 1 DVD-ROM
Online_Linkage: http://pubs.usgs.gov/of/2005/1018/
Description:
Abstract:
The U.S. Geological Survey, in cooperation with the National Oceanographic 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 sidescan sonar mosaics (complete-coverage acoustic images of the sea floor) within specific areas of special interest. The mosaic presented herein covers a section of the sea floor in west-central Long Island Sound off Milford, Connecticut. The mosaics 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 sidescan sonar mosaics 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:
This georeferenced image is a component of the Long Island Sound GIS database and contains the completed sidescan sonar mosaic for the study area off Milford, Connecticut. These data are intended for science researchers, students, policy makers, and the general public. The data can be used with geographic information systems (GIS) software to display geologic and oceanographic information.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2001
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -72.869907
East_Bounding_Coordinate: -72.775833
North_Bounding_Coordinate: 41.237200
South_Bounding_Coordinate: 41.151200
Keywords:
Theme:
Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:cea8d679-9666-44f2-ac73-dcc36523f5d1
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: USGS
Theme_Keyword: Coastal and Marine Geology Program
Theme_Keyword: CMGP
Theme_Keyword: Woods Hole Science Center
Theme_Keyword: WHSC
Theme_Keyword: National Oceanic and Atmospheric Administration
Theme_Keyword: NOAA
Theme_Keyword: Connecticut Department of Environmental Protection
Theme_Keyword: CT-DEP
Theme_Keyword: NOAA Ship RUDE
Theme_Keyword: GeoTIFF
Theme_Keyword: gray scale image
Theme_Keyword: sidescan sonar mosaic
Theme_Keyword: composite mosaic
Theme_Keyword: NOAA survey H11044
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: oceans
Theme_Keyword: geoscientificInformation
Theme_Keyword: imageryBaseMapsEarthCover
Theme:
Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: sea-floor acoustic reflectivity
Theme_Keyword: image mosaics
Theme_Keyword: sidescan sonar
Theme_Keyword: marine geophysics
Theme_Keyword: geospatial datasets
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: Long Island Sound
Place_Keyword: Connecticut
Place_Keyword: Milford
Place_Keyword: northeast United States
Place_Keyword: U.S. East Coast
Place_Keyword: United States
Place_Keyword: North America
Place_Keyword: Atlantic Ocean
Place_Keyword: North Atlantic Ocean
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 National Oceanic and Atmospheric Administration (NOAA) as the originators of this dataset.
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: Thumbnail overview image of the digital sidescan sonar mosaic.
Browse_Graphic_File_Type: GIF
Browse_Graphic:
Browse_Graphic_File_Name:
Browse_Graphic_File_Description: Overview image of the digital sidescan sonar mosaic.
Browse_Graphic_File_Type: GIF
Data_Set_Credit:
The NOAA Ship RUDE collected the sidescan data, LTJG Marc Moser (NOAA) and Mary DiGiacomo-Cohen (CT-DEP) processed the data, Larry Poppe (USGS) created the metadata.
Native_Data_Set_Environment:
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.0.0.535
Cross_Reference:
Citation_Information:
Originator: K.Y. McMullen
Originator: L.J. Poppe
Originator: M.L. DiGiacomo-Cohen
Originator: M.S. Moser
Originator: E.B. Christman
Publication_Date: 2005
Title:
Surficial Geology of the Sea Floor in West-Central Long Island Sound as shown by Sidescan Sonar Imagery
Edition: 1.0
Series_Information:
Series_Name: Northeastern Geology and Environmental Sciences
Issue_Identification: v. 27, no. 1, p. 60-70
Publication_Information:
Publication_Place: Lawrence, Kansas
Publisher: Allen Press