Dataset Identification:
Resource Abstract:
- description: 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 composite bathymetric grid in Geographic presented
herein covers a roughly 156 km square area (surveys H11252 and H11361) of the sea floor in the area near 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 survey areas. 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.; 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 composite bathymetric
grid in Geographic presented herein covers a roughly 156 km square area (surveys H11252 and H11361) of the sea floor in the
area near 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 survey areas.
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.
Citation
- Title COMP2M_GEO: Composite 2-m Bathymetric ArcRaster Grid of National Oceanic and Atmospheric Administration (NOAA) Surveys H11252
and H11361 from Eastern Long Island Sound (Geographic).
-
- creation Date
2017-12-12T01:46:21.323059
Resource language:
Processing environment:
Back to top:
Metadata data stamp:
2018-08-06T21:51:31Z
Resource Maintenance Information
- maintenance or update frequency:
- notes: This metadata record was generated by an xslt transformation from a dc metadata record; Transform by Stephen M. Richard, based
on a transform by Damian Ulbricht. Run on 2018-08-06T21:51:31Z
Metadata contact
-
pointOfContact
- organisation Name
CINERGI Metadata catalog
-
- Contact information
-
-
- Address
-
- electronic Mail Address cinergi@sdsc.edu
Metadata language
eng
Metadata character set encoding:
utf8
Metadata standard for this record:
ISO 19139 Geographic Information - Metadata - Implementation Specification
standard version:
2007
Metadata record identifier:
urn:dciso:metadataabout:5242b572-7e24-40e0-82cf-72e8f1297e0c
Metadata record format is ISO19139 XML (MD_Metadata)