U.S. Geological Survey
2006
2-m Bathymetry from the NOAA Survey H11255 of the Sea Floor in Southeastern Long Island Sound (H11255_2MUTM18_XYZ.TXT, UTM Zone 18)
1.0
Open-File Report
2006-1059
Woods Hole Coastal and Marine Science Center, Woods Hole, MA
U.S. Geological Survey, Coastal and Marine Geology Program
https://doi.org/10.3133/ofr20061059
https://pubs.usgs.gov/of/2006/1059/data/grids/asciigrid/h11255_2mutm18_xyz.zip
https://pubs.usgs.gov/of/2006/1059/data/grids/asciigrid/h11255_2mutm18_xyz.txt
https://pubs.usgs.gov/of/2006/1059/html/catalog.html
L.J. Poppe
S.D. Ackerman
E.F. Doran
M.S. Moser
H.F. Stewart
N.A. Forfinski
U.L. Gardner
J.A. Keene
2006
Geological interpretation and multibeam bathymetry of the sea floor in southeastern Long Island Sound
1.0
Open-File Report
2006-1059
Reston, VA
U.S. Geological Survey
https://pubs.usgs.gov/of/2006/1059/
Digital terrain models (DTMs) produced from multibeam bathymetric data provide valuable base maps for marine geological interpretations. These maps help define the geological variability of the seafloor (one of the primary controls of benthic habitat diversity); improve 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 provide a detailed framework for future research, monitoring, and management activities.
The bathymetric survey interpreted herein (National Oceanic and Atmospheric Administration (NOAA) survey H11255) covers roughly 95 km2 of seafloor in southeastern Long Island Sound. This bathymetry has been examined in relation to seismic reflection data collected concurrently, as well as archived seismic profiles acquired as part of a long-standing geologic mapping partnership between the State of Connecticut and the U.S. Geological Survey (USGS). The objective of this work was to use these acoustic data sets to interpret geomorphological attributes of the seafloor, and to use these interpretations to better understand the Quaternary geologic history and modern sedimentary processes.
To release the ASCII file containing the 2-m bathymetry generated from NOAA survey H11255 in Long Island Sound.
20040919
20041002
ground condition
None planned
-72.798337
-72.635255
41.098839
41.014556
USGS Metadata Identifier
USGS:7ab00593-038e-425b-867e-7b4f26f5fcc8
None
U.S. Geological Survey
USGS
Woods Hole Science Center
multibeam bathymetry
bathymetry
Coastal and Marine Geology Program
CMGP
WHSC
Simrad EM1002
NOAA survey H11255
H11255
National Oceanic and Atmospheric Administration
NOAA
Field Activity Number 04041
NOAA Project Identifier OPR-B370-TJ
NOAA Project Identifier S-B904-TJ
ISO 19115 Topic Category
oceans
elevation
USGS Thesaurus
bathymetry
sea-floor characteristics
multibeam sonar
marine geophysics
geospatial datasets
None
Connecticut
New York
Long Island
U.S. East Coast
United States
North America
Atlantic Ocean
Long Island Sound
None
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) as the originator of this information.
U.S. Geological Survey
Lawrence Poppe
Geologist
mailing and physical address
384 Woods Hole Road
Woods Hole
MA
02543-1598
USA
(508) 548-8700 x2314
(508) 457-2310
lpoppe@usgs.gov
https://pubs.usgs.gov/of/2006/1059/data/grids/asciigrid/h11255_2mutm18_xyz.gif
Thumbnail image showing the extent of soundings collected during NOAA survey H11255
GIF
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.0.0.535
L.J. Poppe
E.F. Doram
M.S. Moser
N.A. Forfinski
U.L. Gardner
J.A. Keene
E.B. Christman
S.D. Ackerman
2005
Distribution, character, and importance of sedimentary furrows in south-central Long Island Sound
1.0
EOS
OS23B-07
Washington, DC
American Geophysical Union
Information unavailable from original metadata.
All collected data were processed and used to produce this dataset.
Navigation was by differential GPS
NOAA (assumed)
unknown
Information unavailable from original metadata.
DVD-ROM
unknown
ground condition
Information unavailable from original metadata.
The original multibeam bathymetric data acquired with a Simrad EM 1002 echosounder during NOAA cruise H11255 aboard the NOAA ship Thomas Jefferson.
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 at two resolutions: 1-m resolution in the shallower southeastern corner; 2-m resolution over the remaining study area. Among other formats (.tif and .asc), the data were exported in GeoZui format (.gutm) in UTM Zone 18.
Unknown
h11255_1m.gutm
h11255_2m.gutm
Marc Moser
National Oceanic and Atmospheric Administration
Field Operations Officer
mailing address
439 West York Street
Norfolk
VA
23510
USA
(757) 441-6746
marc.s.moser@noaa.gov
The GeoZui files were imported into Fledermaus and exported as xyz files. The xyz files were moved to a Linux system where they were cleaned to remove ASCII errors and combined (concatenated) into one file at an optimal resolution of 2 m.
h11255_1m.gutm
h11255_2m.gutm
Unknown
h11255_2mutm18_xyz.txt
Seth Ackerman
U.S. Geological Survey
GIS Specialist
mailing and physical address
384 Woods Hole Road
Woods Hole
MA
02543
USA
508-548-8700 x2315
508-457-2310
sackerman@usgs.gov
Edits to the metadata were made to fix any errors that MP v 2.9.36 flagged. This is necessary to enable the metadata to be successfully harvested for various data catalogs. In some cases, this meant adding text "Information unavailable" or "Information unavailable from original metadata" for those required fields that were left blank. Other minor edits were probably performed (title, publisher, publication place, etc.). Attempted to modify http to https where appropriate. The source information was incomplete and had to be modified to meet the standard. The geodetic model information was incomplete. The semi-major axis and denominator of flattening ratio information was added. In the case of the depth resolution, the value of 9999 was entered to indicate that the original metadata did not contain the required information. The metadata date (but not the metadata creator) was edited to reflect the date of these changes. The metadata available from a harvester may supersede metadata bundled within a download file. Compare the metadata dates to determine which metadata file is most recent.
20170213
U.S. Geological Survey
VeeAnn A. Cross
Marine Geologist
Mailing and Physical
384 Woods Hole Road
Woods Hole
MA
02543-1598
508-548-8700 x2251
508-457-2310
vatnipp@usgs.gov
USGS Thesaurus keywords added to the keyword section.
20180720
U.S. Geological Survey
VeeAnn A. Cross
Marine Geologist
Mailing and Physical
384 Woods Hole Road
Woods Hole
MA
02543-1598
508-548-8700 x2251
508-457-2310
vatnipp@usgs.gov
Crossref DOI link was added as the first link in the metadata.
20191118
U.S. Geological Survey
VeeAnn A. Cross
Marine Geologist
Mailing and Physical
384 Woods Hole Road
Woods Hole
MA
02543-1598
508-548-8700 x2251
508-457-2310
vatnipp@usgs.gov
Added keywords section with USGS persistent identifier as theme keyword.
20200908
U.S. Geological Survey
VeeAnn A. Cross
Marine Geologist
Mailing and Physical
384 Woods Hole Road
Woods Hole
MA
02543-1598
508-548-8700 x2251
508-457-2310
vatnipp@usgs.gov
Point
0.000001
0.000001
Decimal degrees
North American Datum of 1983
Geodetic Reference System 80
6378137
298.257
Mean lower low water
9999
meters
Explicit depth coordinate included with horizontal coordinates
Three space separated values per record. Value one is the eastings coordinate in meters of the ship coordinate; value 2 is the northings coordinate in meters the ship's coordinate; value three is the acquired depth value. The depth value is recorded in meters as a negative value. Depth values range from -18.44 to -38.27
U.S. Geological Survey
U.S. Geological Survey
Larry Poppe
Geologist
mailing and physical address
384 Woods Hole Road
Woods Hole
MA
02543-1598
USA
(508) 548-8700 x2314
(508) 457-2310
lpoppe@usgs.gov
Downloadable Data
Although this data set has been used by the USGS, no warranty, expressed or implied, is made by the USGS 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 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.
ASCII
The ASCII data (h11255_2mutm18_xyz.txt), browse graphic, and metadata.
zip archive
https://pubs.usgs.gov/of/2006/1059/data/grids/asciigrid/h11255_2mutm18_xyz.zip
https://pubs.usgs.gov/of/2006/1059/data/grids/asciigrid/h11255_2mutm18_xyz.txt
https://pubs.usgs.gov/of/2006/1059/html/catalog.html
Data are downloadable via the World Wide Web (WWW).
DVD-ROM
4.7
Gbytes
UDF
None
The user must have a program capable of reading and processing ASCII formatted XYZ data files.
2006
20211116
Larry Poppe
U.S. Geological Survey
Geologist
mailing and physical address
384 Woods Hole Road
Woods Hole
MA
02543-1598
USA
(508) 548-8700 x2314
(508) 457-2310
whsc_data_contact@usgs.gov
The metadata contact email address is a generic address in the event the metadata contact is no longer with the USGS or the email is otherwise invalid.
FGDC Content Standards for Digital Geospatial Metadata
FGDC-STD-001-1998
local time
None
None