U.S. Geological Survey
2006
Color-Encoded Image of 5-m Gridded Hill-Shaded Bathymetry From Long Island Sound off Milford, Connecticut (H11044_GEO_5MBATHY.TIF, Geographic)
1.0
remote-sensing image
Open-File Report
2005-1145
Woods Hole Coastal and Marine Science Center, Woods Hole, MA
U.S. Geological Survey, Coastal and Marine Geology Program
https://doi.org/10.3133/ofr20051145
http://pubs.usgs.gov/of/2005/1145/data/bathy/geotifs/h11044/geo/h11044_geo_5mbathy.zip
L.J. Poppe
S.D. Ackerman
E.F. Doran
A.L. Beaver
J.M. Crocker
P.T. Schattgen
2006
Interpolation of Reconnaissance Multibeam Bathymetry from North-Central Long Island Sound
1.0
Open-File Report
2005-1145
Reston, VA
U.S. Geological Survey
http://pubs.usgs.gov/of/2005/1145/
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 interpolated and regridded this NOAA bathymetric survey into a complete-coverage acoustic image of the sea floor. The image presented herein covers a 77.5 km square area of the sea floor in west-central Long Island Sound off Milford, Connecticut and was produced from data collected during NOAA survey H11044.
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.
To release a GeoTIFF image of the 5-m gridded bathymetry generated from NOAA survey H11044 in Long Island Sound off Milford, Connecticut.
2005
publication date
None planned
-73.128119
-72.936744
41.141151
41.023417
USGS Metadata Identifier
USGS:443b1d00-5137-46b2-a41f-53397d2cff2f
None
U.S. Geological Survey
USGS
National Oceanic and Atmospheric Administration
NOAA
Woods Hole Science Center
NOAA Ship RUDE
GeoTIFF
multibeam bathymetry
image
gridded
Survey H11044
Coastal and Marine Geology Program
WHSC
CMGP
pseudo-color image
shaded relief
hillshade image
ISO 19115 Topic Category
oceans
imageryBaseMapsEarthCover
USGS Thesaurus
sea-floor characteristics
marine geophysics
computational methods
geospatial datasets
multibeam sonar
None
Long Island Sound
Connecticut
Milford
U.S. East Coast
United States
Atlantic Ocean
North America
None
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.
U.S. Geological Survey
Larry Poppe
Geologist
mailing and physical address
384 Woods Hole Road
Woods Hole
MA
02543
USA
(508) 548-8700 x2314
(508) 457-2310
lpoppe@usgs.gov
http://pubs.usgs.gov/of/2005/1145/graphics/browse_graphics/h11044_geo_5mbathy.jpg
Overview image of the 5-m bathyetry from NOAA survey H11044
JPEG
Please acknowledge NOAA and the NOAA Ship RUDE as the originators of the data from which this data set was derived.
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.1.0.722
K.Y. McMullen
L.J. Poppe
V.F. Paskevich
E.F. Doran
M.S. Moser
E.B. Christman
A.J. Beaver
2005
Surficial Geologic Interpretation and Sidescan Sonar Imagery of the Sea Floor in West-Central Long Island Sound
1.0
Open-File Report
2005-1018
Reston, VA
U.S. Geological Survey
http://pubs.usgs.gov/of/2005/1018/
There are no attributes associated with a GeoTIFF image.
Information unavailable from original metadata.
All collected data were processed and used to produce an image of the interpolated and gridded dataset.
Navigation was by Differential GPS. Data is interpolated and gridded to 5 m, assume a horizontal positional accuracy of approximately 5 meters.
National Oceanic and Atmospheric Administration
Unpublished Material
H11044 Multibeam Bathymetry
1
DVD-ROM
2003
ground condition
h11044_1_5m_decimal_degrees_xyz.txt
Original gridded, but not interpolated data. This had resulted in areas of no data between many of the ship's tracks.
The bathymetry data were collected during 2003 as part of NOAA surveys H11044 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.
2004
h11044_1_5m_decimal_degrees_xyz.txt
National Oceanic and Atmospheric Administration
Crew of the NOAA Ship RUDE
mailing address
Atlantic Hydrographic Branch
439 West York Street
Norfolk
VA
23510
USA
unknown
The original multibeam data set, which is in ASCII comma-delimited text, did 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 5-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.
h11044_1_5m_decimal_degrees_xyz.txt
unknown
h11044_bathy5
Seth Ackerman
U.S. Geological Survey
GIS Specialist
mailing address
384 Woods Hole Road
Woods Hole
MA
02543
USA
(508) 548-8700 x2315
(508) 457-2310
sackerman@usgs.gov
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.
h11044_bathy5
2005
h11044_hlshd5
h11045_geo_5mbathy.tfw
Seth Ackerman
U.S. Geological Survey
GIS Specialist
mailing address
384 Woods Hole Road
Woods Hole
MA
02543
USA
(508) 548-8700 x2315
(508) 457-2310
sackerman@usgs.gov
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.
h11044_bathy5
h11044_hlshd5
2005
h11044_utm18_5m.tif
Seth Ackerman
U.S. Geological Survey
GIS Specialist
mailing address
384 Woods Hole Road
Woods Hole
MA
02543
USA
(508) 548-8700 x2315
(508) 457-2310
sackerman@usgs.gov
The Blue Marble Geographic Transformer was used to project the UTM zone 18 GeoTIFF image into geographic WGS84.
h11044_utm18_5m.tif
2005
h11044_geo_5mbathy.tif
Seth Ackerman
U.S. Geological Survey
GIS Specialist
mailing 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 2.9.32 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.). Moved quantitative horizontal positional accuracy information to horizontal accuracy report. Repaired contacted addresses. Moved planar resolution to geographic resolution and removed planar coordinate system. 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.
20160307
U.S. Geological Survey
VeeAnn A. Cross
Marine Geologist
mailing and physical address
384 Woods Hole Rd.
Woods Hole
MA
02543
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. Added a space to an originator name, 20210924.
20210924
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
Raster
Pixel
2615
3204
1
0.000045
0.000060
Decimal degrees
D_WGS_1984
WGS_1984
6378137.000000
298.257224
There are no attributes associated with a GeoTIFF image.
U.S. Geological Survey
Larry Poppe
U.S. Geological Survey
Geolgist
mailing and physical address
384 Woods Hole Road
Woods Hole
MA
02543
(508) 548-8700 x2314
(508) 457-2310
lpoppe@usgs.gov
Downloadable Data: Geotiff image of the color-encoded 5-m hill-shaded multibeam bathymetry of NOAA survey H11045 in geographic
Although these data have been used by the U.S. Geological Survey, U.S. Department of the Interior, no warranty expressed or implied is made by the U.S. Geological Survey as to the accuracy of the data.
Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
TIFF
Information unavailable from original metadata.
GeoTIFF
Archive file containing the GeoTIFF image, world file, projection information and metadata files.
zip archive
13.4
http://pubs.usgs.gov/of/2005/1145/data/bathy/geotifs/h11044/geo/h11044_geo_5mbathy.zip
http://pubs.usgs.gov/of/2005/1145/html/catalog.html
Data may be retrieved via any WWW browser.
DVD-ROM
4.75
Gbytes
UDF
None
This image is available as a GeoTIFF image with an accompanying world file. To utilize this data, the user must have an image viewer, image processing or GIS software package capable of importing a GeoTIFF image.
20211116
U.S. Geological Survey
Larry Poppe
Geologist
mailing and physical address
384 Woods Hole Road
Woods Hole
MA
02543
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