U.S. Geological Survey
U.S. Army Corps of Engineers
2017
Tracklines of a multibeam survey of the sea floor in the Historic Area Remediation Site in 1996 (polyline shapefile, geographic, WGS 84)
1.0
vector digital data
data release
DOI:10.5066/F74B2ZGX
Woods Hole Coastal and Marine Science Center, Woods Hole, MA
U.S. Geological Survey, Coastal and Marine Geology Program
https://doi.org/10.5066/F74B2ZGX
https://www.sciencebase.gov/catalog/item/588243d0e4b01192927da163
Bradford Butman
William W. Danforth
John E. Hughes Clarke
Richard P. Signell
2017
Bathymetry and backscatter intensity of the sea floor of the Historic Area Remediation Site in 1996, 1998, and 2000
1.0
data release
DOI:10.5066/F74B2ZGX
Reston, VA
U.S. Geological Survey
Suggested citation: Butman, Bradford, Danforth, W.W., Clarke, J.E.H., and Signell, R.P., 2017, Bathymetry and backscatter intensity of the sea floor of the Historic Area Remediation Site in 1996, 1998, and 2000: U.S. Geological Survey data release, https://doi.org/10.5066/F74B2ZGX.
https://doi.org/10.5066/F74B2ZGX
Surveys of the bathymetry and backscatter intensity of the sea floor of the Historic Area Remediation Site (HARS), offshore of New York and New Jersey, were carried out in 1996, 1998, and 2000 using a Simrad EM1000 multibeam echosounder mounted on the Canadian Coast Guard ship Frederick G. Creed. The objective of the multiple echosounder surveys was to map the bathymetry and surficial sediments over time as dredged material was placed in the HARS to remediate contaminated sediments. Maps derived from the multibeam surveys show sea-floor bathymetry, shaded-relief bathymetry, and backscatter intensity (a measure of sea-floor texture and roughness) at a spatial resolution of 3 meters. The area was mapped by the U.S. Geological Survey in cooperation with the U.S. Army Corps of Engineers and with support from the Canadian Hydrographic Service and the University of New Brunswick.
The navigation polyline shapefile records the trackline followed by the Canadian Coast Guard ship Frederick G. Creed in the 1996 survey of the Historic Area Remediation Site. The tracklines can be used to identify line spacing, trackline orientation, and the location of data collection. The 1996 survey was carried out along tracklines running north-south and spaced about 100 m apart. The attributes record the latitude, longitude, date, and time at the start of each line.
These tracklines were not included with the original release of the HARS data. Maps and interpretations of these data are available in Butman and others (2002), Butman (2002), and Butman and others (2003) (citations in cross references). Other datasets from the 1996 HARS survey, as well as datasets from surveys of the HARS in 1998 and 2000, may be found in Butman and others (2017) (see larger work citation).
19961123
19961127
ground condition
None planned
-73.886780
-73.812483
40.433337
40.350000
USGS Metadata Identifier
USGS:588243d0e4b01192927da163
none
tracklines
navigation
polyline shapefile
multibeam
sea floor
sea floor mapping
Simrad EM1000
Canadian Coast Guard ship (CCGS) Frederick G. Creed
WHCMSC field activity 1996-043-FA
Woods Hole Coastal and Marine Science Center (WHCMSC)
Coastal and Marine Geology Program (CMGP)
U.S. Geological Survey (USGS)
Canadian Hydrographic Service (CHS)
University of New Brunswick (UNB)
U.S. Army Corps of Engineers (USACE)
Open-File Report 00-503
ISO 19115 Topic Category
oceans
location
USGS Thesaurus
navigational data
marine geophysics
geospatial datasets
none
Historic Area Remediation Site (HARS)
Hudson Shelf Valley
New York Bight
Middle Atlantic Bight
New York
New Jersey
North Atlantic Ocean
none
1996
none
none
U.S. Geological Survey
Bradford Butman
mailing and physical address
Woods Hole Coastal and Marine Science Center
384 Woods Hole Road
Woods Hole
MA
02543
USA
508-548-8700 x2212
bbutman@usgs.gov
https://www.sciencebase.gov/catalog/file/get/588243d0e4b01192927da163/?name=Hars1996Nav_browse.jpg
Browse graphic of the tracklines of the multibeam survey.
JPEG
Microsoft Windows Vista Version 6.1 (Build 7601) Service Pack 1; ESRI ArcCatalog 9.3.1.4095
Butman, Bradford
Danforth, W.W.
Knowles, S.C.
May, Brian
Serrett, Laurie
2002
Seafloor topography and backscatter intensity of the Historic Area Remediation Site (HARS), offshore of New York, based on multibeam surveys conducted in 1996, 1998, and 2000
Open-File Report
00-503
Reston, VA
U.S. Geological Survey
https://pubs.usgs.gov/of/2000/of00-503/
Bradford Butman
2002
Mapping the sea floor of the Historic Area Remediation Site (HARS) offshore of New York City
Fact Sheet
FS-001-02
Reston, VA
U.S. Geological Survey
https://pubs.usgs.gov/fs/2002/fs001-02/
Butman, Bradford
Middleton, T.J.
Thieler, E.R.
Schwab, W.C.
2003
Topography, shaded-relief, and backscatter intensity of the Hudson Shelf Valley, Offshore of New York
Open-File Report
03-372
Reston, VA
U.S. Geological Survey
https://pubs.usgs.gov/of/2003/of03-372/
Butman, Bradford
Alexander, P. Soupy
Harris, C.K.
Traykovski, P.A.
ten Brink, M.B.
Lightsom, F.S.
Martini, M.A.
2003
Oceanographic observations in the Hudson Shelf Valley, December 1999 - April 2000: Data Report
Open-File Report
02-217
Reston, VA
U.S. Geological Survey
https://pubs.usgs.gov/of/2002/of02-217/
Clarke, J.H.
1998
SwathEd
New Brunswick, Canada
Ocean Mapping Group, University of New Brunswick
http://www.omg.unb.ca/~jhc/SwathEd.html
All navigation data were processed in the same manner.
This shapefile contains edited tracklines for the 1996 multibeam survey of the Historic Area Remediation Site. Other datasets from the 1996 HARS survey may be found in Butman and others (2017) (see larger work citation).
These data were navigated with a Differential Global Positioning System (DGPS) which is typically accurate to +/- 3 meters, horizontally. To qualitatively assess the horizontal accuracy of the three HARS surveys, the locations of 23 distinct features on the sea floor identified in the 1996, 1998, and 2000 shaded-relief images were compared. Offsets of features in the 1996 survey compared to the 1998 survey were typically 5 m or less, as expected when navigating with DGPS. Offsets of features in the 2000 survey compared to the 1998 survey were 10-20 m and to the north or south, the along-track direction of the survey. For 18 of the 23 features in the 2000 survey, offsets were to the north compared to the 1998 survey when the track in 2000 was to the south, and offsets were to the south compared to the 1998 survey when the track in 2000 was to the north. The offsets of the remaining 5 features, all surveyed on Julian Day 115, were in the direction of the survey track in 2000. The HARS surveys were run in a Zamboni pattern which resulted in blocks of adjacent survey lines running in the same direction; thus consistent offsets appear to shift these blocks north or south depending on the direction the lines were run. The cause of the offsets in the 2000 survey is unknown and no correction has been made for them.
Canadian Hydrographic Service
William W. Danforth
John E. Hughes Clarke
Unpublished Material
raw multibeam data
disc
19961123
19961127
ground condition
none
The multibeam data were collected with a Simrad EM1000 multibeam echosounder mounted on the Canadian Coast Guard ship Frederick G. Creed. The multibeam system utilizes 60 electronically-aimed receive beams spaced at intervals of 2.5 degrees that insonify a strip of sea floor up to 7.5 times the water depth. The horizontal resolution of the beam on the sea floor is approximately 10 % of the water depth. Vertical resolution is approximately 1 % of the water depth. Data were collected along tracklines spaced 5-7 times the water depth apart at a speed of 10-14 knots. The HARS was surveyed in a Zamboni pattern (for efficient turns at high speed) with lines running north-south. The Zamboni pattern yields blocks of southward-run lines adjacent to blocks of northward-run lines. The frequency of the sonar was 95 kHz. Sound velocity profiles were obtained and input into the Simrad processing system to correct for refraction. Navigation was by means of differential GPS. Operation of the Simrad EM1000 was carried out by hydrographers of the Canadian Hydrographic Service. The data were collected on Woods Hole Coastal and Marine Science Center field activity 1996-043-FA (https://cmgds.marine.usgs.gov/fan_info.php?fa=1996-043-FA).
A suite of processing software (called SwathEd) (Clarke, 1998; see cross reference), developed by the Ocean Mapping Group at the University of New Brunswick, Canada, was used to process the multibeam and navigation data. Navigation data were edited on-screen using the SwathEd routine jview to remove undesirable points, including turns at the ends of survey lines. Jview also rejects stray GPS fixes outside of the survey area, as set by the operator (see process steps for bathymetry in larger work citation).
1996
U.S. Geological Survey
William W. Danforth
mailing and physical address
Woods Hole Coastal and Marine Science Center
384 Woods Hole Road
Woods Hole
MA
02543
USA
508-548-8700 x2274
bdanforth@usgs.gov
1. ASCII navigation data collected by the DGPS receiver was reformatted to CSV (comma separated value) format using the UNIX awk utility. Point spacing along-track is defined by time. Navigation fixes are recorded at a 1-second interval for this trackline file.
2. Import the CSV file as points into ArcGIS using the Import XY data under the tools menu.
3. Export the point data to a shapefile by right clicking on the point data in the data view window and selecting the Export Data function.
4. Reformat the point shapefile into a line shapefile using the VAC Extras tool -> FeatConv -> Points to line v2
2016
U.S. Geological Survey
William W. Danforth
mailing and physical address
Woods Hole Coastal and Marine Science Center
384 Woods Hole Road
Woods Hole
MA
02543
USA
508-548-8700 x2274
bdanforth@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
Added keywords section with USGS persistent identifier as theme keyword.
20200807
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
Vector
String
70
0.000001
0.000001
Decimal degrees
D_WGS_1984
WGS_1984
6378137.000000
298.257224
Hars1996Nav
shapefile of tracklines for 1996 multibeam survey of the Historic Area Remediation Site
USGS
FID
Internal feature number.
ESRI
Sequential unique whole numbers that are automatically generated.
Shape
Feature geometry.
ESRI
Coordinates defining the features.
LineNum
Trackline number assigned by USGS
USGS
203
2238
line number
Lon
Longitude at start of line
USGS
-73.886323
-73.812395
decimal degrees
Lat
Latitude at start of line
USGS
40.432622
40.439575
decimal degrees
Year
Year at start of line
USGS
1996
1996
calendar year
JulianDay
Julian Day, the integer number representing the interval of time in days since January 1 of the year of collection
USGS
328
332
Julian day
Hour
Hour at the start of line (in GMT)
USGS
0
23
hour
Min
Minute at the start of line (in GMT)
USGS
1
59
minute
Sec
Second at the start of line (in GMT)
USGS
1.27
59.5
second
The navigation polyline shapefile records the trackline followed by the Canadian Coast Guard ship Frederick G. Creed in the 1996 survey of the Historic Area Remediation Site. The attributes are the USGS assigned line number and the latitude, longitude, and time (year, Julian day, hour, minute, second) at start of line. The 1996 HARS survey was assigned a block of line numbers beginning with 203. A second block of line numbers beginning with 2226 provide additional spatial coverage over the shallower portion of the HARS.
U.S. Geological Survey
U.S. Geological Survey - ScienceBase
mailing and physical address
Denver Federal Center
Building 810
Mail Stop 302
Denver
CO
80225
1-888-275-8747
sciencebase@usgs.gov
Hars2000Nav.zip: contains Hars2000Nav.shp and other files associated with a shapefile, browse graphic, and the FGDC-compliant metadata (CSDGM format).
Neither the U.S. Government, the Department of the Interior, nor the U.S. Geological Survey, nor the U.S. Army Corps of Engineers, 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. 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.
Shapefile
ArcGIS 9.3
Esri shapefile
Esri shapefile of navigation tracklines and associated metadata from a multibeam survey of the Historic Area Remediation Site carried out in 1996, compressed in a zip file
zip
1
https://www.sciencebase.gov/catalog/file/get/588243d0e4b01192927da163/?name=Hars1996Nav.zip
https://www.sciencebase.gov/catalog/file/get/588243d0e4b01192927da163
https://www.sciencebase.gov/catalog/item/588243d0e4b01192927da163
The network resources offer the options of downloading all the files, individual files, or accessing the landing page of the data.
none
The shapefile of navigation is compressed into a zip file (Hars2000Nav.zip). To use these data, the user must have software capable of uncompressing the zip file and ArcGIS or another GIS application package capable of viewing the data.
20200807
U.S. Geological Survey
Bradford Butman
mailing and physical address
Woods Hole Coastal and Marine Science Center
384 Woods Hole Road
Woods Hole
MA
02543
USA
508-548-8700 x2212
bbutman@usgs.gov
FGDC Content Standards for Digital Geospatial Metadata
FGDC-STD-001-1998
local time