U.S. Geological Survey
20170213
Bathymetric Data collected with Backpack and Wheel-mounted GPS
within and around the Wilderness Breach, Fire Island, New York,
(2014) in XYZ ASCII Text File Format
Tabular digital data
U.S. Geological Survey Data Series
DS 1034
St. Petersburg, FL
St. Petersburg Coastal and Marine Science Center
https://pubs.usgs.gov/ds/1034/ds1034_data.html
Timothy R. Nelson
Jennifer L. Miselis
Cheryl J. Hapke
Owen T. Brenner
Rachel E. Henderson
Billy J. Reynolds
Kathleen E. Wilson
20170213
Bathymetry data collected in October 2014 From Fire Island, New York—The Wilderness Breach, Shoreface, and Bay
U.S. Geological Survey Data Series
DS 1034
St. Petersburg, FL
St. Petersburg Coastal and Marine Science Center
https://doi.org/10.3133/ds1034
Scientists from the U.S. Geological Survey St. Petersburg Coastal
and Marine Science Center in St. Petersburg, Florida, conducted a
bathymetric survey of Fire Island, New York, from October 5 to 10,
2014. The U.S. Geological Survey is involved in a post-Hurricane
Sandy effort to map and monitor the morphologic evolution of the
wilderness breach, which formed in October 2012 during Hurricane
Sandy, as part of the Hurricane Sandy Supplemental Project GS2-2B.
During this study, bathymetry data were collected, using single-beam
echo sounders and global positioning systems mounted to personal
watercraft, along the Fire Island shoreface and within the
wilderness breach, Fire Island Inlet, Narrow Bay, and Great South
Bay east of Nicoll Bay. Additional bathymetry and elevation data
were collected using backpack and wheel-mounted global positioning
systems along the subaerial beach (foreshore and backshore), and
flood shoals and shallow channels within the wilderness breach and
adjacent shoreface.
To determine the change Hurricane Sandy caused in the shoreface
morphology and breach evolution at Fire Island, New York, USA,
scientists from the U.S. Geological Survey (USGS) St. Petersburg
Coastal and Marine Science Center (SPCMSC) conducted a bathymetric
survey of Fire Island from October 5 to 10, 2014. The objectives of the
data collection effort were to map the morphology of the wilderness
breach and adjacent shoreface, Fire Island Inlet, Narrow Bay, and
Great South Bay east of Nicoll Bay the shoreface as part of the USGS
Hurricane Sandy Supplemental Project GS2-2B. This dataset,
201410_Ground_Based_XYZ.zip, consists of elevation data collected
with a backpack and wheel-mounted global positioning systems (GPS) from the subaerial
beach profile (foreshore and backshore), subaerial and shallow flood
shoals.
20141005
20141010
ground condition
None planned
-72.8957208645575
-72.8709539592071
40.7350409912943
40.7237019865522
USGS Metadata Identifier
USGS:0a66bb4c-b841-4050-af47-e5950b834516
ISO 19115 Topic Category
elevation
oceans
geoscientificInformation
imageryBaseMapsEarthCover
General
marine geology
bathymetry
mapping
backpack GPS
geophysical
breaches
shoals
barrier island
U.S. Geological Survey
USGS
Coastal and Marine Geology Program
CMGP
St. Petersburg Coastal and Marine Science Center
SPCMSC
Hurricane Sandy Supplemental: Fire Island
Hurricane Sandy
2014-325-FA
Geographic Names Information System (GNIS)
United States
US
New York
NY
Fire Island
Fire Island National Seashore
Otis Pike Fire Island High Dune Wilderness
Bellport Bay
Fire Island Inlet
Great South Bay
Narrow Bay
Atlantic Ocean
General
the wilderness breach
General
2014
The U.S. Geological Survey requests that it be referenced as the
originator of this dataset in any future products or research derived
from these data.
These data should not be used for navigational purposes.
Timothy R. Nelson
U.S. Geological Survey
mailing and physical address
600 4th Street South
St. Petersburg
FL
33701-4846
USA
727-502-8098
727-502-8182
trnelson@usgs.gov
Timothy R. Nelson
Jennifer L. Miselis
Cheryl J. Hapke
Kathleen E. Wilson
Rachel E. Henderson
Owen T. Brenner
Billy J. Reynolds
Mark E. Hansen
20170213
Coastal Bathymetry Data Collected in June 2014 from Fire Island, New York: the Wilderness Breach and Shoreface
U.S. Geological Survey Data Series
DS 1034
St. Petersburg, FL
St. Petersburg Coastal and Marine Science Center
https:\\doi.org/10.313/ds1007
The accuracy of the data is determined during data collection. This
dataset is derived from a single field survey using identical
equipment, setup procedures, and staff; therefore, the dataset is internally
consistent. Methods are employed to maintain data collection
consistency. During setup, each piece of equipment is isolated to
obtain internal and external offset measurements with respect to the
survey mount. All the critical measurements are recorded manually
and digitally entered into their respective programs. For backpack
collected elevations, the antenna height relative to the ground was
measured for the surveyor in a walking stride position and accounted
for during post-processing. For the wheel-mount collected
elevations, the antenna height relative to the ground was 2 meters
and accounted for during post-processing.
The U.S. Geological Survey St. Petersburg Coastal and Marine Science
Center collected shallow water bathymetric data in the wilderness
breach, Bellport Bay, Narrow Bay, Great South Bay east of Nicoll Bay,
Fire Island Inlet, and the ocean shoreface within approximately 2.5
kilometers (km) of Wilderness Breach. Backpack-collected GPS was
collected over subaerial and shallow flood shoals. Wheel-mounted GPS
was collected on the subaerial beach. This zip archive contains the
post-processed backpack and wheel-mounted (ground based) GPS data (x,
y, z) from October 2014 that were acquired during a single field
survey.
This is a complete, post-processed x,y,z bathymetric data point file
acquired with a backpack and wheel-mounted GPS system within and
around the wilderness breach, Fire Island, New York.
The GPS antenna and receiver acquisition configuration used at the
base station was duplicated on the survey mount (rover). The
base receiver and the rover receiver recorded their positions
concurrently at 10 hertz (Hz) recording intervals throughout the survey.
All processed measurements were referenced to the base station
coordinates. All static base station GPS sessions were submitted
for processing to the Online Positioning User Service (OPUS),
which was created by the National Oceanic and Atmospheric
Administration/National Geodetic Survey (NOAA/NGS). OPUS results
provided an error measurement for each daily solution with a
horizontal accuracy estimated as 0.007 m root mean squared (RMS).
The combined horizontal error is assumed to be at most half of the
vertical offset.
0.068 m
Static GPS data were processed using NOAA/NGS OPUS software and
kinematic GPS data were processed with GrafNav v8.50 software by
Novatel.
The GPS antenna and receiver acquisition configuration used at the
base station was duplicated on the survey mount (rover). The
base receiver and the rover receiver recorded their positions
concurrently at 10 Hz recording intervals throughout the survey.
All processed measurements are referenced to the base station
coordinates. OPUS results provided an error measurement for each
daily solution. Applying these error measurements, the vertical
accuracy of the base station was estimated to be 0.007 m root mean
squared (RMS). The kinematic (rover) trajectories were processed
using GrafNav v8.50 software by Novatel, Inc. Occurrences where a
backpack and/or wheel-mounted GPS trackline crossed a line it previously surveyed were
evaluated to determine vertical error. The combined vertical error
from base station coordinate solutions and rover trajectories was
0.125 m.
0.125 m
Static GPS data were processed using NOAA/NGS OPUS software and kinematic GPS data were processed with GrafNav v8.50 software by Novatel.
GPS Acquisition: Horizontal and vertical positioning of each
vessel and backpack was were collected determined using a
base-rover configuration. Data were recorded at 10 Hertz (Hz)
using Ashtech ProFlex™ 500 Global Navigation Satellite System
(GNSS) receivers with Thales choke ring antennas. Three stationary
base stations (REST, VC, and U374) were occupied during the
surveys. The stationary base at published NGS benchmark U374
(Permanent Identification number (PID#) KU0206) was equipped with
an Inmarsat Broadband Global Area Network (BGAN) satellite uplink
system for remote monitoring of the base station. U374
consisted of an Ashtech Proflex 500 GNSS receiver and an Ashtech
choke ring antenna with a vertical offset of 1.24 meters (m). GPS
data acquired by the PWCs, backpack, wheel-mount, and the REST and
VC base stations were downloaded at the end of each survey day. A
small segment of the U374 data was downloaded via the BGAN network
nightly to ensure the system was operating properly. Reference
station coordinates were verified with Continuously Operating
Reference Stations (CORS) stations using OPUS,
(http://www.ngs.noaa.gov/OPUS/). OPUS computed reference positions
had a vertical error of 0.007 m and horizontal errors of 0.8 cm
and 0.6 cm for East-West and North-South, respectively.
2014
U.S. Geological Survey St. Petersburg Coastal and Marine Science Center
Billy J. Reynolds
Engineering Technician
mailing and physical address
600 4th St. S
Saint Petersburg
FL
33701
USA
727-502-8067
727-502-8181
breynolds@usgs.gov
Backpack GPS Acquisition: Elevation data were collected from
shallow flood shoals and channels, using a SECO GPS backpack
containing an Ashtech Z-Xtreme receiver with Ashtech Marine
antennas attached to a pole extending above the head of the
surveyor. Positions were recorded at 10 Hz. The elevation of the
antenna relative to the ground was measured for the surveyor in a
walking stride position (2.112 m). The surveyors did not follow a
pre-defined path but collected data over as much of the subaerial
and shallow shoals as possible during low-tide.
2014
U.S. Geological Survey St. Petersburg Coastal and Marine Science Center
Owen T. Brenner
Geologist
mailing and physical address
600 4th St. S
Saint Petersburg
FL
33701
USA
727-502-8085
727-502-8182
obrenner@usgs.gov
Wheel-Mounted GPS Acquisition: A wheel-mounted GPS system
containing an Ashtech Z-Xtreme receiver with Ashtech Marine
antennas was used to record elevations and positions at 10 Hz. The
elevation of the antenna relative to the ground was fixed at 2 m. The system collected data along the approximate mean high
water line, along pre-defined transects, and additional data on
the subaerial beach.
2014
U.S. Geological Survey St. Petersburg Coastal and Marine Science Center
Owen T. Brenner
Geologist
mailing and physical address
600 4th St. S
Saint Petersburg
FL
33701
USA
727-502-8085
727-502-8182
obrenner@usgs.gov
Ground-Based Differentially Corrected Navigation Processing: GPS
data points were post-processed using a differential correction
derived from the base/rover setup. The base station coordinates
were imported into GrafNav version 8.5 (Waypoint Product Group)
and the GPS data from the backpack and wheel-mounted systems were
processed to the concurrent GPS session data at the base stations.
The horizontal and vertical coordinates of the ground-based data
were saved in North American Datum of 1983 (NAD83) and North
American Vertical Datum of 1988 (NAVD88) and exported as American
Standard Code for Information Interchange (ASCII) files.
2014
U.S. Geological Survey St. Petersburg Coastal and Marine Science Center
Billy J. Reynolds
Engineering Technician
mailing and physical address
600 4th St. S
Saint Petersburg
FL
33701
USA
727-502-8067
727-502-8181
breynolds@usgs.gov
Ground-Based GPS Processing: Using ArcGIS, position and elevation
of the ground based data were analyzed for instances when the
surveyor was either sitting, removing the backpack, being
transported between shoals on a personal watercraft, or tilted the
wheel horizontally. Once all extraneous data points were removed,
the remaining data were saved as an ASCII file.
2014
U.S. Geological Survey St. Petersburg Coastal and Marine Science Center
Owen T. Brenner
Geologist
mailing and physical address
600 4th St. S
Saint Petersburg
FL
33701
USA
727-502-8085
727-502-8182
obrenner@usgs.gov
Ground-Based Uncertainty Calculation: Backpack and wheel GPS
elevation errors were calculated by computing the vertical
differences at crossings occurring at least 1 minute apart. Using
Matlab, the calculated RMS error was 12.5 cm. Elevation
differences between the ground-based data points and single-beam
data points indicate the backpack elevations were 5 cm higher than
elevations recorded using PWCs. Given the high degree of
uncertainty arising from the backpack surveyor striding over a
subaqueous shoal surface and the tilting of the wheel-mount, the
ground-based data were adjusted to the PWC elevation at the
crossings. The adjusted positions, elevation, and date of sampling
were saved as an ASCII file.
2015
201410_Ground_Based_XYZ.csv
U.S. Geological Survey St. Petersburg Coastal and Marine Science Center
Timothy R. Nelson
Geologist
mailing and physical address
600 4th St. S
Saint Petersburg
FL
33701
USA
727-502-8098
727-502-8182
trnelson@usgs.gov
Added keywords section with USGS persistent identifier as theme keyword.
20201013
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
Point
57,813
Universal Transverse Mercator
18
0.9996
-75
0.0
500000
0.0
row and column
1.000000
1.000000
meters
North American Datum of 1983
Geodetic Reference System 80
6378137
298.257
North American Vertical Datum 1988
0.01 m
meter
Attribute values
201410_Ground_Based_XYZ.csv
Comma delimited xyz file
U.S. Geological Survey
Easting_m
NAD83 UTM x-axis coordinate (Zone 18)
U.S. Geological Survey
676749
679791
Meter
Northing_m
NAD83 UTM y-axis coordinate (Zone 18)
U.S. Geological Survey
4509682
4511725
Meter
Elev_NAVD88_m
z-value (elevation) in NAVD88
U.S. Geological Survey
-1.743
5.908
Meter
Date
Date and Time of Sample Collection
U.S. Geological Survey
20141006
20141008
Comma delimited xyz file containing UTM X, UTM Y locations and corresponding Z elevation value, all in meters.
Ground-based GPS point data for Fire Island, NY, created from data collected between October 5, 2014 and October 10, 2014.
U.S. Geological Survey, St Petersburg Coastal and Marine Science Center, St. Petersburg, FL
Timothy R. Nelson
mailing and physical address
600 4th Street South
St. Petersburg
FL
33701
USA
727-502-8098
727-502-8182
trnelson@usgs.gov
U.S. Geological Survey DS 1034
Neither the U.S. Government, the Department of the Interior, nor the
USGS, 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.
ASCII
ZIP
0.441
http://pubs.usgs.gov/ds/1034/downloads/201410_Ground_Based_XYZ.zip
None
20210922
20170105
U.S. Geological Survey
Timothy R. Nelson
Geologist
mailing and physical address
600 4th Street South
St. Petersburg
FL
33701
USA
727-502-8098
727-502-8182
trnelson@usgs.gov
Content Standard for Digital Geospatial Metadata
FGDC-STD-001-1998