U.S. Geological Survey
2015
PNG Images of chirp sub-bottom profiler data collected by the U.S. Geological Survey offshore of Fire Island, NY in 2011 (PNG Image Format)
1.0
raster digital data
data release
DOI:10.5066/F75X2704
Woods Hole Coastal and Marine Science Center, Woods Hole, Massachusetts
U.S. Geological Survey, Coastal and Marine Geology Program
https://doi.org/10.5066/F75X2704
https://cmgds.marine.usgs.gov/data/field-activity-data/2011-005-FA/
https://cmgds.marine.usgs.gov/data/field-activity-data/2011-005-FA/data/seismics/2011-005-FA_chimages.zip
Jane F. Denny
William C. Schwab
Wayne E. Baldwin
Emile Bergeron
Eric Moore
2015
High-resolution geophysical data collected offshore of Fire Island, New York in 2011, USGS Field Activity 2011-005-FA
1.0
data release
DOI:10.5066/F75X2704
Reston, VA
U.S. Geological Survey
https://doi.org/10.5066/F75X2704
The U.S. Geological Survey (USGS) mapped approximately 336 square kilometers of the lower shoreface and inner-continental shelf offshore of Fire Island, New York in 2011 using interferometric sonar and high-resolution chirp seismic-reflection systems. These spatial data support research on the Quaternary evolution of the Fire Island coastal system and provide baseline information for research on coastal processes along southern Long Island. For more information about the WHCMSC Field Activity, see https://cmgds.marine.usgs.gov/fan_info.php?fan=2011-005-FA.
PNG images of each seismic profile were generated in order to incorporate images of the seismic data into Geographic Information System (GIS) projects and data archives. These PNG images represent 2200 kilometers of chirp seismic data collected with an Edgetech Geo-Star FSSB sub-bottom profiling system and an SB-0512i towfish (0.5 - 12 kHz) during USGS field activity 2011-005-FA. The PNG format is universal and yields an easily viewable image of the seismic profiles. Corresponding trackline navigation is contained within a polyline shapefile (2011-005-FA_chirptrk.shp), shot-point locations are available in a point shapefile (2011-005-FA_chirp500sht.shp). (see: https://doi.org/10.5066/F75X2704)
20110521
20110605
ground condition during 20110521 - 20110605
None planned
-73.278147
-72.745661
40.749798
40.544405
USGS Metadata Identifier
USGS:5019a87f-b292-4ec9-909b-7109d7922433
None
USGS
U.S. Geological Survey
CMGP
Coastal and Marine Geology Program
WHCMSC
Woods Hole Coastal and Marine Science Center
Marine Geology
field activity number 2011-005-FA
sub-bottom profiling
seismic reflection
chirp
Edgetech 512i
M/V Scarlett Isabella
PNG
ISO 19115 Topic Category
oceans
geoscientificInformation
USGS Thesaurus
sub-bottom profiling
image collections
marine geophysics
None
North America
United States
New York
Fire Island
Fire Island National Seashore
none
Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey as the originator of the dataset.
Jane F. Denny
U.S. Geological Survey
Geologist
mailing and physical address
384 Woods Hole Road
Woods Hole
Massachusetts
02543-1598
USA
508-548-8700 x 2311
508-457-2310
jdenny@usgs.gov
https://cmgds.marine.usgs.gov/data/field-activity-data/2011-005-FA/data/seismics/2011-005-FA_chimages.png
Thumbnail image of chirp subbottom data collected by the U.S. Geological Survey on the inner-continental shelf offshore of Fire Island, NY, 2011.
PNG
Microsoft Windows Vista Version 6.1 (Build 7601) Service Pack 1; ESRI ArcCatalog 9.3.1.1850
William C. Schwab
Wayne E. Baldwin
Cheryl J. Hapke
Erika E. Lentz
Paul T. Gayes
Jane F. Denny
Jeffrey H. List
John C. Warner
2013
Geologic Evidence for Onshore Sediment Transport from the Inner Continental Shelf: Fire Island, New York
1.0
document
Journal of Coastal Research
Volume 29, Issue 3, pp. 526-544.
Florida, USA
Coastal Education and Research Foundation, Inc.
http://dx.doi.org/10.2112/JCOASTRES-D-12-00160.1
David S. Foster
Ann B. Swift
William C. Schwab
1999
Stratigraphic Framework Maps of the nearshore area of southern Long Island from Fire Island to Montauk Point, NY
1.0
document
Open-File Report
99-559
Reston, VA
U.S. Geological Survey
https://pubs.usgs.gov/of/1999/of99-559/
William C. Schwab
E. Robert Thieler
Jane F. Denny
William W. Danforth
Jenna C. Hill
2000
Seafloor sediment distribution off southern Long Island, New York
1.0
document
Open-File Report
00-243
Reston, VA
U.S. Geological Survey
https://pubs.usgs.gov/of/2000/of00-243/
W.C. Schwab
J.F. Denny
W.E. Baldwin
2014
Maps Showing Bathymetry and Modern Sediment Thickness on the Inner Continental Shelf Offshore of Fire Island, New York, Pre-Hurricane Sandy
1.0
document
Open File Report
2014-1203
Reston, VA
U.S. Geological Survey
This publication contains the backscatter image generated from data collected during WHCMSC field activity 2011-005-FA.
https://pubs.usgs.gov/of/2014/1203/
W.C. Schwab
W.E. Baldwin
J.F. Denny
2014
Maps Showing the Change in Modern Sediment Thickness on the Inner Continental Shelf Offshore of Fire Island, New York, Between 1996-97 and 2011
1.0
document
Open File Report
2014-1238
Reston, VA
U.S. Geological Survey
https://pubs.usgs.gov/of/2014/1238/
William C. Schwab
Wayne E. Baldwin
Jane F. Denny
Cheryl J. Hapke
Paul T. Gayes
Jeffrey H. List
John C. Warner
2014
Modification of the Quaternary stratigraphic framework of the inner-continental shelf by Holocene marine transgression: An example offshore of Fire Island, New York
1.0
document
Marine Geology
Volume 355
Amsterdam, Netherlands
Elsevier B.V.
http://dx.doi.org/10.1016/j.margeo.2014.06.011
Goff, J.A.
Flood, R.D.
Austin, J.A.
Schwab, W.C.
Christensen, B.
Browne, C.M.
Denny, J.F.
Baldwin, W.E.
2015
The impact of Hurricane Sandy on the shoreface and inner shelf of Fire Island, New York: Large bedform migration and limited erosion
1.0
document
Continental Shelf Research
v. 98, pp. 13-25
Amsterdam, Netherlands
Elsevier B.V.
http://dx.doi.org/10.1016/j.csr.2015.03.001
All subbottom data were collected during USGS cruise 2011-005-FA using an Edgetech SB-512i chirp subbottom profiler. Processed chirp seismic data (lines 14 - 92) were converted to PNG format for ease of seismic trace display. Quality control was conducted during processing.
Acquired chirp seismic data (Lines 14 - 92) were processed and PNG images produced. Only bathymetric data were collected for lines 1 -13, as outlined in the research plan.
The Edgetech SB-0512i was mounted on a catamaran sled and towed at the sea surface 51.5 m (lines l14f1 - l74f1) and 43.2 m (lines l75f1 - l92f1) astern of the M/V Scarlett Isabella. Position data were provided by a Differential Global Positioning System (DGPS) navigation receiver (F180 (lines l14f1 - l74f1) and BR2G (lines l75f1 - l92f1)). Layback navigation was generated to account for towfish position. Positional accuracy is assumed to be ± 10 m.
U.S. Geological Survey
Unpublished Material
Raw seismic data
disk
20110521
20110605
ground condition during 20110521 - 20110605
chirp images
Shallow geologic framework and surficial geology were interpreted from approximately 2200 trackline kilometers of chirp seismic-reflection profiles that were collected during U.S. Geological Survey field activity 2011-005-FA ( https://cmgds.marine.usgs.gov/fan_info.php?fan=2011-005-FA). Final, post-processed profiles were used to make the interpretations.
Survey: Survey lines were run at an average speed of 5 knots. Lines 14 through 27 were run at a 75-m line spacing to achieve full coverage of the seafloor with sonar systems in a priority area of interest in the nearshore, in water depths less than 15 meters. Lines 28 through 92 were run at a 150-m line spacing, with the exception of tie lines (lines 52 through 60, 65 through 67, 89 through 92), which were run at approximately a 2-km line spacing.
Seismic Data: Chirp seismic data were collected using an EdgeTech Geo-Star FSSB sub-bottom profiling system and an SB-0512i towfish (0.5-12 kHz), which was mounted on a catamaran and towed astern of the M/V Scarlett Isabella. Chesapeake Technologies' SonarWiz (v.5.03.0016) seismic acquisition software was used to control the Geo-Star topside unit, digitally log trace data in the SEG-Y Rev. 1 format (IEEE floating point), and record DGPS navigation coordinates to the SEG-Y trace headers (in arc seconds of Latitude and Longitude, multiplied by a scalar of 100). Data were acquired using a 0.25-s shot rate, a 5-ms pulse length, and a 0.5 to 8 kHz frequency sweep. Recorded trace lengths were approximately 200 ms (4340 samples/trace and .000046-s sample interval).
Processing Seismic Data: SIOSEIS (version 2010.2.25) was used to read SEG-Y files, renumber shots starting from one, and write out new SEG-Y files. The original shot numbers, which were assigned by SonarWiz sequentially over the duration of an acquisition session despite SEG-Y file changes, are preserved in the raw SEG-Y data.
Wayne E. Baldwin performed this and all subsequent process steps.
2011
Wayne E. Baldwin
U.S. Geological Survey
Geologist
mailing and physical address
384 Woods Hole Road
Woods Hole
MA
02543-1598
USA
508-548-8700 x2226
508-457-2310
wbaldwin@usgs.gov
Seismic Unix (version 4.2) was used to read renumbered SEG-Y files, write a Seismic Unix file, and extract SEG-Y trace header information, including shot number, longitude, latitude, year, Julian day, and time of day (UTC). Geographic coordinates (WGS84) were converted to UTM zone 18 coordinates (WGS84) using Proj (version 4.6.0). Header information from each SEG-Y file were saved to text files after an AWK (no version) filter was used to maintain the first and last shots, shots at multiples of 100, and shots with unique navigation coordinates. End shots and shots at multiples of 100 may not have unique navigation coordinates. Separate text files containing the first and last shots and even 500 shot intervals were also saved. A 500 shot interval was chosen because it corresponds to the annotation interval provided along the top of the seismic-reflection profile PNG images.
2011
Seismic Unix (version 4.2) was used to read all processed SEG-Y files and plot the data as 8-bit gray scale Postscript files using the Seismic Unix 'psimage' algorithm. All images were created with a horizontal scale of 200 traces per inch. The profiles contain 60 milliseconds of Two-Way Travel Time within an 12-inch vertical window, yielding approximately 5 milliseconds per inch. Postscript images were converted to PNG format using ImageMagick (version 6.6.1) The x-axis units of the images are shot number while the y-axis is two-way travel time in seconds.
2011
The online links to the data were updated to reflect the new server hosting the data. Additionally, other small edits could be made to the metadata, such as modifying http to https where appropriate. The metadata date (but not the metadata creator) was edited to reflect the date of these changes.
20170418
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
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
Jane F. Denny
U.S. Geological Survey
Geologist
mailing and physical address
384 Woods Hole Road
Woods Hole
Massachusetts
02543-1598
USA
508-548-8700 x 2311
508-457-2311
jdenny@usgs.gov
2011-005-FA_chimages.zip - this zip file contains 303 PNG files representing seismic-reflection profiles collected during WHCMSC field activity 2011-005-FA.
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.
PNG
1.0
Portable Network Graphics (PNG)
WinZip (version 14.0) file containing the chirp subbottom profiler PNG images collected by the USGS offshore of Fire Island, NY, 2011. This also includes associated metadata.
Use WinZip, 7zip, Peazip or pkUnzip
850
https://cmgds.marine.usgs.gov/data/field-activity-data/2011-005-FA/data/seismics/2011-005-FA_chimages.zip
https://doi.org/10.5066/F75X2704
https://cmgds.marine.usgs.gov/data/field-activity-data/2011-005-FA/
Data can be downloaded via the Internet
none
These data can be viewed with any PNG image viewing software.
20200908
Jane F. Denny
U.S. Geological Survey
Geologist
mailing and physical address
384 Woods Hole Road
Woods Hole
MA
02534-1598
USA
508-548-8700 x2311
508-457-2310
jdenny@usgs.gov
FGDC Content Standards for Digital Geospatial Metadata
FGDC-STD-001-1998
local time