Citation:
Citation_Information:
Originator: Arnell S. Forde
Originator: Nancy T. DeWitt
Originator: Jake J. Fredericks
Originator: Jennifer L. Miselis
Publication_Date: 20190226
Title:
Archive of Chirp Subbottom Profile Data Collected in June 2018 From Fire Island, New York
Geospatial_Data_Presentation_Form: multimedia presentation
Series_Information:
Series_Name: U.S. Geological Survey Data Release
Issue_Identification: doi:10.5066/P9Q8TVHH
Publication_Information:
Publication_Place: St. Petersburg, Florida
Publisher:
U.S. Geological Survey - St. Petersburg Coastal and Marine Science Center
Online_Linkage: https://doi.org/10.5066/P9Q8TVHH
Description:
Abstract:
Researchers from the U.S. Geological Survey (USGS) conducted a long-term, coastal morphologic-change study at Fire Island, New York, prior to and after Hurricane Sandy impacted the area in October 2012. The Fire Island Coastal System Change project (
https://coastal.er.usgs.gov/fire-island/) objectives include understanding the morphologic evolution of the barrier island system on a variety of time scales (months to centuries) and resolving storm-related impacts, post-storm beach response, and recovery. From June 2-16, 2018, scientists from the USGS St. Petersburg Coastal and Marine Science Center conducted geophysical surveys on Fire Island to characterize and quantify spatial variability in the subaerial geology with the goal of subsequently integrating onshore geology with other surf zone and nearshore datasets. This publication serves as an archive of high-resolution subbottom profile images, survey trackline map, navigation files, geographic information system (GIS) data, and formal Federal Geographic Data Committee (FGDC) metadata. Additionally, in April 2016, geophysical and sediment sampling data were collected as part of the Fire Island project. The ground penetrating radar and vibracore datasets are available from Forde and others, 2018; Buster and others, 2018; and Bernier and others, 2018.
Purpose:
To archive all digital chirp subbottom profile data and associated files collected during Field Activity Number 2018-322-FA. Additional survey and data details are available from the Coastal and Marine Geoscience Data System (CMGDS) at,
https://cmgds.marine.usgs.gov/fan_info.php?fan=2018-322-FA.
Supplemental_Information:
Chirp systems use a signal of continuously varying frequency; the system used during this survey produces high-resolution, shallow-penetration (typically less than 75-milliseconds [ms]) profile images of sub-seafloor stratigraphy. The towfish contains a transducer that transmits and receives acoustic energy and is typically towed 1-2 meters (m) below the sea's surface. As transmitted acoustic energy intersects density boundaries, such as the seafloor or sub-surface sediment layers, energy is reflected toward the transducer, received, and recorded by a PC-based seismic acquisition system. This process is repeated at regular intervals (for example, 0.125 seconds [s]) and returned energy is recorded for a specific duration (for example, 50 ms). In this way, a two-dimensional (2D) vertical image of the shallow geologic structure beneath the towfish is produced.
The seismic source utilized during 2018-322-FA consisted of an EdgeTech SB-512i towfish running Discover version 4.09 acquisition software, towed by the research vessel (R/V) Sallenger, approximately 20 m behind the global positioning system (GPS) reference point. The data were acquired using a frequency sweep between 0.5 and 12 kilohertz (kHz), a 43 kHz sample frequency, and recording length was approximately 66.5 ms. Based on survey speeds of 3.5-4.5 knots, the shot spacing was approximately 0.450 m. The printable profiles provided are chirp subbottom profile images that were processed using Seismic Unix (SU) software. Survey Field Activity Collection System (FACS) and geophysical logs are also provided as supplemental information in the download file, 2018-322-FA_logs.zip.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20180602
Ending_Date: 20180616
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -73.323953
East_Bounding_Coordinate: -72.858925
North_Bounding_Coordinate: 40.729458
South_Bounding_Coordinate: 40.607681
Keywords:
Theme:
Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:0c2d19d8-ad43-4cc3-8530-f020127ef559
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: geoscientificInformation
Theme_Keyword: oceans
Theme:
Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: sub-bottom profiling
Theme_Keyword: marine geology
Theme_Keyword: geology
Theme_Keyword: coastal processes
Theme:
Theme_Keyword_Thesaurus: Data Categories for Marine Planning
Theme_Keyword: distributions
Theme_Keyword: physical habitats and geomorphology
Theme:
Theme_Keyword_Thesaurus: Marine Realms Information Bank (MRIB) Keywords
Theme_Keyword: seismic reflection profiling
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: Seismic reflection
Theme_Keyword: Chirp
Theme_Keyword: Society of Exploration Geophysicists
Theme_Keyword: SEG Y
Theme_Keyword: Barrier Island Mapping
Theme_Keyword: 2018-322-FA
Place:
Place_Keyword_Thesaurus: Geographic Names Information System (GNIS)
Place_Keyword: United States of America
Place_Keyword: New York
Place_Keyword: Fire Island
Place_Keyword: Fire Island National Seashore
Place_Keyword: Wilderness Breach
Place_Keyword: Robert Moses Park
Access_Constraints: None. These data are held in the public domain.
Use_Constraints:
Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. The U.S. Geological Survey requests to be acknowledged as originator of the data in future products or derivative research.
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Arnell S. Forde
Contact_Organization: U.S. Geological Survey
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing and physical
Address: 600 4th Street South
City: Saint Petersburg
State_or_Province: FL
Postal_Code: 33701
Country: USA
Contact_Voice_Telephone: (727) 502-8000
Contact_Electronic_Mail_Address: aforde@usgs.gov
Data_Set_Credit:
Funding and (or) support for this study was provided by the USGS Coastal and Marine Geology Program. The authors thank Andy Farmer of Cherokee Nation Technologies and Anastasios Stathakopoulos of the USGS for their assistance in data collection and piloting the R/V Sallenger. This document was improved by scientific and metadata reviews from Stephen Bosse and Chelsea Stalk of Cherokee Nation Technologies.
Native_Data_Set_Environment:
Environment as of Metadata Creation: Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Environmental Systems Research Institute (Esri) ArcGIS 10.3.1.4959
Cross_Reference:
Citation_Information:
Originator: Cohen, J.K., and Stockwell, J.W., Jr., CWP/SU
Publication_Date: 2010
Title:
Seismic Un*x Release No. 44: An open source software package for seismic research and processing
Publication_Information:
Publication_Place: Golden, Colorado
Publisher: Center for Wave Phenomena, Colorado School of Mines
Online_Linkage: https://github.com/JohnWStockwellJr/SeisUnix
Cross_Reference:
Citation_Information:
Originator: Arnell S. Forde
Originator: Julie C. Bernier
Originator: Jennifer L. Miselis
Publication_Date: 20180210
Title:
Archive of Ground Penetrating Radar and Differential Global Positioning System Data Collected in April 2016 from Fire Island, New York
Geospatial_Data_Presentation_Form: multimedia presentation
Series_Information:
Series_Name: U.S. Geological Survey Data Release
Issue_Identification: doi:10.5066/F7P84B1P
Publication_Information:
Publication_Place: St. Petersburg, Florida
Publisher:
U.S. Geological Survey - St. Petersburg Coastal and Marine Science Center
Online_Linkage: https://doi.org/10.5066/F7P84B1P
Cross_Reference:
Citation_Information:
Originator: Arnell S. Forde
Originator: Julie C. Bernier
Originator: Jennifer L. Miselis
Publication_Date: 20180210
Title:
Ground Penetrating Radar and Differential Global Positioning System Data Collected in April 2016 from Fire Island, New York
Series_Information:
Series_Name: U.S. Geological Survey Data Series
Issue_Identification: 1078
Publication_Information:
Publication_Place: St. Petersburg, FL
Publisher: U.S. Geological Survey
Online_Linkage: https://doi.org/10.3133/ds1078
Cross_Reference:
Citation_Information:
Originator: Noreen A. Buster
Originator: Julie C. Bernier
Originator: Owen T. Brenner
Originator: Kyle W. Kelso
Originator: Thomas M. Tuten
Originator: Jennifer L. Miselis
Publication_Date: 2018
Title:
Sediment Data from Vibracores Collected in 2016 from Fire Island, New York
Geospatial_Data_Presentation_Form: Multimedia presentation
Series_Information:
Series_Name: U.S. Geological Survey Data Series
Issue_Identification: DS 1100
Publication_Information:
Publication_Place: St. Petersburg, FL
Publisher: U.S. Geological Survey
Online_Linkage: https://doi.org/10.3133/ds1100
Cross_Reference:
Citation_Information:
Originator: Julie C. Bernier
Originator: Noreen A. Buster
Originator: Owen T. Brenner
Originator: Kyle W. Kelso
Originator: Thomas M. Tuten
Originator: Jennifer L. Miselis
Publication_Date: 2018
Title:
Archive of Sediment Data from Vibracores Collected in 2016 from Fire Island, New York
Geospatial_Data_Presentation_Form: Multimedia presentation
Online_Linkage: https://doi.org/10.5066/F7FN15GX