2019-333-FA_shots: Digital Chirp Subbottom Profile Shotpoint Data Collected During USGS Field Activity Number 2019-333-FA Offshore of the Rockaway Peninsula, New York, September–October 2019

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Metadata:

Identification_Information
Data_Quality_Information
Spatial_Data_Organization_Information
Spatial_Reference_Information
Entity_and_Attribute_Information
Distribution_Information
Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: Arnell S. Forde
Publication_Date: 20210525
Title:

2019-333-FA_shots: Digital Chirp Subbottom Profile Shotpoint Data Collected During USGS Field Activity Number 2019-333-FA Offshore of the Rockaway Peninsula, New York, September–October 2019

Geospatial_Data_Presentation_Form: Vector Digital Dataset (Point)
Larger_Work_Citation:

Citation_Information:

Originator: Arnell S. Forde
Originator: Emily A. Wei
Originator: Nancy T. DeWitt
Originator: Jennifer L. Miselis
Publication_Date: 20210525
Title:

Archive of Chirp Subbottom Profile Data Collected in 2019 From Rockaway Peninsula, New York

Series_Information:

Series_Name: U.S. Geological Survey data release
Issue_Identification: doi:10.5066/P9ZO8QKJ

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/P9ZO8QKJ

Description:

Abstract:

From September 27 through October 5, 2019, the U.S. Geological Survey (USGS) conducted geophysical surveys to investigate the geologic controls on barrier island evolution and sediment transport offshore of the Rockaway Peninsula, New York. This shapefile represents a point dataset of field activity number (FAN) 2019-333-FA chirp subbottom profile 1,000-shot-interval locations.

Purpose:

To aid in the registering of digital chirp subbottom profile data collected during USGS FAN 2019-333-FA.

Supplemental_Information:

Additional survey and data details are available from the USGS Coastal and Marine Geoscience Data System (CMGDS) at, https://cmgds.marine.usgs.gov/fan_info.php?fan=2019-333-FA and in the Field Activity Collection System (FACS) and geophysical logs, which are included in the download file, 2019-333-FA_logs.zip (Forde and others, 2021).

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20190927
Ending_Date: 20191005

Currentness_Reference: ground condition

Status:

Progress: Complete
Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -73.9377
East_Bounding_Coordinate: -73.7540
North_Bounding_Coordinate: 40.5892
South_Bounding_Coordinate: 40.5318

Keywords:

Theme:

Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:d918121c-59a3-4136-957e-3730f67a8b6a

Theme:

Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: geoscientificInformation
Theme_Keyword: oceans
Theme_Keyword: location

Theme:

Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: sub-bottom profiling
Theme_Keyword: marine geology
Theme_Keyword: geology
Theme_Keyword: coastal processes
Theme_Keyword: navigational data
Theme_Keyword: geospatial datasets

Theme:

Theme_Keyword_Thesaurus: None
Theme_Keyword: 1,000-shot-interval locations
Theme_Keyword: barrier island mapping
Theme_Keyword: seismic reflection
Theme_Keyword: 2019-333-FA
Theme_Keyword: chirp

Place:

Place_Keyword_Thesaurus: Common Geographic Areas
Place_Keyword: Far Rockaway
Place_Keyword: New York
Place_Keyword: North Atlantic

Access_Constraints: None
Use_Constraints:

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: St. 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:

Data collection and processing were performed by Nancy DeWitt, Jennifer Miselis, Emily Wei, and Arnell Forde of the USGS St. Petersburg Coastal and Marine Science Center.

Native_Data_Set_Environment:

Environment as of Metadata Creation: Microsoft Windows 10 Version 6.2 (Build 9200); Environmental Systems Research Institute (Esri) ArcGIS 10.6.0.8321 (Build 8321).

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

The validity or accuracy of marine subbottom profiles is highly qualitative and depends on equipment and operating condition variables. Visual inspection of the images rendered from the data did not show any major anomalies.

Logical_Consistency_Report:

This dataset is from one field activity with consistent instrument calibrations.

Completeness_Report:

A total of 74 seismic lines were collected during this field activity. e0021_1955 was a partial line containing no usable data, so it was excluded from this data release.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

Both subbottom and bathymetry data were collected aboard a towed seismic sled, which was outfitted with a Spectra Precision SP90M GPS receiver (to collect position information) and a single-beam echosounder. Differential positioning was obtained through post-processing the base station (established on USGS benchmark RIIS) data to the rover located on the sled. As the subbottom profile data were acquired, the position of the vessel was continuously determined by an Ashtech Proflex 500 unit with a global navigation satellite system antenna. Positions from the Proflex were recorded and written to the seismic trace headers every second (s). During subbottom processing, vessel coordinates previously saved to the seismic headers were replaced with post-processed GPS. The approximately 14-m offset between the chirp and GPS antenna has been accounted for in the comma-delimited American Standard Code for Information Interchange (ASCII) navigation files and trackline map.

Lineage:

Process_Step:

Process_Description:

Navigation files were extracted from the seismic trace headers using Seismic Unix release 44 software, processed with PROJ.5.1.0 software to generate Universal Transverse Mercator (UTM) coordinates from latitude and longitude coordinates (World Geodetic System of 1984, WGS84), and then saved as ASCII text files in comma-separated values (CSV) format.

Process_Date: 20210204
Process_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: St. Petersburg
State_or_Province: FL
Postal_Code: 33701
Country: USA

Contact_Voice_Telephone: 727-502-8000
Contact_Electronic_Mail_Address: aforde@usgs.gov

Process_Step:

Process_Description:

The reformatted text files were imported into Esri ArcMap 10.6 software to produce a geographic representation of the shotpoint data collected within the survey area. A 1,000-shot-interval point shapefile was generated to correlate shot locations on the trackline map with evenly spaced 1,000-shot index markers along the top of the printable profile images.

Process_Date: 20210204
Process_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: St. Petersburg
State_or_Province: FL
Postal_Code: 33701
Country: USA

Contact_Voice_Telephone: 727-502-8000
Contact_Electronic_Mail_Address: aforde@usgs.gov

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: Entity point
Point_and_Vector_Object_Count: 381

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Geographic:

Latitude_Resolution: 0.0197459653
Longitude_Resolution: 0.0258687369
Geographic_Coordinate_Units: Decimal degrees

Geodetic_Model:

Horizontal_Datum_Name: WGS_1984
Ellipsoid_Name: WGS_84
Semi-major_Axis: 6378137.0
Denominator_of_Flattening_Ratio: 298.257223563

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: 2019-333-FA_shots.shp Attribute Table
Entity_Type_Definition:

Table containing attribute information associated with the dataset.

Entity_Type_Definition_Source: U.S. Geological Survey

Attribute:

Attribute_Label: FID
Attribute_Definition: Internal feature number.
Attribute_Definition_Source: Esri
Attribute_Domain_Values:

Unrepresentable_Domain:

Sequential unique whole numbers that are automatically generated.

Attribute:

Attribute_Label: Shape
Attribute_Definition: Feature geometry.
Attribute_Definition_Source: Esri
Attribute_Domain_Values:

Unrepresentable_Domain: Coordinates defining the features.

Attribute:

Attribute_Label: UTMX
Attribute_Definition: UTM-X easting coordinate
Attribute_Definition_Source: Universal Transverse Mercator (WGS 1984, Zone 18)
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 589957.423
Range_Domain_Maximum: 605441.642

Attribute:

Attribute_Label: UTMY
Attribute_Definition: UTM-Y northing coordinate
Attribute_Definition_Source: Universal Transverse Mercator (WGS 1984, Zone 18)
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 4487339.322
Range_Domain_Maximum: 4493884.236

Attribute:

Attribute_Label: Line
Attribute_Definition: Trackline name
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:

Unrepresentable_Domain:

The naming convention used for each subbottom line is as follows: exy_bp_mod, where 'e' means the seismic traces were output as an envelope, 'x' is an 8-digit number indicating a specific trackline (for example, 0002_1609), 'y' is a letter (such as, a or b) representing a new line if recording was prematurely terminated or reran for quality or acquisition problems, and '_bp_mod' denotes that the seismic data were bandpass filtered and modified to use post-processed GPS coordinates for navigation. Line numbers were automatically assigned by the chirp topside unit during data acquisition and are composed of a 4-digit Hypack trackline number and a 4-digit timestamp corresponding to the line's start time. There are four transit lines (etransit_to_13_bp_mod, etransit_to_beach_bp_mod, eTransitlogJD278_bp_mod, and e20190902155831_bp_mod) whose file names were manually entered and therefore do not follow the aforementioned convention.

Attribute:

Attribute_Label: Shot
Attribute_Definition: Shotpoint number
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1000
Range_Domain_Maximum: 37000

Attribute:

Attribute_Label: Lon
Attribute_Definition: Longitude
Attribute_Definition_Source: World Geodetic System of 1984 Geographic Coordinate System
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -73.937739
Range_Domain_Maximum: -73.753994

Attribute:

Attribute_Label: Lat
Attribute_Definition: Latitude
Attribute_Definition_Source: World Geodetic System of 1984 Geographic Coordinate System
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 40.531753
Range_Domain_Maximum: 40.589192

Attribute:

Attribute_Label: YEAR
Attribute_Definition: Year of data acquisition
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 2019
Range_Domain_Maximum: 2019

Attribute:

Attribute_Label: DOY_HR_MIN
Attribute_Definition: Day of year:hour:minute:second
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:

Unrepresentable_Domain:

Day of year, hour, minute and second of data acquisition, in Coordinated Universal Time.

Overview_Description:

Entity_and_Attribute_Overview:

Navigation files are available as ASCII delimited text files in CSV format. The final navigation files are provided in 2019-333-FA_nav.zip (Forde and others, 2021) and represent the reprojected survey shotpoint navigation, 1,000-shot-interval locations, and start of line files. The entity and attribute information provided here describes the tabular data associated with the shapefile, 2019-333-FA_shots.shp. Please review the detailed descriptions that are provided (the individual attribute descriptions) for information on the values that appear as fields/table entries of the dataset.

Entity_and_Attribute_Detail_Citation:

The entity and attribute information were generated by the individual and/or agency identified as the originator of the dataset. Please review the rest of the metadata record for additional details and information.

Distribution_Information:

Distributor:

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: St. Petersburg
State_or_Province: FL
Postal_Code: 33701
Country: USA

Contact_Voice_Telephone: (727) 502-8000
Contact_Electronic_Mail_Address: aforde@usgs.gov

Distribution_Liability:

This publication was prepared by an agency of the United States Government. Although these data were processed successfully on a computer system at the U.S. Geological Survey, no warranty expressed or implied is made regarding the display or utility of the data on any other system, nor shall the act of distribution imply any such warranty. The U.S. Geological Survey shall not be held liable for improper or incorrect use of the data described and (or) contained herein. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof.

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: Shapefile, MXD, KMZ, GIF
Format_Information_Content:

2019-333-FA_gis.zip contains the survey navigation data represented geospatially using a Google Earth KMZ, Esri map document, shapefiles, and a folder of processed subbottom profile images (accessible via hyperlinks included in the MXD). This metadata record describes the 1,000-shot-interval locations provided in, 2019-333-FA_shots.shp, which is one of the three Esri shapefiles included in the geographic information system (GIS) data ZIP file.

File_Decompression_Technique: Winzip or 7zip
Transfer_Size: 46.5

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

https://coastal.er.usgs.gov/data-release/doi-P9ZO8QKJ/data/2019-333-FA_gis.zip

Fees: None

Technical_Prerequisites:

This shapefile was created for use with Esri ArcGIS 10.6 software. It may also be viewed with Esri public domain software Explorer for ArcGIS, GeoMapApp 3.6.10 (http://www.geomapapp.org, 2021), or other GIS software capable of importing the data.

Metadata_Reference_Information:

Metadata_Date: 20210428
Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey
Contact_Person: Arnell S. Forde

Contact_Position: Geologist
Contact_Address:

Address_Type: Mailing and physical
Address: 600 Fourth Street South
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701
Country: USA

Contact_Voice_Telephone: 727-502-8000
Contact_Electronic_Mail_Address: aforde@usgs.gov

Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998

This page is <https://cmgds.marine.usgs.gov/catalog/spcmsc/2019-333-FA_shots.shp.html>