2015-330-FA_shots: Digital Chirp Subbottom Profile Shotpoint Data Collected During USGS Field Activity Number 2015-330-FA Offshore of Dauphin Island, Alabama, September 2015

Metadata also available as - [Questions & Answers] - [Parseable text] - [XML]

Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: Arnell S. Forde
Publication_Date: 20221018
Title:
2015-330-FA_shots: Digital Chirp Subbottom Profile Shotpoint Data Collected During USGS Field Activity Number 2015-330-FA Offshore of Dauphin Island, Alabama, September 2015
Geospatial_Data_Presentation_Form: Vector Digital Dataset (Point)
Larger_Work_Citation:
Citation_Information:
Originator: Arnell S. Forde
Originator: James G. Flocks
Originator: Stanley D. Locker
Publication_Date: 20221018
Title:
Archive of Chirp Subbottom Profile Data Collected in 2015 From Dauphin Island, Alabama
Series_Information:
Series_Name: U.S. Geological Survey data release
Issue_Identification: doi:10.5066/P9YTIG6G
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/P9YTIG6G
Description:
Abstract:
From September 16 through 23, 2015, the U.S. Geological Survey (USGS) conducted geophysical surveys to investigate the geologic controls on barrier island evolution and sediment transport offshore of Dauphin Island, Alabama. Geophysical data were collected as part of the Alabama Barrier Island Restoration Feasibility Study. This shapefile represents a point dataset of field activity number (FAN) 2015-330-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 2015-330-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=2015-330-FA and in the Field Activity Collection System (FACS) logs, which are included in the download file, 2015-330-FA_logs.zip (Forde and others, 2022).
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20150916
Ending_Date: 20150923
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -88.327469
East_Bounding_Coordinate: -88.041133
North_Bounding_Coordinate: 30.247244
South_Bounding_Coordinate: 30.160775
Keywords:
Theme:
Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:66e51acc-28cd-406d-97b7-d6d8418b33a8
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: 2015-330-FA
Theme_Keyword: chirp
Theme_Keyword: National Fish and Wildlife Foundation
Theme_Keyword:
Restoration and Stewardship of Outdoor Resources and Environment
Place:
Place_Keyword_Thesaurus: Common Geographic Areas
Place_Keyword: Little Dauphin Island
Place_Keyword: Alabama
Place_Keyword: Gulf of Mexico
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 Jim Flocks, Stan Locker (former employee), 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) ArcMap 10.7.1.11595; Seismic Unix (Release 44).
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 118 seismic lines were collected during this field activity. Two test lines, 2015-330-FA.001 and 2015-330-FA.002, were collected in Mobile Bay on DOY 258. Lines 2015-330-FA, JD-260, and JD-264.003 were partial lines containing no usable data and line JD-264.010 was corrupted during acquisition; consequently, all of the preceding lines were excluded from this data release.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
As the subbottom profile data were acquired, the position of the vessel was continuously determined by an Applanix POS MV Wavemaster II inertial aided navigation system (IANS), which is accurate to within 0.5-2 meters (m). Positions from the POS MV were recorded and written to seismic trace headers every second (s). The approximately 19-m offset between the chirp and GPS antenna has not 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: 20220311
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 10.7 software to produce a geographic representation of the shotpoint data collected within the survey area. A 1,000-shot-interval point shapefile (.shp) 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: 20220322
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: 893
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geographic:
Latitude_Resolution: 0.0197878862
Longitude_Resolution: 0.0227705392
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: 2015-330-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 16)
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 372230.629
Range_Domain_Maximum: 399796.137
Attribute:
Attribute_Label: UTMY
Attribute_Definition: UTM-Y northing coordinate
Attribute_Definition_Source: Universal Transverse Mercator (WGS 1984, Zone 16)
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 3337073.333
Range_Domain_Maximum: 3346752.366
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: xy_bp_mod, where 'x' is an alphanumeric identifier indicating a specific trackline (for example, JD-262 or JD-265b), 'y' is a number (such as, .001, .002, etc.) representing a new line if recording was prematurely terminated or reran for quality or acquisition problems, and 'env_bp' denotes that the seismic traces were output as an envelope and a bandpass filter was applied.
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: 33000
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: -88.327469
Range_Domain_Maximum: -88.041133
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: 30.160775
Range_Domain_Maximum: 30.247244
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: 2015
Range_Domain_Maximum: 2015
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 2015-330-FA_nav.zip (Forde and others, 2022) 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, 2015-330-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:
2015-330-FA_gis.zip contains the survey navigation data represented geospatially using a Google Earth keyhole markup language zipped (KMZ) file, Esri ArcMap document (MXD), shapefiles, and a folder of processed subbottom profile images (Graphics Interchange Format [GIF], accessible via hyperlinks included in the MXD). This metadata record describes the 1,000-shot-interval locations provided in, 2015-330-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: 113.1
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
https://coastal.er.usgs.gov/data-release/doi-P9YTIG6G/data/2015-330-FA_gis.zip
Fees: None
Technical_Prerequisites:
This shapefile was created for use with Esri ArcGIS software. It may also be viewed with Esri public domain software Explorer for ArcGIS, GeoMapApp 3.6.14 (http://www.geomapapp.org, 2021), or other GIS software capable of importing the data.
Metadata_Reference_Information:
Metadata_Date: 20220912
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/2015-330-FA_shots.shp.html>
Generated by mp version 2.9.51 on Tue Oct 18 12:13:05 2022