Short Citation:
Office for Coastal Management, 2021: ASV_SEISMICSHOT500 - Shot Points at 500 Shot Intervals for Seismic Data Collected with Autonomous Surface Vehicle (ASV) IRIS in Apalachicola Bay and St. George Sound, FL., https://www.fisheries.noaa.gov/inport/item/47879.

Item Identification

Title: ASV_SEISMICSHOT500 - Shot Points at 500 Shot Intervals for Seismic Data Collected with Autonomous Surface Vehicle (ASV) IRIS in Apalachicola Bay and St. George Sound, FL.
Short Name: fl_ab06_sbp-pointsASV-meta
Status: Completed
Publication Date: 2007
Abstract:

These data were collected under a cooperative mapping program between the U.S. Geological Survey (USGS), the National Oceanic and Atmospheric Administration Office for Coastal Management (NOAA\OCM), and the Apalachicola National Estuarine Research Reserve (NERR). The primary objectives of this program were to collect marine geophysical data to develop a suite of seafloor maps to better define the extent of oyster habitats, the overall seafloor geology of the bay and provide updated information for management of this resource. In addition to their value for management of the bay's oyster resources, the maps also provide a geologic framework for scientific research and the public.

High-resolution bathymetry, backscatter intensity, and seismic profile data were collected over 230 square kilometers of the floor of the bay. The study focused on the Apalachicola Bay and Western St. George Sound portions of the estuary mostly in depths > 2.0 meters.

Original contact information:

Contact Name: Brian Andrews

Contact Org: U.S. Geological Survey

Title: Geographer

Phone: 508-548-8700 x2348

Email: bandrews@usgs.gov

Purpose:

This shapefile represents the shotpoints at a 500 shot interval derived from the navigation for seismic-reflection profiles collected from the ASV IRIS during USGS field activity 06001 in Apalachicola Bay and St. George Sound, Florida. The purpose of these data is to provide geographic locations of shot points so that features in the seismic profiles can be properly located along the tracklines.

Notes:

10036

Keywords

Theme Keywords

Thesaurus Keyword
General ASV
General Autonomous Surface Vehicle
General CMGP
General Coastal and Marine Geology Program
General Environmental Monitoring
General field activity serial number 06001
General geologic mapping
General IRIS
General Marine Geology
General Seafloor
General seafloor mapping
General Seismic Profile
General seismic shotpoints
General U.S. Geological Survey
General USGS
General WHSC
General Woods Hole Science Center
Global Change Master Directory (GCMD) Science Keywords Earth Science > Biosphere > Ecosystems > Marine Ecosystems > Benthic
Global Change Master Directory (GCMD) Science Keywords Earth Science > Biosphere > Ecosystems > Marine Ecosystems > Coastal
Global Change Master Directory (GCMD) Science Keywords Earth Science > Biosphere > Ecosystems > Marine Ecosystems > Estuary
ISO 19115 Topic Category location
ISO 19115 Topic Category oceans
ISO 19115 Topic Category transportation

Temporal Keywords

Thesaurus Keyword
General 2006

Spatial Keywords

Thesaurus Keyword
General Apalachicola Bay
General Apalachicola National Estuarine Research Reserve
General Florida
General Gulf of Mexico
General St. George Sound
General United States
Global Change Master Directory (GCMD) Location Keywords Continent > North America > United States Of America > Florida

Stratum Keywords

Thesaurus Keyword
General Seafloor
General Subsurface

Physical Location

Organization: Office for Coastal Management
City: Charleston
State/Province: SC

Data Set Information

Data Set Scope Code: Data Set
Maintenance Frequency: None Planned
Data Presentation Form: Map (digital)
Distribution Liability:

Although this data set has been used by the U.S. Geological Survey (USGS), no warranty, expressed or implied, is made by the USGS as to the accuracy of the data and/or related materials. 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.

Support Roles

Data Steward

CC ID: 610889
Date Effective From: 2007
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address: coastal.info@noaa.gov
Phone: (843) 740-1202
URL: https://coast.noaa.gov

Distributor

CC ID: 610891
Date Effective From: 2007
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address: coastal.info@noaa.gov
Phone: (843) 740-1202
URL: https://coast.noaa.gov

Metadata Contact

CC ID: 610892
Date Effective From: 2007
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address: coastal.info@noaa.gov
Phone: (843) 740-1202
URL: https://coast.noaa.gov

Point of Contact

CC ID: 610890
Date Effective From: 2007
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address: coastal.info@noaa.gov
Phone: (843) 740-1202
URL: https://coast.noaa.gov

Extents

Currentness Reference: Ground Condition

Extent Group 1

Extent Group 1 / Geographic Area 1

CC ID: 610895
W° Bound: -85.062548
E° Bound: -84.809732
N° Bound: 29.746337
S° Bound: 29.618655

Extent Group 1 / Time Frame 1

CC ID: 610894
Time Frame Type: Range
Start: 2006-06-03
End: 2006-06-27

Spatial Information

Spatial Representation

Representations Used

Vector: Yes

Vector Representation 1

CC ID: 610884
Point Object Present?: Yes
Point Object Count: 4183

Access Information

Security Class: Unclassified
Data Access Constraints:

None

Data Use Constraints:

These data should not be used at resolutions for which they are not intended.

Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey (USGS) as the source of this information.

Distribution Information

Distribution 1

CC ID: 750347
Download URL: ftp://ftp.coast.noaa.gov/pub/benthic/Sub-Bottom_Profile_Data/FL_ApalachicolaBay_sbp-asv.zip
Distributor:
File Name: Bulk Download
Description:

FTP download of data files.

URLs

URL 1

CC ID: 750349
URL: http://pubs.usgs.gov/of/2006/1381/GIS/thumbnails/ASV_SeismicShot500.jpg
Name: Browse Graphic
URL Type:
Browse Graphic
File Resource Format: JPEG
Description:

JPEG image of seismic shots on ASV lines.

Activity Log

Activity Log 1

CC ID: 610930
Activity Date/Time: 2017-03-30
Description:

Date that the source FGDC record was last modified.

Activity Log 2

CC ID: 610929
Activity Date/Time: 2017-11-14
Description:

Converted from FGDC Content Standards for Digital Geospatial Metadata (version FGDC-STD-001-1998) using 'fgdc_to_inport_xml.pl' script. Contact Tyler Christensen (NOS) for details.

Activity Log 3

CC ID: 717840
Activity Date/Time: 2018-02-08
Description:

Partial upload of Positional Accuracy fields only.

Activity Log 4

CC ID: 750348
Activity Date/Time: 2018-04-11
Description:

Partial upload to move data access FTP links to Distribution Info and remove broken URLs.

Technical Environment

Description:

Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.2.2.1350

Data Quality

Accuracy:

RTK GPS was used to navigate the survey systems for seismic-reflection systems. The GPS antenna was mounted over the seismic system.

Horizontal Positional Accuracy:

Navigation was recorded to all data acquisition systems using Real Time Kinematic GPS at a one second interval.

Horizontal accuracy of the navigation is assumed to be +/- 1 meter. The shot point file and survey line file for the

seismic data are both derived from the same navigation file that was logged by the seismic acquisition system, but

because the two were processed differently, the shot points do not always fall directly on the survey line. To create

the shot point file, the navigation was queried to extract every 500th point starting with shot point 500. By

contrast, to create the survey line file, the navigation was queried at a one minute interval (every 60th point), and

then a line was drawn using these points. Because of the different processing approaches, many of the shot points,

although close, do not fall exactly on the survey line. If meter accuracy is truely needed, it would be best to

extract the navigation from the archived SEG-Y seismic files.

Completeness Report:

Shot points are not available for sections of the survey lines where seismic data were not logged.

Conceptual Consistency:

Data was compared to sediment grabs and was collected following standard best practices for recording sub-bottom profile data.

Lineage

Process Steps

Process Step 1

CC ID: 610881
Description:

Navigation was extracted from raw SEG-Y format and converted to ASCII text file. The file containing navigation for each shot was then queried to extract shots at 500 shot interval using the awk script makenav developed for USGS by Bill Danforth. The 500 shot file for each survey line was concatenated and imported to ArcGIS 9.1 then converted to a point feature class.

Process Date/Time: 2007-05-20 00:00:00

Process Step 2

CC ID: 610882
Description:

Exported feature class from personal geodatabase to a shapefile and projected to geographic.

Process Date/Time: 2007-07-01 00:00:00

Child Items

Rubric scores updated every 15m

Rubric Score Type Title
Entity (ENT) ASV_SeismicShot500

Catalog Details

Catalog Item ID: 47879
Metadata Record Created By: Anne Ball
Metadata Record Created: 2017-11-14 12:57+0000
Metadata Record Last Modified By: SysAdmin InPortAdmin
Metadata Record Last Modified: 2019-07-02 15:17+0000
Metadata Record Published: 2018-04-11
Owner Org: OCM
Metadata Publication Status: Published Externally
Do Not Publish?: N
Metadata Next Review Date: 2019-04-12