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OCM Metadata Library > Benthic >

1999 RoxAnn Data Points from Apalachicola Bay, Florida

Data Set (DS)  |  Office for Coastal Management (OCM)
GUID: gov.noaa.nmfs.inport:47882  |  Updated: May 30, 2023  |  Published / External 
Short Citation:
Full Citation Examples
Office for Coastal Management, 2026: 1999 RoxAnn Data Points from Apalachicola Bay, Florida, https://www.fisheries.noaa.gov/inport/item/47882.

Item Identification

Title: 1999 RoxAnn Data Points from Apalachicola Bay, Florida
Short Name: fl_ab99_rox-meta
Status: Completed
Publication Date: 2001-05-09
Abstract:

The Apalachicola Bay National Estuarine Research Reserve and the NOAA Office for Coastal Management worked together to map benthic habitats within Apalachicola Bay, Florida. The bay and the lower portions of four distributaries were surveyed on 11-22 October 1999 using three benthic sampling techniques. This data set represents the information gathered from a RoxAnn acoustic sensor. The instrument was used to characterize bottom type by extracting data on bottom roughness and bottom hardness from the primary and secondary sounder echoes. The data is classified on-the-fly, using the Sediment Profile Images and grab samples collected for field validation, and subject to a post-processing classification. The RoxAnn data points were exported into a geographic information system (GIS) and post-processed to remove unreliable data points and re-classified. This data set is comprised of the cleaned, attributed point data. The attributes include location, date, time, depth, field derived classification, and the classification derived from post-processing the data.

Original contact information:

Contact Org: NOAA Office for Coastal Management

Phone: 843-740-1202

Email: coastal.info@noaa.gov
Purpose:

This data set was collected to supplement the SPI and grab sample data by providing information on the bottom between the SPI and grab stations.
Notes:

10039

Keywords

Theme Keywords

Thesaurus Keyword
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
biota
ISO 19115 Topic Category
environment
UNCONTROLLED
None Acoustic
None benthic mapping
None Environmental Monitoring
None National Estuarine Research Reserve
None OCM Benthic Habitat Mapping
None oysters
None RoxAnn
None SAV

Spatial Keywords

Thesaurus Keyword
Global Change Master Directory (GCMD) Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > FLORIDA
UNCONTROLLED
None Apalachicola Bay
None Florida
None Gulf Coast Florida

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:

While every effort has been made to ensure that these data are accurate and reliable within limits of the state of the art, NOAA will not assume any liability for damages caused by any inaccuracies in these data, or failure in their use.

Support Roles

Data Steward

CC ID: 611030
Date Effective From: 2001-05-09
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: 611032
Date Effective From: 2001-05-09
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: 611033
Date Effective From: 2001-05-09
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: 611031
Date Effective From: 2001-05-09
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: 611036
W° Bound: -85.221802
E° Bound: -84.733803
N° Bound: 29.805416
S° Bound: 29.597982

Extent Group 1 / Time Frame 1

CC ID: 611035
Time Frame Type: Discrete
Start: 1999-10

Spatial Information

Spatial Representation

Representations Used

Vector: Yes

Vector Representation 1

CC ID: 611025
Point Object Present?: Yes
Point Object Count: 109967

Access Information

Security Class: Unclassified
Data Access Procedure:

Single beam acoustic data points (RoxAnn) collected in Apalachicola Bay, Florida on October 11 to 22, 1999.For information about obtaining these data, please visit the project home page at http://www.coast.noaa.gov/benthic/data/gulf/apa.htm;
Data Access Constraints:

None
Data Use Constraints:

It is the responsibility of the user to determine the appropriate use of the data product. The depth data has not been corrected and should not be used for navigation.

Distribution Information

Distribution 1

CC ID: 750353
Download URL: ftp://ftp.coast.noaa.gov/pub/benthic/Single_Beam_Acoustic_Data/FL_ApalachicolaBay_rox.zip
Distributor:
File Name: Bulk Download
Description:

FTP download of data files.

URLs

URL 1

CC ID: 750355
URL: https://coast.noaa.gov/
Name: NOAA's Office for Coastal Management (OCM) website
URL Type:
Online Resource
Description:

Information on the NOAA Office for Coastal Management (OCM)

Activity Log

Activity Log 1

CC ID: 611055
Activity Date/Time: 2017-03-30
Description:

Date that the source FGDC record was last modified.

Activity Log 2

CC ID: 611054
Activity Date/Time: 2017-11-14
Description:

Converted from FGDC Content Standard 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: 717843
Activity Date/Time: 2018-02-08
Description:

Partial upload of Positional Accuracy fields only.

Activity Log 4

CC ID: 750354
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:

ArcView version 3.3 shapefile format

Data Quality

Accuracy:

This data is accurate to field conditions in October 1999. The depth points have not been corrected for tide and wind variables.
Horizontal Positional Accuracy:

Stations were located in the field using a differential Global Positioning System (GPS). Not verified.
Vertical Positional Accuracy:

Not applicable
Completeness Report:

Data is complete.
Conceptual Consistency:

The data were collected with the RoxAnn acoustic sensor in a geographic projection. The field database was exported from RoxMap software as a text file. Unreliable data points (i.e. data with impossible bathymetry) were deleted. Using ArcInfo, the point data were converted to both a shapefile and coverage, and reprojected to UTM Zone 17 WGS 84 Meters.

Lineage

Sources

RoxAnn Data Points

CC ID: 611022
Contact Name: Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Office for Coastal Management (OCM)
Publish Date: 2001-05-09
Extent Type: Range
Extent Start Date/Time: 1999-10-11
Extent End Date/Time: 1999-10-22
Source Contribution:

Unknown | Source Geospatial Form: map | Type of Source Media: Unknown

Process Steps

Process Step 1

CC ID: 611023
Description:

In October of 1999, the RoxAnn acoustic sensor was deployed along a predetermined grid pattern with approximately 1000 meter spacing. The RoxAnn system analyzes two acoustic signals, bottom roughness (E1) and bottom hardness (E2). The ratios of these two measurements were calibrated in the field to known bottom types. Ground-truthing the measurements in the field was accomplished by underwater video, grab samples and SPI imagery. The field database was exported from the RoxMap software as a text file. Unreliable data points indicated by impossible bathymetry data or repeating values were removed (i.e. depths in excess of 3 meters). In addition, series of identical points were reduced to the initial value and the remaining points from the data set. The 25 original field derived classes developed in the field varied in level of descriptiveness. These overlapping and varying classifications were grouped to seven general classes - sand, silt, oyster reef, shell, SAV, clay and unknown.
Process Date/Time: 1999-10-11 00:00:00

Child Items

Rubric scores updated every 15m

Rubric Score Type Title
Entity roxannpts_utm.dbf

Catalog Details

Catalog Item ID: 47882
GUID: gov.noaa.nmfs.inport:47882
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: 2023-05-30 18:09+0000
Metadata Record Published: 2018-04-11
Owner Org: OCM
Metadata Publication Status: Published Externally
Do Not Publish?: N
Metadata Last Review Date: 2018-04-11
Metadata Review Frequency: 1 Year
Metadata Next Review Date: 2019-04-11