47882
1999 RoxAnn Data Points from Apalachicola Bay, Florida
fl_ab99_rox-meta
Data Set
Published / External
37225
Benthic
Project
Completed
2001-05-09
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
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.
10039
Theme
Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > BENTHIC
Theme
Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > COASTAL
Theme
Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > ESTUARY
Theme
ISO 19115 Topic Category
biota
Theme
ISO 19115 Topic Category
environment
Spatial
Global Change Master Directory (GCMD) Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > FLORIDA
Theme
Acoustic
Theme
Environmental Monitoring
Theme
National Estuarine Research Reserve
Theme
OCM Benthic Habitat Mapping
Theme
RoxAnn
Theme
SAV
Theme
benthic mapping
Theme
oysters
Spatial
Apalachicola Bay
Spatial
Florida
Spatial
Gulf Coast Florida
Office for Coastal Management
Charleston
SC
Data Set
None Planned
Map (digital)
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.
49284
roxannpts_utm.dbf
roxannpts_utm.dbf
Published / External
Completed
Shapefile Attribute Table | Description Source: None
Converted from FGDC using 'fgdc_to_inport_xml_entity.pl' script.
1
Area
Unknown
No
No
Active
Area of polygon | Description Source: Software generated
Software computed
2
Perimeter
Unknown
No
No
Active
Perimeter of polygon | Description Source: Software generated
Software computed
3
Roxann_
NUMBER
No
No
Active
Unknown | Description Source: Unknown
1 - 109967
4
Roxann_id
NUMBER
No
No
Active
point id | Description Source: Unknown
1 - 109967
5
Class
VARCHAR
No
No
Active
Unknown | Description Source: Unknown
numeric field classification: field
6
Lat
NUMBER
No
No
Active
Unknown | Description Source: Unknown
30 - 30
7
Long
NUMBER
No
No
Active
Unknown | Description Source: Unknown
-85 - -85
8
Depth
NUMBER
No
No
Active
depth in meters | Description Source: Unknown
-12 - -1
9
E1
NUMBER
No
No
Active
Roughness (primary echo) | Description Source: Unknown
0 - 2
10
E2
NUMBER
No
No
Active
Hardness (secondary echo) | Description Source: Unknown
0 - 2
11
Time
Unknown
No
No
Active
Time of collection Eastern Standard Time | Description Source: Unknown
Eastern Standard Time
12
Date
Unknown
No
No
Active
Unknown | Description Source: Unknown
Date of data collection (mm-dd-yy)
13
Flag
Unknown
No
No
Active
Unknown | Description Source: Unknown
field used to remove bad points based on repeating values
14
Depth_flag
Unknown
No
No
Active
Unknown | Description Source: Unknown
field used to remove bad points based on depth
15
Field_clas
VARCHAR
No
No
Active
Unknown | Description Source: Unknown
coarse gravel: coarse gravel | cohesive clay: Unknown | dense grass on s: Unknown | det. on sand: Unknown | det. on silt: Unknown | fine sand: Unknown | flat shell: Unknown | hard packed sand: Unknown | hard sand w/sand: Unknown | Indian pass sand: Unknown | medium sand: Unknown | mud: Unknown | oyster reef: Unknown | sand: Unknown | sand @ 2454: Unknown | shell hash: Unknown | shell on silt: Unknown | silt: Unknown | silt in river: silt in river | silty clay: Unknown | silty sand: Unknown | unclassified: Unknown | very hard sand: Unknown | worm tubes: Unknown |
16
Collapsed_
VARCHAR
No
No
Active
Unknown | Description Source: Unknown
clay: clay | oyster reef: oyster reef | sand: sand | sav: sav | shell: shell | silt: silt | unclassified: unclassified |
17
Coll_numer
NUMBER
No
No
Active
Unknown | Description Source: Unknown
1 - 9
18
Badgps
NUMBER
No
No
Active
Points with value 1 have unreliable GPS coordinate data due to an unknown error source. These points are located in SW area of study area. | Description Source: Unknown
0 - 1
19
Coll_num_n
NUMBER
No
No
Active
Unknown | Description Source: Unknown
0 - 6
Data Steward
2001-05-09
Organization
NOAA Office for Coastal Management
NOAA/OCM
coastal.info@noaa.gov
2234 South Hobson Ave
Charleston
SC
29405-2413
(843) 740-1202
https://coast.noaa.gov
NOAA Office for Coastal Management Home Page
Online Resource
Distributor
2001-05-09
Organization
NOAA Office for Coastal Management
NOAA/OCM
coastal.info@noaa.gov
2234 South Hobson Ave
Charleston
SC
29405-2413
(843) 740-1202
https://coast.noaa.gov
NOAA Office for Coastal Management Home Page
Online Resource
Metadata Contact
2001-05-09
Organization
NOAA Office for Coastal Management
NOAA/OCM
coastal.info@noaa.gov
2234 South Hobson Ave
Charleston
SC
29405-2413
(843) 740-1202
https://coast.noaa.gov
NOAA Office for Coastal Management Home Page
Online Resource
Point of Contact
2001-05-09
Organization
NOAA Office for Coastal Management
NOAA/OCM
coastal.info@noaa.gov
2234 South Hobson Ave
Charleston
SC
29405-2413
(843) 740-1202
https://coast.noaa.gov
NOAA Office for Coastal Management Home Page
Online Resource
Ground Condition
-85.221802
-84.733803
29.805416
29.597982
Discrete
1999-10
Yes
Yes
109967
Unclassified
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;
None
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.
ftp://ftp.coast.noaa.gov/pub/benthic/Single_Beam_Acoustic_Data/FL_ApalachicolaBay_rox.zip
Bulk Download
FTP download of data files.
https://coast.noaa.gov/
NOAA's Office for Coastal Management (OCM) website
Online Resource
Information on the NOAA Office for Coastal Management (OCM)
2017-03-30
Date that the source FGDC record was last modified.
2017-11-14
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.
2018-02-08
Partial upload of Positional Accuracy fields only.
2018-04-11
Partial upload to move data access FTP links to Distribution Info and remove broken URLs.
ArcView version 3.3 shapefile format
This data is accurate to field conditions in October 1999. The depth points have not been corrected for tide and wind variables.
Stations were located in the field using a differential Global Positioning System (GPS). Not verified.
Not applicable
Data is complete.
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.
RoxAnn Data Points
Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Office for Coastal Management (OCM)
2001-05-09
Range
1999-10-11
1999-10-22
Unknown | Source Geospatial Form: map | Type of Source Media: Unknown
1
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.
1999-10-11T00:00:00
49284
Entity
roxannpts_utm.dbf
gov.noaa.nmfs.inport:47882
Anne Ball
2017-11-14T12:57:24
SysAdmin InPortAdmin
2023-05-30T18:09:28
2018-04-11
Office for Coastal Management
OCM
1002
Public
No
2018-04-11
1 Year
2019-04-11