Benthic Habitat Mapping - Dry Tortugas RoxAnn Acoustic Sensor Data Points (NODC Accession 0001045)

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

Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator:
Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Coastal Services Center (CSC)
Publication_Date: 20050801
Title:
Benthic Habitat Mapping - Dry Tortugas RoxAnn Acoustic Sensor Data Points (NODC Accession 0001045)
Edition: 1.0
Geospatial_Data_Presentation_Form: Map
Publication_Information:
Publication_Place: Charleston, SC
Publisher: NOAA's Ocean Service, Coastal Services Center (CSC)
Online_Linkage: <http://www.csc.noaa.gov/digitalcoast/data/benthicsba>
Online_Linkage:
<ftp://ftp.csc.noaa.gov/pub/benthic/Single_Beam_Acoustic_Data/FL_DryTortugas_rox.zip>
Online_Linkage: <http://www.csc.noaa.gov/>
Online_Linkage: <http://accession.nodc.noaa.gov/0001045>
Larger_Work_Citation:
Citation_Information:
Originator: NOAA Beaufort Laboratory
Publication_Date: 20040401
Title:
Biogeographic Analysis of the Tortugas Ecological Reserve Examining the Refuge Effect Following Reserve Establishment
Publication_Information:
Publication_Place: Silver Spring, MD
Publisher: Marine Sanctuaries Division
Description:
Abstract:
During April 2001 RoxAnn single-beam acoustic surveys were conducted at the North Unit of the Tortugas Ecological Reserve, Florida. Thirteen transects associated with fixed bottom sampling stations were surveyed to characterize the ecotone around the stations. In addition survey tracks were run along the outer edge of the Tortugas platform reef complex and into the interior of the platform. A towed video sled (minibat) was deployed simultaneously with the RoxAnn survey which provided a live video ground truth to the acoustic signals. Using this ground truth several bottom classes were identified including coral, seagrass, algae, unconsolidated sediments, and hardbottoms. The original RoxAnn categories are preserved in the Class field and benthic habitat codes from the Florida System for Classifying Estuarine and Marine Environments (SCHEME) system are preserved in the SCHEME field. The depth value is in meters below transducer surface.
Purpose:
The single-beam surveys were part of a larger biogeographic characterization effort intended to characterize benthic habitats, ocean circulation patterns, in the newly established Tortugas Ecological Reserve. The goal of the project was to establish a baseline of environmental conditions and processes that could be compared to future surveys. This would support evaluations of various reserve managment strategies.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20010408
Ending_Date: 20010412
Currentness_Reference: Ground Condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -83.0003
East_Bounding_Coordinate: -82.7618
North_Bounding_Coordinate: 24.7391
South_Bounding_Coordinate: 24.5195
Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: Environmental Monitoring
Theme_Keyword: RoxAnn
Theme_Keyword: Single-Beam Acoustics
Theme_Keyword: Benthic Habitat
Theme_Keyword: Depth
Theme_Keyword: SCHEME
Theme_Keyword: CSC Benthic Habitat Mapping
Theme_Keyword: CoRIS
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: environment
Theme_Keyword: 007
Theme_Keyword: biota
Theme_Keyword: 002
Theme:
Theme_Keyword_Thesaurus: CoRIS Discovery Thesaurus
Theme_Keyword: Geographic Information > Habitats
Theme:
Theme_Keyword_Thesaurus: CoRIS Theme Thesaurus
Theme_Keyword:
EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs > Coral Reef Ecology > Habitats
Theme_Keyword:
EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > Mapping > Habitat Mapping
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: Gulf of Mexico
Place_Keyword: Florida
Place_Keyword: Dry Tortugas
Place_Keyword: Tortugas Ecological Reserve
Place_Keyword: Florida Keys National Marine Sanctuary
Place:
Place_Keyword_Thesaurus: CoRIS Place Thesaurus
Place_Keyword:
OCEAN BASIN > Atlantic Ocean > North Atlantic Ocean > Florida Reef Tract > Dry Tortugas > Dry Tortugas (24N082W0001)
Place_Keyword:
COUNTRY/TERRITORY > United States of America > Florida > Monroe County > Dry Tortugas (24N082W0001)
Place_Keyword:
COUNTRY/TERRITORY > United States of America > Florida > Monroe County > Florida Keys (24N081W0007)
Place_Keyword:
OCEAN BASIN > Atlantic Ocean > North Atlantic Ocean > Florida Reef Tract > Florida Keys (24N081W0007)
Place:
Place_Keyword_Thesaurus: CoRIS Region
Place_Keyword: Florida
Access_Constraints: None
Use_Constraints:
Bathymetric data have not been corrected for tide and wind variables. Not for use in navigation.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: NOAA Coastal Services Center
Contact_Address:
Address_Type: mailing and physical
Address: 2234 South Hobson Avenue
City: Charleston
State_or_Province: South Carolina
Postal_Code: 29405
Country: USA
Contact_Voice_Telephone: (843) 740-1264
Contact_Facsimile_Telephone: (843) 740-1289
Hours_of_Service: 8:00 - 17:00 EST
Native_Data_Set_Environment: ArcView version 3.2 shapefile format

Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
This data is accurate to field conditions in April 2001. The depth readings have not been corrected for tide stage or wind variables. A towed video system (mini-bat) was deployed behind the vessel where the acoustic transducer was deployed. This provided real-time ground-truth to the acoustic signals. As habitat boundaries were crossed, the RoxAnn acoustic signature box was updated and checked. In addition dive observations were made along the transects to verify the habitat classes.
Logical_Consistency_Report:
These data are believed to be logically consistent, though no tests have been performed. Point geometry is topologically clean.
Completeness_Report: The data is complete.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
The horizontal positional accuracy is based on the accuracy of the GPS used to generate the coordinate pair for each acoustic record. The GPS unit was a military grade receiver enabled to receive encrypted Y-code from the GPS satellites. his typically produces a spatial accuracy of 10 meters or less.
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report:
Depth value is in meters below transducer. No correction has been applied for wind or tide effects. No validation was performed on this data and no accuracy is implied.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator:
Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Coastal Services Center (CSC)
Publication_Date: 20050801
Title: Dry Tortugas RoxAnn Points
Edition: 1.0
Geospatial_Data_Presentation_Form: map
Publication_Information:
Publication_Place: Charleston, SC
Publisher: NOAA's Ocean Service, Coastal Services Center (CSC)
Online_Linkage: <http://www.csc.noaa.gov/benthic/data/data.htm>
Larger_Work_Citation:
Citation_Information:
Originator: NOAA Beaufort Laboratory
Publication_Date: 20040401
Title:
Biogeographic Analysis of the Tortugas Ecological Reserve Examining the Refuge Effect Following Reserve Establishment
Publication_Information:
Publication_Place: Silver Spring, MD
Publisher: NOAA Marine Sanctuaries Division
Type_of_Source_Media: map
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20010408
Ending_Date: 20010412
Source_Currentness_Reference: Ground Condition
Source_Citation_Abbreviation: NOAA CSC
Source_Contribution: Unknown
Process_Step:
Process_Description:
Between 8 and 12 April 2001 RoxAnn single-beam acoustic data were collected along 16 transects running across the edge of the Tortugas platform reef. The transducer was mounted on a pole attached to the side of the research vessel and was co-located with a PLGR GPS unit. Data were recorded at 1 second intervals. The E1 and E2 signals received were displayed and logged in the normal RoxMap Scientific software environment. The vessel speed during collection was approximately 4 kts. Simultaneous to collection of the acoustic data a towed video sled was deployed astern of the ship. The picture from this video was displayed in the lab within view of the RoxAnn data analyst. This allowed a near real-time reference for the acoustic data. This ground-truth was used to assign the RoxAnn soundings into several bottom classes. At the conclusion of each transect run. The instrument was shut off until the next transect was visited.
Process_Date: 200104
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: NOAA Coastal Services Center
Contact_Address:
Address_Type: mailing and physical
Address: 2234 South Hobson Avenue
City: Charleston
State_or_Province: South Carolina
Postal_Code: 20405
Country: USA
Contact_Voice_Telephone: (843) 740-1264
Contact_Facsimile_Telephone: (843) 740-1289
Contact_Electronic_Mail_Address: clearinghouse@noaa.gov
Hours_of_Service: 08:00 - 17:00 EST
Process_Step:
Process_Description:
The full RoxAnn record collected during the April cruise was exported from the RoxMap environment and converted into ESRI shapefile format for further analysis. A set of tools developed at CSC specifically for cleaning RoxAnn data were used to remove noise and anomalous points from the record. These points included spikes and pits in the bathymetry as well as bad data caused by surface turbulence. Each bottom class in the data was then exported individually and displayed on a scatterplot of E1 vs. E2 values to examine its geometry. The cluster means (E1 and E2) for each class were also displayed relative to each other as a logical check between classes. The final results were recoded into the Florida SCHEME benthic habitat classification system to ensure consistency with other CSC benthic data.
Process_Date: 20031201
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: NOAA Coastal Services Center
Contact_Address:
Address_Type: mailing and physical
Address: 2234 South Hobson Avenue
City: Charleston
State_or_Province: South Carolina
Postal_Code: 20405
Country: USA
Contact_Voice_Telephone: (843) 740-1264
Contact_Facsimile_Telephone: (843) 740-1289
Contact_Electronic_Mail_Address: clearinghouse@noaa.gov
Hours_of_Service: 08:00 - 17:00 EST

Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Point
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: Point
Point_and_Vector_Object_Count: 25933

Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Grid_Coordinate_System:
Grid_Coordinate_System_Name: Universal Transverse Mercator
Universal_Transverse_Mercator:
UTM_Zone_Number: 17
Transverse_Mercator:
Scale_Factor_at_Central_Meridian: 0.999600
Longitude_of_Central_Meridian: -81.000000
Latitude_of_Projection_Origin: 0.000000
False_Easting: 500000.000000
False_Northing: 0.000000
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: row and column
Coordinate_Representation:
Abscissa_Resolution: 1
Ordinate_Resolution: 1
Planar_Distance_Units:
unknown. Abscissa/Ordinate Resolution values were unreported and populated with one to satisfy validation requirements
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: GRS 80
Semi-major_Axis: 6378137.0000000
Denominator_of_Flattening_Ratio: 298.26

Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: fl_dt01.dbf
Entity_Type_Definition: Shapefile Attribute Table
Entity_Type_Definition_Source: None
Attribute:
Attribute_Label: Class
Attribute_Definition: Unknown
Attribute_Definition_Source: Unknown
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 30
Attribute:
Attribute_Label: Latitude
Attribute_Definition: Unknown
Attribute_Definition_Source: Unknown
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 24.52
Range_Domain_Maximum: 24.7381
Attribute:
Attribute_Label: Longitude
Attribute_Definition: Unknown
Attribute_Definition_Source: Unknown
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -82.9984
Range_Domain_Maximum: -82.7639
Attribute:
Attribute_Label: Depth
Attribute_Definition: Unknown
Attribute_Definition_Source: Unknown
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -35.55
Range_Domain_Maximum: -5.59
Attribute:
Attribute_Label: E1
Attribute_Definition: Unknown
Attribute_Definition_Source: Unknown
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.029
Range_Domain_Maximum: 2.64
Attribute:
Attribute_Label: E2
Attribute_Definition: Unknown
Attribute_Definition_Source: Unknown
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.02
Range_Domain_Maximum: 1.289
Attribute:
Attribute_Label: Time
Attribute_Definition: Unknown
Attribute_Definition_Source: Unknown
Attribute_Domain_Values:
Unrepresentable_Domain: Eastern Daylight Time
Attribute:
Attribute_Label: Date_
Attribute_Definition: Unknown
Attribute_Definition_Source: Unknown
Attribute_Domain_Values:
Unrepresentable_Domain: Date
Attribute:
Attribute_Label: Scheme
Attribute_Definition: Unknown
Attribute_Definition_Source: Unknown
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 3
Range_Domain_Maximum: 342
Attribute:
Attribute_Label: Modifier
Attribute_Definition: Unknown
Attribute_Definition_Source: Unknown
Attribute_Domain_Values:
Unrepresentable_Domain: SCHEME Modifier
Attribute:
Attribute_Label: Habitat
Attribute_Definition: Unknown
Attribute_Definition_Source: Unknown
Attribute_Domain_Values:
Unrepresentable_Domain: Habitat Description

Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: NOAA Coastal Services Center
Contact_Position: Clearinghouse Manager
Contact_Address:
Address_Type: mailing and physical
Address: 2234 South Hobson Avenue
City: Charleston
State_or_Province: South Carolina
Postal_Code: 29405
Country: USA
Contact_Voice_Telephone: (843) 740-1264
Contact_Facsimile_Telephone: (843 740-1289
Contact_Electronic_Mail_Address: clearinghouse@noaa.gov
Hours_of_Service: 08:00 - 17:00 EST
Resource_Description: Downloadable Data
Distribution_Liability:
Single-beam acoustic data points collected in the Dry Tortugas area of Florida. 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.

Metadata_Reference_Information:
Metadata_Date: 20130903
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: NOAA Coastal Services Center
Contact_Position: Metadata Specialist
Contact_Address:
Address_Type: mailing and physical
Address: 2234 South Hobson Avenue
City: Charleston
State_or_Province: South Carolina
Postal_Code: 29405
Country: USA
Contact_Voice_Telephone: (843) 740-1210
Contact_Electronic_Mail_Address: clearinghouse@noaa.gov
Hours_of_Service: 08:00 - 17:00 EST
Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Online_Linkage:
<http://www.ncddc.noaa.gov/metadataresource/metadata-references/files/ncddcmdprofile_v2.pdf>


CoRIS:
CoRIS_ID: 20081219063346
CoRIS_Children: None
CoRIS_Beginning_Date: 20010408
CoRIS_Ending_Date: 20010412
CoRIS_Metadata_Link: <http://www.coris.noaa.gov/metadata/records/html/fl_dt01.html>
CoRIS_Tracking_ID: 2477

Generated by mp version 2.9.13 on Fri Oct 31 10:41:42 2014