Distribution of Benthic Habitats at Crocker Reef, Florida, 2014

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Metadata:

Identification_Information
Data_Quality_Information
Spatial_Data_Organization_Information
Spatial_Reference_Information
Entity_and_Attribute_Information
Distribution_Information
Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: U.S. Geological Survey
Publication_Date: 20161027
Title: Distribution of Benthic Habitats at Crocker Reef, Florida, 2014
Edition: first
Geospatial_Data_Presentation_Form: Vector digital data
Series_Information:

Series_Name: U.S. Geological Survey Data Release
Issue_Identification: doi:10.5066/F77942T0

Publication_Information:

Publication_Place: St. Petersburg, FL
Publisher: U.S. Geological Survey

Online_Linkage: https://doi.org/10.5066/F77942T0

Description:

Abstract:

The distribution of benthic habitats for a 1-kilometer (km) x 1-km area around Crocker Reef in the Florida Keys, USA, is based upon underwater digital images of the seafloor collected on June 24 and 25, 2014 (Zawada and others, 2016). The imagery was collected using the U.S. Geological Survey (USGS) shallow Along-Track Reef-Imaging System (sATRIS), a boat-based, pole-mounted sensor package for mapping shallow-water benthic environments. The polygons contained in the shapefile included in this data release, Habitat.shp, represent the four general habitat types found at Crocker Reef: hardbottom, rubble, sand, and seagrass.

Purpose:

Images were collected to support the Reefscape Geologic-framework task of the USGS Coral Reef Ecosystem Studies project (https://coastal.er.usgs.gov/crest/). Benthic composition, topographic relief, areal extent, and temporal stability are critical factors that contribute to the value of a given marine habitat. To provide context for the data collected in the other tasks, the focus of this task was to characterize physical aspects of the project study sites, including habitat classification, sediment distribution, and vertical temperature profiles. The images used to help create the habitat map were acquired during USGS field activity number 2014-313-FA, additional survey and data details are available at https://cmgds.marine.usgs.gov/fan_info.php?fan=2014-313-FA.

Supplemental_Information:

sATRIS images were saved in the Joint Photographic Experts Group (JPEG) format using a quality factor of 1000 (highest quality/minimal compression). GPS position, collection date and time, and camera distance-above-seafloor are stored in the EXchangable Image File format (EXIF) header of each image. Note: The cited cross-reference covers a different geographic region (Dry Tortugas National Park) than this data release's survey area, however, the methodology presented therein was also used for the 2014 Crocker Reef study. The data were collected under Florida Keys National Marine Sanctuary permit FKNMS-2013-097.

Time_Period_of_Content:

Time_Period_Information:

Multiple_Dates/Times:

Single_Date/Time:

Calendar_Date: 20140624

Single_Date/Time:

Calendar_Date: 20140625

Currentness_Reference: ground condition

Status:

Progress: Complete
Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -80.537374425
East_Bounding_Coordinate: -80.520401183
North_Bounding_Coordinate: 24.916826076
South_Bounding_Coordinate: 24.902166409

Keywords:

Theme:

Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:17c42e6e-5d7f-4166-8fc5-8cb46647901a

Theme:

Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: oceans
Theme_Keyword: geoscientificInformation
Theme_Keyword: imageryBaseMapsEarthCover

Theme:

Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: aquatic biology
Theme_Keyword: marine geology
Theme_Keyword: remote sensing

Theme:

Theme_Keyword_Thesaurus: None
Theme_Keyword: sATRIS
Theme_Keyword: Shallow Along-Track Reef Imaging System
Theme_Keyword: remote sensing
Theme_Keyword: seafloor imagery
Theme_Keyword: benthic surveys
Theme_Keyword: habitat mapping
Theme_Keyword: digital imagery
Theme_Keyword: submerged

Theme:

Theme_Keyword_Thesaurus: Global Change Master Science Directory
Theme_Keyword: OCEAN > MARINE SEDIMENTS > SEDIMENT COMPOSITION
Theme_Keyword: OCEAN > COASTAL PROCESSES > CORAL REEFS
Theme_Keyword:

DOI/USGS/CMG > COASTAL AND MARINE GEOLOGY, U.S. GEOLOGICAL SURVEY, U.S. DEPARTMENT OF INTERIOR

Theme:

Theme_Keyword_Thesaurus: GCMD Instrument
Theme_Keyword:

EARTH REMOTE SENSING INSTRUMENTS > PASSIVE REMOTE SENSING > PHOTON/OPTICAL DETECTORS > CAMERAS > CAMERAS

Place:

Place_Keyword_Thesaurus: Geographic Names Information System
Place_Keyword: Crocker Reef
Place_Keyword: Florida Keys
Place_Keyword: Florida

Stratum:

Stratum_Keyword_Thesaurus: Oregon Geospatial Enterprise Office (GEO Stratum Keyword
Stratum_Keyword: epipelagic

Temporal:

Temporal_Keyword_Thesaurus: None
Temporal_Keyword: 2014

Access_Constraints: None
Use_Constraints:

Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. The U.S. Geological Survey requests to be acknowledged as originator of these data in future products or derivative research.

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: David Zawada
Contact_Organization:

U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center, St. Petersburg, FL

Contact_Position: Research Oceanographer
Contact_Address:

Address_Type: mailing and physical address
Address: 600 4th Street South
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701
Country: USA

Contact_Voice_Telephone: 727 502-8132
Contact_Facsimile_Telephone: 727 502-8181
Contact_Electronic_Mail_Address: dzawada@usgs.gov
Hours_of_Service: M-F, 9:00-5:00 ET

Data_Set_Credit:

Acknowledgment of the U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center, as a data source would be appreciated in products developed from these data, and such acknowledgment as is standard for citation and legal practices for data source is expected. Sharing of new data layers developed directly from these data would also be appreciated by the U.S. Geological Survey staff. Users should be aware that comparisons with other datasets for the same area from other periods may be inaccurate because of inconsistencies resulting from changes in photointerpretation, mapping conventions, and digital processes over time. These data are not legal documents and are not to be used as such.

Security_Information:

Security_Classification_System: Unclassified
Security_Classification: Unclassified
Security_Handling_Description: None

Native_Data_Set_Environment:

Microsoft Windows 7 Enterprise Service Pack 1; Esri ArcCatalog 10.4.1.5686

Cross_Reference:

Citation_Information:

Originator: Zawada, D.G.
Publication_Date: 2003
Title: Image processing of underwater multispectral imagery
Series_Information:

Series_Name: IEEE Journal of Oceanic Engineering
Issue_Identification: v. 28(4), p. 583-594

Online_Linkage: https://doi.org/10.1109/JOE.2003.819157

Cross_Reference:

Citation_Information:

Originator: Lidz, B.H. and D.G. Zawada
Publication_Date: 2013
Title:

Possible Return of Acropora cervicornis at Pulaski Shoal, Dry Tortugas National Park, Florida

Series_Information:

Series_Name: Journal of Coastal Research
Issue_Identification: v. 29, p. 256-271

Online_Linkage: https://doi.org/10.2112/JCOASTRES-D-12-00078.1

Cross_Reference:

Citation_Information:

Originator: Zawada, D.G., Thornton, L., Thompson, P., Resnick, J.
Publication_Date: 2016
Title: ATRIS Seafloor Images--Crocker Reef, Florida, 2014
Series_Information:

Series_Name: U.S. Geological Survey Data Release
Issue_Identification: doi:10.5066/F7SF2T9Z

Online_Linkage: https://doi.org/10.5066/F7SF2T9Z

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

Classification data derived from sATRIS images (Zawada and others, 2016) were plotted on top of a DigitalGlobe WorldView-2 satellite image in ArcMap 10.3.1. Polygons were manually drawn to denote areas with a given habitat type.

Logical_Consistency_Report:

Data cover area specified for this project without known issues.

Completeness_Report:

This dataset is considered complete for the information presented, as described in the abstract section. Users are advised to read the rest of the metadata record carefully for aditional details.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

Habitats are referenced to a satellite image with 2-meter accuracy. With the introduction of human drawing error, USGS staff cite the horizontal accuracy of the habitat boundries to be within 5 meters.

Vertical_Positional_Accuracy:

Vertical_Positional_Accuracy_Report:

A formal accuracy assessment of the vertical positional information in the dataset has either not been conducted, or is not applicable.

Lineage:

Process_Step:

Process_Description:

High-resolution, geo-located images of the seafloor were captured between June 24 and 25, to characterize the seafloor and ground truth benthic habitat mapping efforts. The sATRIS was deployed from the USGS research vessel (R/V) Sallenger, a Parker 2530 boat, running at a nominal speed of 2 knots and following pre-determined survey tracklines. GPS data were simultaneously collected at a fixed land-based location (24° 57' 12.07059", -80° 35' 12.43033") and on the R/V Sallenger during image acquisition using Ashtech Z-Xtreme GPS receivers. In this study, sATRIS images were collected at a rate of 5 hertz (Hz) and the GPS data at 1 Hz. The GPS data were differentially corrected using GrafNav Version 8.40.5121, converted to the North American Datum of 1983 (2011) and the North American Vertical Datum of 1988 (using the GEOID12A model) using in-house software, and have sub-decimeter accuracy. Please note that these data are not suitable for navigational use, nor for determining absolute elevation measurements.

Process_Date: 20150123
Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: BJ Reynolds
Contact_Organization:

U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center, St. Petersburg, FL

Contact_Position: Engineering Technician
Contact_Address:

Address_Type: mailing and physical address
Address: 600 4th Street South
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701
Country: USA

Contact_Voice_Telephone: 727 502-8067
Contact_Electronic_Mail_Address: breynolds@usgs.gov
Hours_of_Service: M-F, 8:00-4:00 ET

Process_Step:

Process_Description:

sATRIS images were manually classified based on the predominant benthic cover in a given image, and labeled as hardbottom, rubble, sand, or seagrass. Because of extensive overlap between sATRIS images, only every fourth image was classified. To fill gaps between sATRIS images and create a contiguous set of polygons, a DigitalGlobe WorldView-2 satellite image (10DEC04160950-M1BS-052442009010_04_P001.ntf, acquired on December 4, 2010) was used as a synoptic reference. This satellite image has a spatial resolution of 2 meters. A colored dot was plotted at the location of each classified image using ArcMap 10.3.1. Each classification category was assigned a unique color. Polygons encompassing like-colored dots and corresponding areas in the satellite image were drawn by hand in ArcMap. All polygons for each classification category were merged together and saved in a single shapefile. For additional processing details, see Lidz and Zawada (2013).

Process_Date: 20150402
Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Dave Zawada
Contact_Organization:

U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center, St. Petersburg, FL

Contact_Position: Research Oceanographer
Contact_Address:

Address_Type: mailing and physical address
Address: 600 4th Street South
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701
Country: USA

Contact_Voice_Telephone: 727 502-8132
Contact_Electronic_Mail_Address: dzawada@usgs.gov
Hours_of_Service: M-F, 9:00-5:00 ET

Process_Step:

Process_Description:

Raw sATRIS images exhibit barrel distortion due to the wide-angle camera lens. The images in this data release were corrected using an in-house image de-warping algorithm (Zawada, 2003). These data are stored on hard drives and archived at the U.S. Geological Survey office in St. Petersburg, Florida.

Process_Date: 20150507
Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Dave Zawada
Contact_Organization:

U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center, St. Petersburg, FL

Contact_Position: Research Oceanographer
Contact_Address:

Address_Type: mailing and physical address
Address: 600 4th Street South
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701
Country: USA

Contact_Voice_Telephone: 727 502-8132
Contact_Electronic_Mail_Address: dzawada@usgs.gov
Hours_of_Service: M-F, 9-5 ET

Process_Step:

Process_Description: Created metadata in Notepad++
Process_Date: 20160907
Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Dave Zawada
Contact_Organization:

U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center, St. Petersburg, FL

Contact_Position: Research Oceanographer
Contact_Address:

Address_Type: mailing and physical address
Address: 600 4th Street South
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701
Country: USA

Contact_Voice_Telephone: 727 502-8132
Contact_Electronic_Mail_Address: dzawada@usgs.gov
Hours_of_Service: M-F, 9:00-5:00 ET

Process_Step:

Process_Description:

Added keywords section with USGS persistent identifier as theme keyword.

Process_Date: 20201013
Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey
Contact_Person: VeeAnn A. Cross

Contact_Position: Marine Geologist
Contact_Address:

Address_Type: Mailing and Physical
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598

Contact_Voice_Telephone: 508-548-8700 x2251
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: vatnipp@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: G-polygon
Point_and_Vector_Object_Count: 4

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
False_Easting: 500000.0
False_Northing: 0.0

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:

Abscissa_Resolution: 0.6096
Ordinate_Resolution: 0.6096

Planar_Distance_Units: meters

Geodetic_Model:

Horizontal_Datum_Name: North American Datum of 1983 (2011)
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378137.0
Denominator_of_Flattening_Ratio: 298.257222101

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: Habitat.shp
Entity_Type_Definition:

This file contains total area measurements for each habitat type that were identified using sATRIS images collected in June 2014 from Crocker Reef, Florida.

Entity_Type_Definition_Source: USGS

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: Id
Attribute_Definition: Feature number
Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 3

Attribute:

Attribute_Label: Habitat_Nm
Attribute_Definition: The predominant habitat type used in the map.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Hardbottom
Enumerated_Domain_Value_Definition:

This category commonly harbors varieties of octocorals, sponges, algae, the fleshy colonial zoanthid Palythoa caribaeorum, the fire corals Millepora alcicornis and M. complanata, other encrusting reef-associated organisms, coral skeletons, rubble and sands, and a few isolated live, stony, head-coral species.

Enumerated_Domain_Value_Definition_Source: USGS

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Rubble
Enumerated_Domain_Value_Definition:

This category consisted primarily of clearly identifiable A. cervicornis sticks intermixed with carbonate fragments of other shapes and sizes of indeterminate origins.

Enumerated_Domain_Value_Definition_Source: USGS

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Sand
Enumerated_Domain_Value_Definition:

This category did not differentiate between coarse- and fine-grained size fractions, although clarity of the ATRIS imagery would have allowed for such distinction.

Enumerated_Domain_Value_Definition_Source: USGS

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Seagrass
Enumerated_Domain_Value_Definition:

This category included the most prevalent type of seagrass-the turtle grass Thalassia testudinum-occasionally mixed with the manatee grass Syringodium filiforme.

Enumerated_Domain_Value_Definition_Source: USGS

Attribute:

Attribute_Label: Area
Attribute_Definition: Total area of each feature type, measured in square meters.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 133709
Range_Domain_Maximum: 695120

Overview_Description:

Entity_and_Attribute_Overview:

The geographic information system (GIS) data are provided as a .zip file comprised of an Esri shapefile and accompanying metadata. The entity and attribute information provided here describes the tabular data associated with the dataset. 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 was 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_Organization_Primary:

Contact_Organization: U.S. Geological Survey
Contact_Person: Dave Zawada

Contact_Position: Research Oceanographer
Contact_Address:

Address_Type: mailing and physical address
Address: 600 4th Street South
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701
Country: USA

Contact_Voice_Telephone: 727 502-8132
Hours_of_Service: M-F, 9:00-5:00 ET

Resource_Description: Habitat.shp
Distribution_Liability:

Although these data have been processed successfully on a computer system at the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data on any other system, or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. The USGS shall not be held liable for improper or incorrect use of the data described or contained herein. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: SHP
Format_Version_Number: 1
Format_Specification: Vector Digital Dataset (Polygon)

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

https://coastal.er.usgs.gov/data-release/doi-F77942T0/data/CRKR2014_HABITAT.zip

Fees: None
Ordering_Instructions: Contact U.S. Geological Survey.
Turnaround: Vary

Custom_Order_Process: Contact U.S. Geological Survey for details.

Metadata_Reference_Information:

Metadata_Date: 20201013
Metadata_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Dave Zawada
Contact_Organization:

U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center, St. Petersburg, FL

Contact_Position: Research Oceanographer
Contact_Address:

Address_Type: mailing and physical address
Address: 600 4th Street South
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701
Country: USA

Contact_Voice_Telephone: 727 502-8132
Contact_Electronic_Mail_Address: dzawada@usgs.gov
Hours_of_Service: M-F, 9:00-5:00 ET

Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time

This page is <https://cmgds.marine.usgs.gov/catalog/spcmsc/CRKR2014_HABITAT_metadata.html>