FLORIDA KEYS CORAL PLATFORMS

Metadata:
Identification_Information:
Citation:
Citation_Information:
Originator: Florida Marine Research Institute (FMRI)
Publication_Date: 19920430
Title: FLORIDA KEYS CORAL PLATFORMS
Geospatial_Data_Presentation_Form: vector digital data
Other_Citation_Details: The Florida Keys
Online_Linkage: <http://www.floridamarine.org/>
Larger_Work_Citation:
Citation_Information:
Other_Citation_Details: Source - 1992 Automated - 2001
Description:
Abstract:
This dataset contains the locations of various types of coral platforms along the coastline of the Florida Keys. This data layer is an update of CORALT released with FGDL Version 2003.
Purpose:
The Florida Marine Research Institute (FMRI) is a part of the state's Fish & Wildlife Conservation Commission (FWC). FMRI conducts applied research and provides synthesized information used to better manage our marine resources.
Supplemental_Information: POLYGON
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 19920430
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -87.429040
East_Bounding_Coordinate: -79.872251
North_Bounding_Coordinate: 30.983191
South_Bounding_Coordinate: 24.492815
Keywords:
Theme:
Theme_Keyword_Thesaurus: NONE
Theme_Keyword: Coral Reef platforms
Place:
Place_Keyword: Florida
Access_Constraints: NONE
Use_Constraints:
THE DATA INCLUDED IN FGDL ARE 'AS IS' AND SHOULD NOT BE CONSTRUED AS LEGALLY BINDING. THE UNIVERSITY OF FLORIDA GEOPLAN CENTER SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED AS A RESULT OF USING, MODIFYING, CONTRIBUTING OR DISTRIBUTING THE MATERIALS

A note about data scale:

Scale is an important factor in data usage. Certain scale datasets are not suitable for some project, analysis, or modelling purposes. Please be sure you are using the best available data.

1:24000 scale datasets are recommended for projects that are at the county level. 1:24000 data should NOT be used for high accuracy base mapping such as property parcel boundaries.

1:100000 scale datasets are recommended for projects that are at the multi-county or regional level. 1:125000 scale datasets are recommended for projects that are at the regional or state level or larger.

Vector datasets with no defined scale or accuracy should be considered suspect. Make sure you are familiar with your data before using it for projects or analysis. Every effort has been made to supply the user with data documentation. For additional information, see the References section and the Data Source Contact section of this documentation. For more information regarding scale and accuracy, see our webpage at: <http://geoplan.ufl.edu/education.html>

These data are based on interpretation of available information and should not be construed as legally binding.

Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Florida Geographic Data Library (FGDL)
Contact_Address:
Address_Type: mailing address
Address: 431 Architecture PO Box 115706
City: Gainesville
State_or_Province: Florida
Postal_Code: 32611-5706
Contact_Electronic_Mail_Address: Web site: <http://www.fgdl.org>
Contact_Electronic_Mail_Address: Technical Support: <http://www.fgdl.org/fgdlfeed.html>
Contact_Electronic_Mail_Address: For FGDL Software: <http://www.fgdl.org/software.html>
Contact_Electronic_Mail_Address:
FGDL Frequently Asked Questions: <http://www.fgdl.org/fgdlfaq.html>
Contact_Electronic_Mail_Address: FGDL Mailing Lists: <http://www.fgdl.org/fgdl-l.html>
Cross_Reference:
Citation_Information:
Other_Citation_Details:
FMRI For more information contact the FWC-FMRI (Florida Fish and Wildlife Conservation Commission-Florida Marine Research Institute) GIS data librarian at gislibrarian@fwc.state.fl.us <http://ocean.floridamarine.org/mrgis/viewer.htm>
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Attribute accuracy is relied on the integrity of the attribute information within the originl data layer
Quantitative_Attribute_Accuracy_Assessment:
Attribute_Accuracy_Explanation:
This data set contains polygons representing 24 bottom-types within the Florida Keys, Biscayne Bay, and Florida Bay. Three modifiers are also used to describe special cases: Banks, dredged areas, restoration areas. Items containing generic groupings (corals, patchy seagrass, continuous seagrass, etc.) have been added to allow the user to draw/query data on a greater scale.
Logical_Consistency_Report:
Certain node/geometry and topology (GT)-polygon/chain relationships are collected or generated to satisfy topological requirements. Some of these requirements include: chains must begin and end at nodes, chains must connect to each other at nodes, chains do not extend through nodes, left and right GT-polygons are defined for each chain element and are consistent throughout the transfer, and the chains representing the limits of the file (neatline) are free of gaps. The neatline is generated by connecting the four corners of the digital file, as established during initialization of the digital file. All data outside the enclosed region are ignored and all data crossing these geographically straight lines are clipped at the neatline. (Exception: During the QA/QC process all data is examined and if errors are found and corrections are possible, then data is corrected accordingly. This process is documented in the Process_Step.) Data within a specified tolerance of the neatline are snapped to the neatline. Neatline straightening aligns the digitized edges of the digital data with the generated neatline, that is, with the longitude/latitude lines in geographic coordinates. All internal polygons are tested for closure. Certain attributes and/or entities, e.g. closure line, convey data quality information. When information to be encoded in the subfield is known to be not applicable (undefined, not relevant), then the subfield is valued by a string of "9s"; and when the information to be encoded is relevant but unknown (or missing), then the subfield is valued by a string of "9s."
Completeness_Report:
This data is provided 'as is' by GeoPlan and is complete to our knowledge.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
This data is provided 'as is' and its horizontal positional accuracy has not been verified by GeoPlan
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report:
This data is provided 'as is' and its horizontal positional accuracy has not been verified by GeoPlan
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: Florida Marine Research Institute
Publication_Date: 20010000
Title: FLORIDA KEYS CORAL PLATFORMS
Geospatial_Data_Presentation_Form: vector digital data
Online_Linkage: <http://www.floridamarine.org/>
Source_Scale_Denominator: 1:48,000
Type_of_Source_Media: Downloaded Online
Source_Citation_Abbreviation: FMRI
Source_Contribution: Spatial Attribute Information
Process_Step:
Process_Description:
The platform reefs in this data were selected out from FMRI's South Florida Benthics 1992 dataset. This data was generated by FMRI and NOAA staff through 1:48,000 aerial photographs and digitally compiled.
Source_Used_Citation_Abbreviation: FMRI
Process_Date: 1992
Process_Step:
Process_Description:
Data generated by FMRI and NOAA staff, along with ecologists contracted by NOAA and FMRI. The aerial photographs used in producing the maps were taken and digitally compiled by NOAA's NGS staff. Contracted ecologists and FMRI staff developed the classification scheme. FKNMS staff provided support for the photo interpretation, delineation, and ground-truthing activities and for reviewing the benthic classifications. NGS staff digitally compiled the photographic information. Staff from SEA converted the NGS digital files into a Geographic Information System (GIS) and then performed QA/QC on those files. Staff from both FMRI and ORCA designed and produced the atlas. Aerial Photography Natural-color aerial photographs of the Florida Keys region were taken by NOAA's Remote Sensing Division during flights made from December 1991 through April 1992. A Wild RC-30 camera mounted in a Cessna Citation II Fanjet aircraft was used. The source photography had a nominal photo scale of 1:48,000 (1 cm = 480 m). Each photograph covered an area of approximately 160 km2. An 80% endlap and 60% sidelap of adjacent photographs ensured that coverage would be complete and that an adequate number of reference locations would be present for photogrammetric measurements. Approximately 450 photos provided monoscopic coverage and were used to delineate benthic habitats. Establishing a Habitat-Classification Scheme Two recognized ecologists, both with local knowledge of the Florida Keys and extensive expertise in marine habitats, along with FMRI staff, developed the hierarchical classification scheme used in this atlas. The habitat-classification scheme is composed of 24 classes of benthic communities in 4 major habitat categories: corals, seagrasses, hardbottom, and bare substrate. Dredge zones, banks, and restoration areas located within these communities are also denoted. Photointerpretation Photos were interpreted by the wo ecologists and FMRI staff. They determined and then delineated the types of benthic habitats found in the aerial photos. The minimum habitat area delineated was 0.5 ha. However, patch reefs (herein considered part of the coral reef benthic habitat) of less than 0.5 ha were delineated as points. Ground truthing was conducted to verify that benthic habitats were properly identified on the aerial photographs. Researchers were able to ground truth most benthic communities while snorkeling; scuba gear enabled them to ground truth for those communities located in deeper or turbid waters. Field information about the benthic habitat and site GPS locations was recorded. The ecologists and FMRI staff reviewed photos for content and accuracy and then sent them to NOAA for digital compilation. Digital Compilation of Aerial Photographs NGS cartographers inspected each photograph for completeness of delineations, photo discrepancies, and areas of turbidity. Cartographers used a stereographic analytical plotter with NOAA's in-house software to digitize and label the benthic communities and shoreline features seen on the aerial photos. In many cases, the cartographers were able to provide additional detail because of the three-dimensional views permitted by the analytical plotter. The compiled data were checked by NGS staff. Quality Control - Data were reviewed in three phases: 1) a review of digital data to ensure line and attribute completeness, 2) a comparison between the 1:48,000-scale maps of the compiled data and the original source photos, and 3) a comparison between the 1:24,000-scale maps of the compiled data and the original delineated photos to determine the positional accuracy of polygonal shapes and attributes. Positional Accuracy Standards - Aerial photographs used to generate the digital data for the maps in this atlas were taken between December 1991 and April of 1992. Thus, the atlas represents the distribution of benthic habitats in the Keys over this time period. The horizontal accuracy of well-defined points (clearly identifiable, immobile objects such as the tops of radio towers or the corners of wharves) is within 2 m. The horizontal accuracy of continuous data (e.g., benthic habitats) ranges from 5 to 10 m, depending on the habitat class. Certain benthic features, such as patch reefs and spur-and-groove reefs, have a horizontal accuracy of 5 m. These habitats are composed of massive rock and coral formations that are stable in position over time and are resistant to all but the most powerful physical forces. Coral reefs, once established, tend to remain for decades or centuries. Other habitats-such as seagrass beds, hardbottom communities, and bare substrate-are less stable. These benthic features are positionally accurate to within 10 m. Physical factors such as water currents and hurricanes and biological factors such as seasonal growth and die-off affect the distribution and stability of these benthic habitats along the ocean's floor. Plant densities within seagrass communities may increase or decrease over a period of months or years. Hardbottom habitats may become covered by sediment and then by seagrasses. GIS Data Layers To ensure that the digital data sets in this atlas were geographically and attributionally correct, SEA staff used a series of data-translation and topology-construction steps while incorporating the data into a GIS, a sophisticated computer mapping and analysis software. All the individual GIS digital data sets were then combined to form several regional mosaics. Each region's data set was sent to FMRI for final quality control and assembly. FMRI inspected these data sets to ensure that no errors remained. The regional data sets were then joined together to make an FKNMS-wide, benthic-habitat data set. The resulting data set was inspected one last time, with particular scrutiny paid to the regions of overlap, where errors would most likely occur. The delineated aerial photos were referred to at every step of this process.
Source_Used_Citation_Abbreviation: FMRI
Process_Date: 20010000
Process_Step:
Process_Description:
GeoPlan downloaded this data in shapefile format from the FMRI FTP site: ftp.floridamarine.org/users/ism/datareq/ and projected to FGDL Albers HPGN. When received, the data was in Geographic projection, Datum: NAD 83, Spheroid: GRS1980.

-Reprojected data to FGDL Albers HPGN -Renamed shapefile from platformreef_bisbaykeys_poly to CORALT -Deleted OBJECTID, CORALPLAT_, AND CORALPLAT_ID fields from attribute table -Deleted SHAPE_AREA and SHAPE_LEN from attribute table -Created DESCRIPT field based on A_CODE

Process_Date: 20030000
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: 1554
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Map_Projection:
Map_Projection_Name: Albers Conical Equal Area
Albers_Conical_Equal_Area:
Standard_Parallel: 24.000000
Standard_Parallel: 31.500000
Longitude_of_Central_Meridian: -84.000000
Latitude_of_Projection_Origin: 24.000000
False_Easting: 400000.000000
False_Northing: 0.000000
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.002048
Ordinate_Resolution: 0.002048
Planar_Distance_Units: meters
Geodetic_Model:
Horizontal_Datum_Name: D_North_American_1983_HARN
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257222
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: CORALT
Entity_Type_Definition: CORALT.DBF
Entity_Type_Definition_Source: FMRI
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: AREA
Attribute_Definition: Area of the polygon in square meters
Attribute_Definition_Source: FMRI
Attribute:
Attribute_Label: PERIMETER
Attribute_Definition: Perimeter of the polygons in meters
Attribute_Definition_Source: FMRI
Attribute:
Attribute_Label: A_CODE
Attribute_Definition: Alphabetic code used to describe bottom type. Benthics Codes:
Attribute_Definition_Source: FMRI
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: CPSS
Enumerated_Domain_Value_Definition: Reef Containing Shallow Spur And Groove
Enumerated_Domain_Value_Definition_Source: FMRI
Enumerated_Domain:
Enumerated_Domain_Value: CPSD
Enumerated_Domain_Value_Definition: Reef Containing Drowned Spur And Groove
Enumerated_Domain_Value_Definition_Source: FMRI
Enumerated_Domain:
Enumerated_Domain_Value: CPR
Enumerated_Domain_Value_Definition: Remnant Reef
Enumerated_Domain_Value_Definition_Source: FMRI
Enumerated_Domain:
Enumerated_Domain_Value: CB
Enumerated_Domain_Value_Definition: Back Reef
Enumerated_Domain:
Enumerated_Domain_Value: CR
Enumerated_Domain_Value_Definition: Reef Rubble
Attribute:
Attribute_Label: FKNMS
Attribute_Definition:
Indicates whether a polygon is part of the Florida Keys National Marine Sanctuary (FKNMS)
Attribute_Definition_Source: FMRI
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 1
Enumerated_Domain_Value_Definition: Part of FKNMS
Enumerated_Domain_Value_Definition_Source: FMRI
Enumerated_Domain:
Enumerated_Domain_Value: 0
Enumerated_Domain_Value_Definition: Not a part of FKNMS
Enumerated_Domain_Value_Definition_Source: FMRI
Attribute:
Attribute_Label: DESCRIPT
Attribute_Definition: Based on A_CODE
Attribute_Definition_Source: GeoPlan
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Florida Geographic Data Library (FGDL)
Contact_Address:
Address_Type: mailing address
Address: 431 Architecture PO Box 115706
City: Gainesville
State_or_Province: Florida
Postal_Code: 32611-5706
Country: United States
Contact_Electronic_Mail_Address: Web site: <http://www.fgdl.org>
Contact_Electronic_Mail_Address: Technical Support: <http://www.fgdl.org/fgdlfeed.html>
Contact_Electronic_Mail_Address: For FGDL Software: <http://www.fgdl.org/software.html>
Contact_Electronic_Mail_Address:
FGDL Frequently Asked Questions: <http://www.fgdl.org/fgdlfaq.html>
Contact_Electronic_Mail_Address: Mailing list for FGDL: <http://www.fgdl.org/fgdl-l.html>
Resource_Description: CORALT, FGDL Version 2003
Distribution_Liability:
THE FGDL DATA AS PROVIDED BY CONTRIBUTING ORGANIZATIONS AND ANY PROGRAMMING SOFTWARE CREATED BY THE UNIVERSITY OF FLORIDA GEOPLAN CENTER (COLLECTIVELY THE 'MATERIALS') ARE COPYRIGHTED BY THE UNIVERSITY OF FLORIDA GEOPLAN CENTER FOR THE FGDL CONTRIBUTING AGENCIES AND ORGANIZATIONS (THE 'DATA PROVIDERS'). DO NOT REPRODUCE, REDISTRIBUTE OR RESELL THE MATERIALS, OR PROVIDE THE MATERIALS FOR FREE TO CUSTOMERS OR CLIENTS, OR PLACE THE MATERIALS FOR DOWNLOAD ON A WEBSITE. ADDITIONALLY, WHEN USING FGDL DATA OR SOFTWARE IN PROJECTS, MAPS, ETC.; YOU AGREE TO ACKNOWLEDGE THE FGDL AS A DATA SOURCE. THE MATERIALS ARE PROVIDED 'AS IS'. THE UNIVERSITY OF FLORIDA GEOPLAN CENTER MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE QUALITY OR SUITABILITY OF THE MATERIALS, EITHER EXPRESSLY OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT. THE UNIVERSITY OF FLORIDA GEOPLAN CENTER MAKES NO WARRANTIES, GUARANTIES OR REPRESENTATIONS AS TO THE TRUTH, ACCURACY OR COMPLETENESS OF THE DATA PROVIDED BY THE FGDL CONTRIBUTING ORGANIZATIONS. THE UNIVERSITY OF FLORIDA GEOPLAN CENTER SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED AS A RESULT OF USING, MODIFYING, CONTRIBUTING OR DISTRIBUTING THE MATERIALS.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Transfer_Size: 2.107
Technical_Prerequisites:
This data is intended for use with a Geographic Information Systems or Remote Sensing software package.
Metadata_Reference_Information:
Metadata_Date: 20040929
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Florida Marine Research Institute
Contact_Person: Chris Anderson
Contact_Address:
Address_Type: mailing and physical address
Address: 100 8th Ave SE
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701-5095
Contact_Voice_Telephone: (727) 896-8626
Contact_Electronic_Mail_Address: gislibrarian@fwc.state.fl.us
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
Metadata_Extensions:
Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>
Profile_Name: ESRI Metadata Profile
Generated by mp version 2.7.33 on Wed Sep 29 14:06:21 2004