Geodataset Name:       CGATON_NOV16
Geodataset Type:       SHAPEFILE
Geodataset Feature:    Point
Feature Count:         18674

DATA SOURCE(S):                    Florida Fish and Wildlife Conservation Commission-Fish and Wildlife Research Institute
SCALE OF ORIGINAL SOURCE MAPS:     Unknown
GEODATASET EXTENT:                 State of Florida

PUBLICATION DATE:                  20170112
TIME PERIOD OF CONTENT:            20161116
DOWNLOAD LINK:                     http://www.fgdl.org/metadataexplorer/explorer.jsp

FEATURE ATTRIBUTE TABLES:

Datafile Name: CGATON_NOV16.DBF

FEATURE ATTRIBUTE TABLES CODES AND VALUES:

Item	Item Description
OBJECTID	Internal feature number.
Shape	Feature geometry.
GENERATED	Date generated
DISTRICT	Coast Guard District 7 = Seventh Coast Guard District 8 = Eighth Coast Guard District
LLNR	Light List Number
AID_NAME	Aid Name
AID_LABEL	Aid Label - number and letter (from Aid_Name)
AID_NUM	Aid Number (from Aid Name)
AID_TYPE	Aid Type FD = Federal PA = Private
ODD_EVEN	Indicates if numbered aids are odd or even numbers O = Odd E = Even
ASSIGNED_L	Assigned Latitude
LATDD	Latitude in decimal degrees
ASSIGNED_1	Assigned Longitude
LONDD	Longitude in decimal degrees
STRUCTURE_	Structure remarks
XREF	Undefined by Source
CHARACTERI	Light Characteristics F = Fixed FL = Flashing FL (2) = Group Flashing ISO = Isophase MO = Morse Code OC = Occulting Q = Quick (Flashing) S = Seconds Y = Yellow R = Red W = White G = Green
NIGHT_DAY	Day or night beacon. Can be Day, Night, or Both
REMARKS	Remarks
AID_LOCATI	Aid location comments
DESCRIPT1	Abbreviated description of aid type (from Aid_Name) DBN = Daybeacon LB = Lighted buoy LT = Light RACN = Racon RF = Range front light RR = Range rear light ULB = Unlighted buoy
DESCRIPT2	Full description of aid type (from Aid_Name)
SYMBOL	Concatenation of DESCRIPT and ODD_EVEN and AIS. Used to define categories for symbology
AIS	Undefined by Source
DESCRIPT	FGDL added field based on AID_NAME
FGDLAQDATE	FGDL added field based on date downloaded from source
AUTOID	Unique ID added by GeoPlan

USER NOTES:

Records without coordinates were removed.

Aids without coordinates have been removed. Otherwise this data set is complete as the source data provided by the Coast Guard.

GeoPlan relied on the integrity of the attribute information within the original data.

Prior to July 1, 2004, the Fish and Wildlife Research Institute (FWRI) was known as the Florida Marine Research Institute (FMRI). The institute name has not been changed in historical data sets or references to work completed by the Florida Marine Research Institute. The institute name has been changed in references to ongoing research, new research, and contact information.

This data set represents a GIS layer of ATONs as of November 16, 2016; with spatial extent of the Seventh Coast Guard District plus the Gulf of Mexico area from the Eighth Coast Guard District. These data are not to be used for navigation or positional referencing. Users are instructed to consult the appropriate navigational chart, notice to mariners, and light list for any purpose other than natural resource conservation planning. Due to the possibility of unknown errors in reporting, projection or datums the accuracy of these data are not certified. The existence, position and description of features might have changed since data were originally compiled.

FWRI has not attempted to verify horizontal positional accuracy, but typographical errors may exist in the source data.

This data is provided 'as is' and its vertical positional accuracy has not been verified by GeoPlan

These data are not to be used for navigation or positional referencing. Users are instructed to consult the appropriate navigational chart, notice to mariners, and light list for any purpose other than natural resource conservation planning. Due to the possibility of unknown errors in reporting, projection or datums the accuracy of these data are not certified. The existence, position and description of features might have changed since data were originally compiled. Users are encouraged to read and fully comprehend the metadata record prior to using these data. Please acknowledge the Florida Fish and Wildlife Conservation Commission (FWC) as the data source for any products developed from these data. Users should be aware that comparison with other data sets for the same area may be inaccurate due to inconsistencies resulting from changes in mapping conventions, data collection techniques, and computer processes over time. FWC shall not be liable for improper or incorrect use of these data.

The Florida Geographic Data Library is a collection of Geospatial Data compiled by the University of Florida GeoPlan Center with support from the Florida Department of Transportation. GIS data available in FGDL is collected from various state, federal, and other agencies (data sources) who are data stewards, producers, or publishers. The data available in FGDL may not be the most current version of the data offered by the data source. University of Florida GeoPlan Center makes no guarantees about the currentness of the data and suggests that data users check with the data source to see if more recent versions of the data exist. Furthermore, the GIS data available in the FGDL are provided 'as is'. 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 data sources. 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 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 modeling 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

REFERENCES:

FWC-FWRI (Florida Fish and Wildlife Conservation Commission Fish and Wildlife Research Institute) http://myfwc.com/research/gis/ USCG ATON home: http://www.uscgaan.com/federal_aton%27s.htm USCG ATON pamphlet: http://www.uscgboating.org/ATON/index.html USCG ATON manual: http://www.uscg.mil/directives/cim/16000-16999/CIM_16500_7A.pdf USCG ATON Structures manual: http://www.uscg.mil/directives/cim/16000-16999/CIM_16500_25A.pdf

DATA LINEAGE SUMMARY:

The source data were downloaded as XML Spreadsheets from the Coast Guard Light List Weekly Updates site. FWRI reformatted the latitude and longitude to decimal degrees in order to convert to shapefile using the Add X,Y tool in ArcMap. FWRI also added additional attributes based on the information provided by the coast guard in order to create symbology fields. See the Entity and Attribute Section for more information. Process Date: 20161116 GeoPlan received this data in shapefile format via FTP from FWRI on June 21, 2017. The data was received as a shapefile in projection: NAD_1983_2011_Florida_GDL_Albers. The dataset was then projected from NAD_1983_2011_Florida_GDL_Albers to FGDL Albers HARN using NAD_1983_To_HARN_Florida transformation. This is the first time we've received this dataset in NAD_1983_2011_Florida_GDL_Albers. Previously it came in a custom PCS Albers projection. Projecting using the following transformation: nad_1983_harn_to_nad_1983_2011 has introduced a shift between 0.5 and 1 meter. The shapefile received had 22221 records some of which fell outside the FGDL extent. The records that fell within the FGDL extent were selected out and exported to a new shapefile. Therefore this data set does not represent all aids to navigation for the Seventh and Eighth Coast Guard Districts. The final FGDL data set has 18674 records. For a complete Seventh and Eighth USCG District data set visit the FWRI site at: http://geodata.myfwc.com/ - Reprojected data to FGDL Albers HARN - Changed name of original DESCRIPT field to DESCRIPT1 - Added DESCRIPT field based on AID_NAME - Added a FGDLAQDATE field based on date received from source - Renamed shapefile from atons_uscg_point to cgaton_nov16 Process Date: 20160620 Dataset copied. Process Date: 20171103

MAP PROJECTION PARAMETERS:

Projection                          ALBERS
Datum                               HPGN
Units                               METERS
Spheroid                            GRS1980
1st Standard Parallel               24  0  0.000
2nd Standard Parallel               31 30  0.000
Central Meridian                   -84 00  0.000
Latitude of Projection's Origin     24  0  0.000
False Easting (meters)              400000.00000
False Northing (meters)             0.00000

DATA SOURCE CONTACT (S):

Name:
Abbr. Name:
Address:


Phone:

Web site:
E-mail:
Contact Person:
         Phone:
        E-mail:

Florida Fish and Wildlife Conservation Commission-Fish and Wildlife Research Institute
FFWCC-FWRI
100 Eighth Avenue Southeast
St. Petersburg, Florida
33701
727-896-8626


http://geodata.myfwc.com/datasets/aids-to-navigation-southeast-united-states
GISLibrarian@MyFWC.com
GIS Librarian

Name:                   FLORIDA GEOGRAPHIC DATA LIBRARY
Abbr. Name:             FGDL
Address:                Florida Geographic Data Library
                        431 Architecture Building
                        PO Box 115706
                        Gainesville, FL  32611-5706
Web site:               http://www.fgdl.org

Contact FGDL: 

      Technical Support:	        http://www.fgdl.org/fgdlfeed.html
      FGDL Frequently Asked Questions:  http://www.fgdl.org/fgdlfaq.html
      FGDL Mailing Lists:		http://www.fgdl.org/fgdl-l.html
      For FGDL Software:                http://www.fgdl.org/software.html