FLORIDA GEOGRAPHIC DATA LIBRARY DOCUMENTATION

TITLE: SPATIAL EXTENT OF THE SUBMERGED LANDS ACT IN FLORIDA - 2016 

Geodataset Name:       SLA_SEP16
Geodataset Type:       SHAPEFILE
Geodataset Feature:    Polygon
Feature Count:         1
GENERAL DESCRIPTION:
This dataset contains the geographic extent of the Submerged Lands Act as it applies to the coastal regions of the State of Florida. The Submerged Lands Act (43 U.S.C. 1301 et seq.) grants coastal states title to natural resources located within their coastal submerged lands and navigable waters out to three geographical miles from their coastlines (three marine leagues for Texas and Florida s Gulf of Mexico coastlines). The Submerged Lands Act defines natural resources to include oil, gas, and all other minerals, and fish, shrimp, oysters, clams, crabs, lobsters, sponges, kelp, and other marine animal and plant life, yet expressly excludes water power, or the use of water for the production of power 43 U.S.C. 1301(e). The term coast line is the line of ordinary low water along that portion of the coast which is in direct contact with the open sea and the line marking the seaward limit of inland waters (43 U.S.C. 1301(c)). Some boundary delineations are approximated, including areas in Hawaii, Alaska, and Washington State. The official delineation of the Submerged Lands Act in these locations has not yet been established by BOEM. Please reference BOEM s official Submerged Lands Act Boundary in these locations to determine where this boundary is approximated and where it is official. - Source: https://www.gpo.gov/fdsys/pkg/USCODE-2011-title43/pdf/USCODE-2011-title43-chap29.pdf - Date Enacted: May 22, 1953 - Codification: 43 U.S.C. Sec. 1301 et seq. - Authority: agencies of several U.S. coastal states. When investigating geo-regulatory boundaries near the boundary edges, users should consult the most up-to-date applicable jurisdictional boundaries from all respective authoritative sources. 
DATA SOURCE(S):                    Department of Commerce, National Oceanic and Atmospheric Administration, National Ocean Service, Office for Coastal Management
SCALE OF ORIGINAL SOURCE MAPS:     100000
GEODATASET EXTENT:                 State of Florida

PUBLICATION DATE:                  20160914
TIME PERIOD OF CONTENT:            20160914
DOWNLOAD LINK:                     http://www.fgdl.org/metadataexplorer/explorer.jsp

FEATURE ATTRIBUTE TABLES: 

Datafile Name: SLA_SEP16.DBF
ITEM NAME WIDTH TYPE
OBJECTID
4 OID
SHAPE
4 Geometry
FEDERALGEO
20 String
CITATION
18 String
CODIFICATI
25 String
AUTHORITY
45 String
CONTACT
30 String
WEBSITE
40 String
DESCRIPT
20 String
FGDLAQDATE
36 Date
AUTOID
4 Integer
SHAPE.AREA
0 Double
SHAPE.LEN
0 Double

FEATURE ATTRIBUTE TABLES CODES AND VALUES:

Item

Item Description





OBJECTID

Internal feature number.
















SHAPE

Feature geometry.
















FEDERALGEO

Fegeral Georegulation: name of the georegulation




Submerged Lands Act = Name of the georegulation













CITATION

Public law citation




Public Law 83-31 = Public law citation













CODIFICATI

Codification: Georegulation code (from Code of Federal Regulations)




43 U.S.C. Sec. 1301 et seq. = Georegulation code (from Code of Federal Regulations)













AUTHORITY

Agency of responsibility




agencies of several U.S. coastal states = Agency of responsibility













CONTACT

Agency contact




check with individual states = Agency contact













WEBSITE

Link to legislative summary




https://coast.noaa.gov/oceanlawsearch/ = Link to legislative summary













DESCRIPT

GeoPlan added field based on FEDERALGEO
















FGDLAQDATE

Date GeoPlan obtained data from the source
















AUTOID

Unique ID added by GeoPlan
















SHAPE.AREA

Area in meters
















SHAPE.LEN

Perimeter in meters




























USER NOTES:








These data are believed to be logically consistent. Geometry is topologically clean.













Spatial and attribute properties are believed to be complete. Geometric thresholds
from original data are preserved. No tests have been completed for exhaustiveness.













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

























To support coastal and ocean planning and other activities pursuant to the
Energy Policy Act, Coastal Zone Management Act, Magnuson-Stevens Fishery
Conservation and Management Act, National Environmental Policy Act, Rivers
and Harbors Act and the Submerged Lands Act.















Maximum scale of intended use is 1:80,000.















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















These data are intended for coastal and ocean use planning. Not for navigation.
http://www.marinecadastre.gov/about/disclaimer.html

These data represent the unofficial boundary of the Submerged Lands Act, as of
2016. For the official boundary, please reference language within the authoritative
legislation and consult the governing agency/agencies. A copy of the legislation is
found here:
https://www.gpo.gov/fdsys/pkg/USCODE-2011-title43/pdf/USCODE-2011-title43-chap29.pdf














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: 






Submerged Lands Act:
https://www.gpo.gov/fdsys/pkg/USCODE-2011-title43/pdf/USCODE-2011-title43-chap29.pdf

National Oceanic and Atmospheric Administration:
http://www.noaa.gov/

Office for Coastal Management:
https://www.coast.noaa.gov/

Submerged Lands Map Service:
https://coast.noaa.gov/arcgis/rest/services/MarineCadastre/USStateSubmergedLands/MapServer

Marine Cadastre Data:
http://www.marinecadastre.gov/data/









DATA LINEAGE SUMMARY: 








1. Acquired national shoreline/s from authoritative sources (NOAA, BOEM,and NGA)
   to use as the inland extent of the Submerged Lands Act (SLA) boundary.
2. Acquired international borders (Canada and Mexico) from authoritative sources
   (OCS and USGS, respectively).
3. Acquired the seaward Submerged Lands Act line work from BOEM (Lower 48
   and Alaska only). Acquired NOAA 3nm line work from OCS (via email) for Hawaii
   and those areas of Alaska that do not have a BOEM-defined SLA boundary.
   (NOTE: some western Hawaiian islands have a 3nm line based on reefs, rather
   than the source shoreline (via NGA) extents.) The Exclusive Economic Zone
   (derived from the Energy Policy Act boundary) was used in places like Maine,
   Texas, and Washington state, where unclosed polylines in the BOEM SLA
   occurred over open water.
4. Created a national polygon shoreline, using the various shoreline sources and
   international borders. This was used as the landward extent of the SLA boundary.
   (NOTE: in northeast Alaska, the BOEM shoreline and OCS international boundary
   did not intersect. Used the NGA shoreline to close the small gap between these
   two sources.)
5. The seaward extent of the SLA boundary was generated in various ways, depending
   on the region and the respective data available. The methods are detailed as follows:
6. For the Lower 48, manually combined the BOEM SLA boundary, the OCS US/Canada
   boundary, and the USGS US/Mexico boundary. The Coastal Zone Management Act
   (CZMA) boundary was used where the BOEM SLA boundary was discontinuous
   (Florida) or did not connect with other boundaries (Washington State).
7. For Alaska, manually combined the BOEM SLA boundary and the OCS 3nm line.
   Where different component boundaries (polylines) did not meet/coincide, a line was
   drawn between the two at a perpendicular angle, based on the bearing of the line
   segment formed by the last two vertices of the "more official" boundary. For example,
   this was done in Alaska where the BOEM SLA and OCS 3nm lines did not line up. In
   such a case, the connecting line(s) was derived by adding a line perpendicular from
   the final line segment of the BOEM SLA boundary, per location.
8. For Hawaii, the respective features within the OCS 3nm boundary were extracted,
   as no published SLA boundary previously existed.
9. Combined all seaward extents of the varying regions into one national feature class.
10. Combined the seaward and landward (i.e. shoreline) segment boundaries into
   one feature class, then converted to a polygon. Before converting to a polygon,
   had to address 13 topology errors within the BOEM SLA data, where very small
   gaps within the polyline existed. (Five errors were in Alaska and eight were in the
   Gulf of Mexico.) These gaps were closed by creating a straight line between the
   two end nodes.
11. Generated a Great Lakes polygon, using the NOAA medium resolution shoreline
   and the US/Canada international boundary.
12. Visually inspected boundary extents to make sure they were coincident to
   respective data source boundaries.
13. Added fields and populated according to data dictionary.
Process Date: 2016


The dataset was downloaded from the NOAA website https://data.noaa.gov/dataset/us-state-submerged-lands
in October 2016. When downloaded the data was in shapefile format and the 
coordinate system was GCS_North_American_1983. The data was projected to GCS_North_American_1983_HARN.

GeoPlan took the following actions during the QA/QC process:
 - Original dataset downloaded from source and clipped so only features
   pertaining to the State of Florida were inlcuded.
 - Clipped dataset was projected from GCS North American 1983 to
   FGDL Albers.
 - Descript field added based on FEDERALGEO.
 - FGDLAQDATE field added based on date downloaded from source.
 - The longest record for each field was found and field character lengths
   were shortened to the appropriate shortest length possible.
 - All records were upcased, except for websites.
 - Changed file name from USStateSubmergedLands to sla_sep16
Process Date: 20161027









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:




National Oceanic and Atmospheric Administration, Office for Coastal Management
NOAA Medium Resolution Shoreline
2234 South Hobson Avenue
Charleston, SC
29405-2413
843.740.1202


https://data.noaa.gov/dataset/us-state-submerged-lands
coastal.info@noaa.gov
MarineCadastre.gov Data Steward









FGDL CONTACT:

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
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