FLORIDA GEOGRAPHIC DATA LIBRARY DOCUMENTATION
(VERSION 1.0)

BASINS

Geodataset Name:     BASINS
Geodataset Type:     Shape
Geodataset Feature:  Polygon

GENERAL DESCRIPTION
This dataset contains drainage basins as determined by the Florida
Department of Environmental Protection (FDEP).

DATA SOURCE(S):          FLORIDA DEPARTMENT OF 
                         ENVIRONMENTAL PROTECTION

SCALE OF ORIGINAL SOURCE MAPS:     1:24,000

GEODATASET EXTENT:                 State of Florida

FEATURE ATTRIBUTE TABLES
Datafile Name: BASINS.DBF

ITEM NAME     WIDTH       TYPE        PRECISION 
AREA          12          Decimal     3
PERIMETER     12          Decimal     3
BASINS_       11          Decimal     0
BASINS_ID     11          Decimal     0
HUC            8          Character
EXTHUC         8          Character
BASIN         22          Character
FEATURE        6          Character
PK_BASIN       6          Decimal     0
UFLAG          1          Character
HUCINT         8          Decimal     0
HUC1          10          Decimal     0
HUC12         12          Decimal     0
HUC123        14          Decimal     0
HUC1234       16          Decimal     0

FEATURE ATTRIBUTE TABLES CODES AND VALUES
Item      Item description

HUC       USGS hydrologic unit code; there are eight in the district

EXTHUC    Extended HUC code with 8 digits signifying a
          hydrologic hierarchy:
          -First two digits denote the primary basin (redefined
          as item FIRST)
          -Second two digits denote the secondary basin (SECOND)
          -Third two digits denote the tertiary basin (THIRD)
          -Fourth two digits denote the quaternary basin (FOURTH)
          -Example:  In HUC 03080101, any polygon with EXTHUC cn
          10----- or FIRST = 10 is part of the Jane Green Creek 
          watershed
          -EXTHUC = 99000000 is used for the main water bodies
          that each HUC is based on, i.e., the main stem
          of the St. Johns River, Ocklawaha River, Indian River            
          Lagoon, etc. These are more clearly described  by the
          Planning Unit codes.

BASIN     Name (e.g. Sixmile Creek, unnamed canal, Crescent Lake)

FEATURE   Water body type - see below for descriptions

PK_BASIN  unique statewide ID

UFLAG     Update flag which indicates if the polygon was revised from 
          the original USGS polygon:
          A = attribute change only
          M = existing arcs were revised (minor modification)
          N = arcs were radically revised or basin was subdivided 
          further
          U = attribute change and revised arcs or totally new 
          basin

HUCINT    Item for internal GeoPlan use

HUC1      Item for internal GeoPlan use

HUC12     Item for internal GeoPlan use

HUC123    Item for internal GeoPlan use

HUC1234   Item for internal GeoPlan use

Description of the FEATURE item

The names of FEATURES in the Coverage.DBF is a descriptor that
attempts to segregate drainage areas into classes.  The
separation of the classes was an attempt to combine size, type,
and artificiality into useful divisions for plotting.

The definitions of these descriptors are by Don Fouse (USGS
Tallahassee), followed by definitions from the "International
Glossary of Hydrology" (IGH) compiled by a joint committee of the
World Meteorological Organization and the United Nations
Educational, Scientific,, and Cultural Organization.  Don's
definitions are tailored to Florida or to GIS needs.

Definition #1 is by Don Fouse and Definition #2 is from the IGH.

STREAM      1.  A natural surface-water feature with flow in a
                defined channel.
            2.  A body of water, generally flowing in a natural surface
                channel.

DRAIN       1.  A small stream, generally unnamed, with a
                defined channel, that
                typically, accepts overflow from a swamp or other
                depression.

DITCH       1.  A small manmade drainage feature, usually
                completely artificial but occasionally a channeled 
                drain.
            2.  An artificial small-size open channel constructed 
                through earth or rock for the purpose of conveying 
                water.

CANAL       1.  A large manmade drainage feature, usually
                completely artificial but may be a channeled stream. 
                Often named.
            2.  Artificial open channel.

SLOUGH      1.  A natural surface-water feature with flow but no
                defined channel.
            2.  Not defined by IGH.

LAKE        1.  A natural body of water. Small lakes may be called
                ponds. Water-filled sinkholes are often considered to be 
                lakes. Wide portions of streams with greatly reduced 
                flow are usually considered lakes.
            2.  An inland body of water of considerable size.

RESERV      1.  An artificial lake or pond. Includes stock ponds,
                real estate lakes, and impoundments. A reservoir.
            2.   A body of water, either natural or artificial, used for
                 storage, regulation, and control of water.

NONCON      1.  Area that is within the drainage boundary of a
                water feature but which is drained internally and does 
                not contribute runoff to the water feature. A 
                noncontributing area.
            2.  Not defined by IGH.

OUTLET      1.  Outflow stream from a reservoir or lake.
            2.  Opening through which water flows out of a reservoir or
                stream. 

            1.  Invagination in the coastal shoreline prominent enough
                to be considered a separate feature.  Usually named.
            2.  Not defined by IGH.

BAYOU       1.  A stream without gradient but with flow
                generated by tide or stream  discharge.
            2.  Not defined by IGH.

LAGOON      1.  An elongated shallow water body with poorly defined
                tidal flux, protected by a barrier island.
            2.  A shallow sound, channel, or pond communicating with a
                larger body of water, or a shallow artificial pool or 
                pond.

RUNOFF      1. Direct surface or subsurface flow to a water body.
            2. Outflow of water towards the streams along the ground
               surface or within the soil.

REACH       1. A section of a stream.  The section will often be
               separated by a lake or marsh from other sections and may 
               have a different name.
            2. A straight, continuous, or extended part of a stream
               viewed without interruption (as between two bends) or 
               chosen between two specified points.

USER NOTES:

FGDL QUALITY ASSURANCE STATUS:
No QA performed as of FGDL v. 1

REFERENCES:

DATA LINEAGE SUMMARY:

MAP PROJECTION PARAMETERS

Projection                          ALBERS
Units                               METERS
Datum                               NAD27
Spheroid                            CLARKE 1866
1st standard parallel               24   0  0.000
2nd standard parallel               31  30  0.000
central meridian                   -84   0  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:                  FLORIDA DEPARTMENT OF ENVIRONMENTAL
                       PROTECTION
Abbr. Name:            FDEP
Address:               Florida Department of Environmental Protection
                       3900 Commonwealth
                       Tallahassee FL 32399
Phone:                 (850) 488-3701
Fax:                    
Web site:              http://www.dep.state.fl.us
Ftp site:               
E-mail:               
Contact Person:        DEP Bureau of Information Systems
                       GIS Section
         Phone:        (850) 488-0892
        E-mail:          

FGDL CONTACT:
Name:                   UNIVERSITY OF FLORIDA GEOPLAN CENTER
Abbr. Name:             GeoPlan Center
Address:                University of Florida, GeoPlan Center
                        431 Architecture
                        PO Box 115706
                        Gainesville, FL  32611-5706
Phone:                  (352) 846-3125
Fax:                    (352) 846-3124
Web site:               http://www.geoplan.ufl.edu/projects/fgdl.htm
Contact FGDL*:
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      to report data problems:     fgdl-data@geoplan.ufl.edu
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                                   or
                                   ftp.geoplan.ufl.edu

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