FLORIDA GEOGRAPHIC DATA LIBRARY DOCUMENTATION
VERSION 2007

TITLE: MAJOR WATERBODIES OF FLORIDA

Geodataset Name:       MJWATERBND
Geodataset Type:       SHAPEFILE
Geodataset Feature:    Polygon
Feature Count:         289
GENERAL DESCRIPTION:
This is a subset of the U.S. National Atlas Water Feature Areas representing the state of Florida. U.S. National Atlas Water Feature Areas represents the water feature areas (for example, bays, glaciers, lakes, and swamps) of the United States.
DATA SOURCE(S):                    National Atlas of the United States and the United States Geological Survey
SCALE OF ORIGINAL SOURCE MAPS:     2000000
DATE OF AUTOMATION OF SOURCE:      20061001
GEODATASET EXTENT:                 State of Florida

FEATURE ATTRIBUTE TABLES:

Datafile Name: MJWATERBND.DBF
ITEM NAME WIDTH TYPE N. DECIMAL DEGREES
OBJECTID
4 OID ---
FEATURE
22 String ---
NAME
40 String ---
STATE
20 String ---
SQMI
13 Number 2
DESCRIPT
30 String ---
FGDLAQDATE
8 Date ---
AUTOID
4 Number ---
SHAPE
4 Geometry ---
SHAPE.AREA
0 Double ---
SHAPE.LEN
0 Double ---

FEATURE ATTRIBUTE TABLES CODES AND VALUES:

Item
Item Description
OBJECTID Internal feature number.

FEATURE The type of water feature.
Canal = An artificial open waterway constructed to carry water, to irrigate or drain land, to connect two or more bodies of water, or to serve as a waterway for water craft.

Lake = A standing body of water with a predominately natural shoreline surrounded by land.

Lake Dry = An area that at one time contained a standing body of water.

Lake Intermittent = A standing body of water that contains water for only part of the year.

Reservoir = A constructed basin formed to contain water.

Reservoir Intermittent = A constructed basin formed to contain water for only part of the year.

Stream = A body of water flowing in a channel or watercourse.

Swamp or Marsh = A noncultivated, vegetated area that is inundated or saturated for a significant part of the year.


NAME The water feature name.

STATE The two-letter abbreviation for each state where the water feature is located.

SQMI The area of the water feature in square miles.

DESCRIPT Description field based on NAME.

FGDLAQDATE Date FGDL acquired the data.

AUTOID Unique ID field.

SHAPE Feature geometry.

SHAPE.AREA Area in meters

SHAPE.LEN Perimeter in meters


USER NOTES:
This data is provided "as is". GeoPlan relied on the integrity of the original
data layer s topology.

The shapefile is converted to SDC (Smart Data Compression) format using
either ESRI SDC Data Development Kit Professional 2 (DDKP2) or tools in
ArcGIS.  The SDC data set is then loaded into ArcSDE to verify and validate
the geometry.
This data is provided "as is" by GeoPlan and is complete to our knowledge.

After processing, the data set is checked for drawing display and number of
records and file sizes compared with source materials. Data completeness
generally reflects the content of the original Digital Line Graph (DLG) files.
GeoPlan relied on the integrity of the attribute information within
the original data.
Largest scale when displaying the data: 1:1,000,000.

U.S. National Atlas Water Feature Areas provides the water feature areas for 
geographic display and analysis at regional and national levels.

The geospatial part of this data set was originally extracted from the individual
1:2,000,000-scale State boundary Digital Line Graph (DLG) files produced by
the U.S. Geological Survey which have a positional accuracy of 1,720 meters.
It was updated several times using various sources whose horizontal positional
accuracies are unknown.

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

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 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:


DATA LINEAGE SUMMARY:
This file was originally digitized by the National Mapping Division based
on the sectional maps contained in 'The National Atlas of the United States
of America' published by the USGS in 1970.  The 1:2,000,000-scale Digital
Line Graph (DLG) data were merged into a single national hydrography
coverage. Where necessary to effect the merge, alignment changes were
made.  The names were taken from the USGS Topographic 1:100,000-scale
maps.  For Alaska, the names were taken from the USGS Topographic
1:250,000-scale maps.  State lines across water bodies were removed from
the national coverage.  State attributes were assigned to the features.

Some spatial features were added and corrected.  Some name attributes
were added or corrected.  All occurrences of St. were changed to Saint.
Extra spaces were removed from the attributes.  Hydrographic features
for Puerto Rico and the U.S. Virgin Islands were added. A minor adjustment
was made to the shoreline in Galveston Bay, Texas. The linear water feature
attribute value, Intercoastal waterway, was changed to Intracoastal waterway.
Process Date: 200212

The following steps were performed by ESRI: Downloaded the compressed file from the National Atlas of the United States and extracted it. Removed unneeded attributes. Removed all records except those with FEATURE attribute types of "Canal", "Glacier", "Lake", "Lake Dry", "Lake Intermittent", "Reservoir", "Reservoir Intermittent", "Stream", and "Swamp or Marsh". Reduced the attribute widths of FEATURE and NAME. Added attribute SQMI and calculated its values. Created ArcGIS layer file (.lyr), projection file (.prj), and spatial indices. Process Date: 20050317
GeoPlan downloaded the data from the ESRI ArcGIS 9 Data and Maps DVD in the Albers HGPN GCS_North_American_1983 projection. The data was reprojected into the Albers Conical Equal Area (Florida Geographic Data Library) projection. ----------------------------------------------------------------------- - Dissolved layer to get rid of roads that criss cross the large areas (e.g. The Everglades) - Changed layer name from WATER_BODIES to MJWATERBND. - Selected features within and intersecting the state of Florida. - Added a DESCRIPT field based on NAME. - Added FGDLAQDATE based on date FGDL acquired the data. - Added AUTOID field. - Upcased fields. Process Date: 20080613
Data imported to ArcSDE and exported as a shapefile. Process Date: 20080619
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:
ESRI
USGS/ESRI
380 New York Street
Redlands, California
92373-8100
909-793-2853

http://coastalmap.marine.usgs.gov/GISdata/basemaps/usa/water/hydrogp020.htm info@esri.com Data Team

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
      For FGDL Software:                http://www.fgdl.org/software.html