FLORIDA GEOGRAPHIC DATA LIBRARY DOCUMENTATION
VERSION 2004

TITLE: HYDROGRAPHY SUBSET - DERIVED FROM USGS 1:100,000 DLG HYDROGRAPHY

Geodataset Name:    HYDROS
Geodataset Type:    Shape
Geodataset Feature: Polygon

GENERAL DESCRIPTION

This layer contains a reselected subset of the USGS 1:100,000 DLG Hydrography. Only those areas representing Lakes, Ponds, Wetlands, Swamps, Bogs, or Streams were subset for the coastal counties of Florida.

DATA SOURCE(S):                       United State Geological Survey and 
                                      GeoPlan Center, Univ of Florida

SCALE OF ORIGINAL SOURCE MAPS:        1:100,000

DATE OF AUTOMATION OR SOURCE:         Source 1990

GEODATASET EXTENT:                    State of Florida

FEATURE ATTRIBUTE TABLES
Datafile Name: HYDROS.DBF

ITEM NAME    WIDTH    TYPE  PRECISION

AREA          12     DECIMAL    3
PERIMETER     12     DECIMAL    3
MAJOR1         6     DECIMAL    -
MINOR1         6     DECIMAL    -
MAJOR2         6     DECIMAL    -
MINOR2         6     DECIMAL    -
MAJOR3         6     DECIMAL    -
MINOR3         6     DECIMAL    -
MAJOR4         6     DECIMAL    -
MINOR4         6     DECIMAL    -
EMSTAT         1     DECIMAL    -
EMREASON       1     DECIMAL    -
STATE_         5     DECIMAL    -
SHADE          3     DECIMAL    -
CHANGE         1     DECIMAL    -
DESCRIPT      50     CHARACTER  -

FEATURE ATTRIBUTE TABLES CODES AND VALUES

Item        Item Description

MAJOR1 / MINOR1

-99999    -99999    Land feature

    VALUES    DESCRIPTION
    0    0
    50  101    Reservoir
        106    Fish  Hatchery or Farm
        107    Industrial Water Impoundment
        108    Area to be submerged
        109    Sewage disposal pond or filtration beds
        110    Tailings pond
        111    Marsh, wetland, swamp, bog
        112    Mangrove area
        114    Cranberry bog
        116    Bays, estuaries, gulfs, oceans, seas
        407    Canal lock or sluice gate
        412    Stream
        414    Ditch or canal
        419    Channel in water area
        421    Lake or pond
        610    Intermittent
        612    Submerged
        616    Navigable - Transportation

MAJOR2 / MINOR2

-99999    -99999    Land feature

    VALUES    DESCRIPTION
    0     0
    50    1    Upper origin of stream
          2    Upper origin of stream at water body
          3    Sink
          4    Stream entering water body
          5    Stream exiting water body
        111    Marsh, wetland, swamp, bog
        116    Bays, estuaries, gulfs, oceans, seas
        419    Channel in water area
        421    Lake or pond
        610    Intermittent
        612    Submerged
        616    Navigable - transportation

MAJOR3 / MINOR3

-99999    -99999    Land feature

    VALUES    DESCRIPTION
    0    0
    50    2    Upper origin of stream at water body
          3    Sink
        111    Marsh, wetland, swamp, bog
        112    Mangrove area
        419    Channel in water area
        421    Lake or pond
        610    Intermittent
        612    Submerged

MAJOR4 / MINOR4

-99999    -99999    Land feature

VALUES    DESCRIPTION
    0     0
    50    2    Upper origin of stream at water body
          3    Sink
        111    Marsh, wetland, swamp, bog
        414    Ditch or canal
        421    Lake or pond
        612    Submerged

EMSTAT      Undefined by source 

EMREASON    Undefined by source 


SHADE

    VALUES    DESCRIPTION
    0         Land features/non-water
    108        DLG Minor1 Code
                412    Stream
                414    Ditch or canal
                407    Canal lock
                419    Channel
                421    Lake or pond
                116    Bays, estuaries, gulfs, oceans, seas
                101    Reservoir
                106    Fish hatchery
                107    Industrial water impound
                108    To be submerged
                109    Sewage disposal or filtration
                130    DLG Minor1 Code
                610    Intermittent water bodies
    372        DLG Minor1 Code
                112    Mangroves
    375        DLG Minor1 Code
                612    Deep water wetlands
    377        DLG Minor1 Code
                111    Marsh, wetland, swamp, bog

CHANGE

    VALUES    DESCRIPTION
    0        No change
    1        Change (Major 1 and /or Minor 1)
    2        Label and/or arcs added

 
DESCRIPT   FGDL item added, based on description of items listed above

USER NOTES:

This dataset was subset from the larger 1:100,000 scale USGS DLG Hydrography. The dataset is smaller in physical storage size and in the amount of information within the dataset. Only those areas representing Lakes, Ponds, Streams, Wetlands, Swamps, or Bogs in Florida coastal counties are inluded. The full USGS 1:100,000 Hydrography is available on the FGDL Core CDROM series by County.

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.

1:250000 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 analyses. 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 web pages at:

http://www.geoplan.ufl.edu/education.html

FGDL QUALITY ASSURANCE STATUS:

-Reprojected data to FGDL Albers
-Set Precision to DOUBLE
-Set Tolerances to FGDL Standards
-Added DESCRIPT item based onVALUE

MAP PROJECTION PARAMETERS

Projection                        ALBERS
Units                             METERS
Datum                             HPGN	
Spheroid                          GRS 1980
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:                United States Geological Survey
Abbr. name:          USGS
Address:             USGS Mapping Applications Center
                     National Cartographic Info Center
                     507 National Center
                     Reston, VA 22092
Phone:               (703) 860-6045
Fax:                 (703) 648-4165
Web site:            http://www.usgs.gov
		     http://mapping.usgs.gov/mac/
E-mail:              MACWEBMASTER@USGS.GOV,
Contact Person:      They will route your message to the person best
                     qualified to respond.

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