FLORIDA GEOGRAPHIC DATA LIBRARY DOCUMENTATION

TITLE: USFWS NATIONAL WETLANDS INVENTORY - POLYGONS

Geodataset Name:       NWIP_OCT10
Geodataset Type:       SHAPEFILE
Geodataset Feature:    Polygon
Feature Count:         805030
GENERAL DESCRIPTION:
This data set represents the extent, approximate location and type of wetlands and deepwater habitats as defined by the U.S. Fish & Wildlife Service for the state of Florida. These data delineate the areal extent of wetlands and surface waters as defined by Cowardin et al. (1979). Certain wetland habitats are excluded from the National mapping program because of the limitations of aerial imagery as the primary data source used to detect wetlands. These habitats include seagrasses or submerged aquatic vegetation that are found in the intertidal and subtidal zones of estuaries and near shore coastal waters. Some deepwater reef communities (coral or tuberficid worm reefs) have also been excluded from the inventory. These habitats, because of their depth, go undetected by aerial imagery. By policy, the Service also excludes certain types of "farmed wetlands" as may be defined by the Food Security Act or that do not coincide with the Cowardin et al. definition. Contact the Service's Regional Wetland Coordinator for additional information on what types of farmed wetlands are included on wetland maps.
DATA SOURCE(S):                    U.S. Fish and Wildlife Service
SCALE OF ORIGINAL SOURCE MAPS:     Varies
GEODATASET EXTENT:                 State of Florida
PUBLICATION DATE: 20101001 TIME PERIOD OF CONTENT: Begin Date: 1977 End Date: 20101001 DOWNLOAD LINK: http://www.fgdl.org/metadataexplorer/explorer.jsp

FEATURE ATTRIBUTE TABLES:

Datafile Name: NWIP_OCT10.DBF
ITEM NAME WIDTH TYPE
OBJECTID
4 OID
Shape
4 Geometry
ATTRIBUTE
20 String
WETLAND_TY
50 String
SYSTEM
1 String
SYSTEM_D
12 String
SUBSYSTEM
1 String
SUBSYS_D
20 String
CLASS1
2 String
CLASS1_D
30 String
SUBCLASS1
1 String
SUBCL1_D
30 String
CLASS2
2 String
CLASS2_D
30 String
SUBCLASS2
1 String
SUBCL2_D
30 String
WATER1
1 String
WATER1_D
36 String
WATER2
1 String
WATER2_D
36 String
CHEMISTRY1
1 String
CHEMIST1_D
22 String
CHEMISTRY2
1 String
CHEMIST2_D
22 String
SOIL
1 String
SOIL_D
8 String
SPECIAL1
1 String
SPECIAL1_D
26 String
SPECIAL2
1 String
SPECIAL2_D
26 String
DESCRIPT
12 String
DESCRIPT2
10 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.

ATTRIBUTE Wetland code. This code represents the system, subsystem, class, subclass, water regime, water chemistry, soil, and special modifier for each wetland. (Each record does not have information for all designations)

WETLAND_TY Wetland type

SYSTEM System is the highest level of the classification hierarchy.
P = Palustrine

E = Estuarine

M = Marine

R = Riverine

L = Lacustrine


SYSTEM_D System Description

SUBSYSTEM Subsystem code (Definition is dependent on system. The same number is used by multiple Subsystems to represent numberous subsystems)

SUBSYS_D Subsystem description

CLASS1 Class code based on substrate material and flooding regime or on vegetative lifeform.
AB = Aquatic Bed

OW = Open Water

RF = Reef

EM = Emergent

FO = Forested

RS = Rocky Shore

SS = Scrub-Shrub

SB = Stream bed

UB = Unconsolidated Bottom

US = Unconsolidated Shore


CLASS1_D Class description

SUBCLASS1 Numberic code designating subclass. (Definition is dependent on system class1. The same number is used by multiple Classes to represent numberous subclasses)

SUBCL1_D Subclass description

CLASS2 Secondary Class designation. Same as Class1 above.

CLASS2_D Secondary Class description

SUBCLASS2 Secondary Class designation. Same as Subclass1 above.

SUBCL2_D Secondary Subclass description

WATER1 Water regime code. Describes the type and duration of flooding, and exposure.
A = Temporarily Flooded

B = Saturated

C = Seasonally Flooded

E = Seasonally Flooded / Saturated

F = Semipermanently Flooded

G = Intermittently Exposed

H = Permanently Flooded

J = Intermittently Flooded

K = Artificially Flooded

L = Subtidal

M = Irregularly Exposed

N = Regularly Flooded

P = Irregularly Flooded

R = Seasonal-Tidal

S = Temporary-Tidal

T = Semipermanent-Tidal

U = Unknown

V = Permanent-Tidal


WATER1_D Water regime description

WATER2 Secondary water regime. See Water1 above.

WATER2_D Secondary water regime description

CHEMISTRY1 Water chemistry code. Description of the salinity of the water present
1 = Hyperhaline

2 = Euhaline

3 = Mixohaline (brackish)

4 = Polyhaline

5 = Mesohaline

6 = Oligohaline

7 = Hypersaline

8 = Eusaline

9 = Mixosaline

0 = Fresh


CHEMIST1_D Water chemistry description

CHEMISTRY2 Secondary water chemistry. See chemistry1 above.

CHEMIST2_D Secondary water chemistry description

SOIL Soil description code. (From U.S. soil taxonomy)
g = Organic

n = Mineral


SOIL_D Soil description

SPECIAL1 Special modifier code.
b = Beaver

d = Partially Drained/Ditched

f = Farmed

h = Diked/Impounded

r = Artificial Substrate

s = Spoil

x = Excavated


SPECIAL1_D Special modifier description

SPECIAL2 Secondary special modifier. See SPECIAL1 above.

SPECIAL2_D Secondary special modifier description

DESCRIPT FGDL added field based on SYSTEM_D

DESCRIPT2 FGDL added field.

FGDLAQDATE FGDL added field based on date received from source.

AUTOID Unique ID added by GeoPlan

SHAPE.AREA Area in meters

SHAPE.LEN Length in meters


USER NOTES:
Polygon and chain-node topology are present. Every polygon has 
a label.
This data set represents the extent of wetlands and deepwater habitats 
that can be determined with the use of remotely sensed data and within 
the timeframe for which the maps were produced. Wetlands are shown 
here only for the state of Florida and small areas outside of the state. The 
accuracy of image interpretation depends on the quality of the imagery, 
the experience of the image analysts, the amount and quality of the 
collateral data, and the amount of ground truth verification work conducted.  

There is a margin error inherent in the use of imagery, thus detailed on the 
ground inspection of any particular site, may result in revision of the wetland 
boundaries or classification, established through image analysis.

Wetlands or other mapped features may have changed since the date or 
the imagery and/or field work.  There may be occasional differences in 
polygon boundaries or classifications between the information depicted on 
the map and the actual conditions on site.
GeoPlan relied on the integrity of the attribute information within
the original data.
This data set represents the extent, approximate location and type 
of wetlands and deepwater habitats in the state of Florida.

The wetland maps were produced as topical overlays using U.S. 
Geological Survey topographic maps as the base.  The hard copy 
product is a composite map showing topographic and planimetric 
features from the USGS map base and wetlands and deepwater 
habitats from the Service's topical overlay.  Thus, the data are 
intended for use in publications, at a scale of 1:24,000 or smaller. 
Due to the scale, the primary intended use is for regional and 
watershed data display and analysis, rather than specific project 
data analysis.  The map products were neither designed or intended 
to represent legal or regulatory products.

Comments regarding the interpretation or classification of wetlands 
or deepwater habitats can be directed to the U.S. Fish and Wildlife 
Service, Division of Federal Program Activities, Branch of Habitat 
Assessment http://www.fws.gov/duspit/contactus.htm

These data were developed in conjunction with the publication 
Cowardin, L.M., V. Carter, F.C. Golet, and E.T. LaRoe.  1979.  
Classification of Wetlands and Deepwater Habitats of the United 
States.  U.S. Department of the Interior, Fish and Wildlife Service, 
Washington, DC.  FWS/OBS-79/31.  Alpha-numeric map codes 
have been developed to correspond to the wetland and deepwater 
classifications described.

These spatial data are not designed to stand alone.  They form 
topical overlays to the U.S. Geological Survey 1:24,000 or 1:25,000 
scale topographic quadrangles.  Note that coastline delineations 
were drawn to follow the extent of wetland or deepwater features 
as described by this project and may not match the coastline shown 
in other base maps.

Any use of trade, product, or firm names is for descriptive purposes 
only and does not imply endorsement by the U.S. Government.

Although this Federal Geographic Data Committee-compliant 
metadata file is intended to document the data set in nonproprietary 
form, as well as in Arc/INFO format, this metadata file may include 
some Arc/INFO-specific terminology.

The wetland classification system is hierarchical, with wetlands and 
deepwater habitats divided among five major systems at the broadest 
level. The five systems include Marine (open ocean and associated 
coastline), Estuarine (salt marshes and brackish tidal water), Riverine 
(rivers, creeks, and streams), Lacustrine (lakes and deep ponds), and 
Palustrine (shallow ponds, marshes, swamps, sloughs). Systems are 
further subdivided into subsystems which reflect hydrologic conditions. 
Below the subsystem is the class which describes the appearance of 
the wetland in terms of vegetation or substrate. Each class is further 
subdivided into subclasses; vegetated subclasses are described in 
terms of life form and substrate subclasses in terms of composition. 
The classification system also includes modifiers to describe hydrology 
(water regime), soils, water chemistry (pH, salinity), and special modifiers 
relating to man's activities (e.g., impounded, partly drained). See chart 
below for details:

SYSTEM              SUBSYSTEM        CLASS                     SUBCLASS

                                  |- RB=Rock Bottom            1=Bedrock
                                  |                            2=Rubble
                                  |
                                  |- UB=Unconsolidated Bottom  1=Cobble-Gravel
                                  |                            2=Sand
                                  |                            3=Mud
                                  |                            4=Organic
                                  |
                |-- 1=SUBTIDAL----|- AB=Aquatic Bed            1=Algal
                |                 |                            3=Rooted Vascular
                |                 |                            5=Unknown
                |                 |                              Submergent
                |                 |
                |                 |- RF=Reef                   1=Coral
                |                 |                            3=Worm
                |                 |
                |                 |- OW=Open Water/Unknown Bottom 
                |
M=MARINE--------|
                |
                |
                |                 |- AB=Aquatic Bed            1=Algal
                |                 |                            3=Rooted Vascular
                |                 |                            5=Unknown
                |                 |                              Submergent
                |                 |
                |                 |- RF=Reef                   1=Coral
                |-- 2=INTERTIDAL--|                            3=Worm
                                  |
                                  |- RS=Rocky Shore            1=Bedrock
                                  |                            2=Rubble
                                  |
                                  |- US=Unconsolidated Shore   1=Cobble-Gravel
                                                               2=Sand
                                                               3=Mud
                                                               4=Organic

SYSTEM              SUBSYSTEM        CLASS                     SUBCLASS

                                  |- RB=Rock Bottom            1=Bedrock
                                  |                            2=Rubble
                                  |
                                  |- UB=Unconsolidated Bottom  1=Cobble-Gravel
                                  |                            2=Sand
                                  |                            3=Mud
                                  |                            4=Organic
                                  |
                |-- 1=SUBTIDAL----|- AB=Aquatic Bed            1=Algal
                |                 |                            3=Rooted Vascular
                |                 |                            4=Floating
                |                 |                              Vascular
                |                 |                            5=Unknown
                |                 |                              Submergent
                |                 |                            6=Unknown Surface
                |                 |
                |                 |- RF=Reef                   2=Mollusc
                |                 |                            3=Worm
                |                 |
                |                 |- OW=Open Water/Unknown Bottom
                |
E=ESTUARINE-----|
                |
                |
                |                 |- AB=Aquatic Bed            1=Algal
                |                 |                            3=Rooted Vascular
                |                 |                            4=Floating
                |                 |                              Vascular
                |                 |                            5=Unknown
                |                 |                              Submergent
                |                 |                            6=Unknown Surface
                |                 |
                |                 |- RF=Reef                   2=Mollusc
                |                 |                            3=Worm
                |                 |
                |                 |- SB=Streambed              3=Cobble-Gravel
                |                 |                            4=Sand
                |                 |                            5=Mud
                |                 |                            6=Organic
                |                 |
                |                 |- RS=Rocky Shore            1=Bedrock
                |                 |                            2=Rubble
                |                 |
                |-- 2=INTERTIDAL--|- US=Unconsolidated Shore   1=Cobble-Gravel
                                  |                            2=Sand
                                  |                            3=Mud
                                  |                            4=Organic
                                  |
                                  |- EM=Emergent               1=Persistent
                                  |                            2=Nonpersistent
                                  |
                                  |- SS=Scrub-Shrub            1=Broad-Leaved
                                  |                              Deciduous
                                  |                            2=Needle-Leaved
                                  |                              Deciduous
                                  |                            3=Broad-Leaved
                                  |                              Evergreen
                                  |                            4=Needle-Leaved
                                  |                              Evergreen
                                  |                            5=Dead
                                  |                            6=Indeterminate
                                  |                              Deciduous
                                  |                            7=Indeterminate
                                  |                              Evergreen
                                  |
                                  |- FO=Forested               1=Broad-Leaved
                                                                 Deciduous
                                                               2=Needle-Leaved
                                                                 Deciduous
                                                               3=Broad-Leaved
                                                                 Evergreen
                                                               4=Needle-Leaved
                                                                 Evergreen
                                                               5=Dead
                                                               6=Indeterminate
                                                                 Deciduous
                                                               7=Indeterminate
                                                                 Evergreen


SYSTEM              SUBSYSTEM        CLASS                     SUBCLASS

                                  |- RB=Rock Bottom            1=Bedrock
                                  |                            2=Rubble
                                  |
                                  |- UB=Unconsolidated Bottom  1=Cobble-Gravel
                                  |                            2=Sand
                |--1=TIDAL--------|                            3=Mud
                |                 |                            4=Organic
                |                 |
                |                 |-*SB=Streambed              1=Bedrock
                |                 |                            2=Rubble
                |                 |                            3=Cobble-Gravel
                |--2=LOWER        |                            4=Sand
                |    PERENNIAL----|                            5=Mud
                |                 |                            6=Organic
                |                 |                            7=Vegetated
                |                 |
                |                 |- AB=Aquatic Bed            1=Algal
R=RIVERINE------|--3=UPPER        |                            2=Aquatic Moss
                |    PERENNIAL----|                            3=Rooted Vascular
                |                 |                            4=Floating
                |                 |                              Vascular
                |                 |                            5=Unknown
                |                 |                              Submergent
                |--4=INTERMITTENT-|                            6=Unknown Surface
                |                 |
                |                 |- RS=Rocky Shore            1=Bedrock
                |                 |                            2=Rubble
                |                 |
                |                 |- US=Unconsolidated Shore   1=Cobble-Gravel
                |--5=UNKNOWN      |                            2=Sand
                |    PERENNIAL----|                            3=Mud
                                  |                            4=Organic
                                  |                            5=Vegetated
                                  |
                                  |-**EM=Emergent              2=Nonpersistent
                                  |
                                  |- OW=Open Water/Unknown Bottom 
                                  |                               
                                  |-*STREAMBED is limited to TIDAL and
                                  | INTERMITTENT SUBSYSTEMS, and comprises the
                                  | only CLASS in the INTERMITTENT SUBSYSTEM.
                                  |
                                  |-**EMERGENT is limited to TIDAL and LOWER
                                  | PERENNIAL SUBSYSTEMS.


SYSTEM              SUBSYSTEM        CLASS                     SUBCLASS

                                  |- RB=Rock Bottom            1=Bedrock
                                  |                            2=Rubble
                                  |
                                  |- UB=Unconsolidated Bottom  1=Cobble-Gravel
                                  |                            2=Sand
                                  |                            3=Mud
                                  |                            4=Organic
                                  |
                |-- 1=LIMNETIC----|- AB=Aquatic Bed            1=Algal
                |                 |                            2=Aquatic Moss
                |                 |                            3=Rooted Vascular
                |                 |                            4=Floating
                |                 |                              Vascular
                |                 |                            5=Unknown
                |                 |                              Submergent
                |                 |                            6=Unknown Surface
                |                 |
                |                 |- OW=Open Water/Unknown Bottom 
                |
L=LACUSTRINE----|
                |
                |
                |                 |- RB=Rock Bottom            1=Bedrock
                |                 |                            2=Rubble
                |                 |
                |                 |- UB=Unconsolidated Bottom  1=Cobble-Gravel
                |                 |                            2=Sand
                |                 |                            3=Mud
                |                 |                            4=Organic
                |                 |
                |                 |- AB=Aquatic Bed            1=Algal
                |                 |                            2=Aquatic Moss
                |                 |                            3=Rooted Vascular
                |                 |                            4=Floating
                |-- 2=LITTORAL----|                              Vascular
                                  |                            5=Unknown
                                  |                              Submergent
                                  |                            6=Unknown Surface
                                  |
                                  |- RS=Rocky Shore            1=Bedrock
                                  |                            2=Rubble
                                  |
                                  |- US=Unconsolidated Shore   1=Cobble-Gravel
                                  |                            2=Sand
                                  |                            3=Mud
                                  |                            4=Organic
                                  |                            5=Vegetated
                                  |
                                  |- EM=Emergent               2=Nonpersistent
                                  |
                                  |- OW=Open Water/Unknown Bottom 


SYSTEM              SUBSYSTEM        CLASS                     SUBCLASS

                                  |- RB=Rock Bottom            1=Bedrock
                                  |                            2=Rubble
                                  |
                                  |- UB=Unconsolidated Bottom  1=Cobble-Gravel
                                  |                            2=Sand
                                  |                            3=Mud
                                  |                            4=Organic
                                  |
                                  |- AB=Aquatic Bed            1=Algal
                                  |                            2=Aquatic Moss
                                  |                            3=Rooted Vascular
                                  |                            4=Floating
                                  |                              Vascular
                                  |                            5=Unknown
                                  |                              Submergent
                                  |                            6=Unknown Surface
                                  |
                                  |- US=Unconsolidated Shore   1=Cobble-Gravel
                                  |                            2=Sand
                                  |                            3=Mud
                                  |                            4=Organic
                                  |                            5=Vegetated
                                  |
                                  |- ML=Moss-Lichen            1=Moss
                                  |                            2=Lichen
                                  |
P=PALUSTRINE----------------------|- EM=Emergent               1=Persistent
                                  |                            2=Nonpersistent
                                  |
                                  |- SS=Scrub-Shrub            1=Broad-Leaved
                                  |                              Deciduous
                                  |                            2=Needle-Leaved
                                  |                              Deciduous
                                  |                            3=Broad-Leaved
                                  |                              Evergreen
                                  |                            4=Needle-Leaved
                                  |                              Evergreen
                                  |                            5=Dead
                                  |                            6=Indeterminate
                                  |                              Deciduous
                                  |                            7=Indeterminate
                                  |                              Evergreen
                                  |
                                  |- FO=Forested               1=Broad-Leaved
                                  |                              Deciduous
                                  |                            2=Needle-Leaved
                                  |                              Deciduous
                                  |                            3=Broad-Leaved
                                  |                              Evergreen
                                  |                            4=Needle-Leaved
                                  |                              Evergreen
                                  |                            5=Dead
                                  |                            6=Indeterminate
                                  |                              Deciduous
                                  |                            7=Indeterminate
                                  |                              Evergreen
                                  |
                                  |- OW=Open Water/Unknown Bottom 

       
                                   MODIFIERS

                                  |- A=Temporarily Flooded
                                  |- B=Saturated
                                  |- C=Seasonally Flooded
                                  |- D=Seasonally Flooded/Well Drained
                                  |- E=Seasonally Flooded/Saturated
                                  |- F=Semipermanently Flooded
                |--Non-Tidal------|- G=Intermittently Exposed
                |                 |- H=Permanently Flooded
                |                 |- J=Intermittently Flooded
                |                 |- K=Artificially Flooded
                |                 |- W=Intermittently Flooded/Temporary
                |                 |- Y=Saturated/Semipermanent/Seasonal
                |                 |- Z=Intermittently Exposed/Permanent
                |                 |
WATER REGIME----|                 |- U=Unknown
                |
                |
                |
                |
                |                 |- K=Artificially Flooded
                |                 |- L=Subtidal
                |                 |- M=Irregularly Exposed
                |                 |- N=Regularly Flooded
                |--Tidal----------|- P=Irregularly Flooded
                                  |-*S=Temporary-Tidal
                                  |-*R=Seasonal-Tidal
                                  |-*T=Semipermanent-Tidal
                                  |-*V=Permanent-Tidal
                                  |- U=Unknown
                                  |
                                  |-*These water regimes are only used in
                                  |  tidally influenced, freshwater systems.



                                  |- 1=Hyperhaline
                                  |- 2=Euhaline
                |--Coastal        |- 3=Mixohaline (Brackish)
                |  Halinity-------|- 4-Polyhaline
                |                 |- 5=Mesohaline
                |                 |- 6=Oligohaline
                |                 |- 0=Fresh
                |
                |
                |
WATER CHEMISTRY-|
                |                 |- 7=Hypersaline
                |--Inland         |- 8=Eusaline
                |  Salinity-------|- 9=Mixosaline
                |                 |- 0=Fresh
                |
                |
                |
                |
                |--pH Modifiers   |- a=Acid
                   for all        |- t=Circumneutral
                   Fresh Water----|- i=Alkaline


SOIL------------------------------|- g=Organic
                                  |- n=Mineral

                                  |- b=Beaver
                                  |- d=Partially Drained/Ditched
SPECIAL MODIFIERS-----------------|- f=Farmed
                                  |- h=Diked/Impounded
                                  |- r=Artificial Substrate
                                  |- s=Spoil
                                  |- x=Excavated

The present goal of the Service is to provide the citizens of the 
United States and its Trust Territories with current geospatially 
referenced information on the status, extent, characteristics and 
functions of wetlands, riparian, deepwater and related aquatic 
habitats in priority areas to promote the understanding and 
conservation of these resources.

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

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

None. Acknowledgement of the U.S. Fish and Wildlife Service and (or) the 
National Wetlands Inventory would be appreciated in products derived from 
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:
NWI Codes Legend:
ftp://146.201.97.137/NWI/NWI_Legend.pdf

USFWS Wetlands Classification Decoder:
http://137.227.242.85/Data/interpreters/wetlands.aspx

Wetlands and Deepwater Habitats Classification:
http://www.fws.gov/wetlands/_documents/gNSDI/ClassificationWetlandsDeepwaterHabitatsUS.pdf

DATA LINEAGE SUMMARY:
Original stable base hard copy maps of wetland and deepwater habitats 
were created based on USGS state and quadrangle boundaries.  These 
maps were converted to digital files using various software packages 
(WAMS, ARC and others).  The digital files were stored as ESRI Import/
Export files corresponding to a single 1:24,000 USGS quadrangle.  These 
digital files were imported and converted to ESRI Coverage format and 
checked for topological and attribute errors.  All coverages were converted 
from a UTM map projection to an Alber's Equal Area map projection and 
the horizontal datum was converted from NAD27 to NAD83 were necessary.  
Polygons attributed as "Uplands" were removed from the dataset and polygons 
were merged at quadrangle boundaries where the quadrangle line divided 
polygons with the same attribute.  The data was loaded into a seamless SDE 
geodatabase for the conterminous United States.  These steps were conducted 
using both Arc Macro Language (AML) and ArcMap editing tools.  All point 
data from the original ESRI Coverages were buffered by 11.28 meters 
(1/10 of an acre) and incorporated into this polygon feature class.  Linear 
features from the original ESRI Coverages were merged at quadrangle 
boundaries where the quadrangle line divided lines with the same attribute.  
Linear data is stored in a separate feature class.

Further data improvements included the conversion of all old wetland codes 
that contained 'OW' to the new code containing 'UB'.  All polygons labeled 
as 'OUT', 'No Data' and 'NP' were removed from the database.
Process Date: 
The file was converted to NAD83 in geographic coordinates, and saved in geodatabase format. Process Date: 200401
This data was obtained in shapefile format via download from the USFWS National Wetlands Inventory website (http://www.fws.gov/wetlands/data/DataDownload.html) on Dec. 5, 2010. When received, data was in the following projection: Albers, Datum: NAD 83. The shapefile was projected to FGDL Albers HARN. Fields deleted included: HGM_CODE, QAQC_CODE, ACRES, DECODE, SHAPE_Length and SHAPE_Area. Fields added included: SYSTEM, SYSTEM_D, SUBSYSTEM, SUBSYSTEM_D, CLASS1, CLASS1_D, SUBCLASS1, SUBCL1_D, CLASS2, CLASS2_D, SUBCLASS2, SUBCL2_D, WATER1, WATER1_D, WATER2, WATER2_D, CHEMISTRY1, CHEMIST1_D, CHEMISTRY2, CHEMIST2_D, SOIL, SOIL_D, SPECIAL1, SPECIAL1_D, SPECIAL2, SPECIAL2_D, DESCRIPT, DESCRIPT2, and FGDLAQDATE. Fields were populated using a dbf containing all unique ATTRIBUTE values and definitions from the NWI Legend PDF: ftp://146.201.97.137/NWI/NWI_Legend.pdf 2 records were incorrectly attributed as (X) in the SPECIAL1 field. These were changed to (x). - Projected to FGDL Albers HARN - Upcased all records (except for SOIL, SPECIAL1 and SPECIAL2) - Renamed file from CONUS_wet_poly to NWIP_OCT10 - DESCRIPT field calculated from SYSTEM_D - FGDLAQDATE added based on date downloaded from source. Process Date: 20101205
Data imported to ArcSDE and exported as a shapefile. Process Date: 20110204
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:
U.S. Fish and Wildlife Service
USFWS
555 Lester Ave.
Onalaska, WI
54650
608-783-8425

http://www.fws.gov/wetlands/data/DataDownload.html tom_dahl@fws.gov Tom Dahl

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