onemap_prod.SDEADMIN.nwi_arc

Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: U.S. Fish & Wildlife Service, National Wetlands Inventory
Publication_Date: 19990518
Title:
onemap_prod.SDEADMIN.nwi_arc
Geospatial_Data_Presentation_Form: vector digital data
Publication_Information:
Publication_Place: St.Petersburg, Florida
Publisher: U.S. Fish & Wildlife Service, National Wetlands Inventory
Other_Citation_Details:
NCCGIA distributes this dataset
Online_Linkage: Server=cgiapdb; Service=5151; Database=onemap_prod; User=sdeadmin; Version=sde.DEFAULT
Description:
Abstract:
NWI digital data files are records of
wetlands location and classification as defined by the U.S. Fish &
Wildlife Service.  This dataset is one of a series available in 7.5
minute by 7.5 minute blocks containing ground planimetric
coordinates of wetlands point, line, and area features and wetlands
attributes.  When completed, the series will provide coverage for
all of the contiguous United States, Hawaii, Alaska, and U.S.
protectorates in the Pacific and Caribbean.  The digital data as
well as the  hardcopy maps that were used as the source for the
digital data are produced and distributed by the U.S. Fish &
Wildlife Service's National Wetlands Inventory project. Base map
dates Range from Oct. 1981 to present.  CGIA has compiled the 7.5
minute quadrangle extent digital files into river basin map
extent files. These extents are stored as tiles in a GIS library.
The NWI identifier is in in the condensed format
in the polygon (area) attributes, and in a parsed format in the
arc (line) attributes.  Other wetland classification exist for
North Carolina.
Purpose:
The data provide consultants, planners, and
resource managers with information on wetland location and type.
The data were collected to meet U.S. Fish & Wildlife Service's
mandate to map the wetland and deepwater habitats of the United
States.
Supplemental_Information:
24,000-scale NWI files were joined to create 1:100,000-scale
tiles which were then joined to created river basin
tiles. The tile names, abbreviations and approximate file
sizes are list here.

>River Basin         ABBREV   MB
>Broad               brd       2
>Cape Fear           cpf      60
>Catawba             ctb       8
>Chowan              cho       8
>French Broad        frb       2
>Hiwassee            hiw       1
>Little Tennessee    ltn       1
>Lumber              lbr      24
>Neuse               neu      39
>New                 new       2
>Pasquotank          pas      13
>Roanoke             roa      19
>Savannah            sav      no digital data
>Tar-Pamlico         tar      31
>Watauga             wat       1
>White Oak           wok      10
>Yadkin              yad      19

>Revisions and updates to this layer include:
>system filename: /library/librb/tiles/(rivbasabbrev)/nwi
>filesizes range from 1 - 60 mb per tile
>4.) directory: nwi_599 filenames: (rivbas)nwi599
>The May 1999 updates to this layer consisted of combining the
>100k tiles into river basin files and stripping out the quadrangle
>neatlines. During this update the data was also projected from NAD27
>datum, State Plane projection, units of measure feet TO: NAD83 DATUM,
>State Plane PROJECTION, UNITS OF MEASURE METERS.  This was done to
>comply with the NC Geographic Information Coordinating Council's
>"Statement of Direction for North Carolina Corporate Geographic Database
>Horizontal Reference, Datum and Unit of Measure".  This reprojecting
>was done in various ways depending on the data type and content.
>Vector data was projected using the 'project' command in ESRI's Arc
>software and topology was cleaned and built based on coverage needs.
>Raster data was projected using ESRI's Grid module and various steps
>as applicable.
>3.) directory: nwi_1097  filenames: nwi(100kabbr)1097
>In October 1997, additional 24k tiles were being combined into 100k
>tiles. If the 24 k source changed at any time, these updates
>were also added to the 100k. The following tiles were edited or
>added: Asheville, Gastonia, Lancaster.
>2.) directory: nwi_1995  filenames: nwi(100kabbr)(month)95
>In 1995, additional 24k tiles were being combined into 100k
>tiles. If the 24 k source changed at any time, these updates
>were also added to the 100k.
>During the year, 29 tiles were created or updated as follows:
>October 1995 - Bayboro
>September 1995 - Norfolk, Plymouth, Whiteville
>August 1995 - Raleigh, Roanoke Rapids
>July 1995 - Asheville, Charlotte, Florence, Fontana Lake,
>Gaston, Hendersonville, Johnson City, Knoxville, Laurinburg
>June 1995 - Morehead City
>May 1995 - Boone, Cleveland, Kinston, Salisbury
>April 1995 - Fayetteville, Henderson
>March 1995 - Chapel Hill, Greensboro
>February 1995 - Rocky Mount
>January 1995 - Danville, Galax, Southern Pines, Wytheville
>1.) directory: nwi_1994  filenames: nwi(100kabbr)(month)94
>In 1994, the 24k tiles were being combined into 100k tiles.
>If the 24 k source changed at any time, these updates were
>also added to the 100k.
>During the year, 14 tiles were created as follows:
>November 1994 - Winston-Salem, New River, Manteo, Hickory
>October 1994 - South Boston
>September 1994 - Wilmington, Myrtle Beach, Elizabethtown
>August 1994 - Virginia Beach, Cape Fear
>June 1994 - Emporia, Elizabeth City, Currituck Sound
>May 1994 - Cape Hatteras
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: REQUIRED: The year (and optionally month, or month and day) for which the data set corresponds to the ground.
Range_of_Dates/Times:
Beginning_Date: 199102
Ending_Date: 199212
Currentness_Reference:
source photography dates
Status:
Progress: Complete
Maintenance_and_Update_Frequency: Irregular
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -84.413160
East_Bounding_Coordinate: -75.426461
North_Bounding_Coordinate: 36.614506
South_Bounding_Coordinate: 33.723735
Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: wetlands
Theme_Keyword: hydrologic
Theme_Keyword: land cover
Theme_Keyword: swamps
Place:
Place_Keyword_Thesaurus: William S. Powell, The North Carolina GAZETTEER, A Dictionary of Tar Heel Places, (Chapel Hill: University of North Carolina Press), August 1984.
Place_Keyword: North Carolina
Access_Constraints: none
Use_Constraints:
Federal, State, and local regulatory
agencies with jurisdiction over wetlands may define and describe
wetlands in a different manner than that used in this inventory.
There is no attempt, in either the design or products of this
inventory, to define the limits of proprietary jurisdiction of any
Federal, State, or local government or to establish the
geographical scope of the regulatory programs of government
agencies.  Persons intending to engage in activities involving
modifications within or adjacent to wetland areas should seek the
advice of appropriate Federal, State, or local agencies concerning
specified agency regulatory programs and proprietary jurisdictions
that may affect such activities.
Acknowledgement of products derived from this data set should cite the
following: The source of the National Wetlands Inventory data is
the North Carolina Corporate Geographic Database. Earlier versions of
this dataset may exist. The user must be sure to use the appropriate
data set for the time period of interest.  While efforts have been made
to ensure that these data are accurate and reliable within the state of
the art, CGIA cannot assume liability for any damages or misrepresentation
caused by any inaccuracies in the data or as a result of changes to the
data caused by system transfers.
Although every effort has been made to ensure the
accuracy of information, errors and conditions originating
from physical sources used to develop the corporate database
may be reflected in the data supplied.  The requesting agency,
corporation, or person(s) must be aware of data conditions and
ultimately bear responsibility for the appropriate use of
the information with respect to possible errors, original
map scale, collection methodology, currency of data, and
other conditions specific to certain data.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Fish & Wildlife Service, National Wetlands Inventory
Contact_Position: Chief Cartographer
Contact_Address:
Address_Type: Mailing and physical address
Address:
9720 Executive Center Drive
City: St.Petersburg
State_or_Province: Florida
Postal_Code: 33702
Country: U.S.A.
Contact_Voice_Telephone: Unknown
Browse_Graphic:
Browse_Graphic_File_Name: http://www.cgia.state.nc.us/graphics/nwi.gif
Browse_Graphic_File_Description:
Status Map for NC
Browse_Graphic_File_Type: Gif
Data_Set_Credit:
>U.S. Fish & Wildlife Service, National Wetlands Inventory
>Chief Cartographer
>9720 Executive Center Drive
>St.Petersburg
>Florida
>
>NCCGIA Director
>Database Administration, Zsolt Nagy
>Database Management, Ken Shaffer
>Project Manager, David Giordano
>North Carolina Center for Geographic Information and Analysis
>Governor's Office
>Office of State Planning
>301 North Wilmington Street, Suite 700
>Raleigh, NC 27601-2825
Native_Data_Set_Environment:
Microsoft Windows 2000 Version 5.2 (Build 3790) Service Pack 1; ESRI ArcCatalog 9.1.0.722
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Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Accuracy is tested by manual comparison of the source with
hard copy printouts and/or symbolized display of the digital
wetlands data on an interactive computer graphic system.
In addition, WAMS software (USFWS-NWI) tests the attributes
against a master set of valid wetland attributes.
Logical_Consistency_Report:
Polygons intersecting the
neatline are closed along the border.  Segments making up the outer
and inner boundaries of a polygon tie end-to-end to completely
enclose the area.  Line segments are a set of sequentially numbered
coordinate pairs.  No duplicate features exist nor duplicate points
in a data string.  Intersecting lines are separated into individual
line segments at the point of intersection.  Point data are
represented by two sets of coordinate pairs, each with the same
coordinate values.  All nodes are represented by a single
coordinate pair which indicates the beginning or end of a line
segment.  The neatline is generated by connecting the four corners
of the digital file, as established during initialization of the
digital file.  All data crossing the neatline are clipped to the
neatline and data within a specified tolerance of the neatline are
snapped to the neatline.  Tests for logical consistency are
performed by WAMS verification software (USFWS-NWI).  Once the
7.5 minute extents are map joined into river basin
extents, the data is built for topology.  No edits have been
made since the last build or clean.
Completeness_Report:
All photo-interpretable wetlands are
mapped.  In the treeless prairies, 1/4 acre wetlands are mapped.
In forested areas, small open water and emergent wetlands are
mapped.  In general, the minimum mapping unit is from 1 to 3 acres
depending on the wetland type and the scale and emulsion of the
source aerial photography.  In regions of the country where
evergreen forested wetlands predominate, wetlands smaller than 3
acres may not be mapped.  Thus, a detailed on the ground and
historical analysis of a single site may result in a revision of
the wetland boundaries established through photographic
interpretation.  In addition, some small wetlands and those
obscured by dense forest cover may not be included in this dataset.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
The positional accuracy of the data delivered by the
NWI program is significantly altered at CGIA. This
data was reprojected to NAD83, State Plane, Meters
using ESRI's projection routine in ARC/INFO version 7.2.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: U.S. Geological Survey; U.S. Department of Agriculture; National Aeronautics and Space Administration (NASA)
Publication_Date: 1992
Title:
National Aerial Photography Program (NAPP); National High Altitude Photography (NHAP); Agricultural and Stabilization Conservation Service (ASCS); NASA or special project photography.
Type_of_Source_Media: Transparency
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 197102
Ending_Date: 19921
Source_Currentness_Reference:
Photography dates
Source_Citation_Abbreviation:
None
Source_Contribution:
Wetlands spatial and attribute
information. Scales range from 1:20,000 to 1:132,000 and includes
black and white, color infrared, or natural color aerial photograph
film transparency. Sources vary by quadrangle.
Source_Information:
Source_Citation:
Citation_Information:
Originator: U.S. Geological Survey
Publication_Date: 1992
Title:
USGS 7.5 Minute series quadrangles
Geospatial_Data_Presentation_Form: map
Publication_Information:
Publication_Place: Reston,VA
Publisher: U.S. Geological Survey
Other_Citation_Details:
Maps vary in scale from 20,000, 24000. 25000, 30000, and 62500 and varies for each 7.5' quad.
Type_of_Source_Media: paper
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 1902
Ending_Date: 1992.
Source_Currentness_Reference:
Publication dates
Source_Citation_Abbreviation:
NWI2
Source_Contribution:
Base cartographic data
Source_Information:
Source_Citation:
Citation_Information:
Originator: U.S. Fish & Wildlife Service, National Wetlands Inventory
Publication_Date: 1994.
Title:
Wetlands delineations
Geospatial_Data_Presentation_Form: map
Publication_Information:
Publication_Place: St.Petersburg,Florida
Publisher: U.S. Fish & Wildlife Service, National Wetlands Inventory
Other_Citation_Details:
Base map scale ranges from 20,000, 24000, 25000, 30000, and 62500 and varies for each 7.5' quad
Type_of_Source_Media: stable-base material
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 1979
Ending_Date: 1994.
Source_Currentness_Reference:
Publication dates
Source_Citation_Abbreviation:
NWI3
Source_Contribution:
Wetlands locations and classification
Source_Information:
Source_Citation:
Citation_Information:
Originator: NC Center for Geographic Information and Analysis
Publication_Date: 1999
Title:
NWI maps map joined and projected
Geospatial_Data_Presentation_Form: Map
Publication_Information:
Publication_Place: Raleigh, North Carolina
Publisher: NC Center for Geographic Information and Analysis
Other_Citation_Details:
Projected to NAD83, stateplane, meters
Source_Scale_Denominator: 24000
Type_of_Source_Media: Digital files
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 199411
Ending_Date: 1999
Source_Currentness_Reference:
Data conversion dates
Source_Citation_Abbreviation:
None
Source_Contribution:
Digital files were converted in projection,
datum, and measurement units, and map joined to
river basin map extents and are stored as a map library.
Process_Step:
Process_Description:
NWI maps are compiled through
manual photointerpretation of NHAP or NAPP aerial photography
supplemented by Soil Surveys and field checking of wetland photo
signatures. Delineated wetland boundaries are manually transferred
from interpreted photos to USGS 7.5 minute topographic quadrangle
maps and then manually labelled.  Quality control steps occur
throughout the photointerpretation, map compilation, and map
reproduction processes. NWI1 and NWI2 data were used in this
1994 process.  Digital wetlands data are
either manually digitized or scanned from stable-base copies of the
1:24,000 scale wetlands overlays registered to the standard U.S.
Geological Survey (USGS) 7.5 minute quadrangles into topologically
correct data files using Wetlands Analytical Mapping System (WAMS)
software.  Files contain ground planimetric coordinates and wetland
attributes. The quadrangles were referenced to the North American
Datum of 1927 (NAD27) horizontal datum.  The scanning process
captured the digital data at a scanning resolution of at least
0.001 inches; the resulting raster data were vectorized and then
attributed on an interactive editing station.  Manual digitizing
used a digitizing table to capture the digital data at a resolution
of at least 0.005 inches; attribution was performed as the data
were digitized.  The determination of scanning versus manual
digitizing production method was based on feature density, source
map quality, feature symbology, and availability of production
systems.  The data were checked for position by comparing plots of
the digital data to the source material.
Process_Date: Unknown
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Fish & Wildlife Service, National Wetlands Inventory
Contact_Position: Chief Cartographer
Contact_Address:
Address_Type: Mailing and physical address
Address:
9720 Executive Center Drive
City: St.Petersburg
State_or_Province: Florida
Postal_Code: 33702
Country: U.S.A.
Contact_Voice_Telephone: Unknown
Contact Instructions:
US Fish and Wildlife Homepage functional
Process_Step:
Process_Description:
NWI quads were downloaded through ftp to
CGIA and converted to NAD 27, stateplane, feet.  They were then
map joined into USGS 100 k map extent files. These had the
neatlines dissovled, and the data was joined into a statewide
file.  This file was clipped to river basin extents and the
files projected to nad83, state plane, meters.  The data
is stored by river basin tile in a GIS data library.
Process_Date: 199905
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: David Giordano
Contact_Organization: NCCGIA
Contact_Position: GIS Analyst
Contact_Address:
Address_Type: Mailing and physical address
Address:
301 North Wilmington Street, Suite 700
City: Raleigh
State_or_Province: North Carolina
Postal_Code: 27601-2825
Country: U.S.A.
Contact_Voice_Telephone: (919) 733-2090
Contact_Facsimile_Telephone: (919)715-0725
Contact_Electronic_Mail_Address: data@cgia.state.nc.us
Hours_of_Service: 8:30AM - 5:30PM
Contact Instructions:
Phone and electronic mail preferred
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Spatial_Data_Organization_Information:
Indirect_Spatial_Reference_Method:
None
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: String
Point_and_Vector_Object_Count: 485302
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains
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Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Grid_Coordinate_System:
Grid_Coordinate_System_Name: State Plane Coordinate System 1983
State_Plane_Coordinate_System:
SPCS_Zone_Identifier: 3200
Lambert_Conformal_Conic:
Standard_Parallel: 34.333333
Standard_Parallel: 36.166667
Longitude_of_Central_Meridian: -79.000000
Latitude_of_Projection_Origin: 33.750000
False_Easting: 609601.220000
False_Northing: 0.000000
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.002020
Ordinate_Resolution: 0.002020
Planar_Distance_Units: meters
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257222
Vertical_Coordinate_System_Definition:
Altitude_System_Definition:
Altitude_Resolution: 1.000000
Altitude_Encoding_Method: Explicit elevation coordinate included with horizontal coordinates
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Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: onemap_prod.SDEADMIN.nwi_arc
Entity_Type_Definition:
Wetlands are lands transitional between terrestrial and aquatic systems where the water table is usually at or near the surface or the land is covered by shallow water. For purposes of this classification wetlands must have one or more of the following three attributes: 1) at least periodically, the land supports predominantly hydrophytes; 2) the substrate is predominantly undrained hydric soil; and 3) the substrate is non-soil and is saturated with water or covered by shallow water at some time during the growing season of each year.
Entity_Type_Definition_Source:
Cowardin, L.M., V. Carter, F. Golet, and E. LaRoe. 1979. Classification of wetlands and deepwater habitats of the United States. U.S. Fish Wildlife Service. 103 pp.
Attribute:
Attribute_Label: OBJECTID
Attribute_Definition:
Internal feature number.
Attribute_Definition_Source:
ESRI
Attribute_Domain_Values:
Unrepresentable_Domain:
Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute_Label: FNODE_
Attribute:
Attribute_Label: TNODE_
Attribute:
Attribute_Label: LPOLY_
Attribute:
Attribute_Label: RPOLY_
Attribute:
Attribute_Label: LENGTH
Attribute:
Attribute_Label: NWI_
Attribute:
Attribute_Label: NWI_ID
Attribute:
Attribute_Label: NWI_NAME
Attribute:
Attribute_Label: NWI_SYSTEM
Attribute:
Attribute_Label: NWI_CLASS
Attribute:
Attribute_Label: NWI_REGIME
Attribute:
Attribute_Label: FID
Attribute_Definition:
Internal feature number.
Attribute_Definition_Source:
ESRI
Attribute_Domain_Values:
Unrepresentable_Domain:
Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute_Label: NWI_SOIL
Attribute:
Attribute_Label: NWI_TITAL
Attribute:
Attribute_Label: SHAPE
Attribute_Definition:
Feature geometry.
Attribute_Definition_Source:
ESRI
Attribute_Domain_Values:
Unrepresentable_Domain:
Coordinates defining the features.
Attribute:
Attribute_Label: Shape
Attribute_Definition:
Feature geometry.
Attribute_Definition_Source:
ESRI
Attribute_Domain_Values:
Unrepresentable_Domain:
Coordinates defining the features.
Attribute:
Attribute_Label: NWI_CHEMIS
Attribute:
Attribute_Label: NWI_SPECIA
Detailed_Description:
Entity_Type:
Entity_Type_Label: Wetlands
Entity_Type_Definition:
Wetlands are lands transitional between terrestrial and aquatic systems where the water table is usually at or near the surface or the land is covered by shallow water. For purposes of this classification wetlands must have one or more of the following three attributes: 1) at least periodically, the land supports predominantly hydrophytes; 2) the substrate is predominantly undrained hydric soil; and 3) the substrate is non-soil and is saturated with water or covered by shallow water at some time during the growing season of each year. Drainage area defined by ridgelines or maximum distance from intake.
Entity_Type_Definition_Source:
Cowardin, L.M., V. Carter, F. Golet, and E. LaRoe. 1979. Classification of wetlands and deepwater habitats of the United States. U.S. Fish Wildlife Service. 103 pp.
Attribute:
Attribute_Label: FNODE#
Attribute_Definition:
From-node identifier of linear feature
Attribute_Definition_Source:
Software computed
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: varies by tile
Range_Domain_Maximum: varies by tile
Attribute_Measurement_Frequency:
None planned
Attribute:
Attribute_Label: TNODE#
Attribute_Definition:
To-node identifier of linear feature
Attribute_Definition_Source:
Software computed
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: varies by tile
Range_Domain_Maximum: varies by tile
Attribute_Measurement_Frequency:
None planned
Attribute:
Attribute_Label: LPOLY#
Attribute_Definition:
Internal number of poly to left of arc
Attribute_Definition_Source:
Software computed
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: varies by tile
Range_Domain_Maximum: varies by tile
Attribute_Measurement_Frequency:
None planned
Attribute:
Attribute_Label: RPOLY#
Attribute_Definition:
Internal number of poly to right of arc
Attribute_Definition_Source:
Software computed
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: varies by tile
Range_Domain_Maximum: varies by tile
Attribute_Measurement_Frequency:
None planned
Attribute:
Attribute_Label: LENGTH
Attribute_Definition:
Length of arc in coverage units
Attribute_Definition_Source:
Software computed
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: varies by tile
Range_Domain_Maximum: varies by tile
Attribute_Units_of_Measure: meters
Attribute_Measurement_Resolution: 10.0
Attribute_Measurement_Frequency:
As needed
Attribute:
Attribute_Label: NWI#
Attribute_Definition:
Internal feature number
Attribute_Definition_Source:
Software computed
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: varies by tile
Range_Domain_Maximum: varies by tile
Attribute_Measurement_Frequency:
As needed
Attribute:
Attribute_Label: NWI-ID
Attribute_Definition:
Internal identification number
Attribute_Definition_Source:
User defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: varies by tile
Range_Domain_Maximum: varies by tile
Attribute_Measurement_Frequency:
As needed
Attribute:
Attribute_Label: NWI-NAME
Attribute_Definition:
Classification of the wetland
Attribute_Definition_Source:
Cowardin, L.M., V. Carter, F. Golet, and E. LaRoe. 1979.
Classification of wetlands and deepwater habitats of the
United States. U.S. Fish Wildlife Service. 103 pp.
Attribute_Domain_Values:
Codeset_Domain:
Codeset_Name: Valid wetland classification code list
Codeset_Source: Photointerpretation Conventions for the National Wetlands Inventory, March 1990
Attribute_Measurement_Frequency:
None planned
Attribute:
Attribute_Label: NWI-SYSTEM
Attribute_Definition:
Classification of the wetland system.
These include Marine, open ocean and associated coastline;
Estuarine, salt marshes and brackish tidal water;
Riverine, rivers, creeks, and streams;
Lacustrine, lakes and deep ponds;
Palustrine, shallow ponds, marshes, swamps, sloughs
Sytems are further subdivided into subsystems which relect
hydrologic conditions.
Attribute_Definition_Source:
United States. U.S. Fish Wildlife Service
Attribute_Domain_Values:
Codeset_Domain:
Codeset_Name: Valid wetland classification code
Codeset_Source: United States. U.S. Fish Wildlife Service
Attribute_Measurement_Frequency:
None planned
Attribute:
Attribute_Label: NWI-CLASS
Attribute_Definition:
Classification of the wetland by
appearance of the wetland in terms of vegetation or substrate.
Attribute_Definition_Source:
United States. U.S. Fish Wildlife Service
Attribute_Domain_Values:
Codeset_Domain:
Codeset_Name: Valid wetland classification code
Codeset_Source: United States. U.S. Fish Wildlife Service
Attribute_Measurement_Frequency:
None planned
Attribute:
Attribute_Label: NWI-REGIME
Attribute_Definition:
Additional subclassification see citation below
Attribute_Definition_Source:
United States. U.S. Fish Wildlife Service
Attribute_Domain_Values:
Codeset_Domain:
Codeset_Name: Valid wetland classification code
Codeset_Source: United States. U.S. Fish Wildlife Service
Attribute_Measurement_Frequency:
None planned
Attribute:
Attribute_Label: NWI-TITAL
Attribute_Definition:
Additional subclassification see citation below
Attribute_Definition_Source:
United States. U.S. Fish Wildlife Service
Attribute_Domain_Values:
Codeset_Domain:
Codeset_Name: Valid wetland classification code
Codeset_Source: United States. U.S. Fish Wildlife Service
Attribute_Measurement_Frequency:
None planned
Attribute:
Attribute_Label: NWI-CHEMISTRY
Attribute_Definition:
Additional subclassification see citation below
Attribute_Definition_Source:
United States. U.S. Fish Wildlife Service
Attribute_Domain_Values:
Codeset_Domain:
Codeset_Name: Valid wetland classification code
Codeset_Source: United States. U.S. Fish Wildlife Service
Attribute_Measurement_Frequency:
None planned
Attribute:
Attribute_Label: NWI-SOIL
Attribute_Definition:
Additional subclassification see citation below
Attribute_Definition_Source:
United States. U.S. Fish Wildlife Service
Attribute_Domain_Values:
Codeset_Domain:
Codeset_Name: Valid wetland classification code
Codeset_Source: United States. U.S. Fish Wildlife Service
Attribute_Measurement_Frequency:
None planned
Attribute:
Attribute_Label: NWI-SPECIAL
Attribute_Definition:
Additional subclassification see citation below
Attribute_Definition_Source:
United States. U.S. Fish Wildlife Service
Attribute_Domain_Values:
Codeset_Domain:
Codeset_Name: Valid wetland classification code
Codeset_Source: United States. U.S. Fish Wildlife Service
Attribute_Measurement_Frequency:
None planned
Attribute:
Attribute_Label: FIPS
Attribute_Definition:
County Federal Information Processeing Standards Code
Attribute_Definition_Source:
U.S. Department of the Interior, U.S. Geological Survey
Attribute_Domain_Values:
Codeset_Domain:
Codeset_Name: Federal Information Processing Standard Codes
Codeset_Source: U.S. Dept. of the Interior, U.S. Geological Survey
Attribute_Measurement_Frequency:
None planned
Overview_Description:
Entity_and_Attribute_Overview:
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).

>NWI.PAT  Polygon Attribute Table
>COL  ITEM NAME         WDTH OPUT TYP N.DEC  ALTERNATE NAME
>1   AREA                4   12  F    3
>5   PERIMETER           4   12  F    3
>9   NWI#                4    5  B    -
>13  NWI-ID              4    5  B    -
>17  NWI-NAME           20   20  C    -
>37  FIPS                3    3  I    -
>
>NWI.AAT  Arc Attribute Table
>COL  ITEM NAME         WDTH OPUT TYP N.DEC  ALTERNATE NAME
>1   FNODE#              4    5  B    -
>5   TNODE#              4    5  B    -
>9   LPOLY#              4    5  B    -
>13  RPOLY#              4    5  B    -
>17  LENGTH              4   12  F    3
>21  NWI#                4    5  B    -
>25  NWI-ID              4    5  B    -
>29  NWI-NAME           20   20  C    -
>49  NWI-SYSTEM          2    2  C    -
>51  NWI-CLASS           7    7  C    -
>58  NWI-REGIME          3    3  C    -
>61  NWI-TITAL           1    1  C    -
>62  NWI-CHEMISTRY       1    1  C    -
>63  NWI-SOIL            1    1  C    -
>64  NWI-SPECIAL         1    1  C    -
>65  FIPS                3    3  I    -
Entity_and_Attribute_Detail_Citation:
Cowardin, L.M., V. Carter, F. Golet, and E. LaRoe. 1979.
Classification of wetlands and deepwater habitats of the
United States. U.S. Fish Wildlife Service. 103 pp.
Photointerpretation Conventions for the National Wetlands
Inventory, March 1990
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Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: NC Center for Geographic Information and Analysis
Contact_Position: Production Services
Contact_Address:
Address_Type: Mailing and physical address
Address:
301 North Wilmington Street, Suite 700
City: Raleigh
State_or_Province: North Carolina
Postal_Code: 27601-2825
Country: USA
Contact_Voice_Telephone: (919) 733-2090
Contact_Facsimile_Telephone: (919) 715-0725
Contact_Electronic_Mail_Address: dataq@cgia.state.nc.us
Hours_of_Service: 8:30AM - 5:30PM
Contact Instructions:
Phone and electronic mail preferred
For current price information use a web browser:
COST INFORMATION - http://www.cgia.state.nc.us/cost.html
Resource_Description: National Wetland Inventory
Distribution_Liability:
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of the State's corporate geographic  database and, in
cooperation with other mapping  organizations, is
committed to offering its users accurate, useful, and
current information about the state. Although every
effort has been made to ensure the accuracy of information,
errors and conditions originating from physical sources
used to develop the corporate database may be reflected
in the data supplied.  The client must be aware of data
conditions and bear responsibility for the appropriate
use of the information with respect to possible errors,
original map scale, collection methodology, currency
of data, and other conditions specific to certain data.
NCCGIA does not support secondary distribution of this
data.  The use of trade names or commercial products does
not constitute their endorsement by the NCCGIA or North
Carolina State Government.
Standard_Order_Process:
Non-digital_Form:
FOR DIGITAL OR NON-DIGITAL DATA, Contact NC CGIA, Data Distribution to order data, Phone 919.733.2090 ... Email dataq@cgia.state.nc.us ... Web Page order form http://www.cgia.state.nc.us/cgdb/index.html
Digital_Form:
Digital_Transfer_Information:
Transfer_Size: 268.223
Fees: For current FORMAT/MEDIA INFORMATION, use a web browser: http://www.cgia.state.nc.us/cost.html or phone NC CGIA Data Distribution 919.733.2090
Custom_Order_Process:
Data creation and large data analysis jobs contact
Database Administration P:(919)733-2090. All data
is available through standard ordering procedures on a
cost recovery basis.
Technical_Prerequisites:
All formats supplied are created using ARC/INFO GIS software on Unix workstations. Other formats are available. Format compatibility is the user's responsibility. For more information on formats and media, use a web browser: FORMAT/MEDIA INFORMATION - http://www.cgia.state.nc.us/cost.html
Available_Time_Period:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 199405
Ending_Date: Present
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Metadata_Reference_Information:
Metadata_Date: 20060316
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: North Carolina Center for Geographic Information and Analysis
Contact_Person: REQUIRED: The person responsible for the metadata information.
Contact_Position: Database Management
Contact_Address:
Address_Type: Mailing and physical address
Address:
301 North Wilmington Street, Suite 700
City: Raleigh
State_or_Province: North Carolina
Postal_Code: 27601-2825
Country: USA
Contact_Voice_Telephone: (919) 733-2090
Contact_Facsimile_Telephone: (919) 715-0725
Contact_Electronic_Mail_Address: dataq@cgia.state.nc.us
Hours_of_Service: 8:30AM - 5:30PM
Contact Instructions:
Phone and electronic mail preferred
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
Metadata_Access_Constraints: None
Metadata_Use_Constraints:
This metadata file is to accompany the data set identified and received from NCCGIA. NCCGIA does not support secondary distribution. If this data file was received from anyone besides NCCGIA, this metadata file and the data set it describes may contain discrepancies.
Metadata_Extensions:
Online_Linkage: http://www.esri.com/metadata/esriprof80.html
Profile_Name: ESRI Metadata Profile
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Online_Linkage: http://www.esri.com/metadata/esriprof80.html
Profile_Name: ESRI Metadata Profile
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