SEWRPC 2005 Regional Wetland Inventory

Metadata:


1.  Identification_Information:

Citation:
Citation_Information:
Originator:
Southeastern Wisconsin Regional Planning Commission and the Wisconsin Department of Natural Resources
Publication_Date: 2006-2007
Title: SEWRPC 2005 Regional Wetland Inventory
Geospatial_Data_Presentation_Form: vector digital data
Publication_Information:
Publication_Place: Waukesha, Wisconsin
Publisher:
Southeastern Wisconsin Regional Planning Commission, in cooperation with the Wisconsin Department of Natural Resources
Description:
Abstract:
This data set consists of digital map files containing point, line, and polygon features of wetland information covering Kenosha, Milwaukee, Ozaukee, Racine, Walworth, Washington, and Waukesha Counties. The files were compiled by the Southeastern Wisconsin Regional Planning Commission on behalf of the Wisconsin Department of Natural Resources as part of a cooperative agreement to update the Wisconsin Wetland Inventory in Southeastern Wisconsin. Each file covers one U.S. Public Land Survey System survey township, for a total of 82 files in the data set. The digital map files were compiled with reference to one-inch-equals-100-feet-scale and one-inch-equals-200-feet-scale orthophotography acquired in the Spring of 2005, and also with reference to land use, vegetation, topographic, and soils information. The digital map files are available in ESRI geodatabase format.
Purpose:
This data set was collected to provide wetland information for use in county, city, village, and town planning activities in the respective counties and for regional planning activities in Southeastern Wisconsin.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2005
Currentness_Reference:
The wetland delineations were prepared from large-scale orthophotography obtained in April and May of 2005. Some wetland areas were field checked in 2006 and 2007 to confirm wetland boundaries and characteristics.
Status:
Progress: In work
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -88.800
East_Bounding_Coordinate: -87.712
North_Bounding_Coordinate: 43.561
South_Bounding_Coordinate: 42.484
Keywords:
Theme:
Theme_Keyword_Thesaurus: Wisconsin Land Information Program Thesaurus
Theme_Keyword: wetlands
Theme_Keyword: digital wetland mapping
Theme_Keyword: Wisconsin Wetland Inventory
Place:
Place_Keyword_Thesaurus:
Counties and County Equivalents of the States of the United States and the District of Columbia (FIPS Pub 6-3)
Place_Keyword: Kenosha County
Place_Keyword: Milwaukee County
Place_Keyword: Ozaukee County
Place_Keyword: Racine County
Place_Keyword: Walworth County
Place_Keyword: Washington County
Place_Keyword: Waukesha County
Access_Constraints:
There are no legal prerequisites for accessing this data set. Potential users should contact the Southeastern Wisconsin Regional Planning Commission, GIS Division or Environmental Division.
Use_Constraints:
The wetland delineations in this data set were compiled with reference to large-scale orthophotography obtained in April and May 2005. Selected wetland areas were field checked in 2006 and 2007. The wetland mapping may not reflect current conditions, therefore site investigation may be necessary to determine existing wetland boundaries and wetland conditions.


2.  Data_Quality_Information:

Logical_Consistency_Report:
The wetland features in this data set were delineated with reference to large-scale orthophotography, large-scale topographic maps, and previous wetland and land use delineations. The digital map files in the data set were reviewed to insure that all features are correctly represented and properly attributed and symbolized. The files were also inspected to insure that all features are complete and correctly organized in the files.
Completeness_Report:
The wetland inventory data set covers the seven-county Southeastern Wisconsin Region, consisting of Kenosha, Milwaukee, Ozaukee, Racine, Walworth, Washington, and Waukesha Counties. This data set was delineated by the Southeastern Wisconsin Regional Planning Commission Environmental Division and digitized by the Commission's GIS Division. The wetland features were delineated according to the definitions of the Wisconsin Wetland Inventory Classification Guide, with the addition of special features such as drained wetlands and drainage ditches. The source materials for this inventory were of relatively large scale; therefore the minimum mapping unit for this inventory is 0.25 acres as opposed to the minimum mapping unit of 2.0 acres used for the original Wisconsin Wetland Inventory. To the best knowledge of the Commission GIS Division, this data set includes all of the intended features digitized from the source hardcopy materials.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
The wetland features in this data set were created with reference to digital and hardcopy orthophotography and topographic mapping prepared to meet National Map Accuracy Standards (NMAS) for one-inch-equals-100-feet (1"=100') scale or one-inch-equals-200-feet (1"=200') scale mapping. However, the features were delineated on hardcopy orthophoto plots prepared at one-inch-equals-400-feet (1"=400') scale. The features are considered to be delineated and digitized to the accuracy of 200-scale mapping. Therefore, ninety percent or more of all well-defined planimetric features in this data set are within 6.6 feet of their true position on the ground. This data set generally does not depict "well-defined planimetric features" but does show wetland boundaries and locations to the accuracy of the NMAS specifications.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator:
Various agencies, including Aero-Metric, Inc., Sheboygan, WI, and Ayres Associates, Madison, WI (topographic mapping and digital orthophotography), USDA Natural Resources Conservation Service (SSURGO soils data), Wisconsin Department of Natural Resources, and the Southeastern Wisconsin Regional Planning Commission.
Publication_Date: unknown
Title:
Large-scale digital and hardcopy orthophotography, large-scale digital and hardcopy topographic mapping, aerial photography stereo prints, USDA FSA wetland maps, USDA Natural Resources Conservation Service SSURGO soils data, Wisconsin Department of Natural Resources (WDNR) list of aquatic and hydrophytic plants, WDNR Wisconsin Wetland Inventory delineations, SEWRPC land use and vegetation inventories.
Geospatial_Data_Presentation_Form:
tabular data, vector digital data, hardcopy maps, digital and hardcopy aerial orthophotography, hardcopy aerial photo prints
Publication_Information:
Publication_Place: Various locations and Waukesha, Wisconsin
Publisher:
Various publishers, including the Wisconsin Department of Natural Resources and the Southeastern Wisconsin Regional Planning Commission
Source_Scale_Denominator: 1200, 2400, 4800
Type_of_Source_Media: paper, mylar, digital files
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 1970 (approximately)
Ending_Date: present
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: none
Source_Contribution:
The source materials were used to determine and delineate wetland boundaries and related features on large-scale orthophotography plots.
Process_Step:
Process_Description:
This data set was prepared by the staff of the Southeastern Wisconsin Regional Planning Commission (SEWRPC) using a methodology similar to the original Wisconsin Wetland Inventory (WWI). The wetland features were delineated on hardcopy plots of 2005 color orthophotography generated at 1"=400' scale. The orthophoto plots also contained two-foot contour interval contour and depression lines, wetland boundaries from the SEWRPC 2000 land use inventory, older wetland boundaries and labels from the SEWRPC 1985 vegetation inventory, SEWRPC project area boundaries, and SEWRPC field-checked wetland boundaries (where available). Additional materials used for reference in the delineation process included hydric soil units from the Natural Resources Conservation Service SSURGO soils data set, a created wetlands data set covering Ozaukee County only, and stereo prints of hardcopy aerial photography from the SEWRPC 2005 regional orthophotography inventory.

The wetland features were delineated on the hardcopy orthophoto plots by trained biologists. Because the source materials were of relatively large scale, the minimum mapping unit for this data set is 0.25 acres, as opposed to 2.0 acres in the original WWI. The classification codes from the original WWI were followed with slight modification. For example, a line feature to identify drainage ditches (code "DD") too narrow to be depicted as polygons (generally narrower than 100 feet on the ground) was added. A point feature to show the location of drained wetlands (code "DW") was also added to show small areas that have been effectively drained for agriculture.

Wetlands and ponds less than 0.25 acres in size were located as point features. As in the original WWI, wetland polygons that contain at least 30 percent cover of a second wetland cover type were given a mixed label of two classification codes.

Wetland features were delineated after reviewing any available SEWRPC environmental project files for a given area. Field-verified wetland boundaries were directly copied (or plotted if in digital format) onto the orthophoto plots. Reference materials, such as digital files of hydric soil units and hardcopy USDA Food Security Act (FSA) wetland maps, were consulted to identify and confirm wetland features. Delineations were made using previous wetland boundaries from SEWRPC 2000 land use and 1985 vegetation inventories as a guide. Hardcopy prints of stereo aerial photography from 2005 were also used to locate and confirm wetland areas. In some cases the SEWRPC staff made field checks to verify wetland locations and boundaries.

The wetland delineations were then board digitized by SEWRPC staff. The features were collected into ESRI geodatabase format files and the digital map files were reviewed for accuracy and completeness. Hardcopy plots of the wetland features on a background of 2005 orthophotography were generated at 1"=400' scale for review by Commission staff. Corrections were annotated on the plots and the digital files were revised as necessary. A second set of hardcopy plots was generated from the revised files for delivery to the Wisconsin Department of Natural Resources (WDNR). The geodatabase files were translated to ESRI shapefile format, and the shapefiles were converted to the Wisconsin Transverse Mercator (WTM 83/91) coordinate system for delivery to the WDNR. After review of the hardcopy and digital products by the WDNR, SEWRPC staff made any necessary corrections to the geodatabase files and final versions of the shapefiles were delivered to the WDNR.

Process_Date: 2006-2007

3.  Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type:
String


4.  Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:
Planar:
Grid_Coordinate_System:
Grid_Coordinate_System_Name: State Plane Coordinate System 1927
State_Plane_Coordinate_System:
SPCS_Zone_Identifier: 4803
Lambert_Conformal_Conic:
Standard_Parallel: 42.733300
Standard_Parallel: 44.066700
Longitude_of_Central_Meridian: -90.00
Latitude_of_Projection_Origin: 42.00
False_Easting: 2000000.000000
False_Northing: 0
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.0001
Ordinate_Resolution: 0.0001
Planar_Distance_Units: survey feet
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1927
Ellipsoid_Name: Clarke 1866
Semi-major_Axis: 6378206.400000
Denominator_of_Flattening_Ratio: 294.980000

5.  Entity_and_Attribute_Information:

Overview_Description:
Entity_and_Attribute_Overview:
This data set consists of a set of ESRI geodatabase and shapefile format map files covering the Southeastern Wisconsin Region. The geodatabase files contain point, line, and polygon features organized into the following four feature classes:

1) Wetland_Point -- consists of locations for wetland point symbols. The five major attributes collected for these features and their descriptions are as follows: [1] "PLS" (five-digit code that identifies the USPLSS survey township and its range direction); [2] "COUNTYID" (two-digit county code); [3] "CNTYNAME" (full county name); [4] "SYMBOL" (code for wetland point symbol; domain values are: 'WETLAND' = wetland smaller than one-fourth acre, '$WETLAND' = filled wetland smaller than one-fourth acre; 'POND' = pond smaller than one-fourth acre, 'DW' = drained wetland, and 'UPLAND' = upland surrounded by wetland); and [5] "DIGITIZED" (date of digitization in month and year). The majority of these attributes are similar to the attributes in the Wisconsin Wetland Inventory; the values for "SYMBOL" have been modified slightly and two features have been added to this field.

2) Wetland_Line -- contains line features depicting drainage ditches (identified by a major attribute field named "CODE" with domain value of 'DD'). These drainage ditch features are not part of the Wisconsin Wetland Inventory and are used as reference for Southeastern Wisconsin Regional Planning Commission projects and planning activities.

3) Dam_Line -- contains line features depicting the outline of earthen or other types of dams that create ponds or wetlands. These features are identified by a major attribute field named "CODE" with a domain value of 'DAM'.

4) Wetland_Poly -- this feature class contains polygons delineating the boundaries of wetlands and some upland areas. The ten major attributes collected for these features and their descriptions are as follows: [1] "PLS" (five-digit code that identifies the USPLSS survey township and its range direction); [2] "COUNTYID" (two-digit county code); [3] "CNTYNAME" (full county name); [4] "ORIGCODE" (original wetland classification); [5] "DIGITIZED" (date of digitization in month and year); [6] "WETCODE" (the current wetland classification, generally the same as "ORIGCODE"); [7] "CLASS" (generalized description of wetland classification); [8] "MINUNIT" (minimum mapping unit of two acres or less); [9] "PHOTODATE" ('2005' for this inventory); and [10] "MAPTYPE" (uppercase letter 'O' indicating orthophoto base). These attributes are a subset of the attributes in the Wisconsin Wetland Inventory.

The "WETCODE" and "ORIGCODE" polygon attributes are 10-character fields that uniquely identify each wetland polygon by type. The Wisconsin Wetland Inventory Classification Guide describes the vegetation class, subclass, and general hydrologic characteristics of the wetland area. A single classification code generally contains up to four alphanumeric characters (e.g. 'T3K'). If a second class of vegetation covers 30 percent or more of the polygon, then codes for both types of vegetation, separated by a slash ("/"), are placed in the attribute field (e.g. 'S3/E2Kg'). The dollar sign ("$") placed as a prefix before a code indicates a filled wetland (e.g '$T3K').

Each geodatabase file is organized to cover one U.S. Public Land Survey System survey township, for a total of 82 files in the data set. The file naming convention is "WI05_ttrr.mdb", where "WI05" indicates the 2005 wetland inventory, "ttrr" indicates the USPLSS township and range covered by the file, and ".mdb" indicates an ESRI geodatabase file. The files were compiled with reference to one-inch-equals-100-feet scale and one-inch-equals-200-feet scale orthophotography, and with reference to similar scale digital topographic mapping.

The township geodatabase files have also been merged into larger files covering each of the seven counties in the Southeastern Wisconsin Region. The county geodatabase files have been simplified such that the point feature class retains only the "SYMBOL" major attribute field, and the polygon feature class retains only the "WETCODE" and "CLASS" major attribute fields.

Entity_and_Attribute_Detail_Citation:
This data set is similar to the digital Wisconsin Wetland Inventory. Detailed information about the Wisconsin Wetland Inventory data set is available in a document entitled "Wisconsin Digital Wetland Inventory (DWI) -- Digital Data Order Form" available from the Wisconsin Department of Natural Resources (WDNR) website at the following location: <http://dnr.wi.gov/wetlands/documents/DigitalWetlandOrderform.pdf>

See the section of the document named "Digital Wisconsin Wetland Inventory Layer Description".

Detailed information about the Wisconsin Wetland Inventory can be found in the publication entitled "Wisconsin Wetland Inventory Classification Guide" (PUBL-WZ-WZ023, February 1992) available on the WDNR website at the following location: <http://dnr.wi.gov/wetlands/documents/WWI_Classification.pdf>

Additional information about the Wisconsin Wetland Inventory, including publications and acreage reports, can be found on the WDNR website at the following location: <http://dnr.wi.gov/wetlands/inventory.html>



Components of the Wisconsin Wetland Inventory Classification System
The classification codes describe the class, subclass, and general hydrologic characteristics of a wetland mapping unit. Some classification codes will also have a "special modifier". The classification code will usually contain 3 or 4 letters and digits, as shown below. When small patches of different covertypes (at least 30% of the cover) are intermingled within the wetland mapping unit, a mixed classification code will be used. Mixed classes are separated by a slash (e.g., T3 / S3K), with the taller form of vegetation listed first.


 

Class

|

 

Hydrologic

Modifier

|

 

E

1

K

a

 

|

Subclass

 

|

Special

Modifier

 

 

CLASS and SUBCLASS

 

A - Aquatic Bed

     1   Submergent

     2   Floating

     3   Rooted floating

     4   Free floating

 

M - Moss

 

E - Emergent / Wet Meadow

     1   Persistent

     2   Narrow-leaved persistent

     3   Broad-leaved persistent

     4   Nonpersistent

     5   Narrow-leaved nonpersistent

     6   Broad-leaved nonpersistent

 

S - Scrub / Shrub

     1   Deciduous

     2   Needle-leaved deciduous

     3   Broad-leaved deciduous

     4   Evergreen

     5   Needle-leaved evergreen

     6   Broad-leaved evergreen

     7   Dead

     5   Needle-leaved

     6   Broad-leaved

 

T - Forested

     1   Deciduous

     2   Needle-leaved deciduous

     3   Broad-leaved deciduous

     5   Needle-leaved evergreen

     7   Dead

     8   Needle-leaved

 

F - Flats / Unvegetated Wet Soil

     0   Subclass unknown

     1   Cobble / gravel

     2   Sand

     3   Mud

     4   Organic

     5   Vegetated pioneer

 

W - Open Water

     0   Subclass unknown

     1   Cobble / gravel

     2   Sand

     3   Mud

     4   Organic

     5   Vegetated pioneer

 

U - Upland

 

 

HYDROLOGIC MODIFIER

 

 L   Standing water, Lake

 R   Flowing water, River

 H   Standing water, Palustrine

 K   Wet soil, Palustrine

 

 

 

 

SPECIAL MODIFIER

 

 a   Abandoned cropland

 c   Manmade cranberry bog

 e   Exposed flats complex

 f    Farmed in dry years

 g   Grazed

 j    Central Sands complex

 m  Floating vegetated mats

 r    Red clay complex

 s   Ridge and swale complex

 v   Vegetation recently removed

 w  Floodplain complex

 x   Excavated

 z   Evidence of muskrat activity

 

 

Source: The "Wisconsin Wetland Inventory Classification Guide" (PUBL-WZ-WZ023, February 1992) published by the Wisconsin Department of Natural Resources.


6.  Distribution_Information:

Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Southeastern Wisconsin Regional Planning Commission
Contact_Position: GIS Manager
Contact_Address:
Address_Type: mailing address
Address: P.O. Box 1607
City: Waukesha
State_or_Province: Wisconsin
Postal_Code: 53187-1607
Contact_Voice_Telephone: (262) 547-6721
Contact_Facsimile_Telephone: (262) 547-1103
Resource_Description: SEWRPC 2005 Regional Wetland Inventory
Distribution_Liability:
This data set was created by the Southeastern Wisconsin Regional Planning Commission (SEWRPC), on behalf of the Wisconsin Department of Natural Resources (WDNR), for use in regional planning activities. Any other use/application of this information is the responsibility of the user and such use/application is at the user's own discretion and risk. The SEWRPC and the WDNR disclaim all liability regarding fitness of the information for any use other than Commission and Department applications.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: ESRI geodatabase and shapefile format
Format_Information_Content: point, line, and polygon features
Transfer_Size: 365
Digital_Transfer_Option:
Offline_Option:
Offline_Media: CD-ROM
Recording_Capacity:
Recording_Density: 640
Recording_Density_Units: megabytes
Recording_Format: ISO 9660 Level 3
Fees:
Generally based upon time required and materials necessary to satisfy data request. Requesters should inquire of contact person.
Ordering_Instructions: Written requests are preferred.
Turnaround:
Varies


7.  Metadata_Reference_Information:

Metadata_Date: 2006-08-11, 2007-07-25, 2009-06-11, 2009-08-14
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
Southeastern Wisconsin Regional Planning Commission, GIS Division
Contact_Position: GIS Manager
Contact_Address:
Address_Type: mailing address
Address: P.O. Box 1607
City: Waukesha
State_or_Province: Wisconsin
Postal_Code: 53187-1607
Contact_Voice_Telephone: (262) 547-6721
Contact_Facsimile_Telephone: (262) 547-1103
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998

Generated by mp version 2.8.18 on Fri Aug 14 09:40:28 2009