Illinois Soil Associations Map (500K)

Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Data_Organization_Information
• Spatial_Reference_Information
• Entity_and_Attribute_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: Illinois State Geological Survey

Publication_Date: 1984

Edition:

1.0 (Note: Although this dataset has been in existence since circa 1984, formal version numbers have not been previously assigned. Thus, this and all previous versions are arbitrarily assigned as version 1.0.)

Title: Illinois Soil Associations Map (500K)

Geospatial_Data_Presentation_Form: map

Series_Information:

Series_Name: ISGS GIS Database

Issue_Identification: soilassoc

Publication_Information:

Publication_Place: Champaign, Illinois

Publisher: Illinois State Geological Survey

Online_Linkage:

Downloadable Data (Shift-Click to download data file) <URL:http://www.isgs.uiuc.edu/nsdihome/browse/statewide/soilassoc.e00>

Online_Linkage:

Browse Graphic (GIF) Screen-size image representing the nature of the data. <URL:http://www.isgs.uiuc.edu/nsdihome/browse/statewide/soilassocb.gif>

Online_Linkage:

Text (.txt) version of this Metadata file. (Shift-Click to download documentation) <URL:http://www.isgs.uiuc.edu/nsdihome/outmeta/soilassoc.txt>

Online_Linkage:

HTML (.html) version of this Metadata file. (Shift-Click to download documentation) <URL:http://www.isgs.uiuc.edu/nsdihome/outmeta/soilassoc.html>

Description:

Abstract:

Soil Associations in Illinois, from the General Soil Map of Illinois (Fehrenbacher, 1982). Created in 1984 by ESRI. A soil association is a group of related soil series that generally occur in a characteristic pattern of landscapes that have identifiable topographic features, slopes, and parent materials. The General Soil Map of Illinois (scale 1:500,000) identifies the location and extent of 50 soil association types. This is an Arc/Info polygon coverage.

Purpose:

To spatially identify soils and soil relationships. These data are suitable for regional and statewide uses. It is suggested that these data not be used at scales greater than 1:1,000,000.

Supplemental_Information:

The coverage contains many errors, and is an extremely generalized representation of the source. Linework errors up to 1 mile are common, and in some cases, discreptancies exceed 4 miles. It is advised that these data be used at scales of 1:1,000,000 or smaller. Anyone wishing to utilize the data at a scale of 1:500,000 should seriously consider re-automation of the data. The state boundary with territory extending into Lake Michigan is utilized in this coverage.

Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1984

Currentness_Reference: publication date

Status:

Progress: Complete

Maintenance_and_Update_Frequency: None planned.

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -91.58062731

East_Bounding_Coordinate: -87.02229099

North_Bounding_Coordinate: 42.50050364

South_Bounding_Coordinate: 36.94578309

Keywords:

Theme:

Theme_Keyword_Thesaurus: none

Theme_Keyword: geology

Theme_Keyword: soil

Theme_Keyword: association

Theme_Keyword: surface

Theme_Keyword: surficial

Place:

Place_Keyword_Thesaurus: none

Place_Keyword: Illinois

Access_Constraints: none

Use_Constraints:

Reproduction or redistribution of copyrighted digital data sets or products derived therefrom outside of licensees' organization or entity is expressly forbidden. The only exception is redistribution to consultants working for the licensee, and then only for purposes, related to work for the licensee. Such consultants may not further reproduce or redistribute these data sets. None of these data shall be electronically duplicated on magnetic or optical media for use by others, in whole or in part, without permission of the appropriate custodial division within DNR.

Any hardcopies utilizing DNR data sets shall clearly indicate their source. If the licensee has modified the data in any way they are obligated to describe the types of modifications they have performed on the hardcopy map. Licensee specifically agrees not to misrepresent DNR data sets, nor to imply that changes they made were approved by DNR.

These data are not to be used for commercial profit.

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Robert Krumm

Contact_Address:

Address_Type: mailing and physical address

Address: 615 East Peabody Drive

City: Champaign

State_or_Province: Illinois

Postal_Code: 61820

Country: U.S.A.

Contact_Voice_Telephone: 217-333-4085

Contact_Facsimile_Telephone: 217-333-2830

Contact_Electronic_Mail_Address: krumm@geoserv.isgs.uiuc.edu

Hours_of_Service: 8:00 a.m. - 5:00 p.m., Monday-Friday

Data_Set_Credit:

 Documentation: R. Krumm, D. Nelson and S. Beaverson

Native_Data_Set_Environment:

SunOS, 5.5, sun4m UNIX ARC/INFO version 7.0.4

Cross_Reference:

Citation_Information:

Originator: Illinois State Geological Survey

Publication_Date: 1984

Title: Master Data Set for Illinois Soil Associations Map (500K)

Geospatial_Data_Presentation_Form: map

Series_Information:

Series_Name: ISGS GIS Database

Issue_Identification: soilmstr

Publication_Information:

Publication_Place: Champaign, Illinois

Publisher: Illinois State Geological Survey

Online_Linkage:

Data Set Documentation <URL:http://www.isgs.uiuc.edu/nsdihome/outmeta/soilmstr.html>

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report: see process step entries

Logical_Consistency_Report: Polygon topology present.

Completeness_Report: see process step entries

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report: see process step entries

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator: Fehrenbacher, J.B.

Publication_Date: 1982

Title: General Soil Map of Illinois

Geospatial_Data_Presentation_Form: map

Publication_Information:

Publication_Place: Illinois Agricultural Experiment Station

Publisher: University of Illinois at Urbana-Champaign

Source_Scale_Denominator: 500000

Type_of_Source_Media: paper

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1982

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: none

Source_Contribution: linework and attributes

Process_Step:

Process_Description:

This is a legacy data set. Exact original process steps are unknown. However, some considerations during integration included:

 1. In alluvial areas, soil unit boundaries were adjusted
    to corresponding Quaternary geology or Stack-unit
    delineations.
 2. Where alluvial soil units could be verified on the Landsat
    scene, they were extended up drainages for a maximum of an
    additional 0.5 inch.  Further extension would have
    deviated too much from the original map.
 3. When soil units meandered back and forth along drainages,
    they were redrafted to fit the topography and landforms.
 4. Soil units located outside of alluvial areas were not
    integrated unless sliver polygons were created.  In order
    to resolve sliver polygons, the lines created from either
    the Quaternary geology or STACK unit maps were considered
    more definitive.
 5. Soil units were not changed where they extended into mined-
    out areas  shown on either the Stack-unit or Quaternary
    geology maps.

Process_Date: 1984

Process_Step:

Process_Description:

Coverage was given cursory review in August, 1997. There were several label errors. Coverage was re-dissolved from parent coverage SOILDONE. Coverage SOILDONE was moved to directory *path_name_suppressed*/surf and renamed SOILMSTR. Coverage was given cursory review in August, 1997. An overlay of the dataset with the source map shows that the coverage has many linework errors.

Process_Date: 19970825

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Vector

Point_and_Vector_Object_Information:

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: Point

Point_and_Vector_Object_Count: 2784

SDTS_Point_and_Vector_Object_Type: String

Point_and_Vector_Object_Count: 7311

SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains

Point_and_Vector_Object_Count: 2785