State and County boundaries of the state of Iowa
Metadata also available as
Metadata:
- Identification_Information:
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- Citation:
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- Citation_Information:
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- Originator: James D. Giglierano and Madhukar Mohan
- Publication_Date: 1990-11-01
- Title: State and County boundaries of the state of Iowa
- Geospatial_Data_Presentation_Form: vector digital data
- Online_Linkage:
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<ftp://ftp.igsb.uiowa.edu/gis_library/IA_State/Admin_Political_Boundary/county.zip>
- Description:
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- Abstract:
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This coverage contains polygons representing the county boundaries of the state of Iowa. COUNTY was developed from a set of 99 individual coverages of the Public Land Survey System (PLSS) for each county in the state. The PLSS coverages were digitized from paper copies of 7.5' topographic quadrangle maps. River boundaries were also digitized from 7.5' maps roads.
- Purpose:
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This digital, geographically referenced data set was developed by the Iowa Department of Natural Resources to carry out agency responsibilities related to management, protection, and development of Iowa's natural resources.
- Time_Period_of_Content:
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- Time_Period_Information:
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- Single_Date/Time:
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- Calendar_Date: 1991
- Currentness_Reference: ground condition
- Status:
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- Progress: Complete
- Maintenance_and_Update_Frequency: None planned
- Spatial_Domain:
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- Bounding_Coordinates:
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- West_Bounding_Coordinate: -96.684901
- East_Bounding_Coordinate: -90.069432
- North_Bounding_Coordinate: 43.557019
- South_Bounding_Coordinate: 40.332776
- Keywords:
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- Theme:
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- Theme_Keyword_Thesaurus: None
- Theme_Keyword: Counties
- Place:
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- Place_Keyword: Iowa`
- Access_Constraints: None
- Use_Constraints: None
- Point_of_Contact:
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- Contact_Information:
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- Contact_Person_Primary:
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- Contact_Person: Jim Giglierano
- Contact_Organization: Iowa Department of Natural Resources - Iowa Geological Survey
- Contact_Address:
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- Address_Type: mailing and physical address
- Address: 109 Trowbridge Hall
- City: Iowa City
- State_or_Province: IA
- Postal_Code: 52240
- Contact_Voice_Telephone: 319-335-1575
- Contact_Electronic_Mail_Address: jgiglierano@igsb.uiowa.edu
- Native_Data_Set_Environment:
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Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 4; ESRI ArcCatalog 8.3.0.800
- Data_Quality_Information:
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- Positional_Accuracy:
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- Horizontal_Positional_Accuracy:
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- Horizontal_Positional_Accuracy_Report:
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Based on NMAS accuracy standards for USGS 1:24,000 scale maps, digitizer resolution, ARC/INFO fuzzy tolerances, and estimated operator error, the positional accuracy of this coverage is estimated to be around 22 meters. Positional error was estimated using a root-sum-squared error calculation.
- Lineage:
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- Source_Information:
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- Source_Scale_Denominator: 24,000
- Type_of_Source_Media: paper
- Source_Citation_Abbreviation: Paper copies of 7.5' topographic quadrangle maps
- Process_Step:
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- Process_Description: Dataset moved.
- Process_Step:
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- Process_Description: Dataset copied.
- Source_Used_Citation_Abbreviation: C:\Library\NAD27_shape\county
- Process_Step:
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- Process_Description: Dataset copied.
- Source_Used_Citation_Abbreviation:
- Spatial_Data_Organization_Information:
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- Direct_Spatial_Reference_Method: Vector
- Point_and_Vector_Object_Information:
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- SDTS_Terms_Description:
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- SDTS_Point_and_Vector_Object_Type: G-polygon
- Point_and_Vector_Object_Count: 99
- Spatial_Reference_Information:
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- Horizontal_Coordinate_System_Definition:
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- Planar:
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- Grid_Coordinate_System:
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- Grid_Coordinate_System_Name: Universal Transverse Mercator
- Universal_Transverse_Mercator:
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- UTM_Zone_Number: 15
- Transverse_Mercator:
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- Scale_Factor_at_Central_Meridian: 0.999600
- Longitude_of_Central_Meridian: -93.000000
- Latitude_of_Projection_Origin: 0.000000
- False_Easting: 500000.000000
- False_Northing: 0.000000
- Planar_Coordinate_Information:
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- Planar_Coordinate_Encoding_Method: coordinate pair
- Coordinate_Representation:
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- Abscissa_Resolution: 0.001024
- Ordinate_Resolution: 0.001024
- Planar_Distance_Units: meters
- Geodetic_Model:
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- 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
- Entity_and_Attribute_Information:
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- Detailed_Description:
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- Entity_Type:
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- Entity_Type_Label: county
- Attribute:
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- Attribute_Label: FID
- Attribute_Definition: Internal feature number.
- Attribute_Definition_Source: ESRI
- Attribute_Domain_Values:
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- Unrepresentable_Domain:
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Sequential unique whole numbers that are automatically generated.
- Attribute:
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- Attribute_Label: Shape
- Attribute_Definition: Feature geometry.
- Attribute_Definition_Source: ESRI
- Attribute_Domain_Values:
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- Unrepresentable_Domain: Coordinates defining the features.
- Attribute:
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- Attribute_Label: AREA
- Attribute:
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- Attribute_Label: PERIMETER
- Attribute:
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- Attribute_Label: COUNTY_
- Attribute:
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- Attribute_Label: COUNTY_ID
- Attribute:
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- Attribute_Label: CO_NUMBER
- Attribute:
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- Attribute_Label: CO_FIPS
- Attribute:
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- Attribute_Label: ACRES_SF
- Attribute:
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- Attribute_Label: ACRES
- Attribute:
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- Attribute_Label: FIPS
- Attribute:
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- Attribute_Label: COUNTY
- Attribute:
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- Attribute_Label: ST
- Overview_Description:
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- Entity_and_Attribute_Overview:
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AREA: Area of county in square meters
PERIMETER: Length of county perimeters in meters
COUNTY_: Ineternal polygon identifier
COUNTY_ID: Sequential polygon identifier
CO_NUMBER: County number (1-99)
CO_NAME: County Names
CO_FIPS: County FIPS code (1-197)
ACRES_SF: Area of county in acres using the US survey foot standard
ACRES: Area of county in acres using the international metric (SI) s
- Distribution_Information:
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- Distributor:
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- Contact_Information:
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- Contact_Organization_Primary:
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- Contact_Organization: Iowa DNR - Iowa Geological Survey
- Contact_Person: Casey Kohrt
- Contact_Address:
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- Address_Type: mailing and physical address
- Address: 109 Trowbridge Hall
- City: Iowa City
- State_or_Province: Iowa
- Postal_Code: 52240
- Contact_Voice_Telephone: 319-335-1353
- Contact_TDD/TTY_Telephone: 319-
- Contact_Electronic_Mail_Address: gis_library@igsb.uiowa.edu
- Resource_Description: Downloadable Data
- Distribution_Liability:
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This digital, geographically referenced data set was developed by the Iowa Department of Natural Resources to carry out agency responsibilities related to management, protection, and development of Iowa's natural resources. It resides in the Natural Resources Geographic Information System library. Although efforts have been made to make it useful to the Department, the Department assumes no responsibility for errors in the information. Similarly the Department assumes no responsibility for the consequences of inappropriate uses or interpretations of the data made by anyone to whom this data has been made available. The Department bears no responsibility to inform users of any changes made to this data. Anyone using this data is advised that precision implied by the coverage may far exceed actual precision. Comments on this data are invited and the Department would appreciate that documented errors be brought to staff attention. The development of the coverages in the NRGIS Library represents a major investment of staff time and effort. As a professional responsibility, we expect that the Iowa DNR will receive proper credit when you utilize these GIS coverages and that the original documentation will remain with any redistribution of these coverages.
- Standard_Order_Process:
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- Digital_Form:
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- Digital_Transfer_Information:
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- Transfer_Size: 0.560
- Digital_Transfer_Option:
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- Online_Option:
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- Computer_Contact_Information:
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- Network_Address:
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- Network_Resource_Name:
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<ftp://ftp.igsb.uiowa.edu/gis_library/IA_state/Admin_Political_Boundary/county.zip>
- Metadata_Reference_Information:
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- Metadata_Date: 20031103
- Metadata_Contact:
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- Contact_Information:
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- Contact_Organization_Primary:
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- Contact_Organization: Iowa Department of Natural Resources - Iowa Geological Survey
- Contact_Person: Casey Kohrt
- Contact_Address:
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- Address_Type: mailing and physical address
- City: Iowa City
- State_or_Province: Iowa
- Postal_Code: 52240
- Contact_Voice_Telephone: 319-335-1353
- 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: none
- Metadata_Extensions:
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- Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>
- Profile_Name: ESRI Metadata Profile
Generated by mp version 2.7.33 on Mon Nov 03 11:51:48 2003