Nebraska Section Corner Polygons
Metadata:
- Identification_Information:
Citation:
Citation_Information:
Originator:
Nebraska Department of Natural Resources (NRC)
Publication_Date: 199511
Title: Nebraska Section Corner Polygons
Geospatial_Data_Presentation_Form: map
Publication_Information:
Publication_Place: Lincoln, Nebraska - United States
Publisher: Nebraska Department of Natural Resources
Online_Linkage:http://www.dnr.state.ne.us/databank/spat.html
Description:
Abstract:
The NRC digitized the SE corner of each section in Nebraska and identified the corner by that section number. Other corners were also digitized as necessary. Using these points, a polygon was constructed to represent the four corners of each section. They have been integrated into the NRC's computer data systems so they are available to all with the facilities to access the Natural Resources Data Bank.
Purpose:
Section 2-15,100 of the Nebraska statutes gives the NRC responsibility for conducting the State Water Planning and Review Process. The statutory purpose of the planning process is to coordinate and direct the planning efforts of the state agencies and the university divisions with responsibilities and interest in the water resources field. The statutes add that the process shall be designed to, amon other things, develop and maintain the data, information, and analytical capabilities necessary to provide state agencies and other water interests with a support basse for water planning and management activities. Location information is an important part of the water planning and management activities for the information support base.
Supplemental_Information:
This data set was re-projected to Stateplane, NAD83, fipszone 2600 for use in the Platte River
Cooperative Hydrology Study using the ARCINFO PROJECT command.
This coverage is not intended to precisely define each section in the State. It is only intended to provide the general location and shape of the sections.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 199511
Currentness_Reference: ground condition
Status:
Progress: complete
Maintenance_and_Update_Frequency: Only if errors are discovered
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -104.175
East_Bounding_Coordinate: -95.6
North_Bounding_Coordinate: 43
South_Bounding_Coordinate: 40
Keywords:
Theme:
Theme_Keyword_Thesaurus: none
Theme_Keyword: section corners
Theme_Keyword: legal description
Theme_Keyword: township
Theme_Keyword: range
Theme_Keyword: section
Theme_Keyword: township corners
Theme_Keyword: section polygons
Place:
Place_Keyword_Thesaurus: none
Place_Keyword: US
Place_Keyword: Nebraska
Place_Keyword: NE
Access_Constraints: none
Use_Constraints: None, acknowledgement of the Nebraska Department of Natural Resources.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Nebraska Department of Natural Resources
Contact_Address:
Address_Type: mailing and physical address
Address: 301 Centennial Mall South, P.O. Box 94676
City: Lincoln
State_or_Province: NE
Postal_Code: 68509-4676
Country: (optional):USA
Contact_Voice_Telephone: (402) 471-2081
Contact_Facsimile_Telephone: (optional):(402) 471-3132
Contact_Electronic_Mail_Address:
(optional): rkern@dnr.state.ne.us
Hours_of_Service: (optional):8:00 - 5:00 Central Time
- Data_Quality_Information:
- Attribute_Accuracy:
- Attribute_Accuracy_Report:
- Most of the original data was digitized from 7 1/2 quad maps where they were available. This digitized information was processed on a PC with a FORTRAN program and then plotted at 100% scale and overlayed on the original to verify the accuracy. Many checks were programmed into the FORTRAN program to help correct or identify inaccuracies. Other error checking and correcting was accomplished using visual inspection, Paradox 3.0 and Arc/Info 6.0 and later Arc/Info 7.0.
- Logical_Consistency_Report:
- The section corner codes were checked against a list of valid codes through a FORTRAN program on a PC. Additional checks were made on an Arc/Info workstation. All codes were valid. Maps were generated and a 100% visual check was approved. All data was checked several times through several error checking programs in Arc/Info 6.0 and 7.0 to determine if there were any section corners left unattributed or corners with wrong attributes.
- Completeness_Report:
- In most cases the information was digitized from 7 1/2 USGS quadrangles maps. In areas where they were not complete or we did not have them, the 15-minute series was used.
- Positional_Accuracy:
- Horizontal_Positional_Accuracy:
- Horizontal_Positional_Accuracy_Report:
medium to low - this data does not meet any standards
- Vertical_Positional_Accuracy:
- Vertical_Positional_Accuracy_Report:
medium to low - this data does not meet any standards
- Lineage:
- Source_Information:
- Source_Citation:
- Citation_Information:
- Originator:
- Nebraska Department of Natural Resources (NRC)
- Publication_Date:
199511
- Title:
Nebraska Section Corner Polygons
- Geospatial_Data_Presentation_Form:
map
- Publication_Information:
- Publication_Place:
Lincoln, Nebraska - United States
- Publisher:
Nebraska Department of Natural Resources
- Online_Linkage:
(optional):http://www.dnr.state.ne.us
- Type_of_Source_Media:
"paper"
- Source_Time_Period_of_Content:
- Time_Period_Information:
- Range_of_Dates/Times:
- Beginning_Date:
1956
- Ending_Date:
1990
- Source_Currentness_Reference:
Ground Condition
- Source_Citation_Abbreviation:
none
- Source_Contribution:
spatial and attribute information
- Process_Step:
- Process_Description:
- The goal was to digitize enough about each section so that the general shape and location of each section could be defined. 7 1/2-minute quads were used when they were available. The quads for an area of Cherry, Box Butte, and Sheridan counties were not yet complete for this process so 12 15-minute quads were substituted for 48 7 1/2-minute quads. The south east corner of each quad was digitized and that was enough to locate and define most of the sections. For instance, the SE corner of section 6 is also the SW corner of section 5, the NW corner of section 8 and the NE corner for section 7. However, this is not usually the case when the border of the section is a standard parallel. In these cases, the NE corner of sections 1-6 was also digitized and labeled as 41-46 to differentiate from the SE corner labels of 1-6. These are referred to as correction corners.
- Only section corners that could be specifically located on the 7 1/2 minute map were digitized and labeled 1-36 or 41-46. Some of the corners (such as in stream beds) had to be estimated since they were not identified on the maps. 50 was added to the label to indicate that it was an estimated corner. The range of estimated standard corners was 51-86 and 91-96 for the estimated correction corners.
- Process_Date:
199511
- Process_Contact:
- Contact_Information:
- Contact_Organization_Primary:
- Contact_Organization:
Nebraska Department of Natural Resources
- Contact_Address:
- Address_Type:
mailing and physical address
- Address:
301 Centennial Mall South, P.O. Box 94676
- City:
Lincoln
- State_or_Province:
Nebraska
- Postal_Code:
68509-4676
- Country:
(optional):USA
- Contact_Voice_Telephone:
(402) 471-2081
- Contact_Facsimile_Telephone:
(optional):(402) 471-3132
- Contact_Electronic_Mail_Address:
rkern@dnr.state.ne.us
- Hours_of_Service:
(optional):8:00 - 5:00 Central Time
- Spatial_Data_Organization_Information:
- Direct_Spatial_Reference_Method:
Vector
- Spatial_Reference_Information:
- Horizontal_Coordinate_System_Definition:
- Planar:
- Grid_Coordinate_System:
- Grid_Coordinate_System_Name:
Universal Transverse Mercator
- Universal_Transverse_Mercator:
- UTM_Zone_Number:
14
- Transverse_Mercator:
- Scale_Factor_at_Central_Meridian:
.9996
- Longitude_of_Central_Meridian:
-99.0
- Latitude_of_Projection_Origin:
0.0
- False_Easting:
500,000.0
- False_Northing:
0.0
- Planar_Coordinate_Information:
- Planar_Coordinate_Encoding_Method:
coordinate pair
- Coordinate_Representation:
- Abscissa_Resolution:
120.7008
- Ordinate_Resolution:
150.876
- Planar_Distance_Units:
meters
- Geodetic_Model:
- Horizontal_Datum_Name:
North American Datum of 1983
- Ellipsoid_Name:
GRS 1980
- Semi-major_Axis:
6,378,206.4
- Denominator_of_Flattening_Ratio:
294.9787
- Entity_and_Attribute_Information:
- Detailed_Description:
- Entity_Type:
- Entity_Type_Label:
SCTCORPOL.PAT
- Entity_Type_Definition:
- Section corner (.pat) coverage contains all the spatial data. The .pat file identifies the codes representing the township, range, direction, and section.
- Entity_Type_Definition_Source:
Nebraska Department of Natural Resources
- Attribute:
- Attribute_Label:
SECTION-ID
- Attribute_Definition:
7-digit NRC section corner identifier
- Attribute_Definition_Source:
Nebraska Department of Natural Resources
- Attribute_Domain_Values:
- Enumerated_Domain:
- Enumerated_Domain_Value:
- A unique seven-digit number (SCTCOR.PTS-ID) was assigned to identify each section corner.
- Enumerated_Domain_Value_Definition:
- Enumerated_Domain_Value_Definition_Source:
Nebraska Department of Natural Resources
- Attribute:
- Attribute_Label:
TOWNSHIP
- Attribute_Definition:
2-digit number representing the township
- Attribute_Definition_Source:
U.S. Bureau of Land Management
- Attribute_Domain_Values:
- The values range from 1 to 35 and represent township rows from the south border of Nebraska to the north border.
- Attribute:
- Attribute_Label:
RANGE
- Attribute_Definition:
2-digit number representing the range
- Attribute_Definition_Source:
U.S. Bureau of Land Management
- Attribute_Domain_Values:
- The values range from 1 to 59 and represent range columns from 1 to 19 east of the 6th principal meridian and from 1 to 59 west of the 6th principal meridian.
- Attribute:
- Attribute_Label:
DIR
- Attribute_Definition:
1-digit character representing the range
- Attribute_Definition_Source:
U.S. Bureau of Land Management
- Attribute_Domain_Values:
- E = east W = west
- Attribute:
- Attribute_Label:
SECTION
- Attribute_Definition:
2-digit number representing the section
- Attribute_Definition_Source:
U.S. Bureau of Land Management
- Attribute_Domain_Values:
- 1-36 = standard sections (south east corner of section) 41-46 = correction sections (north east corner of section) 51-86 = estimated standard sections (south east corner of section) 91-96 = estimated correction sections (north east corner of section)
- Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Nebraska Department of Natural Resources
Contact_Position: (optional):
Contact_Address:
Address_Type: mailing and physical address
Address: 301 Centennial Mall South, P.O. Box 94676
City: Lincoln
State_or_Province: Nebraska
Postal_Code: 68509-4676
Country: (optional):USA
Contact_Voice_Telephone: (402) 471-2081
Contact_Facsimile_Telephone: (optional):(402) 471-3132
Contact_Electronic_Mail_Address: rkern@dnr.state.ne.us
Hours_of_Service: (optional):8:00 - 5:00 Central Time
Resource_Description: Nebraska Section Corner Polygons
Distribution_Liability: None
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: ARC (ARC/INFO EXPORT)
Format_Version_Number: ARC/INFO 7.0
Format_Specification:
(optional): This data is in single precision format. After the data was put in ARC/INFO Export format, we ran Unix InfoZip which is compatible with pkzip and WinZip. If you would like a different format or compression, try NRC Overnight Batch Processing under Spatial/GIS Databases or upon request we will export it to any other format you can use.
Format_Information_Content: Spatial and attribute information
File_Decompression_Technique:
First we exported the coverage using Arc/Info 7.2.1, then we ran Unix InfoZip, which is compatible with pkzip and winzip. If you would like a different format or compression, try NRC Overnight Batch Processing under Spatial/GIS Databases or upon request we will export the data in a format you can use.
Transfer_Size: 19M
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: http://www.dnr.state.ne.us
Access_Instructions:
(optional): Access the data through our web site by url http://www.dnr.state.ne.us. Enter the Spatial/GIS Databases Option, Select Section Corner Points option, Select Section Corner Points Database (Arc Export Format)
Offline_Option:
Offline_Media: 8mm cartridge tape
Recording_Capacity:
Recording_Density: 2
Recording_Density: 4
Recording_Density_Units: gigabytes
Recording_Format: tar
Offline_Option:
Offline_Media: TK50 tape
Recording_Capacity:
Recording_Density: 19
Recording_Density_Units: megabytes
Recording_Format: tar
Fees:
The online copy of the ARC Export data set may be retrieved via web at no charge. For delivery of digital data in other formats there may be an additional charge plus the cost of the media.
Ordering_Instructions:
(optional): You can either order by leaving a message over the web site or call Nebraska Department of Natural Resources.
- Metadata_Reference_Information:
Metadata_Date: 199604
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Nebraska Department of Natural Resources
Contact_Person: (optional): Rich Rkern
Contact_Address:
Address_Type: mailing and physical address
Address: 301 Centennial Mall South, P.O. Box 94676
City: Lincoln
State_or_Province: Nebraska
Postal_Code: 68509-4676
Country: (optional):USA
Contact_Voice_Telephone: (402) 471-2081
Contact_Facsimile_Telephone: (optional):(402) 471-3132
Contact_Electronic_Mail_Address: rkern@dnr.state.ne.us
Hours_of_Service: (optional):8:00 - 5:00 Central Time
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: 19950324