Irr_comp_82_01

Metadata:

Identification_Information:

Citation:

Citation_Information:

Originator: Center for Advanced Land Management Information Technologies (CALMIT).
Publication_Date: 20040115
Title: 1982, 1997 and 2001 Irrigation Estimates and Comparisons for The Cooperative Hydrology Study in the Central Platte River Basin (COHYST)
Geospatial_Data_Presentation_Form: raster digital data: Online_Linkage: http://www.calmit.unl.edu/cohyst

Description:

Abstract: This raster data layer provides an estimate and comparison of 1983, 1997 and 2001 irrigated areas for the COHYST Study area within the Nebraska Boundary.
Purpose: Identifying irrigated areas within the Central Platte River Basin provides important information necessary to supplement the hydrologic modeling in the study area. Irrigation data serve a variety of purposes, from water resources planning to land use planning. This data could also be used for watershed analysis and other natural resource management activities.

Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 20040115

Currentness_Reference: publication date

Status:

Progress: Complete
Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -104.180907 East_Bounding_Coordinate: -95.087552 North_Bounding_Coordinate: 43.070572 South_Bounding_Coordinate: 39.903600

Keywords:

Theme:

Theme_Keyword_Thesaurus: None
Theme_Keyword: Irrigated Agricultural Areas

Place:

Place_Keyword_Thesaurus: None
Place_Keyword: Central Platte River Basin
Place_Keyword: Nebraska

Stratum:

Stratum_Keyword_Thesaurus: None

Temporal:

Temporal_Keyword_Thesaurus: None
Temporal_Keyword: Growing Season 1982 Temporal_Keyword: Growing Season 1997 Temporal_Keyword: Growing Season 2001

Access_Constraints: None

Use_Constraints: None

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Patti Dappen
Contact_Organization: Center For Advanced Land Management Information Technologies (CALMIT)

Contact_Position: GIS/Remote Sensing Specialist

Contact_Address:

Address_Type: mailing address
Address: 113 Nebraska Hall
Address: University of Nebraska - Lincoln
City: Lincoln
State_or_Province: NE
Postal_Code: 68588-0517

Contact_Voice_Telephone: (402) 472-6159

Contact_Facsimile_Telephone: (402) 472-4608

Contact_Electronic_Mail_Address: pdappen@calmit.unl.edu

Native_Data_Set_Environment:

Microsoft Windows 2000 Version 5.1 (Build 2600) Service Pack 1; ESRI ArcCatalog 8.3.0.800

Data_Quality_Information:

Lineage:

Source_Information: Source_Citation: Citation_Information: Originator: CALMIT Title: Delineation of 1982 Land Use Patterns for the Cooperative Hydrology Study in the Central Platte River Basin Geospatial_Data_Presentation_Form: raster thematic data Publication_Information: Publication_Place: Lincoln, NE Publisher: CALMIT, University of Nebraska - Lincoln Online_Linkage: http://www.calmit.unl.edu/cohyst/ Source_Citation: Citation_Information: Originator: CALMIT Title: 1982 center pivot irrigated areas delineated for the Cooperative Hydrology Study in the Central Platte River Basin Geospatial_Data_Presentation_Form: vector polygon data Publication_Information: Publication_Place: Lincoln, NE Publisher: CALMIT, University of Nebraska - Lincoln Online_Linkage: http://www.calmit.unl.edu/cohyst/ Source_Citation: Citation_Information: Originator: CALMIT Title: 1982 other irrigated areas (non center pivot) delineated for the Cooperative Hydrology Study in the Central Platte River Basin Geospatial_Data_Presentation_Form: vector polygon data Publication_Information: Publication_Place: Lincoln, NE Publisher: CALMIT, University of Nebraska - Lincoln Online_Linkage: http://www.calmit.unl.edu/cohyst/ Source_Citation: Citation_Information: Originator: CALMIT Title: Delineation of 1997 Land Use Patterns for the Cooperative Hydrology Study in the Central Platte River Basin Geospatial_Data_Presentation_Form: raster thematic data Publication_Information: Publication_Place: Lincoln, NE Publisher: CALMIT, University of Nebraska - Lincoln Online_Linkage: http://www.calmit.unl.edu/cohyst/ Source_Citation: Citation_Information: Originator: CALMIT Title: 1997 center pivot irrigated areas delineated for the Cooperative Hydrology Study in the Central Platte River Basin Geospatial_Data_Presentation_Form: vector polygon data Publication_Information: Publication_Place: Lincoln, NE Publisher: CALMIT, University of Nebraska - Lincoln Online_Linkage: http://www.calmit.unl.edu/cohyst/ Source_Citation: Citation_Information: Originator: CALMIT Title: 1997 other irrigated areas (non center pivot) delineated for the Cooperative Hydrology Study in the Central Platte River Basin Geospatial_Data_Presentation_Form: vector polygon data Publication_Information: Publication_Place: Lincoln, NE Publisher: CALMIT, University of Nebraska - Lincoln Online_Linkage: http://www.calmit.unl.edu/cohyst/ Source_Citation: Citation_Information: Originator: CALMIT Title: Delineation of 2001 Land Use Patterns for the Cooperative Hydrology Study in the Central Platte River Basin Geospatial_Data_Presentation_Form: raster thematic data Publication_Information: Publication_Place: Lincoln, NE Publisher: CALMIT, University of Nebraska - Lincoln Online_Linkage: http://www.calmit.unl.edu/cohyst/ Source_Citation: Citation_Information: Originator: CALMIT Title: 2001 center pivot irrigated areas delineated for the Cooperative Hydrology Study in the Central Platte River Basin Geospatial_Data_Presentation_Form: vector polygon data Publication_Information: Publication_Place: Lincoln, NE Publisher: CALMIT, University of Nebraska - Lincoln Online_Linkage: http://www.calmit.unl.edu/cohyst/ Source_Citation: Citation_Information: Originator: CALMIT Title: 2001 other irrigated areas (non center pivot) delineated for the Cooperative Hydrology Study in the Central Platte River Basin Geospatial_Data_Presentation_Form: vector polygon data Publication_Information: Publication_Place: Lincoln, NE Publisher: CALMIT, University of Nebraska - Lincoln Online_Linkage: http://www.calmit.unl.edu/cohyst/

Process_Step:

Process_Description: Agricultural areas classified as irrigated were queried and subset from the 1983, 1997, and 2001 COHYST land cover classifications. Irrigated areas from 1982 were re coded and given a value of 2, irrigated areas from 1997 were re coded and given a value of 5, and areas found to be irrigated in 2001 were re coded and given a value of 10. These three separate recoded raster files were added together in Arc GRID module. The resulting raster grid has seven classes 2, 5, 7, 10, 12, 15, and 17. Cells with a value of 2 represent areas irrigated only in 1982, cells with a value of 5 represent areas irrigated only in 1997, cells with a value of 7 represent areas irrigated in 1982 and 1997, cells with a value of 10 represent areas irrigated only in 2001, cells with a value of 12 represent areas irrigated in 1982 and 2001, cells with a value of 15 represent areas irrigated in 1997 and 2001, and cells with a value of 17 represent areas irrigated in 1982, 1997, and 2001.

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Raster

Raster_Object_Information:

Raster_Object_Type: Grid Cell Row_Count: 11961 Column_Count: 26019 Vertical_Count: 1

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: 2600

Lambert_Conformal_Conic:

Standard_Parallel: 40.000000
Standard_Parallel: 43.000000
Longitude_of_Central_Meridian: -100.000000
Latitude_of_Projection_Origin: 39.833333
False_Easting: 1640416.666667
False_Northing: 0.000000

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair

Coordinate_Representation:

Abscissa_Resolution: 0.004096
Ordinate_Resolution: 0.004096

Planar_Distance_Units: survey feet

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

Entity_and_Attribute_Information: Detailed_Description: Detailed_Description: Entity_Type: Entity_Type_Label: irr_comp_82_01 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: Value Attribute_Definition: Irrigation Comparison Class Attribute: Attribute_Label: Count Attribute_Definition: Number of cells associated with each value class Attribute: Attribute_Label: Type Attribute_Definition: Irrigation class descriptions Attribute: Attribute_Label: Acres Attribute_Definition: Acreage totals for each irrigation class

Distribution_Information:

Resource_Description: Downloadable Data

Online_Linkage: http://www.calmit.unl.edu/cohyst

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Transfer_Size: 14.7

Metadata_Reference_Information:

Metadata_Date: 20030825

Metadata_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Patti Dappen
Contact_Organization: Center for Advanced Land Management Information Technologies

Contact_Position: GIS/Remote Sensing Specialist

Contact_Address:

Address_Type: mailing address
Address: 113 Nebraska Hall, University of Nebraska - Lincoln
City: Lincoln
State_or_Province: NE
Postal_Code: 68588-0517
Country: USA

Contact_Voice_Telephone: (402) 472-6159

Contact_Facsimile_Telephone: (402) 472- 4608

Contact_Electronic_Mail_Address: pdappen@calmit.unl.edu

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Time_Convention: local time

Metadata_Extensions:

Online_Linkage: http://www.esri.com/metadata/esriprof80.html
Profile_Name: ESRI Metadata Profile