Irr_comp_97_01

Metadata:
Identification_Information:
Citation:
Citation_Information:
Originator: Center for Advanced Land Management Information Technologies (CALMIT).
Publication_Date: 20030829
Title: 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 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: 20030829
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 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
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Data_Quality_Information:
Lineage:
Source_Information:
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 1997 and 2001 COHYST land cover classifications.  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 two separate re coded raster files were added together in Arc GRID module.  The resulting raster grid had three classes 5, 10, and 15. Cells with a value of 5 indicated areas that were found to be irrigated in 1997 and not in 2001.  Cells with a value of 10 were those areas identified as being irrigated in 2001 and not in 1997.  Cells with a value of 15 were those areas found to be irrigated both in 1997 and 2001.  The final raster layer was clipped to the COHYST Study area within the Nebraska boundary. All irrigated areas and comparisons are provided as estimates.
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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
 
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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
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Entity_and_Attribute_Information:
Detailed_Description:
Detailed_Description:
Entity_Type:
Entity_Type_Label: irr_comp_97_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
 
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Distribution_Information:
Resource_Description: Downloadable Data
Online_Linkage: http://www.calmit.unl.edu/cohyst
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Transfer_Size: 11.334
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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
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