landcover_1982

Metadata:
Identification_Information:
Citation:
Citation_Information:
Originator: Center for Advanced Land Management Information Technologies (CALMIT).
Publication_Date: 20040115
Title: Delineation of 1982 Land Use Patterns for the Cooperative Hydrology Study in the Central Platte River Basin
Geospatial_Data_Presentation_Form: raster digital data
Online_Linkage: http://www.calmit.unl.edu/cohyst
 
Description:
Abstract:
The raster land use/land cover data is a digital product of a supervised classification derived from multi-date 1982 Landsat 3 Multi-Spectral Scanner (MSS) satellite imagery.  Field data for crops were obtained from the the Natural Resources Conservation Service (NRCS).  Urban areas were identified using 1:100,000 scale Digital Raster Graphics (DRG) with a source date of 1985. Other information were gathered using 1993 Digital Orothophoto Quarter Quadranges (DOQQ's). Irrigation information was obtained from the Nebraska Department of Natural Resources, the Natural Resources Conservation Service,Public Power Districts, and Natural Resource Districts.  Center pivots were on-screen digitized using multi-date Landsat 3 MSS data.  The cell size for the data is 187 feet and there are 21 different land use/land cover classes. The overall accuracy of the land cover classification was calcuated at 74.07%.
Purpose:
 
This land use/land cover data provides information necessary to supplement the hydrologic modeling in the study area. The landuse/land cover data can be used as a digital layer in various studies.  It is useful as a background layer in a GIS, and can also be merged with other digital data (ie DEM's or DOQ's) to  produce a hybrid digital file.
 
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: -104.253845
East_Bounding_Coordinate: -97.292228
North_Bounding_Coordinate: 42.584082
South_Bounding_Coordinate: 39.943929
Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: Land use/ Land cover
Theme_Keyword: Crop cover
Theme_Keyword: Classification
Theme_Keyword: Agriculture
Theme_Keyword: Crop Identification
Theme_Keyword: Landsat
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
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: Center for Advanced Land Management Information Technologies (CALMIT).
Publication_Date: 20040115
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 digital data
Publication_Information:
Publication_Place: Lincoln, NE
Publisher: CALMIT
Online_Linkage: http://www.calmit.unl.edu/cohyst
 
Source_Citation:
Citation_Information:
Originator: Center for Advanced Land Management Information Technologies (CALMIT).
Publication_Date: 20040115
Title: 1982 center pivot irrigated areas delineated for the Cooperative Hydrology Study in the Central Platte River Basin
Geospatial_Data_Presentation_Form: vector digital data
Publication_Information:
Publication_Place: Lincoln, NE
Publisher: CALMIT
Online_Linkage: http://www.calmit.unl.edu/cohyst
 
Source_Citation:
Citation_Information:
Originator:
Natural Resources Conservation Service(DNRS) of the United States Department of Agriculture(USDA) in cooperation with Nebraska Department of Natural Resources(DNR)
Title:
Digitized Landuse by County
Geospatial_Data_Presentation_Form: map
Publication_Information:
Publication_Place: Lincoln, NE
Publisher: Nebraska Department of Natural Resources and Natural Resources Conservation Service
Publication Date: 1983
Online_Linkage: http://www.nrc.state.ne.us/databank/spat.html
 
 
Source_Citation:
Citation_Information:
Originator: Landsat 3
Title:
Landsat 3 MSS Path 32, Rows 31 and 32
Geospatial_Data_Presentation_Form: remote-sensing image
Publication_Information:
Publication_Place: Sioux Falls, SD
Publisher: EROS Data Center, U.S. Geological Survey
Online_Linkage: http://edc.usgs.gov
Source_Citation:
Citation_Information:
Originator: Landsat 3
Title:
Landsat 3 MSS Path 33, Rows 31 and 32
Geospatial_Data_Presentation_Form: remote-sensing image
Publication_Information:
Publication_Place: Sioux Falls, SD
Publisher: EROS Data Center, U.S. Geological Survey
Online_Linkage: http://edc.usgs.gov
 
Source_Citation:
Citation_Information:
Originator: Landsat 3
Title:
Landsat 3 MSS Path 34, Rows 31 and 32
Geospatial_Data_Presentation_Form: remote-sensing image
Publication_Information:
Publication_Place: Sioux Falls, SD
Publisher: EROS Data Center, U.S. Geological Survey
Online_Linkage: http://edc.usgs.gov
 
Source_Citation:
Citation_Information:
Originator: Landsat 3
Title:
Landsat 3 MSS Path 35 Row 31
Geospatial_Data_Presentation_Form: remote-sensing image
Publication_Information:
Publication_Place: Sioux Falls, SD
Publisher: EROS Data Center, U.S. Geological Survey
Online_Linkage: http://edc.usgs.gov
 
Source_Citation:
Citation_Information:
Originator: Landsat 3
Title:
Landsat 3 MSS Path 36, Rows 30 and 31
Geospatial_Data_Presentation_Form: remote-sensing image
Publication_Information:
Publication_Place: Sioux Falls, SD
Publisher: EROS Data Center, U.S. Geological Survey
Online_Linkage: http://edc.usgs.gov
 
 
 
Process_Step:
Process_Description:
Multi-date Landsat 3 Multi-Spectral Scanner(MSS) satellite imagery were used to generate this land use classification for 1982. Cloud coverage dictated date selection to the greatest extent, although imagery was chosen to represent spring, summer, and fall growing conditions. Before the supervised classification was run, clouded and urban areas were removed from the imagery. Urban areas were defined using 1985 Digital Raster Graphics. Clouded areas were classified in a second stage, using an unsupervised classification with the remaining unclouded dates. Field data for crops were obtained from crop data provided by Natural Resources Conservation Service (NRCS). Spectral signatures for cropland were collected by identifying homogeneous field areas identified using the NRCS data. 1993 Digital Orthophoto Quarter Quadrangles were used to locate signature areas for riparian and forested areas. Multiple spectral signatures for each class were extracted and evaluated for continuity. Unrepresentative signatures were deleted. The remaining signatures were then used in a supervised classification on the multi-date imagery. After the classification algorithm was run, classes were evaluated for accuracy. A 'cluster busting' technique was applied to compensate for mixed classes. Irrigation information was obtained from the Nebraska Department of Natural Resources, NRCS, Public Power Districts, and Nebraska Natural Resource Districts. Center pivots were on-screen digitized using the 1982 Landsat 3 MSS satellite imagery. Once the land cover classification was complete, a 3X3 majority filter was applied to agricultural classes to minimize the remaining mixed pixels. Major roads identified in the 1997 COHYST land cover classification were overlaid onto the final 1982 classification. Due to the larger cell size for MSS imagery, roads were not as easily identified. The cell size for the data is 187 feet and there are 21 different land use/land cover classes. The overall accuracy of the land cover classification was calculated at 74.07%.
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Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Raster
Raster_Object_Information:
Raster_Object_Type: Grid Cell
Row_Count: 6857
Column_Count: 11208
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:
Entity_Type:
Entity_Type_Label: landcover_1982
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: Land cover class
 
Attribute:
Attribute_Label: Count
Attribute_Definition: Number of cells assoicated with each value class
Attribute:
Attribute_Label: Landcover
Attribute_Definition: Landcover description assoicated with each value class
 
Raster Attribute
Values and Definitions:

1 Irrigated Corn
2 Irrigated Sugar Beets
3 Irrigated Soybeans
4 Irrigated Sorghum (Milo, Sudan)
7 Irrigated Alfalfa
8 Irrigated Small Grains
9 Range, Pasture, Grass
10 Urban Land
11 Open Water
12 Riparian Forest and Woodlands
13 Wetlands
15 Irrigated Other Agricultural Crops (Potatoes, Sunflowers, Dry Edible Beans)
16 Summer Fallow
17 Roads
18 Dryland Corn
19 Dryland Soybeans
20 Dryland Sorghum
21 Dryland Other Agricultural Crops (Sunflowers, Dry Edible Beans)
22 Dryland Alfalfa
23 Dryland Small Grains
25 Barren
 
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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: Dependant on data format
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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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