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:
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 Orthophoto Quarter Quadrangles (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 calculated at 74.07%.
Purpose:
This land use/land cover data provides information necessary to supplement the hydrologic modeling in the study area. The land use/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
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: Brian Wardlow
Contact Organization: Center For Advanced Land Management Information Technologies (CALMIT)
Contact Position: Director
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: 402.472.6729
Contact Electronic Mail Address:bwardlow2@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: 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:COHYST Data
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:COHYST Data
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 Land use 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:DNR Databank
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:https://eros.usgs.gov/usa
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:https://eros.usgs.gov/usa
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:https://eros.usgs.gov/usa
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:https://eros.usgs.gov/usa
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:https://eros.usgs.gov/usa
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%.
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
