2005 Nebraska Land Use Patterns

Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Center for Advanced Land Management Information Technologies (CALMIT)
Publication_Date: 20070928
Title:
2005 Nebraska Land Use Patterns
Geospatial_Data_Presentation_Form: remote-sensing image
Description:
Abstract:
The raster land use/land cover data is a geo-referenced, thematic data layer produced using multi-date 2005 Landsat 5 Thematic Mapper satellite imagery. The satellite imagery used in the classification was collected between the dates of 06/13/2005 and 9/20/2005. The nominal scale is 1:100,000 with a ground resolution of 28.5 meters or 93.48 feet. There are 25 classes and crops are identified as either being irrigated or dry land. The overall accuracy for the classification was calculated at 80.43% with a KAPPA value of 0.7761. This project was part of a joint research project with the Nebraska Department of Natural Resources.
Purpose:
This land use/land cover data provides information necessary to supplement hydrologic modeling in Nebraska. 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 DOQQ's) to produce a hybrid digital file.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 20070928
Currentness_Reference:
publication date
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate:-104.180682
East_Bounding_Coordinate:-95.087660
North_Bounding_Coordinate:43.070686
South_Bounding_Coordinate: 39.903456
 
Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: crop cover
Theme_Keyword: classification
Theme_Keyword: agriculture
Theme_Keyword: crop identification
Theme_Keyword: land use/land cover
Theme_Keyword: Landsat
Place:
Place_Keyword: Nebraska
 
Temporal:
Temporal_Keyword: 2005
Access_Constraints: None
Use_Constraints:
There are no copyright restrictions with these datasets as the imagery is considered public domain and free to redistribute. However, CALMIT and NDNR would appreciate acknowledgment or credit for the usage of our land use/land cover data.

Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: James Merchant
Contact_Organization: Center for Advanced Land Management Information Technologies (CALMIT)
Contact_Address:
Address_Type: mailing address
Address:
3310 Holdrege
City: Lincoln
State_or_Province: NE
Postal_Code: 68583-0973
Country: USA
Contact_Voice_Telephone: (402) 472-7531
Contact_Facsimile_Telephone: (402) 472-4608
Contact_Electronic_Mail_Address: jmerchant1@unl.edu
Native_Data_Set_Environment:
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.1.0.722
Back to Top

Data_Quality_Information:
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: Landsat 5
Title:
LANDSAT TM Path 27 Row(s) 32
Publication_Information:
Publication_Place: Sioux Falls, South Dakota
Publisher: USGS EROS Data Center
Other_Citation_Details:
Image Acquisition Dates: 2005/08/09
Source_Information:
Source_Citation:
Citation_Information:
Originator: Landsat 5
Title:
LANDSAT TM Path 28 Row(s) 31 and 32
Publication_Information:
Publication_Place: Sioux Falls, South Dakota
Publisher: USGS EROS Data Center
Other_Citation_Details:
Image Acquisition Dates: 2005/06/13, 2005/09/01
Source_Information:
Source_Citation:
Citation_Information:
Originator: Landsat 5
Title:
LANDSAT TM Path 29 Row(s) 30, 31 and 32
Publication_Information:
Publication_Place: Sioux Falls, South Dakota
Publisher: USGS EROS Data Center
Other_Citation_Details:
Image Acquisition Dates: 2005/06/20, 2005/07/22, 2005/08/07, 2005/09/08
Source_Information:
Source_Citation:
Citation_Information:
Originator: Landsat 5
Title:
LANDSAT TM Path 30 Row(s) 30, 31 and 32
Publication_Information:
Publication_Place: Sioux Falls, South Dakota
Publisher: USGS EROS Data Center
Other_Citation_Details:
Image Acquisition Dates: 2005/06/27, 2005/08/30, 2005/09/15
Source_Information:
Source_Citation:
Citation_Information:
Originator: Landsat 5
Title:
LANDSAT TM Path 31, Row(s) 30, 31, and 32
Publication_Information:
Publication_Place: Sioux Falls, South Dakota
Publisher: USGS EROS Data Center
Other_Citation_Details:
Image Acquisition Dates: 2005/07/20, 2005/08/05, 2005/09/06
Source_Information:
Source_Citation:
Citation_Information:
Originator: Landsat 5
Title:
LANDSAT TM Path 32, Row(s) 31 and 30
Publication_Information:
Publication_Place: Sioux Falls, South Dakota
Publisher: USGS EROS Data Center
Other_Citation_Details:
Image Acquisition Dates: 2005/07/11, 2005/08/28
Source_Information:
Source_Citation:
Citation_Information:
Title:
LANDSAT TM Path 33, Row(s) 30, 31 and 32
Publication_Information:
Publication_Place: Sioux Falls, South Dakota
Publisher: USGS EROS Data Center
Other_Citation_Details:
Image Acquisition Dates: 2005/07/02, 2005/08/19, 2005/09/20
Source_Information:
Source_Citation:
Citation_Information:
Originator: USDA-FSA Aerial Photography Field Office
Publication_Date: 20050915
Title:
2005 NAIP Ortho Imagery
 
Process_Step:
Process_Description:
The raster land use/land cover data is a geo-referenced, thematic data layer produced using multi-date 2005 Landsat 5 Thematic Mapper satellite imagery. The satellite imagery used in the classification was collected between the dates of 06/13/2005 and 9/20/2005. The satellite imagery was obtained with radiometric and terrain correction. Cloud coverage dictated date selection to the greatest extent, although imagery were chosen to represent spring, summer, and fall growing conditions. The nominal scale is 1:100,000 with a ground resolution of 28.5 meters or 93.48 feet. 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. Many techniques were applied to compensate for mixed classes. Clouded areas were classified in a second stage, using an unsupervised classification with the remaining unclouded dates. Urban areas were defined using 2000 TIGER census data, 2003 and 2005 Farm Service Agency (FSA) Ortho Imagery. Field data for crops were obtained during the 2005 growing season from Natural Resources Districts across the state. 2003 and 2005 FSA Ortho Imagery were used to locate spectral signature for riparian and forested areas, roads, open water, and non agricultural features. Irrigation information was obtained from the Nebraska Department of Natural Resources, Public Power Districts, Nebraska Natural Resource Districts, and the 2001 and 1997 COHYST land use data. Center pivots were on-screen digitized using the 2005 Landsat TM data and the 2005 FSA Ortho Imagery. Once the land cover classification was completed, a 3x3 majority filter was applied to agricultural classes to minimize mixed pixels. There are 25 classes and crops identified as either irrigated or dry land. The overall accuracy for the classification was calculated at 80.43%. More information and data products are available at http://calmit.unl.edu/2005landuse/. This project was part of a joint research project with the Nebraska Department of Natural Resources.
Back to Top

Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Raster
Raster_Object_Information:
Raster_Object_Type:Grid Cell
Row_Count:11962
Column_Count:26018
Vertical_Count: 1
Back to Top

Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Grid_Coordinate_System:
Grid_Coordinate_System_Name: State Plane Coordinate System
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: 93.480000
Ordinate_Resolution: 93.480000
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
 
Back to Top

Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: Layer_1
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 associated with each class
Attribute:
Attribute_Label: Class_names
Attribute_Definition:
Class name descriptions
Raster Attribute Values and Definitions:

1 Irrigated Corn
2 Irrigated Sugar Beets
3 Irrigated Soybeans
4 Irrigated Sorghum (Milo, Sudan)
5 Irrigated Dry Edible Beans
6 Irrigated Potatoes
7 Irrigated Alfalfa
8 Irrigated Small Grains
9 Range, Pasture, Grass
10 Urban Land
11 Open Water
12 Riparian Forest and Woodlands
13 Wetlands
14 Other Agricultural Land
15 Irrigated Sunflower
16 Summer Fallow
17 Roads
18 Dryland Corn
19 Dryland Soybeans
20 Dryland Sorghum
21 Dryland Dry Edible Beans
22 Dryland Alfalfa
23 Dryland Small Grains
24 Dryland Sunflower
25 Barren
Back to Top

Metadata_Reference_Information:
Metadata_Date: 20070928
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Center for Advanced Land Management Information Technologies (CALMIT)
Contact_Person: James Merchant
Contact_Address:
Address_Type: mailing address
Address:
3310 Holdrege
City: Lincoln
State_or_Province: NE
Postal_Code: 68583-0973
Country: USA
Contact_Voice_Telephone: (402) 472-7531
Contact_Facsimile_Telephone: (402) 472-4608
Contact_Electronic_Mail_Address: jmerchant1@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
Back to Top