Information used to reference the data.
Title: Land Use & Land Cover, 2009, Idaho portion of the Bear River Basin
Originators: Idaho Department of Water Resources
Publisher: Margie Wilkins and Michael Verdun (2009 version).
Publication place: Idaho Department of Water Resources
Publication date: 20130715
Data type: vector digital data
Other citation details:
Original dataset: bear_lu.shp Published June 2, 1992 Bill Kramber and Mike Verdun (1976/1992 version)
A characterization of the data, including its intended use and limitations.
Abstract:
Land use and land cover developed for the Idaho portion of the Bear River Basin as part of the Bear River Compact. The Bear River Compact was established in 1958 to determine how Idaho, Utah, and Wyoming would distribute and use water from the Bear River. For more details see the following: Bear River Commission, "Bear River Compact As Amended and Bylaws of Bear River Commission", April 1990. Kramber, W.J., H. Anderson, M. Verdun, G. Austiguy, and B. Ondrechen, "Idaho's system for monitoring water use in the Bear River Basin", Geo Info Systems, May 1993, pp. 8-52.
Purpose:
For applications requiring land use and land cover data.
Supplemental information:
Procedures Used for 1976/1992 determinations:
1. USGS 1:24,000-scale orthophotoquads (OQs) used as base maps.
2. 1976 1:120,000-scale color infrared (CIR) aerial photographs were used to develop the land use and land cover.
3. Mylar overlays were taped to the OQs and land use and land cover polygons were drawn on the mylar while interpreting the 1:120,000-scale CIR aerial photographs.
4. Land use changes between 1976 and 1990, for the Central Division, were interpreted from USDA ASCS 35mm color aerial slides collected the summer of 1990. These slides were projected onto the OQs and changes were drawn on the mylar overlays.
5. The land use and land cover interpretation was verified with the staff and/or directors of the USDA ASCS offices for Bear Lake, Franklin, Oneida, and Caribou counties. Plots were produced to verify the land use and land cover mapping both by the USDA ASCS field offices and by Idaho Department of Water Resources analysts. The district 11 watermaster also reviewed the maps. Areas of uncertainty were visited in the field.
6. Land use and land cover boundaries were manually digitized from the mylar overlays. Preliminary maps were plotted and checked for accuracy. Edits were made and final plots were produced at 1:100,000-scale.
7. Attributes for landuse: land_type description
1:water
2:wetlands/naturally subirrigated pasture and hay
3:irrigated cropland
4:nonirrigated cropland
5:urban
6:other
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Procedures Used for 2009 determinations:
1. Common Land Unit (CLU) polygons of individual fields digitized by the Farm Service Agency (FSA) in 2005 were used as a starting point in line geometry edits. 1-meter NAIP imagery was used as the primary source of background imagery for line editing. NAIP imagery from 2004 (1-meter, true color), 2006 (2-meter, true color), and 2009 (1-meter, color infrared and true color) were also available.
2. The following attributes were added:
descript_2009
land_type_2009
descript_1976
land_type_1976
change_2009
3. 1976/1992 Landuse attributes (descript_1976 and land_type_1976) were initially assigned by overlaying a rasterized version of the 1976/1992 Bear River Basin landuse classification with the CLU polygons. The polygons were assigned a land_type value based on the majority zonal statistic of the rasterized 1976/1992 land classification. 2009 Landuse attributes (descript_2009 and land_type_2009) were set equal to 1976/1992 values initially, reviewed section by section, and edited as needed by photointerpretation of 2009 NAIP and 2009 Landsat imagery to indicate changes in landuse.
4. Supporting datasets include: NDVI created from 2009 Landsat imagery; National Agricultural Statistics Service (NASS) 2009 Idaho Cropland Data Layer (56-meter resolution); the 2005 North American Land Cover Database produced as a joint project by Canada, The United States, and Mexico (250-meter resolution); the 1992 National Land Cover Dataset (NLCD92) prepared by the USGS (30-meter resolution); National Hydrologic Database flowlines; black and white Digital Ortho Quarter Quads (DOQQs).
Dataset credit:
William J. Kramber, Hal Anderson, and Michael Verdun of the Idaho Department of Water Resources. (1976/1992)
Margie Wilkins, Michael Verdun, and Nick Van Dyke of the Idaho Department of Water Resources. (2009)
Contact information for the individual or organization that is knowledgeable about the data.
Organization: Idaho Department of Water Resources
Person: Geospatial Technology
Position: GIS Analyst
Phone: (208) 287-4800
Fax: (208) 287-6700
Email: gisinfo@idwr.idaho.gov
Instructions:
Additional data at-- https://research.idwr.idaho.gov
Address type: physical
Address:
322 East Front Street
City: Boise
State or Province: Idaho
Postal code: 83720
How the data are represented, formatted and maintained by the data producing organization.
Data type: vector digital data
Native dataset environment: Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcGIS 10.0.0.2414
Time period(s) for which the data corresponds to the currentness reference.
Beginning date: 20090501
Ending date: 20091031
Currentness reference:
Ground condition in 2009.
The state of and maintenance information for the data.
Data status: Complete
Update frequency: As needed
Words or phrases that summarize certain aspects of the data.
Theme:
Keywords: irrigation, Bear River Compact, land cover, water use, land use
Keyword thesaurus: ESRI Geography Network Thesaurus
Place:
Keywords: Idaho, Bear River
Keyword thesaurus: None
Restrictions and legal prerequisites for accessing or using the data after access is granted.
Use constraints:
The Idaho Department of Water Resources is making this data available as a public service. The Idaho Department of Water Resources strives to ensure that all technical data and other information made available to the public is accurate, complete and in conformance with the Idaho Public Records Act. Neither the Department of Water Resources nor the State of Idaho, however, assumes any legal responsibility for the accuracy or completeness of the information contained on this site. Persons using information from this site for official purposes, or other purposes, for which accuracy and completeness are required, are hereby notified that they should first verify the information with the public records or other primary sources from which the information was obtained.
Information about other, related data sets that are likely to be of interest.
Title: "Idaho's system for monitoring water use in the Bear River Basin"
Originators: Kramber, W.J., H. Anderson, M. Verdun, G. Austiguy, and B. Ondrechen
Series name: Geo Info Systems
Series identification: pp. 8-52
Publisher: Idaho Department of Water Resources
Publication place: Idaho Department of Water Resources
Data type: document