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Canals, Kern County, 2003

Identification Information

Citation
Title
Canals, Kern County, 2003
Originator
U.S. Bureau of Reclamation, Mid-Pacific Region, MPGIS Service Center
Publication Date
2003-12-01
Edition
10 - CLASSIFICATION = General
Geospatial Data Presentation Form
mapDigital
Other Citation Details
Assigned edition numbers started in 2000. Previous versions of this database did not have an edition number assigned. Do not use previous editions of this database. Editions will be archived and made available upon request.
Abstract
Canal system center lines in the Central Valley of California and adjacent areas captured from 1:24,000-scale USGS topographic maps. Updates and modifications made using USGS DOQQs.
Purpose
This database is used for display and analysis purposes. It is not intended to be used as a land survey or representation of land for conveyance or tax purposes. The database is available to all users that may require this information.
Supplemental Information
Processing methodology is described under the Data Quality section.
Scale Denominator
24000
Bounding Box
West
-119.869028
East
-117.886294
North
35.803135
South
34.805709
ISO Topic Category
inlandWaters
transportation
Place Keyword
Kern County (Calif.)
Place Keyword Thesaurus
Temporal Keyword
December 2003
Theme Keyword
Canals, Waterways
Theme Keyword Thesaurus
Resource Constraints
Use Limitation
If used, please indicate that the database source was the U.S. Bureau of Reclamation, MPGIS Service Center.
Legal Constraints
Use Limitation
The U.S. Bureau of Reclamation assumes no liability in the application and use of this data. This data was developed for general planning purposes, it is not intended to be used as a land survey or representation of land for conveyance or tax purposes. It was developed from the source documents following standard procedures of reviewing the digital version against the information contained in the source documents. Use of this data at scales which are more detailed than the source scale is not recommended. This data has not been verified in the field by U.S. Bureau of Reclamation personnel. Should problems be found in this database please contact the Distributor. NOT FOR DISTRIBUTION WITHOUT NOTICE TO USBR
Security Constraints
Maintenance and Update Frequency
unknown
Language
eng
Point of Contact
Contact
Lorri Peltz-Lewis
Position Name
Geospatial Data Administrator
Email
lpeltzlewis@mp.usbr.gov
Phone
(916) 978-5271

Spatial Reference Information

Reference System Identifier
Code
2229
Code Space
EPSG
Version
5.3(9.0.0)

Data Quality Information

Quantitative Attribute Accuracy Report
Evaluation Method
Digital databases created within the USBR was reviewed using existing quality standards.
Result
Good
Absolute External Positional Accuracy
Evaluation Method
Error in digital capture of boundaries is estimated as 12 meters based on use of the USGS 1:24,000-scale quadrangles. Errors can be higher than 12 meters so use data with caution.
Result
Unified Code of Units of Measure m 12 meters
Lineage
Process Step
Description
The canals were only digitized in as center lines. Data are digitized using a Calcomp 9000 digitizer and Arc/Info using the established quality control standards of the U.S. Bureau of Reclamation, Mid-Pacific Region, MPGIS Service Center.

Distribution Information

Format Name
Shapefile
Format Version
ArcGIS
Distributor
U.S. Bureau of Reclamation, Mid-Pacific Region, MPGIS Service Center
Distributor
UC Berkeley Library
Online Access
Protocol
Name

Spatial Representation Information

Vector
Topology Level
geometryOnly
Vector Object Type
composite
Vector Object Count
64

Metadata Reference Information

Hierarchy Level
dataset
Metadata File Identifier
Metadata Date Stamp
2018-04-03
Metadata Standard Name
ISO 19139 Geographic Information - Metadata - Implementation Specification
Metadata Standard Version
2007
Character Set
utf8
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