View Metadata

STATSGO (v. 2.3.2), Arizona, 2006

Identification Information

Citation
Title
STATSGO (v. 2.3.2), Arizona, 2006
Originator
United States. Department of Agriculture.
Publisher
U.S. Department of Agriculture, Natural Resources Conservation Service
Publication Date
2006-07-05T:00:00:00
Abstract
This data set consists of general soil association units for the state of Arizona. It was develped by the National Cooperative Soil Survey and supersedes the State Soil Geographic (STATSGO) data set published in 1994. It consists of a broad based inventory of soils and nonsoil areas that occur in a repeatable pattern on the landscape and that can be cartographically shown at the scale mapped. The data set was created by generalizing more detailed soil survey maps. Where more detailed soil survey maps were not available, data on geology, topography, vegetation, and climate were assembled, together with Land Remote Sensing Satellite (LANDSAT) images. Soils of like areas were studied, and the probable classification and extent of the soils were determined. Map unit composition was determined by transecting or sampling areas on the more detailed maps and expanding the data statistically to characterize the whole map unit. This data set consists of georeferenced vector digital data and tabular digital data. The map data were collected in 1-by 2-degree topographic quadrangle units and merged into a seamless national data set. It is distributed in state/territory and national extents. The soil map units are linked to attributes in the National Soil Information System data base which gives the proportionate extent of the component soils and their properties.
Purpose
These data provide information about soil features on or near the surface of the Earth. Data were collected as part of the National Cooperative Soil Survey. These data are intended for geographic display and analysis at the state, regional, and national level. The data should be displayed and analyzed at scales appropriate for 1:250,000-scale data. This datasets is made available to interested persons through the University of Arizona's instance of Open Geoportal. It has been provided to assist educators, students, researchers, and policy makers in mapping and/or analysis applications.
Bounding Box
West
-114.814442
East
-109.045123
North
37.004267
South
31.332341
ISO Topic Category
geoscientificInformation
farming
Theme Keyword
National Soil Information System (NASIS)
State Soil Geographic
USDA
STATSGO
Soils
United States Department of Agriculture
General Soil Map
Theme Keyword Thesaurus
Place Keyword
USA
Place Keyword Thesaurus
Place Keyword
Colorado
Place Keyword Thesaurus
U.S. Department of Commerce, 1995, Countries, Dependencies, Areas of Special Sovereignty, and Their Principal Administrative Divisions (Federal Information Processing Standard 10-4): Washington, DC, National Institute of Standards and Technology.
Place Keyword
State of Arizona
Place Keyword Thesaurus
GNIS
Status
completed
Maintenance and Update Frequency
asNeeded
Cross Reference
Title
State Soil Survey Geographic (STATSGO) data base
URL
Originator
U.S. Department of Agriculture, Soil Conservation Service
Publication Date
1994-01-01
Language
eng
Point of Contact
Contact
U.S. Department of Agriculture, Natural Resources Conservation Service
Position Name
State Soil Scientist
Delivery Point
USDA - Natural Resources Conservation Service
City
Lincoln
Administrative Area
NE
Postal Code
68508-3866
Email
jim.fortner@lin.usda.gov
Phone
402-437-5755

Spatial Reference Information

Reference System Identifier
Code
WGS 84 (EPSG:4326)
Code Space
EPSG
Version
7.9

Data Quality Information

Quantitative Attribute Accuracy Report
Absolute External Positional Accuracy
Lineage
Process Step
Description
The Natural Resources Conservation Service State Soil Scientist or delegate, upon completion of data quality verification, determined that the tabular data should be released for official use. A selected set of map units and components in the soil survey legend was copied to a staging database, and rating values for selected interpretations were generated. The list of selected interpretations is stored in the database table named sainterp.
Process Date
2005-07-15T00:00:00
Process Step
Description
The Natural Resources Conservation Service State Soil Scientist or delegate, upon completion of data quality verification, determined that the tabular data should be released for official use. A selected set of map units and components in the soil survey legend was copied to a staging database, and rating values for selected interpretations were generated. The list of selected interpretations is stored in the database table named sainterp.
Process Date
2006-06-28T00:00:00
Process Step
Description
The tabular data were extracted from the Soil Data Mart without change. The spatial data was exported to an ESRI shapefile.
Process Date
2005-07-18T00:00:00
Process Step
Description
Soil map unit lines and symbols were drafted in red pencil on a mylar overlay that was punch registered to fit the mylar USGS 1:250,000-scale topographic quadrangle. A detailed and complete edit was performed on all overlays before digitizing. The soil delineation overlays were raster scanned at a scanning resolution of at least 0.01 inches and converted to a vector format or were manually digitized on a digitizing tablet with a resolution of at least 0.001 inches. Four control points corresponding to the four corners of the quadrangles were used for registration during data collection. The control points were either explicitly entered or developed by the software. The data sets were edge matched and merged into statewide coverages. A detailed and complete edit was performed on all digital data.
Process Date
1994-01-01T00:00:00
Process Step
Description
The Natural Resources Conservation Service State Soil Scientist or delegate verified that the labels on the digitized soil map units link to map units in the tabular database, and certified the joined data sets for release to the Soil Data Warehouse. A system assigned version number and date stamp were added and the data were copied to the data warehouse. The tabular data for the map units and components were extracted from the data warehouse and reformatted into the soil data delivery data model, then stored in the Soil Data Mart. The spatial data were copied to the Soil Data Mart without change.
Process Date
2006-06-29T00:00:00
Process Step
Description
The Natural Resources Conservation Service State Soil Scientist or delegate verified that the labels on the digitized soil map units link to map units in the tabular database, and certified the joined data sets for release to the Soil Data Warehouse. A system assigned version number and date stamp were added and the data were copied to the data warehouse. The tabular data for the map units and components were extracted from the data warehouse and reformatted into the soil data delivery data model, then stored in the Soil Data Mart. The spatial data were copied to the Soil Data Mart without change.
Process Date
2005-07-15T00:00:00
Process Step
Description
Dataset renamed from STATSGO2.shp to Arizona_STATSGOv2-3-2_2006.shp by Ben Hickson with the University of Arizona Library. Metadata fields corresponding the Open Geoportal Working Group Best Practices Guide (http://opengeoportal.org/working-groups/metadata/) were also updated.
Process Date
Process Step
Description
State coverages were merged into a seamless national coverage. This reduced tabular data redundancy and polygon number. A detailed and complete edit was performed on all digital data.
Process Date
2000-01-01T00:00:00
Process Step
Description
Map unit composition was determined by transecting or sampling areas on the more detailed soil maps and expanding the data statistically to characterize the whole map unit.
Process Date
1994-01-01T00:00:00
Process Step
Description
The National Soil Information System data base was developed by Natural Resources Conservation Service soil scientists according to national standards.
Process Date
2005-01-01T00:00:00
Source
Title
National Soil Information System (NASIS) data base
Publication Date
2005-01-01
Originator
U.S. Department of Agriculture, Natural Resources Conservation Service
Publisher
U.S. Department of Agriculture, Natural Resources Conservation Service
Description
attribute (tabular) information
Source
Title
State Soil Geographic (STATSGO) data base
Publication Date
1994-01-01
Originator
U.S. Department of Agriculture, Natural Resources Conservation Service
Description
source material of soil map unit delineations and soil symbols
Source
Title
multiple maps
Publication Date
Originator
U.S. Geological Survey
Publisher
U.S. Geological Survey
Description
base materials for compilation of map unit delineation linework
Source
Title
multiple reconnaissance, county, and State general soil maps
Publication Date
Originator
U.S Department of Agriculture, Natural Resources Conservation Service
Publisher
U.S. Government Printing Office
Description
reference information for development of map unit delineations and transect data for naming map units where detailed surveys did not exist
Source
Title
multiple compiled mylar overlays of map unit delineations, unpublished
Publication Date
Originator
U.S Department of Agriculture, Natural Resources Conservation Service
Description
digitizing source
Source
Title
multiple soil survey publications
Publication Date
Originator
U.S Department of Agriculture, Natural Resources Conservation Service
Publisher
U.S. Government Printing Office
Description
base information for development of map unit delineations and transect data for naming map units

Distribution Information

Distributor
University of Arizona Library
Online Access
Protocol
Name

Spatial Representation Information

Vector
Topology Level
Vector Object Type
complex
Vector Object Count
1382

Metadata Reference Information

Hierarchy Level
Metadata File Identifier
Dataset URI
http://dx.doi.org/10.2458/azu_geo_arizona_statsgov2-3-2_2006
Metadata Date Stamp
2017-08-16T16:33:24
Metadata Standard Name
ISO 19139 Geographic Information - Metadata - Implementation Specification
Metadata Standard Version
2007
Download