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Gridded Soil Survey Geographic Database (gSSURGO)
dataset
posted on 2023-11-30, 07:23 authored by USDA Natural Resources Conservation ServiceThis dataset is called the Gridded SSURGO (gSSURGO) Database and is derived from the Soil Survey Geographic (SSURGO) Database. SSURGO is generally the most detailed level of soil geographic data developed by the National Cooperative Soil Survey (NCSS) in accordance with NCSS mapping standards. The tabular data represent the soil attributes, and are derived from properties and characteristics stored in the National Soil Information System (NASIS). The gSSURGO data were prepared by merging traditional SSURGO digital vector map and tabular data into State-wide extents, and adding a State-wide gridded map layer derived from the vector, plus a new value added look up (valu) table containing "ready to map" attributes. The gridded map layer is offered in an ArcGIS file geodatabase raster format.
The raster and vector map data have a State-wide extent. The raster map data have a 10 meter cell size that approximates the vector polygons in an Albers Equal Area projection. Each cell (and polygon) is linked to a map unit identifier called the map unit key. A unique map unit key is used to link to raster cells and polygons to attribute tables, including the new value added look up (valu) table that contains additional derived data.
The value added look up (valu) table contains attribute data summarized to the map unit level using best practice generalization methods intended to meet the needs of most users. The generalization methods include map unit component weighted averages and percent of the map unit meeting a given criteria.
Resources in this dataset:
Resource Title: gSSURGO downloads Page.
File Name: Web Page, url: https://www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/survey/geo/?cid=nrcs142p2_053628#value
Download gSSURGO Databases Other resources include introduction to gSSURGO, User Guide (PDF; 4.22 MB), SSURGO/gSSURGO ArcTools, Valu1 (Value Added Look Up) Table, Metadata, Recommended Data Citations, Technical Information, Sample gSSURGO Map Themes
Funding
Natural Resources Conservation Service
History
Data contact name
Soils HotlineData contact email
soilshotline@usda.govPublisher
Natural Resources Conservation Service, United States Department of AgricultureTheme
- Not specified
Geographic Coverage
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location - description
United States of America, Puerto Rico, U.S. Virgin Islands, Northern Mariana Islands, Guam, Republic of the Marshall Islands, Republic of Palau, American Samoa, Federated States of MicronesiaISO Topic Category
- environment
- geoscientificInformation
- imageryBaseMapsEarthCover
National Agricultural Library Thesaurus terms
databases; soil; soil surveysOMB Bureau Code
- 005:53 - Natural Resources Conservation Service
OMB Program Code
- 005:027 - Conservation Operations
Pending citation
- No
Public Access Level
- Public
