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Version control repository forOfficial Series Descriptions (OSDs).

Official "Soil Series" are the detailed soil types used by the USDA-NRCS and the National Cooperative Soil Survey program. The "Soil Series" is the lowest level in the United States National Soil Classification System hierarchy. Series names are correlated to soil survey map unit components based on specific conditions found within soil survey areas (SSA) and Major Land Resource Areas (MLRAs). More information on the concept and standards for the Soil Series can be found in theNational Soil Survey HandbookPart 614 "Applying Soil Taxonomy".

Key differentia between series are encoded in the narrative portions of OSDs.OSDRegistry provides a readily-accessible, open-source, version-controlled resource for Series concepts in OSDs.

You can download the weekly release of a "snapshot" of all OSDs (as .txt files)here.These files are parsed and stored as JSON in thencss-tech/SoilKnowledgeBase repository and can be queried using thencss-tech/soilDB R packageget_OSD() method.

You can also download the weekly "snapshot" of the "Series Classification" database table (as .csv file)here. The SC database is used for validation of the plain-text data in the OSDs inncss-tech/SoilKnowledgeBase.

Soil Survey Staff, Natural Resources Conservation Service, United States Department of Agriculture. Official Soil Series Descriptions. Available online. Accessed [month/day/year].