Percent sand in intermediate soil horizons for Washington, Oregon, California, Arizona, and New Mexico, USA
Dataset Identification:
Resource Abstract:
Sand percentage was summarized from SSURGO and STATSGO tabular data, joined to source feature data from the NRCS, and then
converted to an 800m raster using the cell center to assign the values. This data set is a digital soil survey and generally
is the most detailed level of soil geographic data developed by the National Cooperative Soil Survey. The information was
prepared by digitizing maps, by compiling information onto a planimetric correct base and digitizing, or by revising digitized
maps using remotely sensed and other information. This data set consists of georeferenced digital map data and computerized
attribute data. The map data are in a soil survey area extent format and include a detailed, field verified inventory of soils
and miscellaneous areas that normally occur in a repeatable pattern on the landscape and that can be cartographically shown
at the scale mapped. A special soil features layer (point and line features) is optional. This layer displays the location
of features too small to delineate at the mapping scale, but they are large enough and contrasting enough to significantly
influence use and management. The soil map units are linked to attributes in the National Soil Information System relational
database, which gives the proportionate extent of the component soils and their properties.
Citation
Title Percent sand in intermediate soil horizons for Washington, Oregon, California, Arizona, and New Mexico, USA