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EC-5 sensors installed at 10cm, 30cm, and 50cm. ECT sensors installed at 30cm and 50cm.

EC-5 sensors installed at 10cm, 30cm, and 50cm. ECT sensors installed at 30cm and 50cm.

Red symbols denote the location of 10 meter USGS data, blue symbols are RTK observations.

STATSGO KML thumbnail

SSURGO KML Thumbnail

A short update to a previous post on the visualization of NCSS/USDA soil survey data in Google Earth. The use of the NetworkLink construct, combined with the spatial indexing present in PostGIS, allows for very rapid lookup and presentation of this massive database. Scale-dependant switching between the detailed (SSURGO) and generalized (STATSGO) databases is done through simple area calculation in PostGIS.

Here is the link to the KMZ file. Here is a link to our conventional viewer application, based on Ka-Map / Mapserver, using the same PostGIS back-end (previous post on this). This PLSS KML file is very useful along-side soil survey information.

 
Feedback is always welcome!

viewed from the north-west

in yellow

Yellow points represent vertical precisions less than 10cm, red points are for precisions greater than 10cm.

 
Site Description:

• Description on the US Forest Service site

 
Some possible approaches

• r.angle.sh (see image below and attached script)