NRCS: Difference between revisions

Revision as of 01:19, 3 February 2017

USDA Natural Resource Conservation Service

Soil data

You can download data from their Web Soil Survey page, at https://websoilsurvey.sc.egov.usda.gov/App/HomePage.htm and then (in theory) view it in their desktop app (if you have MS Access) or using their ArcGIS extension.

Workflow

@@ Line 8: / Line 8: @@
 * So far I cannot view the data in their data viewer.
+* It's because the database is empty.
+* To populate the database requires a copy of MS Access, which I don't have.
+* So their viewer and extension are useless to me.
 Workflow
-# Design areas of interest in ArcMap using shapefiles.
+# Go to [https://websoilsurvey.sc.egov.usda.gov/App/WebSoilSurvey.aspx WSS]
-# Create one AOI shapefile per county
+# Select a county
-# Use the shapefiles to define AOI in the web app. [https://websoilsurvey.sc.egov.usda.gov/App/WebSoilSurvey.aspx WSS]
 # Download the data
-# Load it into ArcMap using their extension
+# Unzip it
+# Copy the tabular/mapunit.txt to mapunit.csv
+# Edit the tabular/mapunit.csv file to add a header line
+# Join the spatial and mapunit.csv in QGIS
+# Save the joined data to a shapefile
+# Import the shapefile into the project