Need trait mapping files updated to ontology terms

[jdeck88]

The directories mostly have a *traits.csv file which lists the columns variable_name and variable_desc.
this looks like, for example in the waterquality dataset:

variable_name,variable_desc
Aluminum,Concentration of Aluminum in water

However, the variable_desc should map the correct ontology label, e.g.:

variable_name,variable_desc
Aluminum,{concentration of elemental aluminium in liquid water}

This issue covers all of the directories, but especially usgs and waterquality.

[ramonawalls]

I am going to leave variable_desc as it, because it defines the variable (useful in some cases). I could add a new column for obo_label, which maps to SPRDIO, but do you need that @jdeck88 if the column SPRDIOterm already has the CURIE for the term? Which do you prefer, labels or IDs?

[jdeck88]

either the CURIE or the label is fine... If using the CURIE it must match exactly the class name in the ontology (same as if you use label to match rdfs:label )

[ramonawalls]

I created a new issue for this as a checklist. See issue #7