variable_type
| id | description | 
|---|---|
| atmospheric | Atmospheric forcing variables | 
| climate | Long term average atmospheric forcings, net recharge, aridity index | 
| hydrogeology | Subsurface parameters – hydraulic conductivity, porosity, etc. | 
| land_surface | Vegetation types and any water or energy fluxes at the land surface | 
| location | Lat, log | 
| run_file | Model run files (not really varibles but they get stored as catalog entries) | 
| stream_network | Watershed and subbasin IDS, stream order, flow directions, HUCs | 
| subsurface | Watertable depth, soil moisture, soil temperature | 
| surface_water | Streamflow, irrigation, diversions | 
| topography | Elevation (raw and processed), slopes and topographic index |