Active development moved to https://code.usgs.gov/wma/wp/drb_gridmet_tools

drb_gridmet_tools

Repository with functions to aggregate gridmet climate raster data from pixel grid to vector aoi (hru polygon grid, polylines). This repository heavily relies on grd2shp_xagg library, by rmcd-mscb

Selected gridMET variables:

tmmx:

• Description: Daily Maximum Temperature (2m)\
• Units: degrees Fahrenheit

tmmn:

• Description: Daily Minimum Temperature (2m)\
• Units: degrees Fahrenheit

pr:

• Description: Daily Accumulated Precipitation\
• Units: inch

srad:

• Description: Daily Mean downward shortwave radiation at surface\
• Units: W m-2

vs:

• Description: Daily Mean Wind Speed (10m)
• Units: m/s

rmax:

• Description: Daily Maximum Relative Humidity (2m)
• Units: %

rmin:

• Description: Daily Minimum Relative Humidity (2m)
• Units: %

sph:

• Description: Daily mean specific humidity (2m)
• Units: kg/kg

Running re-gridding for the Delaware River Basin

gridmet_split_script.py processes the gridmet raster dataset values to the scale of the input multi-polygon shapefile.

gridmet_aggregation_PRMS.py processes the output of gridmet_splot_script.py and aggregates the PRMS_segid scale calculating an area weighted average.