oggm.tasks.historical_climate_qc¶

oggm.tasks.historical_climate_qc(gdir)[source]¶

Check the “quality” of the baseline climate data and correct if needed.

This forces the climate data to have at least N months (cfg.PARAMS['climate_qc_months']) of melt per year at the terminus of the glacier (i.e. it simply shifts temperatures up until this condition is reached), and at least N months where accumulation is possible at the glacier top (i.e. shifting the temperatures down, only happening if the temperatures were not shifted upwards before).

In practice, this relatively aggressive shift will be compensated by the calibration, and sensitivity analyses show that the effect is positive (i.e. less failing glaciers and more realistic temperature sensitivity parameters) while not affecting the regional results too much.

Notes

Files written to the glacier directory:

climate_historical.nc: The historical monthly climate timeseries stored in a netCDF file.