Add more diurnal cycle frequencies

[forsyth2]

#34 adds diurnal cycle diagnostics, but only for 8xdaily (i.e., every 3 hours). We should extend zppy to handle different frequencies, such as hourly.

[golaz]

Summarizing off-line discussion. Configuration file entry would look like the following for 3 hourly data:

[climo]

[[ atm_monthly_diurnal_8xdaily_180x360_aave ]]
  input_subdir = "archive/atm/hist"
  input_files = "eam.h4"
  mapping_file = /home/ac.zender/data/maps/map_ne30pg2_to_cmip6_180x360_aave.20200201.nc
  vars = "PRECT"
  frequency = "monthly_diurnal_8xdaily"

For hourly data from h5 file, change input_files and frequency:

  input_files = "eam.h5"
  frequency = "monthly_diurnal_24xdaily"

In terms of implementation:

• Extract number of samples per day (N) from frequency string: monthly_diurnal_Nxdaily
• Add --tbd=N to ncclimo command line arguments, for example after line

  zppy/templates/climo.bash

  Line 106 in ce32644

  --climatology_mode=hfc \

As @chengzhuzhang pointed out, additional changes are also needed within the e3sm_diags task. In particular, the following is not robust:

zppy/templates/e3sm_diags.bash

Line 60 in ce32644

cp -s ${climoDir}/${case}.eam.h4_*_${Y1}??_${Y2}??_climo.nc .

This is kind of annoying. Since the files are in separate directories, could we just use a wildcard instead?

cp -s ${climoDir}/${case}.*_*_${Y1}??_${Y2}??_climo.nc .