BARPA evaluation scripts for sharing with ACS

Shared Datasets on gadi/NCI:

/g/data/tp28/dev/evaluation_datasets/:

dmi.nc: Dipole Mode Index timeseries
NRM_*clusters/*: Original NRM cluster shapefiles
NRM_clusters.nc: NRM Clusters on BARPA-R grid
NRM_subclusters.nc: NRM Subclusters on BARPA-R grid
BARPA-R_orography.nc
BARPA-R_landseamask.nc
awap_masks.nc: Land sea mask and data quality mask (based on regions with zero rainfall for long period) on the AWAP grid.
gpcc_mask.nc: Data-presence mask for GPCC g10 daily data
clim_indices/*.nc: Generated xclim indices for BARPA, GPCC, AGCD, and ERA5

./lib/:

apply_xclim.py: Reads BARPA-R, AGCD, GPCC or ERA5, and applies xclim indicators
load_iris.py: Loads BARPA-R and CMIP6 data with iris
plotting_functions.py: creates plots from BRR-069 (AGCD comparisons)
spatial_selection.py: Damien Irving's code to generate xarray masks from shapefiles
barpa_drs_interface.py: Reads BARPA-R data using either iris or xarray. Currently interfaces with the test-data on ia39, but can be easily updated to read off the prerelease/release data
cmip6_interface.py: Reads CMIP6 data using either iris or xarray. Currently limits to the GCM used in BARPA experiments, but can be easily extended to read off other ones.
era5_interface.py: Reads the ERA5 data on rt52 using either iris or xarray.
agcd_interface.py: Reads the AGCD data on the zv2 using either iris or xarray.
gpcc_interface.py: Reads the GPCC data on ia39 using xarray.

chs/xclim_prcp_spatial_compare.ipynb : Spatial comparisons of monthly xclim indicators between ACGD, GPCC, ERA5 and BARPA