feat: variance off mean as error in harmonic operators
feat: add GSFC MERRA hybrid SMB (#13)
docs: add documentation for merra hybrid (#13)
feat: use crs to get PS standard parallel (#13)
feat: additionally output surface mass balance anomalies (#13)
feat: add from file in merra hybrid harmonics (#13)
fix: fix output MERRA hybrid harmonics file name (#13)
feat: add option for setting input format of the mascon files (#13)
feat: add default land-sea mask for mascons (#13)
fix: calculate MERRA hybrid grid areas if not internal
fix: output suffix in MERRA-hybrid harmonics
fix: fix output file version for 1.1
fix: fix masked array for fill values
feat: add regrid of MERRA-2 hybrid variables
docs: add documentation about regrid program
fix: add scikit-learn to dependencies
fix: use original FDM file for ais M2-hybrid products
ci: install proj from source for cartopy deps (#14)
feat: include special case of the pole when calculating polar stereographic areas (#14)
feat: use GRACE/GRACE-FO month to calendar month converters (#14)
feat: add version program (#14)
fix: suppress warnings in merra hybrid harmonics (#14)
fix: MERRA-2 SMB harmonics to address #15 (#16)
refactor: using python logging for handling verbose output (#16)
feat: add ERA5 mean, cumulative and harmonic P-E programs (#17)
feat: added option to retrieve specific ERA5 surface variables (#17)
feat: add ERA5 mean, cumulative and harmonic programs (#17)
fix: add ncdf_expver to reduce 4d ERA5 (#17)
feat: finish updating ERA5 programs (#17)
fix: use calendar to grace function to calculate month in ERA harmonics
fix: convert ERA5 P-E from m/day to m/month
fix: fix logging with output files
feat: more MERRA-2 products (#18)
feat: include sublimation from snow surface (#18)
docs: add references to harmonics (#18)
feat: add RACMO SMB programs (#19)
refactor: using python logging for handling verbose output (#20)
docs: add notes (#20)
refactor: open MERRA-2 hybrid product options to address #21 (#22)
feat: added GSFC MERRA-2 Hybrid Greenland v1.2 (#23)
feat: can use variable loglevels for verbose output (#24)
docs: converting docstrings to numpydoc format (#25)
refactor: use wrapper function for reading load Love numbers (#25)
refactor: updates from gravity_toolkit.utiliities (#25)
fix: setup for readthedocs
test: try docker build with windows (#26)
fix: include utf-8 encoding in reads to be windows compliant (#26)
feat: add GIA to harmonic_operators (#27)
refactor: lower case keyword arguments to output spatial (#28)
fix: deprecation fixes for regular expressions (#28)
fix: remove singleton dimensions and copy variables to output (#28)