fix: uncertainties for SLR CS21 and CS22
feat: add option for setting input format of the mascon files (#46)
feat: add averaging kernel program (#46)
feat: time-variable gravity data from COST-G, GRAZ, SWARM #37 (#47)
feat: time-variable gravity data from COST-G GRAZ, SWARM #37 (#47)
feat: need to add sync programs for all products (#47)
refactor: call read ICGEM from read gfc (#47)
fix: Swarm strings and titles (#47)
docs: update documentation to add additional information (#47)
feat: add sync programs for Swarm and GRACE COST-G (#47)
feat: add ITSG GRAZ GRACE sync (#47)
fix: accidental copy paste (#47)
fix: output index in separate loop for COST-G (#47)
test: add tests for COST-G, GRAZ and Swarm gfc files (#47)
test: use fixture to download geocenter files (#47)
refactor: merged integration and fourier harmonics programs fix: use fill values for input ascii files in convert_harmonics fix: update grid attributes after allocating for data in combine_harmonics ci: install proj from source for cartopy dependency ci: install devel cartopy from repo (#48)
refactor: adding new tools module to simplify notebooks (#49)
feat: adding new time functions for to/from grace months (#49)
docs: add documentation for tools (#49)
fix: adjust months if final in time series (#49)
fix: adjustable minimum in gaussian weights
refactor: slim requirements (#50)
refactor: using python logging for handling verbose output (#51)
feat: add version program and add package __version__ attribute (#51)
feat: add more remove file options in GRACE maps (#52)
fix: remove file choices in calc mascon (#52)
fix: logging CRITICAL
fix: logging with filenames
feat: grid conversion routines for publicly available mascon solutions (#53)
test: attempt to download cost-g from http (#53)
refactor: use logging to print multiprocessing exceptions
refactor: netCDF4 and HDF5 input programs (#54)
ci: update for geoid-toolkit dependencies (#54)
docs: pin docutils to 0.18 (#54)
fix: modify legendre normalization to prevent high degree overflows (#55)
test: add legendre test (#55)
test: add associated legendre polynomial test (#56)
fix: HDF5 and netCDF4 io for single time case (#56)
fix: format for index in notebooks (#56)
feat: use new GSFC weekly 5x5s for CS2 and C50 (#57)
refactor: create geocenter program for reading and operating (#58)
test: include new geocenter class (#58)
feat: add load love numbers for unit conversion (#58)
feat: add mean function to geocenter (#58)
refactor: rename SLF geocenter reader (#58)
feat: add more geocenter operations (#58)
feat: add geocenter figure programs from Sutterley and Velicogna (2019)
feat: update geocenter plot programs for AGU (#60)
feat: added netCDF4 reader for UCI iteration files (#60)
feat: added custom colormap function for some common scales (#60)
feat: added UNITS list option for converting from custom units (#60)
feat: option to specify a specific geocenter correction file (#61)
feat: can use variable loglevels for verbose output (#61)
fix: fix default file prefix to include center and release information (#61)