We traditionally use Commercial GIS Software to process NetCDF and HDF files by converting them to tif then doing statistical calculations like Zonal boundaries.
I have gone through README.GPM document from https://gpm1.gesdisc.eosdis.nasa.gov/data/GPM_L3/GPM_3IMERGDE.06/doc/README.GPM.pdf
Now my concerns are using the data and derivation of zonal accumulations, conversion of hourly and other sub-daily variables corresponding to that of modelling intervals.
Regarding this, I would like to get some guidance in using python or C++ script in doing such calculations using spatial layers along with this data.
I would like to get suggestions in using OPeNDAP, whether it would reduce my difficulties in processing the data. I there any practical manual are tutorials abailable?