improvement for saving the meta/statistic/option. json file in preprocessing step
When I wrote the datahub description https://datapub.fz-juelich.de/esde/esde-nfs/online_publication/2mT_by_DL/era5-Y2007-2019M01to12-80x48-3960N0180E-2t_t_850/, I found that there are much of duplicated information in the options.json statistic and meta.json file. We need sae these data in a better manner (e.g. vars and sw_corners saved in options.json and meta.json files)
Edited by Bing Gong