Hello! When using OBSGRID, I have a question regarding running ./get_rda_data.exe. After downloading the upper-air and surface observation data (ds351.0 and ds461.0), I merged all files using the command cat *OBS:2023* > rda_obs. The upper-air data files are named OBS:YYYYMMDDHH, while the surface data files are named SURFACE_OBS:YYYYMMDDHH. Then, I ran ./get_rda_data.exe, and the program generated new files in the OBS:YYYY-MM-DD_HH format. Do these new files contain both surface and upper-air data, or is my merging method incorrect?
