Output formats

POP supports both netCDF and binary output formats. The format for a particular type of file is chosen at run time through namelist input for each of the output types. Restart files are always written in full double-precision (64-bit) format. By default, other output is written in single precision (32-bit) format.

The advantages and disadvantages of using netCDF and binary output formats are discussed in the following sections.

CESM1 Notes

CESM1 POP2 supports a compile-time option to create double-precison time-averaged ("tavg") history files, which are often useful for debugging purposes and in the evaluation of successful ports to new machines.

To invoke the double-precision tavg option, compile CESM1 POP2 with the -DTAVG_R8 option.