Tracer Experiment (and Colored Moisture Analysis; CMA) †

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General Info. †

  • Change "ntrac_" in define.h.
  • ntrac_=2 is taken by ozone, so that numbers more than 3 are available. (Sometimes number 3 is taken by cloud water. Not yet for a solution)
  • Tracers will not be output in grib files by default. subpgb.F should be modified to include them to grib output files.
    • By default, there are 3 slots for tracers/clouds (ozone, cloud water (mixture of cloud water and ice), rain water (mixture of rain water, snow, and graupel)). In a tracer experiment, use some or all of them to save.
  • Tracers will be output to sigma files (sig.ftXX).
  • By default, tracers (ntrac_>3) are just air-equivalent particles. Will not be diminished nor increased.
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General Info for CMA †

  • Modification is required to add the same behavior as water, particularly into the precipitation processes (convection, shallow convection, and large scale condensation) and into the evaporation process from surface boundary.
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Specification for CMA †

  • New subroutines
    • None
  • Modified subroutines
    • moninp.F : for evaporation process from surface boundary
    • gbphys.F : for precipitation processes.
    • subpgb.F : for output.
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Step by step †

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Notes †