#ls2(research/Memo/ECPC)

* Isotopes in GSM [#v76752e8]

#contents

** General Info. [#c7a9f536]
First, two additional tracers should be incorporated as [[Tracer Experiment>../Tracer Experiment]].
- Change "ntrac_" in define.h.
- Change "ntrac_ = 4" 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.
** Specification for IsoGSM [#k1bbf195]
-New subroutines
-- freq.F
-- frkin.F
-- sfciso.F
-- isorsv.F
-- comfiso.h (include)
-Modified subroutines
-- moninp.F : for evaporation process from surface boundary
-- gbphys.F : for precipitation processes.
-- subpgb.F : for output.
-- cloud.F
-- rascnv.F
-- rascnp.F
-- rasv.F
-- lrgscl.F
-- zerflx.F
-- wriflx.F
-- gridiff.F
-- idsdef.F (share)
-- gsmini.F
-- gemstep.F
** Step by step [#i3630301]

** Notes [#qd8ca5cc]
- Modify share/idsdef.F to increase precision of GRIB output. 
-- latent heat: 2->5
-- precipitable water: 2->5
-- humidity: 7->9
-- precip rate: 8->9
-- conv. rate: 7->9