/[MITgcm]/MITgcm/doc/diags_changes.txt
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revision 1.3 by jmc, Sun Apr 4 14:28:20 2010 UTC revision 1.4 by dimitri, Fri May 20 15:54:18 2011 UTC
# Line 153  And with the default value: salt_EvPrRn= Line 153  And with the default value: salt_EvPrRn=
153   surForcS = oceSflux + SRELAX - [PmEpR*SSS]   surForcS = oceSflux + SRELAX - [PmEpR*SSS]
154    
155  Notes:  Notes:
156  1) here PmEpR is assumed to be the fresh-water mass flux  1) Here PmEpR is assumed to be the fresh-water mass flux
157   per surface area [units: kg/m^2/s] whereas the model variable     per surface area [units: kg/m^2/s] whereas the model variable
158   EmPmR is still a volume flux per surface area [units: m/s].     EmPmR is still a volume flux per surface area [units: m/s].
159  2) with Linear Free surface (nonlinFreeSurf=0), the term  2) With Linear FreeSurf, there is a small loss of heat/salt/tracer at the
160  corresponding to w_surface*SST,SSS is missing in TFLUX,SFLUX     surface (d/dt(Eta) inconsistent with fixed surf grid cell thickness:
161  [might be added later ?] to match exactly the Heat and Salt     a) if linFSConserveTr is set to true (file "data"), then the model
162  budget evolution.        corrects for this (see S/R calc_wsurf_tr.F).
163  --------------------------------------------------------------------------     b) if linFSConserveTr=False (=the default), the term corresponding
164          to w_surface*SST,SSS is missing in TFLUX,SFLUX to match exactly the
165          Heat and Salt budget evolution so need to account for this term in
166          the budget, which can be obtained from the 1rst level
167          of WTHMASS / WSLTMASS diagnostics (diagnostics ADVr_TH / ADVr_SLT
168          is not the right one for this purpose, it's just zero at k=1).
169    3) There is just one more undocumented/hidden case
170       (nonlinFreeSurf=0 & select_rStar=-1) which is not covered.

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