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revision 1.1800 by mlosch, Fri Jan 4 15:36:26 2013 UTC revision 1.1801 by jmc, Fri Jan 4 21:10:50 2013 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7  o pkg/seaice: implement EVP* by Lemieux et al. (2012). In order to be  o model/src:
8    compatible with the default EVP code, this requires changing the EVP    - implement Finite-Volume method for (hydrostatic) presure gradient
9    code around a little; and because any small change immediately breaks      from S.-J. Lin (QJRMS 1997), for atmosphere using sigma-coordinate.
10    the lab_sea.hb87 verification experiment, the reference output is  o pkg/seaice: implement EVP* by Lemieux et al. (2012).
11    updated two times (each time the remaining aggrement was only 2 digits):    - In order to be compatible with the default EVP code, this requires changing
12    - after replacing 1/dt by 1*recip_dt with a precomputed recip_dt      the EVP code around a little; and because any small change immediately
13    - after replacing 1/(1+0.5*dt/tau) by a/(a+1), with a=2*tau/dt      breaks the lab_sea.hb87 verification experiment, the reference output is
14    The adjoint test lab_sea.evp also needed to be updated.      updated two times (each time the remaining aggrement was only 2 digits):
15    Turn on EVP* by setting SEAICE_deltaTevp as before, and setting      - after replacing 1/dt by 1*recip_dt with a precomputed recip_dt
16    SEAICEuseEVPstar=.true.; for EVP* SEAICE_deltaTevp does not need to be      - after replacing 1/(1+0.5*dt/tau) by a/(a+1), with a=2*tau/dt
17    a factor of SEAICE_deltaTdyn, and you can set the number of EVP steps      The adjoint test lab_sea.evp also needed to be updated.
18    explicitly with SEAICEnEVPstarSteps (thereby overriding the default of    - Turn on EVP* by setting SEAICE_deltaTevp as before, and setting
19    INT(SEAICE_deltaTdyn/SEAICE_deltaTevp)). Controlling EVP* is deliberately      SEAICEuseEVPstar=.true.; for EVP* SEAICE_deltaTevp does not need to be
20    kept obscure, because I need to test it a little more.      a factor of SEAICE_deltaTdyn, and you can set the number of EVP steps
21        explicitly with SEAICEnEVPstarSteps (thereby overriding the default of
22        INT(SEAICE_deltaTdyn/SEAICE_deltaTevp)). Controlling EVP* is deliberately
23        kept obscure, because I need to test it a little more.
24  o pkg/cheapaml:  o pkg/cheapaml:
25    - fix few incorrect type (_RL/_RS) in subroutine calls.    - fix few incorrect type (_RL/_RS) in subroutine calls.
26  o pkg/seaice:  o pkg/seaice:
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