Changes between Version 3 and Version 4 of ticket/298/TicketSummary/IASISingleObsTest


Ignore:
Timestamp:
May 25, 2017 4:02:50 PM (2 years ago)
Author:
Jin Lee
Comment:

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  • ticket/298/TicketSummary/IASISingleObsTest

    v3 v4  
    1010
    1111   * 3DVAR
    12    * non-hybrid
    13    * Resolution of PFM is N216 - same resolution as screen 3DVAR
     12   * non-hybrid and no ensemble cycles
     13   * Resolution of PFM is N108
    1414   * no VarBC
    1515
    16    Note 1. The initial hybrid 4DVAR for AHI single-obs test was run at N108 PFM resolution. That needs to be done with N216 res.
     16   Note 1. N108 PFM resolution differs from the screen 3DVAR resolution
    1717
    18 Experiment was done using suite ID u-am568 (copy of u-aj730/trunk@40220),
    19    * ensemble and hybrid VAR are switched off
    20    *
     18Experiment was done using suite ID u-am568 (copy of u-aj730/trunk@40220). Following modifications were made to arrive at a configuration outlined above,
    2119
     20   * ensemble and hybrid VAR are switched off (job #1)
     21   * turned off VarBC (job #2)
     22   * copied screen 3DVAR app config file then made following changes
     23     * changed to use correct LS, varobs and varcx
     24     *
     25
     26== !ToDo ==
     27
     28* Under [namelist:var_minimisenl] of gl_var_anal_low app maxiterations is 20. Perhpas this needs to be increased to 40 as in 4DVAR (?)