.. _configurations: ======================================= Available configurations for the replay ======================================= Available Compsets ------------------ The replay requires resetting buffer variables to their previous values every time the model backs up. The current setup only resets buffer variables in the FHIST_DARTC6 compset, which is similar to the normal AMIP compsets but with a stub river component and has been used for other data assimilation purposes. A description of the compset is in **components/cam/cime_config/confic_compsets.xml**. Additional compsets could be added by making similar changes to the ocean or river buffer variables (any variables that show up in the component.r. restart file) as for the CICE and CLM components (see :ref:`API ` for descriptions of what files need to be changed). Available Resolutions --------------------- Replay should be able to use any fv resolution that matches your reanalysis dataset. Namelist parameters ------------------- Various additional Namlist parameters are available for configuring the replay, defined in **components/cam/bld/namelist_files/namelist_definition.xml**. Specific replay parameters are defined below: Replay_Model: type="logical", category="replay", group="replay_nl" Toggle replay ON/OFF. Default: FALSE Replay_Path: type="char*256", input_pathname="abs", category="replay", group="replay_nl" Full pathname of analyses data to use for replay. (e.g. '/$DIN_LOC_ROOT/atm/cam/replay/') Default: none Replay_File_Template: type="char*80", category="replay", group="replay_nl" Template for replay analyses file names. (e.g. '/MERRA2_%y%m%d_%h.nc') Default: none Replay_Beg_Year: type="integer", category="replay", group="replay_nl" Year at which replay begins. Default: 1980 Replay_coef: type="real", category="replay", group="replay_nl" Coeffcient for replay [0.,1.]. Fraction of nudging tendency applied: usually 1 (full forcing) or 0 (no forcing). Default: 1. Replay_coef_U type="real" category="replay", group="replay_nl" U Coeffcient for replay -- usually 1 (full forcing) or 0 (no forcing) [0.,1.] fraction of nudging tendency applied. Default: 1. Replay_coef_V type="real" category="replay", group="replay_nl" V Coeffcient for replay -- usually 1 (full forcing) or 0 (no forcing) [0.,1.] fraction of nudging tendency applied. Default: 1. Replay_coef_T type="real" category="replay", group="replay_nl" T Coeffcient for replay -- usually 1 (full forcing) or 0 (no forcing) [0.,1.] fraction of nudging tendency applied. Default: 1. Replay_coef_Q type="real" category="replay", group="replay_nl" Q Coeffcient for replay -- usually 1 (full forcing) or 0 (no forcing) [0.,1.] fraction of nudging tendency applied. Default: 1. Replay_coef_PS type="real" category="replay", group="replay_nl" PS Coeffcient for replay -- usually 1 (full forcing) or 0 (no forcing) [0.,1.] fraction of nudging tendency applied. Default: 1. Replay_Hwin_lat0 type="real" category="replay", group="replay_nl" LAT0 center of Horizontal Window in degrees [-90.,90.]. Default: 0 Replay_Hwin_latWidth type="real" category="replay", group="replay_nl" Width of LAT Window in degrees. Default: 9999 (all latitudes) Replay_Hwin_latDelta type="real" category="replay", group="replay_nl" Width of transition which controls the steepness of window transition in latitude. 0. --> Step function Default: 1 Replay_Hwin_lon0 type="real" category="replay", group="replay_nl" LON0 center of Horizontal Window in degrees [0.,360.]. Default: 180 Replay_Hwin_lonWidth type="real" category="replay", group="replay_nl" Width of LON Window in degrees. Default: 9999 (all longitudes) Replay_Hwin_lonDelta type="real" category="replay", group="replay_nl" Width of transition which controls the steepness of window transition in longitude. 0. --> Step function Default: none Replay_Hwin_Invert type="real" category="replay", group="replay_nl" Invert Horizontal Window Function to its Compliment. TRUE = value=0 inside the specified window, 1 outside (unforced model within window, replay outside) FALSE = value=1 inside the specified window, 0 outside (replay within window, unforced model outside) Default: FALSE Replay_Vwin_Hindex type="real" category="replay", group="replay_nl" HIGH Level Index for Verical Window specified in terms of model level indices. (e.g. For a 30 level model, Replay_Vwin_Hindex ~ 30 ). For CAM, this is the bound closer to the surface Default: Vertical levels + 1 Replay_Vwin_Hdelta type="real" category="replay", group="replay_nl" Width of transition for HIGH end of Vertical Window. Default: 0.001 Replay_Vwin_Lindex type="real" category="replay", group="replay_nl" LOW Level Index for Verical Window specified in terms of model level indices. (e.g. Replay_Vwin_Lindex ~ 0 ) For CAM, this is the bound closer to the top of atmosphere. Default: 0 Replay_Vwin_Ldelta type="real" category="replay", group="replay_nl" Width of transition for LOW end of Vertical Window. Default: 0.001 Replay_Vwin_Invert type="real" category="replay", group="replay_nl" Invert Vertical Window Function to its Compliment. TRUE = value=0 inside the specified window, 1 outside FALSE = value=1 inside the specified window, 0 outside Default: FALSE Replay_Uprof type="real" category="replay", group="replay_nl" Profile index for U replaying. 0 == OFF (No replaying of this variable) 1 == CONSTANT (Spatially Uniform Replaying) 2 == HEAVISIDE WINDOW FUNCTION (Use windowing) Default: 1 Replay_Vprof type="real" category="replay", group="replay_nl" Profile index for V replaying. 0 == OFF (No replaying of this variable) 1 == CONSTANT (Spatially Uniform Replaying) 2 == HEAVISIDE WINDOW FUNCTION (Use windowing) Default: 1 Replay_Tprof type="real" category="replay", group="replay_nl" Profile index for T replaying. 0 == OFF (No replaying of this variable) 1 == CONSTANT (Spatially Uniform Replaying) 2 == HEAVISIDE WINDOW FUNCTION (Use windowing) Default: 1 Replay_Qprof type="real" category="replay", group="replay_nl" Profile index for Q replaying. 0 == OFF (No replaying of this variable) 1 == CONSTANT (Spatially Uniform Replaying) 2 == HEAVISIDE WINDOW FUNCTIO (Use windowing)N Default: 1 Replay_PSprof type="real" category="replay", group="replay_nl" Profile index for PS replaying. 0 == OFF (No replaying of this variable) 1 == CONSTANT (Spatially Uniform Replaying) 2 == HEAVISIDE WINDOW FUNCTIO (Use windowing)N Default: 0