The new FV3GFS with 'replay' capability.

Jeffrey Whitaker​

Tuesday, Mar 20, 2018, 2:00 pm
DSRC Room 1D403


Abstract

The second public release of the NGGPS global model is scheduled for March 15.​ ​ I will go over the features of the new release, including the addition of 'replay' capability.​ ​ Replay is a method for forcing a model run to follow ​an​ observed trajectory.​ ​ It is similar in spirit to nudging, but without some of the undesirable damping properties.​ ​If the forecast model is identical to that used in the data assimilation cycle, replay exactly reproduces the analyses that are being 'replayed' to.​ ​ Some potential applications of replay will be discussed that may be of interest to PSL.

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Seminar Contact: richard.lataitis@noaa.gov