R - University of Wisconsin MM5 Real Time Forecast and Forecast ...

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Description of Case 1 and response functions• Cold frontal passage over the upper midwest duringthe 36h period beginning 1200 UTC 10 April 2003• Sensitivity gradients were calculated for the 36hour MM5 forecast from Eta model initialconditions at 1200 UTC 10 April 2003 for threeresponse functions:– 1) average temperature over WI– 2) average north-south temperature differenceover northern WI– 3) average zonal wind over WI
Mean sea level pressure and temperature (σ=0.85)
Page 1 and 2: Application and interpretation ofad
Page 3 and 4: Goals• Describe what an adjoint m
Page 5 and 6: Relationship between the nonlinear
Page 7 and 8: Application #1: Synoptic case studi
Page 9: Modeling System Used• MM5 Adjoint
Page 13: 36h temperature sensitivity evoluti
Page 17 and 18: ∂R∂u∂R∂v700 hPa sensitiviti
Page 19 and 20: 700 hPa sensitivity gradients valid
Page 21 and 22: Impact study of McTaggart-Cowan (20
Page 23 and 24: Initial state (250:300 hPa PV)
Page 25 and 26: Final state
Page 27 and 28: Application #2: Identification of
Page 29 and 30: Control and perturbed analyses
Page 31 and 32: VERIFYING ANALYSISDAY-5 FORECAST“
Page 33 and 34: Application #3: 4DVAR data assimila
Page 35 and 36: La CASsE STUDY1200 UTC 13 February
Page 37 and 38: Assimilation in sensitive regions12
Page 39: Questions?Real-time forecast sensit

R - University of Wisconsin MM5 Real Time Forecast and Forecast ...

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