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  • What's the impact of resolution on the forecast of the storm?

  • Reduce the timestep of the model - does this improve or worsen the forecast?

    Expand
    titleReduce the gravity wave drag (Click here to expand)

     Edit the source code to half the gravity wave drag coefficient

    File: ifs/phys_ec/sugwd.F90, change:

    Code Block
    Line 108: !  Revised gwd parameter values
Line 109: GKDRAG =0.15_JPRB

    to:

    Code Block
    Line 108: !  Revised gwd parameter values
Line 109: GKDRAG = 0.075_JPRB   !  half GWD coefficient: 0.15_JPRB

Further reading

This article in a recent ECMWF Newsletter has a description of student projects at the University of Stockholm using the Lothar storm case study.

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