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JaroCamphuijsen / TCM

Different aspects of tropical cyclones modelling
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Coupling ERA5 and Holland model #5

Open Ireneben73 opened 11 months ago

Ireneben73 commented 11 months ago

OMUSE should be able to combine the Holland model with ERA5 data on the background, and interpolate this data based on a predefined parameter. Delft3d FM can already do this by defining the spw_merge_frac = 0.33333 parameter in the spiderweb file output of the Holland model and by adding in the external forcing file the following:

QUANTITY =windx FILENAME =ERA5_4GTSM_u10_Irma.nc FILETYPE =11 METHOD =3 OPERAND =O

QUANTITY =windy FILENAME =ERA5_4GTSM_v10_Irma.nc FILETYPE =11 METHOD =3 OPERAND =O

QUANTITY =atmosphericpressure FILENAME =ERA5_4GTSM_sp_Irma.nc FILETYPE =11 METHOD =3 OPERAND =O

QUANTITY=windxy FILENAME=2017_irma.spw FILETYPE=5 METHOD=1 OPERAND=+

QUANTITY=atmosphericpressure FILENAME=2017_irma.spw FILETYPE=5 METHOD=1 OPERAND=+

JaroCamphuijsen commented 11 months ago

The Holland model and era5 should be coupled by replacing era5 with the Holland model for the cyclone center region and interpolate in a ring shaped region outside that according to the spiderweb parameter spw_merge_frac = 0.33333 to mix with the ERA5 background.