[MITgcm-support] [EXTERNAL] How to select interpolation method in EXF_INTERP_UV

[Menemenlis, Dimitris (US 329B)]

C   {inputField}_interpMethod :: interpolation method: =0 : no interpolation ;
C                             :: =1,11,21 : bilinear ; =2,12,22 : bicubic ;
C                             :: =1,2 for tracer ; =11,12 for U ; =21,22 for V.

so set:

  uwind_interpMethod = 11
  vwind_interpMethod = 21

in data.exf under EXF_NML_04

But watch out, there is a reason why we default to bicubic for wind: bilinear interpolation can cause large spurious gradients and wind stress curl anomalies at the location where wind is specified.

D.


On May 1, 2023, at 4:43 AM, Sabri MUTLU (MAM-ÇTÜE) <sabri.mutlu at tubitak.gov.tr> wrote:

Dear MITgcm Users and Developers,

I would like to select bilinear interpolation method for external wind data (U,V) instead of default one which is bicubic. Could someone tell me how to change the method for wind data?

Best.
Sabri MUTLU
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