Question About "advect_iceberg_no_acc" in openberg.py

[dayexingyang]

Hi,

I have a question regarding the function "advect_iceberg_no_acc" in openberg.py at Line 462. Why does the implementation not use the iceberg velocity calculated in the previous time step as the initial velocity for the current time step? Instead, it relies on advect_iceberg_no_acc for computation. Could you please clarify the basis behind the formula used in advect_iceberg_no_acc?

Thanks. Looking forward to your response.

[knutfrode]

Hi, perhaps you can answer this question @AchrefAO ?

[AchrefAO]

The no_acc function assumes that the iceberg has no inertia, so it reacts instantaneously to the forcings, regardless of the velocity in the previous time step. This seems like a very unrealistic assumption but in practise it does not change much the results. Hope that clarifies it.

[dayexingyang]

The no_acc function assumes that the iceberg has no inertia, so it reacts instantaneously to the forcings, regardless of the velocity in the previous time step. This seems like a very unrealistic assumption but in practise it does not change much the results. Hope that clarifies it.

Thanks for your reply. It's an interesting setting.