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Icepack - different results between V1.3.3 and latest version on github

L

LauravanDijke

Laura van Dijke
New Member
Dear all,

I have just started working with Icepack, but I found something particular that I am not sure about.
If I run a simple 1 year simulation to look at average ice thickness, I found that the results created by the latest version on github is quite different than the results if I download Icepack v1.3.3. This can be seen in the figures I attached, where I plotted the average ice thickness and ice fraction for both cases.
I compared this to older versions of Icepack as well, which shows quite the same results as V1.3.3.
So I was wondering if there are some recent updates since V1.3.3 that cause the results to change? Or is there a mistake somewhere?
Thank you!

Best regards,
Laura
 

Attachments

  • Ice_thickness_V1.3.3.png
    Ice_thickness_V1.3.3.png
    36.5 KB · Views: 6
  • Ice_thickness_maingithub.png
    Ice_thickness_maingithub.png
    40.6 KB · Views: 7
D

dbailey

CSEG and Liaisons
Staff member
Yes, there was a new method of "advection" introduced in Icepack recently that was answer changing. This is meant to make the seasonal cycle of ice thickness and area look more realistic. If it is important to have the older solution, you should stick with Icepack 1.3.3. Or you could try lateral_flux_type = 'none' in the new code.
 
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