Tracer capabilities, e.g. ice age?

[QiangWei-Wade]

It seems that SICOPOLIS and PISM have the ability to retain and output ice age at any given grid point. Is there a plan to incorporate this feature in ISSM, or even general tracers?

Thanks,
Qiang

[MathieuMorlighem]

Hello @QiangWei-Wade

we started implementing an age model in ISSM a couple of years ago, but it is not complete yet (you can see md.transient.isage, but it is not working). It will take some time to finish it and it does not seem like a super popular solver compared to other requests we have received.
Otherwise you can always code a simple Eulerian scheme by hand. If you have a 2d model exp/flowlines.m will provide a great starting point.

All the best
Mathieu