[MITgcm-support] negative salt values

[Alan Condron]

Hi all

I have been doing some experiments simulating large glacial flood 
events. To simulate such events I'm adding 5 Sv of water as RUNOFF, into 
5 model grid boxes in hudson bay .
 
When I attempt to do this in the global_ocean.cs30x15 setup, I find that 
I can create negative salinity values where I add the flood, and also 
away from this region as the flood event advects in the model. I also 
get negative values in a tracer I tag the flood waters with.

I was surprised I could get negative salinity values. And I wonder if 
its simply the case of setting a flag in the set-up to avoid this?

Thanks
Alan
 

Dr Alan Condron
112 O'Neill
P.O. Box 755220
University of Alaska Fairbanks
Fairbanks, AK 99775-7220
Phone: (907) 474-7707