Sea ice melt water has no alkalinity. #6210
Comments
jonbob
added a commit
that referenced
this issue
Mar 6, 2024
Assign alkalinity equals DIC in sea ice melt Set alkalinity of sea ice melt flux into the ocean to be equal to DIC flux, analogous to what is done with river runoff. Previously the flux was zero, resulting in unphysical dilution. Fixes #6210 [BFB] for all current tests
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
When sea ice BGC is active along with ocean BGC, there is an exchange of DIC when ice melts. However, there is no corresponding flux of alkalinity, resulting in an unrealistic dilution of alkalinity in surface waters. Since the current implementation of sea ice BGC doesn’t explicitly calculate alkalinity, this flux needs to be approximated. We propose to simply set the alkalinity flux equal to the DIC flux, exactly as is done for river inputs of alkalinity.
The text was updated successfully, but these errors were encountered: