[MITgcm-support] Baroclinic tides in MITgcm

[Ruan Xiaozhou]

Dear all,

I’m currently forcing a nested patch with 4 open boundaries. I use realistic atmospheric forcing and also T/S/U/V from reanalysis datasets. However, when I compare the near-bottom tidal flow in my output with mooring observations, the simulated tidal flow is almost an order of magnitude smaller. I think this is due to baroclinic tidal signal since the tidal amplitude from TPXO is already an order of magnitude smaller (both at the open boundaries in my model and at the point of comparison in TPXO). I was wondering if anyone had similar issues before? I’m using bottomDragQuadratic=0.002 and a uniform dz = 10m which should be high enough to resolve all the baroclinic modes. Thanks in advance for your help!

Best,
Xiaozhou

--
Xiaozhou Ruan
Postdoctoral researcher
Department of Earth, Atmospheric and Planetary Sciences
Massachusetts Institute of Technology
54-1622
Cambridge, MA  02139

email: xruan at mit.edu<mailto:xruan at mit.edu>
web:   http://www.mit.edu/~xruan

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.mitgcm.org/pipermail/mitgcm-support/attachments/20190905/0854748b/attachment.html>