Suspended transport rate with combined waves and currents is possibly overpredicted (requires a good test case)
AFTER SOME THOUGHT, I HAVE MODIFIED MY DESRIPTION OF THIS ISSUE - IT IS MORE 'DEVELOPMENTAL' AND DOES NOT REQUIRE A CHANGE, JUST MORE SCIENCE!
The suspended transport rate in Gaia, when coupled with Telemac2d, uses a Rouse profile modification to the convection components (UCONV and VCONV). The Rouse profile is estimated using USTAR (in gaia_suspension_conv.f). In Sisyphe, this used to be calculated from TOB (the currents only bed shear stress). Now, Gaia uses the combined waves and currents bed shear stress (TOBCW_MEAN). This is sensible, but we feel that a good test case is needed to validate it. The wave orbitals are unlikely to have the same effect on the parabolic vertical mixing profile as steady state flow conditions without waves. The calculated transport rates may be too high as a result. We are currently working on test cases to check which method gives the most accurate transport rates compared to data.