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</style><div class="default-font-1727858269075" dir="ltr"><div style="white-space:normal;"><span style="white-space: pre-wrap;">Dear MITGCM forum,</span></div><div style="white-space:normal;"> I’m trying to turn the vertical velocity calculation off in my experiment, and I changed the data file like : calc_wVelocity=.FALSE., but there is an error :At line 4097 of file ini_parms.for. Fortran runtime error: cannot match namelist object name calc_wvelocity.</div><div style="white-space:normal;">So I check the ini_parms.F file and find there is no definition for the calc_wvelocity, I add the namelist in the ini_parms.F file, then the experiment can run successfully.</div><div style="white-space:normal;">However , the final results show that the vertical velocity w is not zero, I don’t know how to close the w calculation and make the w=0 all the time, but calculate the u, v at each step. </div><div style="white-space: pre-wrap;">Thanks in advance for any advice.</div><div style="white-space: pre-wrap;">Grace</div></div>