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--></style></head><body lang=EN-US link="#0563C1" vlink="#954F72" style='word-wrap:break-word'><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt'>Hi everyone, <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>A simple question. I am checking the wind stress formula when sea ice is present. In pkg/seaice/dynsolver.F, we have the combined ocean and ice stress expressed in the form, <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>DAIRN(I,J,bi,bj) =<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'> & RHOAIR*(SEAICE_drag*AAA*AREA(I,J,bi,bj)<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'> & +OCEAN_drag*(2.70 _d 0+0.142 _d 0*AAA<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'> & +0.0764 _d 0*AAA*AAA)*(ONE-AREA(I,J,bi,bj)))<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'> ENDIF<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>To me, it looks like the calculation of ocean drag coefficient uses what is proposed in Large and Yeager, 2004, i.e., (2.7/U_10+0.142+0.0764U_10)/1000<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>Is this the default calculation when sea ice covers part of the cell? <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>Thanks,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>Yilang<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'><o:p> </o:p></span></p></div></body></html>