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<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif"></span>Hi MITgcm users,</p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Apologies if this issue has already been noted. In idealised MITgcm ice shelf cavity model tests we’ve found some strange looking temperature-salinity space profiles that suggest anomalously fresh water (not following the expected ice shelf
water mass transformation), mostly occurring in the grid cells immediately below ice. This problem occurred with the 3<sup>rd</sup> order DST flux limited advection scheme 33:
</p>
<p class="MsoNormal">staggerTimeStep=.TRUE.,</p>
<p class="MsoNormal"> tempAdvScheme=33,</p>
<p class="MsoNormal"> saltAdvScheme=33,</p>
<p class="MsoNormal">The issue was resolved by using the 2<sup>nd</sup> order flux limiter advection scheme 77 instead (thanks Paul Holland for the suggestion and Tore Hattermann for uncovering the problem). Just wanted to flag this issue for other/future MITgcm
ice shelf users! Though, if anyone has looked into why this happens I’d be keen to hear.</p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks</p>
<p class="MsoNormal">Claire </p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Calibri",sans-serif;color:black;mso-ligatures:none">~~~</span></b><b><span style="font-family:"Calibri",sans-serif;color:black;mso-ligatures:none"><o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Calibri",sans-serif;color:black;mso-ligatures:none">Claire Yung</span></b><span style="font-size:10.0pt;font-family:"Calibri",sans-serif;color:black;mso-ligatures:none"> [she/her]</span><span style="font-family:"Calibri",sans-serif;mso-ligatures:none;mso-fareast-language:EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Calibri",sans-serif;color:black;mso-ligatures:none">PhD student<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Calibri",sans-serif;color:black;mso-ligatures:none">Research School of Earth Sciences<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Calibri",sans-serif;color:black;mso-ligatures:none">The Australian National University<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Calibri",sans-serif;color:black;mso-ligatures:none">Canberra ACT 2600</span><o:p></o:p></p>
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