<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body style="overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;">Yes, I believe the thick sea ice is just outside of the cavities.<br><div><br><blockquote type="cite"><div>On Aug 21, 2025, at 9:39 PM, Dimitris Menemenlis <dmenemenlis@gmail.com> wrote:</div><br class="Apple-interchange-newline"><div><meta charset="UTF-8"><span style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; float: none; display: inline !important;">Second question. Does the thick sea ice occur outside cavities these cavities?</span><br style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;"><div dir="ltr" style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;"><br><blockquote type="cite">On Aug 21, 2025, at 6:32 PM, Madeleine Kendall Youngs <<a href="mailto:myoungs@umd.edu">myoungs@umd.edu</a>> wrote:<br><br></blockquote></div><blockquote type="cite" style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; text-decoration: none;"><div dir="ltr">Yes, I am. I wondered if something like that were the case. <br><div><br><blockquote type="cite"><div>On Aug 21, 2025, at 4:29 PM, Dimitris Menemenlis <dmenemenlis@gmail.com> wrote:</div><br class="Apple-interchange-newline"><div><div style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;">Out of curiosity, are you using pkg/shelfice in your configuration?</div><div style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;"><br></div><div style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;">Dimitris<br><div><br></div><div><br><div><blockquote type="cite"><div>On Aug 21, 2025, at 1:01 PM, Madeleine Kendall Youngs <myoungs@umd.edu> wrote:</div><br class="Apple-interchange-newline"><div><div style="overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;"><font face=".AppleSystemUIFont">Hi All,</font><div><font face=".AppleSystemUIFont"><br></font></div><div><font face=".AppleSystemUIFont">I am running a circumpolar antarctic model at 1/12 degree and I keep getting so thick of sea ice it throws an r* error. I can get it to be thin enough using ice diffusion but physically that seems dubious. I have also tried the work arounds in the documentation 8.6.2.7 changing the <a class="reference external" href="http://lxr.mitgcm.org/lxr2/ident/MITgcm?_i=SEAICEpressReplFac" style="box-sizing: border-box; color: rgb(41, 128, 185); text-decoration: none; cursor: pointer; overflow-wrap: anywhere; font-variant-ligatures: normal; orphans: 2; widows: 2; background-color: rgb(252, 252, 252);">SEAICEpressReplFac</a><span style="color: rgb(64, 64, 64); font-variant-ligatures: normal; orphans: 2; widows: 2; background-color: rgb(252, 252, 252);"> = 0; and even the SEAICE_CAP_ICELOAD. Changing the former didn’t seem to have an effect. Changing the latter didn’t seem to change the h_eff max value I have been following in the STDOUT. Files. I have attached the data.seaice file. Do you all have any advice on how to solve this issue? I have looked at the output and it is not just that I have weird ponds with sea ice that is too thick, it is too large in entire embayments that should be able to flush. </span></font></div><div><font face=".AppleSystemUIFont"><span style="color: rgb(64, 64, 64); font-variant-ligatures: normal; orphans: 2; widows: 2; background-color: rgb(252, 252, 252);"><br></span></font></div><div><font face=".AppleSystemUIFont"><span style="color: rgb(64, 64, 64); font-variant-ligatures: normal; orphans: 2; widows: 2; background-color: rgb(252, 252, 252);">Thanks,</span></font></div><div><font face=".AppleSystemUIFont"><span style="color: rgb(64, 64, 64); font-variant-ligatures: normal; orphans: 2; widows: 2; background-color: rgb(252, 252, 252);">Madeleine</span></font></div><div><span style="font-size: 16px; color: rgb(64, 64, 64); font-family: Lato, proxima-nova, "Helvetica Neue", Arial, sans-serif; font-variant-ligatures: normal; orphans: 2; widows: 2; background-color: rgb(252, 252, 252);"></span></div></div></div></blockquote><br></div><br></div></div><span style="caret-color: rgb(0, 0, 0); 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