# ACCESS CM3 technical meeting minutes

**URL:** <https://forum.access-hive.org.au/t/access-cm3-technical-meeting-minutes/5429>\
**Category:** Coupled Model\
**Tags:** access-cm3\
**Created:** [23 October 2025 23:38 UTC](https://forum.access-hive.org.au/t/access-cm3-technical-meeting-minutes/5429 "2025-10-23T23:38:14Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![MartinDix](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.access-hive.org.au/martindix/32/32_2.png) [@MartinDix](https://forum.access-hive.org.au/u/MartinDix)\
**Post date:** [20 November 2025 00:14 UTC](https://forum.access-hive.org.au/t/access-cm3-technical-meeting-minutes/5429/3 "2025-11-20T00:14:25Z")

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**Date:** 19 Nov 2025

**Sea-ice volume in NH:** @sofarrell says there’s a problem with the ice distribution in the Arctic.The Alaskan side gets too warm in summer while the Russian side which should have melting retains thick ice. Possible problem with pressure pattern and direction of surface winds? TODO: compare winds with AMIP run.

**Continued spinup run** : Baltic salinity increased after bathymetry changes and now looks similar to CM2 0.25 level.

**GC5 central AMIP experiments** : AMIP experiments using a Met Office GC5 central configuration show a decrease in net TOA radiation compared to GC5 (UM vn12.2 suites u-ct505 and u-du539). Suggests it was missing parameters that caused the increase in CM3. Next will try these parameters in a vn13.5 AMIP run and then CM3.

 ![amip_toa](https://us1.discourse-cdn.com/flex020/uploads/access1/original/2X/a/acf93d542a5921c4e26b0833e3fab3f65b6f834c.png)

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