SAM cluster workshop, 20 – 21 Feb 2019 – UPDATED

UPDATE: see here for additional details including the workshop program.

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SAM cluster workshop

When: 20 – 21 February 2019

Where: Hobart
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Hi all,

As you know we are keen to have a workshop in February of this group and after many discussions with people at the workshop and various others we have decided to hold it in Hobart from Wednesday February 20 – Thursday February 21. This overlaps with a sea-ice modelling workshop being held on Tuesday February 19, with the idea that the Wednesday morning will be a joint session between the two on SAM/sea-ice topics then lead into other ‘SAM’ topics from Wednesday afternoon through to Thursday. We will end the workshop early enough on Thursday afternoon so that everyone should be able to travel home that evening.

Given one of our main goals for the ‘SAM cluster’ is to bring together the atmos-ocean-ice communities interested in the SH extratropics, this will be a great opportunity to bring us together with sea-ice modellers.

Apologies for those for which these dates and venues don’t suit. We will try our best to ensure that video-conferencing is available for those who would like to join remotely. So for now, save the dates and I’ll put together a more detailed workshop announcement in the coming days.

Cheers
Julie, Matt, Andy and Nerilie

Sea-ice workshop, 19-20 Feb 2019 – UPDATED

UPDATE: see here for additional details including the workshop program.

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Sea-Ice Modelling Workshop

When: 19-20 Feb 2019 – UPDATED

Where: ACE CRC, Hobart, Tasmania
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The purpose of this workshop is to bring together the (Australian) community interested in sea-ice modelling and related aspects. This includes modelling efforts under the COSIMA and/or ACCESS initiatives, sea-ice assimilation or forecasting, sea-ice model parameterizations as well as process related modelling studies, such as ice-floe distribution, turbulence in sea-ice drift or wave-ice interaction. There will be discussion on requirements for observational data for model verification and assimilation.

We note that this workshop has been scheduled to coincide with the visit of Dr Elizabeth Hunke from the Los Alamos National Laboratory, USA. Elizabeth has been the lead developer for the Los Alamos Sea Ice Model (CICE), and is now heading the CICE Consortium in sea-ice model development.

We invite contributions for oral or poster presentation covering the following aspects with focus on sea-ice modelling:

• stand-alone and coupled sea-ice modellings;
• sea-ice processes and feedbacks;
• observational and/or model studies of sea-ice trends and variability;
• observations for models (incl. verification);
• data assimilation and forecasting;
• predictability; and
• user needs.

Pls reply to me by 15 Dec 2018, if you are interested to attend. — Pls note that the SAM cluster workshop will be held right after the sea-ice workshop. We plan to hold a joint session on Wed (20 Feb) morning.

Also, if you cannot travel to Hobart, but would like to participate via remote access, pls let me know too.

With best wishes,
Petra Heil

_____________________________________________________________________
Dr. Petra Heil
AAD and ACE CRC – Glaciology
University of Tasmania
Private Bag 80
Hobart, Tasmania 7001
Australia
email: Petra.Heil”at”utas.edu.au
phone: ++ 61 – 3 – 6232 3124

COSIMA Update

Over the last day we have completed initial spinup runs of the ACCESS-OM2 model.
The model has been run at 3 different resolutions, as listed below:

ACCESS-OM2 = [MOM5.1 + CICE5.1 + OASIS3-MCT + YATM + JRA55v13-do]

ACCESS-OM2:

  • 1° resolution, 50 levels
  • 252 cores
  • 48 yrs/day – 160 SU/yr
  • 5 InterAnnual Forcing (IAF) cycles complete
  • Numerous Repeat Year Forcing (RYF) cases

ACCESS-OM2-025:

  • 0.25° resolution, 50 (KDS) levels
  • 1824 cores
  • 16 yrs/day – 2800 SU/yr
  • 5 IAF cycles complete
  • Additional IAF and RYF cases run

ACCESS-OM2-01:

  • 0.1° resolution, 75 (KDS) levels
  • 5744 cores
  • 2.2 yrs/day – 63 kSU/yr (provided dt=600 sec)
  • Minimal config with 2064 cores, ~1 yr/day
  • 40-year RYF spinup with variable parameters, tweaks, date fixes during spinup.
  • Single IAF run from 1985 to 2017

For a full recount of today’s COSIMA meeting presentation, see the COSIMA Update slides.