Versions Compared

Old Version 35

changes.mady.by.user Richard Mladek

Saved on

compared with

New Version 36

changes.mady.by.user Richard Mladek

Saved on

Key

  • This line was added.
  • This line was removed.
  • Formatting was changed.

...

UKMO

Info
iconfalse
title04-05-2022 MetOffice

The Met Office Global model was upgraded to OS45 with effect from the 12UTC cycle on 5 May 2022.

  • The Global Atmosphere-Land Model is now fully coupled to a ¼ degree interactive Ocean Model in both 10km deterministic and 20km MOGREPS-G ensemble configurations, with both the atmospheric and ocean models exchanging information hourly.
  • The atmosphere-land model has been upgraded from GA7.2.1GL8 to GA8GL9.
  • New observations have been introduced from radiosonde descents, Sentinel, Aeolus and Mode-S in Europe.


Info
iconfalse
title04-12-2019 MetOffice

UM upgraded to version PS43 for the 12UTC cycle on 4 December 2019.

The PS43 upgrade to the Met Office global modelling capability introduces a new data assimilation system to the global ensemble and a significant upgrade to the global model physics. MOGREPS-G is now driven by an ensemble of analyses, each with its own data assimilation cycle (En-4D-en-VAR), replacing the original ETKF (Ensemble Transform Kalman Filter) method. The result is a more sophisticated ensemble with increased spread and stability.

The global model physics is upgraded to the GA7.2 configuration which is focused on improvements to physical processes. This has several significant benefits including improvements to 250hPa winds, 850hPa tropical winds and temperatures and improved tracks of Tropical Cyclones. The UM is upgraded to UM11.2.

...