The new version of the  LAM-EPS run by DMI was implemented.The first affected runs in TIGGE-LAM archive are on 2018-05-22. The major changes:

• new ensemble system based on the convection permitting HARMONIE-AROME model

• outputs up to +42h

• 1 less parameter for TIGGE-LAM archive as the large scale precipitation does not exist any more in the the convection permitting system

• 2 newly provided parameters for TIGGE-LAM archive CAPE and CIN

The new set-up of COSMO model ("COSMO-D2") replaces the former COSMO-DE.  Methods of EPS member generation has not changed. The major changes:

• grid spacing reduced from 2.8 km to 2.2 km
• number of vertical levels increased from 50 to 65 with higher resolution in the boundary layer
• model domain enlarged, mainly to the west

The updated description is available here.

Following major changes apply to COSMO-DE-EPS update:

• the use of four global models via BCEPS for initial and boundary conditions is switched off
• initial conditions are provided by analysis members of an Local Ensemble Transform Kalman Filter
• boundary conditions are provided by members of ICON-EPS (40 km grid size with a two-way nested grid of 20 km over Europe)
• additional parameters of physics packages are perturbed
• selection out of a set of predefined parameter perturbations is randomized (selection performed for each forecast start)
• stochastic perturbations of SST and soil-moisture on specific spatial scales

The model description is available here.

The updated description is available here.

• ENS boundary conditions used instead of PEARP ones
• new 2 meter diagnostics improving 2 meter temperature forecast

The updated description is available here.

The global model GME has been replaced by the new global model ICON. This change affects the COSMO-DE-EPS  because four global models (including ICON, GME before) are used to perturbat IC and BC (dynamically downscaled with BC-EPS). The updated description is available here.