ALARO-1 Working days 2019

SHMI, Bratislava, Slovakia, 11-13 March 2019


Programme , List of participants


Photo (original): one , two

Synthetic Report and Plan



  Piet Termonia: Introduction
  Neva Pristov: Introduction to Working Days and short overview of last 2,5 years

  Ján Mašek: ACRANEB2 - current status and plan
  Ján Mašek: 3D radiation - why, when and how?


Turbulence-Diffusion TOUCANS
  Ivan Bašták Ďurán: A two-energies turbulence scheme
  Radmila Brožková: Shallow convection closure using mass-flux type approach
  Mario Hrastinski: TKE-based mixing length in TOUCANS
  Peter Smerkol: TOUCANS: Issues with computations in TOMs


Precipitations aspects (microphysics)
  Bogdan Bochanek: Prognostic graupel in ALARO


  Radmila Brožková, Ján Mašek: Cloudiness: status, unification attempts and perspectives
  Luc Gerard: Cloud reunification in the CSD context


Deep convection: complementary subgrid drafts; stochastic components
  Luc Gerard: Status overview of the CSD adaptive convection scheme


  Martina Tudor: The quality of physiography data in clim files
  Ján Mašek: New roughness treatment in ISBA scheme
  Martin Dian: ALARO-1 with SURFEX - current status and plan
  Ján Mašek(Rafiq Hamdi): ALARO-1 with SURFEX - some interfacing issues


High resolution
  Petra Smoliková: NH dynamics at high resolution - setup and results
  Radmila Brožková: ALARO at high resolution - setup and results

  Martin Belluš: Uncertainty simulation in ALADIN-LAEF
  Geert Smet: ALARO performance in the prototype convection-permitting RMI-EPS
  Michiel Van Ginderachter: A new methodology for physics perturbations
  Pau Escriba: ALARO in the Spanish AEMET-gSREPS (video conference)


  Piet Termonia: ALARO climate and the project

ALARO status:
  Daan Degrauwe: ALARO experience in Belgium
  Martina Tudor: ALARO experience in Croatia
  Radmila Brožková: ALARO experience in Czech Republic
  Piotr Sekula: ALARO experience in Poland
  Maria Derková: ALARO experience in Slovakia
  Neva Pristov: ALARO experience in Slovenia
  Duygu Aktas: ALARO experience in Turkey


Annoucement (December 2018)

The purpose is to present ALARO-1 developments, plans, xchange experience and spread knowledge about the ALARO to a wider ALADIN/LACE/HIRLAM community.

About the scope of the working days:

  • share the experience on ALARO-1vA|B validation, operational use
  • present latest developments TOUCANS (shallow convection, mixing lenght), clouds, microphysics, ...
  • link with SURFEX
  • further validation, tuning and scope of ALARO-1
  • moving to higher resolutions
  • discuss about plans


Starting Monday (11 March) morning, closing Wednesday (13 March) around noon.


Tentative program:

  •  Generalities
    •     introduction, an overview
    •     evaluation of ALARO-1vA|B (local experiences, reporting the current implementations, ...)
    •     physics-dynamics interface: redesign of physics interfaces
    •     coupling with SURFEX
    •     ALARO performance in climate simulations, EPS systems
    •     moving to higher resolutions,
    •     quality of physiography data in climat files
  •  ALARO-1 overview of current developments
    •     TOUCANS: shallow convection, mixing lenght computation
    •     radiation: a current state and prospects
    •     precipitations aspects  (prognostic graupl)
    •     presentation of clouds
    •     deep convection: complementary subgrid drafts
  •  Discussion
    •     current status, open questions/problems
    •     recommended/possible resolutions, GCM tests, MUSC testbed, climate, load/benefits
    •     set-up of the next versions
    •     future issues (microphysics, ...)

Three parts will be roughly split over three days, with some flexibility.



Slovak Hydrometeorological Institute (SHMU), Jeseniova 17, Bratislava, Slovakia



We propose Hotel Tatra (Námestie 1.mája 5), that is directly connected with SHMU by public transport.
Discount price has been negotiated with the hotel: 65€ for double room, 59€ for single room including breakfast. Link for booking is, with a promo code "SHMU". There is no particular deadline for hotel booking - till they have rooms available.


Practical information


In case of no suitable flight to Bratislava, the access via Vienna airport is commonly used. From the Schwechat airport there are regular and frequent buses to Bratislava available. More details including information on local public transport in Bratislava will be given in February.



Lunch will be organized in the SHMU canteen (3 options to choose) with the fixed price of 4 EUR/lunch, payable in cash on the spot. Contact local organizers ( for any special dietary requirements.



Please, confirm your participation to Maria ( and Neva ( before 20 February 2019.
Contact them for any question.