ALADIN, HIRLAM or HARMONIE Working Weeks

After the success of the 1st D-Day (Toulouse, 2016), the ALADIN and HIRLAM dynamics people met in Toulouse on 28 May 2019. Agenda and presentations Ludovic Auger : Day’s objective and agenda Fabrice Voitus : Equations : new formulations and stabilities Pierre Bénard : a Future for the global model ? Petra Smolikova & Jozef Vivoda: On going activities around dynamics in LACE Daan Degrauwe : A non-spectral solver for the ALADIN-NH dynamics Thomas Burgot : What can we expect from grid (…)

After the strategy meeting in Toulouse (26-28 April 2016) it was decided to write an ALADIN-HIRLAM core program on dynamics, continuing the past road map. Agenda First part : Presentations Fabrice Voitus : A semi-implicit NH quasi-elastic soundproof mass-based dynamical system for NWP applications Pascal Marquet : Equations derived from the First principle only Charles Colavolpe : The †Horizontally Explicit and Vertically Implicit†time scheme applied on the fully compressible (…)

The ALADIN DA basic kit Working Days took place in Lisbon at the IPMA premises, on 22-23 March 2017. Agenda and presentations General session I Background and scope of the meeting : Core program on Data Assimilation : Piet Termonia General introduction to DA : DA vocabulary Overview of LACE Data Assimilation systems : Mate Mile Overview of Data Assimilation at Météo-France : Claude Fischer Data Assimilation experiences and plans by Partners DA at NIMH - experience, plans : Andrey (…)

Following the November 2015 Cloud Working Week hosted by SMHI in Norköping for the ALADIN-HIRLAM consortium, a Cloud Working Week was organized by Meteo-France in January 2017 in Toulouse. It took place at the Météopole Centre International de Conférences from Monday 16th January to Wednesday 18th January Find below the program and the presentations : Monday 16 January : 9:40-10:00 : Eric Bazile, Yann Seity, Lisa Bengtsson & Wim de Rooy : What can we expect from MUSC after (…)

During the 2014 forecasters meeting, it was concluded that: “Forecasters need guidance to interpret high-resolution model output. This was a recurring problem during the discussions and emphasized by several forecasters. This related to the intrinsic stochastic nature of clouds and microphysics processes. It was also concluded that the human eye is not capable of interpreting a weather map in a probabilistic sense; i.e. it is not possible to interpret spatial variation in forecast (…)

ProgrammeReportPresentations Piet Termonia: The ALADIN consortium: goals and work practices Neva Pristov: The physics of the model(ALARO) Claude Fischer: AROME France Christoph Zingerle: Model verification and tools Alex Deckmyn: The GLAMEPS system Florian Weidle: The LAEF system Piet Termonia: The end user enquiry Christoph Zingerle: Forecast experience in Austria Pieter De Meutter: Forecast experience in Belgium Lovro Kalin: Forecast experience in Croatia Tomas Mejstrik: Forecast (…)

Since MoU4, the ALADIN budget is used for working weeks (organisation and attendance funding) and, after the GA gave its approval in 2013, to send ALADIN people also to HIRLAM WW. Below is the list of these WWs, with links to reports or outcomes when available. Code training September 9-12(13), 2019, Toulouse (Fr): Training on code developments and validation (testing) Dynamics May 28, 2019, Toulouse (Fr): ALADIN-HIRLAM DYnamics Day (D-day) November 25, 2016, Toulouse (Fr): (…)

Context During the workshop on “Parameterization of stable boundary layer in numerical weather prediction models†organized in Finnish Meteorological Institute (FMI), Helsinki, 3-5 December 2012, (http://netfam.fmi.fi/Stable12/), it was decided to organize working days to identify and solve main issues for implementing “Energy- & flux-budget (EFB) closure†in AROME/HARMONIE turbulence schemes. Participants (with affiliation, participation days) Sergej Zilitinkevich (FMI, (…)

A verification meeting took place in Bruxelles on 27-29 March, 2012. Participants A. Deckmyn (Be), N. Pristov (Si), J. Rio (Pt), P. Termonia (Be), C. Zingerle (Au), M. Turkmen (Tk) Background One of the five short-term ALADIN actions concerns the issue to launch an effort to “define†our users and to coordinate a project on addressing the user requirements. This is related to the problem of the verification of our models and in reality can be split in three complementary tasks: (…)

Participants: Bernard Chapnik, Nils Gustafsson, Magnus Lindskog and Ole Vignes with support from other Meteo-France staff members (Claude Fischer, Francois Bouttier, Loïk Berre, et al.) Main topics (see Nils’s report of the working week) Review of the status of the ALADIN 4D-Var from an algorithmic point of view ALADIN 4D-Var schematics A plan for the continued work to develop HARMONIE 4D-Var Other issues