High Resolution Numerical Weather Prediction Project
Website of the ALADIN Consortium

 General Assembly and new ALADIN-HIRLAM cooperation agreement

The regular 21st ALADIN General Assembly and the 2nd joint ALADIN GA and HIRLAM Council took place in Darmstadt (Germany) on December 8, 2016 : follow up of the 2014 ALADIN-HIRLAM declaration, strategy, activity reports (including a big Tour d’ALADIN), budget, manpower and governance issues ... the agendas and the presentations can be found on the dedicated article.

Martin Benko (Slovakia) was elected chairperson of the ALADIN General Assembly and Anne Debar (France) replaces Martin as vice-chairperson. Some changes in PAC representatives and LTM were also announced (see the current governance and new matrix).

The new ALADIN-HIRLAM cooperation agreement was signed by the chairpersons of the ALADIN General Assembly and the HIRLAM Council.

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ALADIN-HIRLAM cooperation agreement signing by M. Benko and M. Thyrring (with the Program Managers, P. Termonia and J. Onvlee, and P. Bougeault from MF)
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Participants at the 21st ALADIN GA

 ALADIN flyers

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ALADIN leaflet : page 1
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ALADIN leaflet : page 2 (CZ)
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ALADIN leaflet : page 2 (FR)
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ALADIN leaflet : page 2 (HR)

After the request of the ALADIN General Assembly, some leaflets (flyers) were prepared. The first page is common to all Partners and the 2nd page can be personalized for each Partner. Click on the above pictures or download the pdf versions.

 The Newsletter No. 7 for an Happy Anniversary !

The 7th edition of the combined Newsletter of the HIRLAM and ALADIN consortia was published on September 1st, 2016. Besides some articles around the presentations/posters at the last Wk/ASM (April 4-8, 2016, Lisbon), a special focus is given on recent Doctors, on some articles recently published.
As the ALADIN adventure concretely began on September 1991, we take the opportunity of this anniversary to think back and share some ALADIN stories.

 Soon to come

The concept of the ALADIN project was proposed by Météo-France in 1990, with the aim of building a mutually beneficial collaboration with the National Meteorological Services of Central and Eastern Europe. This collaboration was to be in the field of Numerical Weather Prediction (NWP), which provides the basis for the forecasting tools of modern meteorology. The easy to translate acronym (Aire Limitée Adaptation dynamique Développement InterNational) clearly indicates the major axes of this project at its beginnings.

25 years later, as defined in the 5th Memorandum of Understanding,

The goal of the ALADIN Collaboration is to improve the value of the meteorological, hydrological and environmental warning and forecast services delivered by all Members to their users, through the operational implementation of a NWP system capable of resolving horizontal scales from the meso-beta to the meso-gamma scale and improving the prediction of severe weather phenomena such as heavy precipitation, intensive convection and strong winds.

This objective will be fulfilled through continuation and expansion of the activities of the ALADIN Consortium in the field of High Resolution Short Range Weather Forecast, including:

  • Maintenance of an ALADIN System (...);
  • Joint research and development activities, on the basis of the common Strategic Plan and related Work Plans, with the aim of maintaining the ALADIN System at scientific and technical state of the art level within the NWP community;
  • Sharing scientific results, numerical codes, operational environments, related expertise and know-how, as necessary for all ALADIN Consortium members to conduct operational and research activities with the same tools.

About one hundred scientists, from sixteen countries, each with its own specificity in resources and knowledge base, are permanently contributing to the progress of ALADIN NWP system. They are working together on a modern code of the atmosphere that definitely deserves its proper place between the European state-of-the-art NWP models: 80 Full-Time Equivalent persons in the last years of the project’s life. This code is now operated every day in fifteen Euro-Mediterranean countries, on a huge variety of computing platforms ranging from a PC Cluster under Linux to Vector Computers.

ALADIN consortium had a number of unique successes in the past : for instance, the plugging of an existing physics parameterization in the existing code, leading to the AROME model; ALADIN is at the forefront of the gray-zone problematics with the ALARO physics; ALADIN dynamical core is remarkably stable; ...

ALADIN also allowed to build a high-level scientific team, distributed in sixteen countries that managed to reach the level of the best research centres, as witnessed by the PhD theses and publications in international journals. The General Assembly of Partners, the workshops, the meetings, the newsletters regularly offer opportunity of various exchanges within the ALADIN community.

ALADIN is preparing for the serious evolutions expected within the NWP landscape in the coming five to ten years. There is the ever-lasting question where to draw the line between resolved vs. parameterized processes. There is the question of the efficiency and the scalability of ALADIN dynamical core. There are the external drivers, such as the demands of the end users, and the evolution of the high-performance computing machines. Additionally a serious reorganization of the code is now at hand, in particular within the OOPS project. Besides that, the international meteorological context is steadily changing, specifically with the merger of the ALADIN and the HIRLAM consortia.

Article published on 11 October 2016
Section : On-line registrations

List of participants to the 27th ALADIN Wk & 2017 HIRLAM ASM

Back to the main page of the 27th Wk & 2017 ASM Back to the registration page

Article published on 11 October 2016
dernière modification le 13 October 2016
Section : On-line registrations
Registration Form : Application Deadline: 15th February, 2017 Consult the list of participants Back to the main page of the 27th Wk & 2017 ASM
Article published on 11 October 2016
dernière modification le 20 January 2017
Section : ALADIN, HIRLAM or HARMONIE Working Weeks
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 (...)
Article published on 12 December 2016
Section : (General) Assembly of ALADIN Partners
On the kind invitation of the IMGW, and as agreed at the 2nd joint ALADIN-HIRLAM meeting the ALADIN GA and the HIRLAM Council will meet in Cracow (Poland) : on Tuesday 21 November 2017 morning for the 22nd ALADIN GA on Tuesday 21 November 2017 afternoon for the LACE Council and the HIRLAM (...)
Article published on 14 December 2016
dernière modification le 15 December 2016
Section : About the aladin websites

General Assembly and new ALADIN-HIRLAM cooperation agreement

The regular 21st ALADIN General Assembly and the 2nd joint ALADIN GA and HIRLAM Council took place in Darmstadt (Germany) on December 8, 2016 : follow up of the 2014 ALADIN-HIRLAM declaration, strategy, activity reports (including a (...)

Article published on 14 December 2016
dernière modification le 15 December 2016
Section : Governance
ALADIN Partners map

The governance and the management of the ALADIN Consortium is defined by the 5th MoU and by the 21st General Assembly at the end of 2016 (see also history of chair persons).

Please consult the complete MoU5 document for details.

For a quick view : the Members map the matrix schematically (...)

Article published on 14 December 2016
Section : COMM
ALADIN leaflet : page 1

After the request of the ALADIN General Assembly, some leaflets (flyers) were prepared. The first page is common to all Partners and the 2nd page can be personalized for each Partner.

Below are the leaflets prepared for Croatia, Czech Republic and France. Other leaflets are on-going. (...)

Article published on 14 December 2016
Section : COMM

This template is proposed for the ALADIN presentations. It was first used at the 21st ALADIN GA (see for instance the Tour d’ALADIN).

In order to keep it update, the Local Team Managers should make sure to let Patricia know about any changes in the name or logo of their (...)

Article published on 4 January 2017
Section : Visitors in Toulouse
A first list of the 2017 visitors in Toulouse is given below. Please consult the offices table for phone number and office number of the 2017 visitors. NAMECOUNTRYSTARTENDSubjectMENTOR FAROUK IMANE MOROCCO 01/11/15 01/10/18 Vers une meilleure assimilation des radiances nuageuses dans le (...)
by Eric
Article published on 26 January 2017
Section : Stay reports
SATOURI A.: Phasing report COOPMANN O. Amélioration des analyses météorologiques par l’assimilation de mesures infrarouges satellitaires sensibles à l’ozone (M2) MOKHTARI M. et AMBAR A.: Updating and validation of Arome_dust (French version, English version) BENAMARA M.: Expériences avec (...)
Article published on 30 January 2017
dernière modification le 31 January 2017
Section : Software and applications
Vertical levels used in operational systems and their standard atmosphere heights

(updated on January 20, 2017)

Within ALADIN and HIRLAM Consortia, the ALADIN, ALARO or AROME configurations run operationally on a wide range of computers, from single workstations to vectorial computers in shared or distributed memory, and on a cluster of workstations under Linux. 46 (...)

Article published on 31 January 2017
Section : Newsletters
ALADIN-HIRLAM Newsletter : number 2
During the HMG/CSSI meeting in April 2013, ALADIN and HIRLAM consortia decided to join their effort and produce a common newsletter, twice a year. NewsletterEditoClick on the picture to download N°9, due in July 2017 Please, do use the proposed templates when preparing the contributions ! (...)

First stage outline proposal
Article published on 19 January 2005
by Patricia by

The outline proposal as submitted in the first stage proposal (form B)

1. List of Partners

2. Short description of the STORMNET project

STORMNET (Scientific Training for Operations and Research in a Meteorological NETwork) aims at building a European training network for local short-range high-resolution numerical weather prediction and its applications.

European meteorological services now have to face the challenge of a quick march towards very high resolution applications for limited-area modelling and short-range prediction. Beside the research work specific to numerical weather prediction (NWP), the increased complexity of equations and the huge amount of data to handle at a reasonable cost will raise new problems in numerics and code organisation. The positive feedback on downstream applications like hydrology or air-pollution modelling will have to be checked too. As experts are spread among many small teams, an enhanced transfer of knowledge through training actions is needed.

3. Short Range Numerical Weather Prediction in Europe

Today’s NWP models have reached a degree of complexity that makes it difficult for any country, even a large one, to develop and test with its own resources all the modules of a leading edge numerical model for the high-resolution simulation of the atmospheric processes, inclusive of the difficult determination of adequate initial conditions from the observations and consideration of computing cost. One the other side, European NWP teams are usually small, around 7 persons on average, but down to 3 in some countries. As a consequence, several groups of national weather services (NWS) have gathered together, to share the development work and further maintenance of 4 world-class limited-area models, used operationally for weather forecasting at horizontal scales in the range 5-15 km.

These 4 groups, or consortia, are:

  • the ALADIN consortium, including the weather services of Austria, Belgium, Bulgaria, Croatia, Czech Republic, France, Hungary, Moldova, Morocco, Southern Poland, Portugal, Romania, Slovakia, Slovenia, Tunisia, who built and use the ALADIN model;
  • the COSMO consortium, including the weather services of Germany, Greece, Italy, Northern Poland, Switzerland, who built and use the LM model;
  • the HIRLAM consortium, including the weather services of Denmark, Finland, Iceland, Ireland, The Netherlands, Norway, Spain, Sweden, who built and use the HIRLAM model;
  • the NWS of the United Kingdom of Great Britain, who takes care alone of the UM model.

Each group has its own identity and specific work relation between partners, but in all cases a quite efficient networking has been established over the years.

At a higher level, on a European scale, cooperation between NWP teams started 26 years ago, via the informal EWGLAM (European working group on limited-area modelling) network, reinforced 10 years ago with the creation of the SRNWP (short-range numerical weather prediction) programme to foster exchanges. Within these networks, around 3 scientific meetings are organized each year, on the general progress or specific scientific issues of short-range high-resolution NWP. SRNWP in its present form has proven its usefulness, but attempts to go further in exchanges at this level were not as successful as expected. There is still significant effort required to establish a very close cooperation between NWS, in practice between consortia, while preserving decentralization, which is mandatory for local operational applications.

4. Research Program

5. Training Program

Full B form document :

PDF - 80.5 kb
Outline proposal


Informations for Toulouse visitors
Here are a few information for future or present visitors in Toulouse : (...)
operala mailing list

This list has been created in order to keep in touch (...)

Operational configurations

(updated on January 20, 2017)

Within ALADIN and HIRLAM Consortia, the (...)

Joint ALADIN-HIRLAM Newsletters
During the HMG/CSSI meeting in April 2013, ALADIN and HIRLAM consortia (...)

Some photos
at random

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