High Resolution Numerical Weather Prediction Project
Website of the ALADIN Consortium

 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.

  After the 13rd PAC meeting and the 4th joint HAC/PAC meetings, Brussels, May 23

 After the Joint ALADIN/HIRLAM strategy meeting,Toulouse, April 26-28

 After the 26th ALADIN Wk & HIRLAM 2016 ASM

  • ALADIN 25th anniversary was celebrated during the icebreaker.
  • Articles around presentations and posters

 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 25 April 2016
dernière modification le 26 April 2016
Section : Scientific Management Meetings

The ALADIN Committee for Scientific and System/maintenance Issues (CSSI) and Support Team (ST) members meet at least once a year.

A coordination meeting with HIRLAM Management Group (MG) takes place in spring besides the annual joined ALADIN workshop & HIRLAM All Staff Meeting; another (...)

Article published on 9 May 2016
Section : History
During the icebreaker at the joint 26th ALADIN Wk & HIRLAM ASM 2016 in Lisbon (4-7 April 2016), the ALADIN 25th Anniversary was celebrated. Piet recalled some main steps and achievements of the ALADIN consortium throughout all these years and insisted of the ALADIN spirit that lead so many (...)
by JAM , Eric
Article published on 3 June 2016
Section : Stay reports
ZSEBEHAZI G.: SENSITIVITY STUDY FOR SZEGED, HUNGARY USING THE SURFEX/TEB SCHEME COUPLED TO ALAROBENAMARA M.: Premier essai d’Optimisation du code srtm (courte longueur d’onde) dans ARPEGE dans le cycle 41t1_op1Khalfaoui W.: Évaluation des modifications sur la Microphysique de AROMEBochenek B.: (...)
Article published on 9 June 2016
Section : ALADIN annual workshops (joint with HIRLAM ASM from 2007)

The joint 28th ALADIN Wk & HIRLAM ASM 2018 will be held on the premises of Météo-France in Toulouse during the third week of April 2018 :

16-19 April :joint Wk& ASM,

20 April : HMG/CSSI meeting.

Some side meetings will also take place during that week, as well as the usual (...)

Article published on 16 June 2016
dernière modification le 8 November 2016
Section : (General) Assembly of ALADIN Partners
The National Met Services of the ALADIN, HIRLAM and LACE consortia will take the opportunity of many of their Directors gathering in Darmstadt for the EUMETSAT Council next December to organise the general assembly and councils : the LACE Council on December 7 afternoon the HIRLAM Council (...)
Article published on 31 July 2016
dernière modification le 1 August 2016
Section : Policy Advisory Committee (PAC) and "Bureau" meetings
Group photo of the 1<sup class=st Joint HAC/PAC" title="Group photo of the 1st Joint HAC/PAC" />
Since the 3rd MoU (November 2005), the governance of the ALADIN project is under the responsability of the General Assembly (GA) who designs the Policy Advisory Committee (PAC). The PAC meets before each GA [1] : the Minutes of the PAC meeting are one of the preparatory documents of the GA. See (...)
Article published on 9 August 2016
dernière modification le 10 August 2016
Section : PhD thesis
J-P Chaboureau, C. Fischer, M. Mokhtari and B. Hamadache (from right to left); P. Tulet (behind)
PhD Thesis completed in the framework of the ALADIN project (excepted those on RFR or ALATNET supports) Name Title of the thesis Date of defense University Vanja BLAZICA Divergence in limited area models for numerical weather prediction 27 September 2013, Ljubljana (Slovenia) Ljubljana (...)
Article published on 31 August 2016
dernière modification le 1 September 2016
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°8, due in January 2017 Please, do use the proposed templates when preparing the contributions ! (...)
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
Section : ALADIN, HIRLAM or HARMONIE Working Weeks

An ALADIN-HIRLAM Cloud workshop will be organized in Toulouse from Monday 16 January 2017 at 09:00 to Wednesday 18 January 2017 at 13:00.

The main topic of the workshop will be to discuss and to exchange about the problem of the low cloud forecast and fog. Presentations on case studies, 1D (...)

by Eric
Article published on 18 October 2016
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 (...)

History of the governance : 1991-2016
Article published on 21 July 2008
by Patricia by

The organisation of the ALADIN project changes according to the evolution of the project (see also the history of the project).

 1991 - 1995 : gestation

  • From September 1991 until end of 1995, the work on ALADIN centered around visits to Toulouse of scientists of all partners, their ALADIN-related work at home being mostly conditioned by the tasks they had been performing in Toulouse. The number of hours of work shared in Toulouse with colleagues of all origins allowed a homogeneous and united team to be formed.
  • The main difficulty of the set-up was the financing of the travel and visits. Generally speaking, travel was provided by the partners and the grants for the stays were funded by Météo-France or by French ministries or raised in competitive applications by either all partners or by Météo-France and one partner for bilateral support or directly financed by partners.

 1996 - 2001 : decentralization and formalization through the 1st MoU

  • With the transition to multiple operational status thanks to a "standard open" code, the situation changed. The manpower involved in the development of ALADIN has kept increasing and covers now not only centralized actions of research and source code maintenance in Toulouse but also deported work in NMS, related to the implementation of local versions of ALADIN, the exploitation of the model outputs, the verification of forecasts and local research developments.
  • The necessary formalization of the project before its decentralization was completed by the signing of a first Memorandum of Understanding by all partners. It layed down he principles observed by ALADIN since the beginning, the choice of software, conditions of its use by the partners and of membership of, admission to, and withdrawal from the ALADIN "club".
  • The 10-years ALADIN anniversary was celebrated in Paris on May 31st, 2001 and a booklet was printed.

 2001 - 2005 : 2nd MoU with enlarged definition of the ALADIN partnership, guidelines for the commercial use, creation of a Technical Cooperation Standing Committee

  • A second ALADIN Memorandum of Understanding was signed on May 31st 2001 with mainly:
    • an enlarged definition of the ALADIN partnership, with three levels of "rights versus duties" : Full Member, Associated Member, User;
    • more precise guidelines for the commercial use of ALADIN products;
    • stricter rules for the registration of the manpower dedicated to ALADIN;
    • creation of a Technical Cooperation Standing Committee (TCSC) of for members (Météo-France, a LACE representative, a SELAM representative, a representative of the other partners), in charge of the routine project coordination. This TCSC was replaced by a 6 permanent members working group "Science and Strategy Committee" during the Assembly in Casablanca (2002) : the purpose of this old SSI was to supervise priorities and co-operation with other SRNWP groups, to follow AROME project and to report to the Assembly on progress of the scientific plan.

 end of 2005 : the 3rd MoU defines the new organisation

  • the governance and the management are adapted: General Assembly (with its Chairperson and Vice-Chairperson), Program Manager, Policy Advisory Committee, ALADIN Local Teams Managers, Program Team, Committee for Scientific and System/maintenance Issues, System/maintenance and Scientific Coordinators, Support Team
  • the MoU defines more precisely the relationships between governing bodies with a proposed way of circulating information, request and decision between GA, PAC, PM and Directors on one hand, in consistency with HIRLAM and with ECMWF

 end of 2010 : the 4th MoU defines the organisation for 2011-2015

  • The evolution of the content from MoU3 is mainly a better balancing within the management entities (LTMs more active in planning and reporting, CSSI more involved in applications) and the harmonisation with HIRLAM, including the possibility to temporarily and jointly active “task-forces”.

 beginning of 2016 : the 5th MoU defines the current organisation

The differences from the 4th MoU concern :

  • the introduction of the notion of Canonical Model Configurations (i.e. AROME or ALARO)
  • the new half-time ALADIN funded position for a Code Architect
  • the increase of the flat-rate ceiling to take into account the CA funded position
  • some changes in the article 11 about "Ownership, avalability and use of ALADIN products". the ALADIN-HIRLAM cooperation agreement was removed from the MoU text and remains as a stand alone document that is to be renewed and signed with HIRLAM consortium.


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 March 11, 2016)

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

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

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at random

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