High Resolution Numerical Weather Prediction Project
Website of the ALADIN Consortium

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.

20 years later, as defined in the 4th 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 pluging 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.

Section : (General) Assembly of ALADIN Partners
GA18 : Participants

Table of contents Draft Minutes of the 18th (...) Participants of the 18th (...) Agenda with on-line presentati GA18 : Participants

The NMS of Tunisia hosted the 18th regular General Assembly in Tunis, on 14-15 November 2013. Draft Minutes of the 18th (...)

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Section : ALADIN People : who, where, how to contact

For a personal connection to PARME or a team access to IAA (BDPE, BDAP, BDM or BDCLIM), please fill the request form (French version or English version).

In case of a new request, please fill also one of the undertaking forms (French version or English version).

For PARME access, the (...)

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Section : ALADIN annual workshops (joint with HIRLAM ASM from 2007)
The Danish NMS will host the joint 25th ALADIN Wk & HIRLAM 2015 ASM and the besides meetings : Wk and ASM on 13-16 April 2015, HMG-CSSI meeting on 17 April 2015, LTM meeting on 14 April.
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Section : EWGLAM/SRNWP meetings and workshops
List of European Working Group on Limited Area Modelling and Short Range Numerical Weather Prediction network [1] meetings YearDatesEWGLAM meetingSRNW meetingWhereCountryWebsite [2] 1979 8-11 October 1st Norrköping Sweden 1980 7-10 October 2nd Dublin Ireland 1981 24-27 August 3th (...)
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Section : EWGLAM/SRNWP meetings and workshops

The 36th European Working Group on Limited Area Modelling (EWGLAM) and 21st Short Range Numerical Weather Prediction (SRNWP)meetings which will be held in Offenbach from

29th September to 2nd October 2014.

This meeting will include: Presentations by the main modelling consortia and ECMWF, (...)

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Section : ALADIN Local Team Managers (LTM) meetings
LTM meetingDatePlaceMinutes 18th LTM meeting 14 April 2015 Copenhagen, Danemark (besides ALADIN workshop) 17th LTM meeting 30 September 2014 Offenbach, Germany (besides EWGLAM/SRNWP meetings) 16th LTM meeting 7 April 2014 Bucarest, Romania (besides ALADIN (...)
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Section : OOPS
IFS/OOPS video-conference : August 26, 2014 OOPS Steering Committee : June 3, 2014 in Toulouse Technical video-conference : May 13, 2014 Technical video-conference : meeting number 6 towards CY41 : February 20, 2014 Technical video-conference : meeting number 5 towards CY41 : January 27, 2014 (...)
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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 [3] : the Minutes of the PAC meeting are one of the preparatory documents of the GA. See (...)
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Section : (General) Assembly of ALADIN Partners

Table of contents General Assemblies of ALADIN Assemblies of ALADIN Partners General Assemblies of ALADIN Partners

Since the 3rd MoU (November 2005), the governance of the ALADIN project is under the responsibility of the General Assembly.

In 2014, for the (...)

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Section : (General) Assembly of ALADIN Partners

Table of contents 19th ALADIN General Assembly 1st joint ALADIN General (...)

For the first time, the ALADIN General Assembly and the HIRLAM Council will held a joint meeting.

Taking advantage of the opportunity of many of their Directors gathering in Reading (...)

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Section : Workshops and 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 (...)

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Section : Governance

Table of contents General Assembly Program Manager, full-time Policy Advisory Committee ALADIN Local Teams Managers CSSI : Committee for Scientifi Support Team Task forces

The governance and the management of the ALADIN Consortium is defined by the 4th MoU and (...)

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RFR: Reseau Formation Recherche
Article published on 27 August 2008
by Patricia

The aim of the so-called action "Réseau Formation Recherche" was to help the student from different countries of Central and Eastern Europe to perform their research at Météo-France/CNRM/GMAP with the final goal to reach the PhD degree.

  • The first "Réseau Formation Recherche" supported the funding of the PhD studies between November 1992 and December 1995. These studies, besides their theoretic and scientific contents, have induced very important concrete outcomes for the use of ALADIN. These four studies contributed to ALADIN model, but in a quite independent way from one another.
    • Radmila Bubnova worked on "Use of the Hydrostatic Pressure Coordinate for Integration of the Elastic Model of the Atmospheric Dynamics in the Framework of the Numerical Weather Prediction System ARPEGE/ALADIN", this is important for the use of ALADIN below 10 Km resolution and to maintain the compatibility with a Hydrostatic operational model.
    • Mihaela Caian compared two solutions for fine scale modelling ("Variable Mesh or Limited Area Model : Which Solution to Choose for the Forecast on the Fine Scale") and justified the ALADIN development for fine scale modelling by determining the limit of applicability of the stretching, method used operationally in ARPEGE.
    • Elena Cordoneanu : "Study of the Thermal Circulations above the Carpathian-Black Sea Area by Using the Model ALADIN"; she demonstrated the ability of ALADIN to reproduce breeze effects and verified the consistency of its response.
    • Andras Horanyi performed some "Sensitivity Studies"; at this occasion, he developed the adjoint and tangent linear parts of ALADIN (adiabatic part) and used it for sensitivity studies such as detection of critical areas (amplification of frontal waves).
  • On February 1996, the French Ministry of "Education Nationale, Enseignement Supérieur et Recherche" accepted another "Réseau Formation Recherche"; it consisted in financing five new PhD studies, more lonked together. A final report has been prepared for the Ministery in February 1999 by Prof. Joze Rakovec (external co-ordinator of the Réseau).
    • Doina Banciu (Romania) : Specific Small Scale Diabatic Forcing in ALADIN at the Limit of the Hydrostatic Assumption,
    • Marta Janiskova (Slovakia) : Realization of a Simplified Physical Parametrization for Incremental Four-dimensional Data Assimilation,
    • Mark Zagar (Slovenia) : Forecasting of the High Resolution Wind and Precipitations with Dynamic Adaptation,
    • Filip Vana (Czech Rep.) : The Dynamical and Physical Control of Kinetic Energy Spectra in a NWP Spectral semi-Lagrangian Model,
    • Ilian Gospodinov (Bulgaria) : Conservation Properties of 2 Time Level semi-Lagrangian.
Downloads File to download:
  • Rapport 2nd RFR
  • File size 128.7 kb
  • File type : PDF


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