ALADIN
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

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 for the ECMWF Council next December 3 – 4, 2014, ALADIN and HIRLAM consortia will organise some internal (...)


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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
The governance and the management of the ALADIN Consortium is defined by the 4th MoU and by the 18th General Assembly in 2013 (see also history of chair persons) : General Assembly Chairperson : Abdalah Mokssit (Ma), elected in November 2013 Vice-Chairperson : Martin Benko (Sk), elected in (...)
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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 [4] : the Minutes of the PAC meeting are one of the preparatory documents of the GA. See (...)
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Section : Documentation on cycles and coordination meetings
memorandum of Common cycle 41, July 2014 memorandum of IFS cycle 40R3, July 2014 memorandum of ARPEGE cycle 40T1, April 2014 memorandum of IFS cycle 40R2, March 2014 memorandum of IFS cycle 40R1, August 2013 memorandum of Common cycle 40, July 2013 memorandum of IFS cycle 39R1, July 2013 (...)
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Section : ALADIN annual workshops (joint with HIRLAM ASM from 2007)
WK24: Participants
The National Meteorological Administration of Romania will host the 24th ALADIN workshop / HIRLAM All-Staff Meeting 2014 (07-10 April 2014) and HMG/CSSI meeting (11 April 2014), in Bucharest. Practical information on the local organiser webpage WK24: Participants Agenda and list of (...)
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Section : Internal contacts
List of ALADIN Directors or usual representatives to the General Assembly, updated on August 21, 2014 COUNTRYNMSFORENAMEFAMILY NAMEEMAIL ALGERIA ONM Brahim IHADADENE b.ihadadene@meteo.dz AUSTRIA ZAMG Michael STAUDINGER michael.staudinger@zamg.ac.at with copy to wang@zamg.ac.at BELGIUM RMI (...)
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Section : Documentation on cycles and coordination meetings
IFS/ARPEGE coordination meeting, Reading, June 15, 2015 IFS/ARPEGE coordination video-conf, February ??, 2015 (date to be discussed later) Minutes of IFS/ARPEGE coordination video-conf, November 13, 2014 Minutes of IFS/ARPEGE coordination meeting, Toulouse, June 2, 2014 Minutes of IFS/ARPEGE (...)
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Section : OOPS
Technical video-conference : meeting number 2 towards CY42: : October 16, 2014 Technical video-conference : meeting number 1 towards CY42 : : August 26, 2014 OOPS Steering Committee : June 3, 2014 in Toulouse Technical video-conference : meeting number 7 towards CY41 : May 13, 2014 Technical (...)
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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 commun newsletter, twice a year. NewsletterEditoDownload N°4, due in March 2015 N°3, published on 26-09-2014 The third edition of the combined Newsletter of the HIRLAM and ALADIN (...)
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Section : ALADIN People : who, where, how to contact

When planning your next visit to Toulouse/CNRM/GMAP, please pay attention to French public holidays and Meteo-France closing days (RTTi) !..

From January 1st, 2014, for security reasons, the access to GMAP offices is only allowed between 7:00 and 21:00 on working days. On Saturdays and on (...)


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Section : ALADIN People : who, where, how to contact
Here are a few information for future or present visitors in Toulouse : Useful links : Public transport : Schedules of the Toulouse buses About Toulouse (official page of "Mairie de Toulouse") How to reach Météo-France http://www.meteo.fr/cic/meetings/venue.html Computer resources : for computer (...)
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2nd Meeting of the Expert Team on Surface Processes, Zürich, 15 September 2010
Article published on 29 September 2010
by JFM

A second meeting of the Expert Team on surface processes took place during the last EMS conference in Zürich and was kindly hosted by Meteo Swiss, thanks to Jean-Marie Bettems. The first part was devoted to the description on the database of in-situ measurements for local validation of NWP land surface schemes. This activity which is part of the COLOBOC project of the COSMO consortium has been endorsed by SRNWP in order to make the data available to our community. The second part was devoted to presentations on the current activities of each consortium on surface processes.

Minutes of the meeting devoted to the discussion about the SRNWP Data Pool (written by J.-M. Bettems)

An important conclusion of the meeting was to encourage SRNWP consortia to make use of the dataset for validation studies. This action is important if we want this database to be maintained and enriched with more recent data. All members of SRNWP can register on the following web site and then download the available data :

SRNWP COSMO COLOBOC Database of surface observations

The presentations given during the meeting are available below :

Downloads Files to download:
  • SRNWP_ET_overview
  • File size 78.9 kb
  • File type : PDF
  • ALADIN_MF_Report
  • File size 72.5 kb
  • File type : PDF
  • ALADIN_ZAMG_Report
  • File size 1.3 Mb
  • File type : PDF
  • COLOBOC_Report
  • File size 1.9 Mb
  • File type : PDF
  • COSMO_Report
  • File size 1.8 Mb
  • File type : PDF
  • ECMWF_Report
  • File size 5.2 Mb
  • File type : PDF
  • HIRLAM_AEMET_Report
  • File size 436.3 kb
  • File type : PDF
  • HIRLAM_KNMI_Report
  • File size 899.7 kb
  • File type : PDF
  • UKMO_Report
  • File size 536.3 kb
  • File type : PDF
  • GLASS_Panel_Seattle_24Aug2010_Reichle_PILDAS
  • File size 225.3 kb
  • File type : PDF
  • Minutes_Datapool_201009
  • File size 13.5 kb
  • File type : PDF

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