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 : 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 : (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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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 [6] : the Minutes of the PAC meeting are one of the preparatory documents of the GA. See (...)
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Section : ALADIN annual workshops (joint with HIRLAM ASM from 2007)
WK24: Participants

Table of contents Practical information on (...) Agenda and list of participant On-line presentations of (...) Posters HMG/CSSI meeting On-line registration for (...) List of registered participant

The National Meteorological Administration of Romania will host (...)


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Physiography (under development)
Article published on 14 July 2009
by JFM

ComponentALADINCOSMOHIRLAMUM/JULESECMWF
Orography GTOPO030 database resolution 30” None None None at present, possibly SRTM in future None
Soil types FAO database resolution 10 km : fraction of sand and clay Harmonized World Soil Database (HWSD) None HWSD + STATGO + observations None
Soil depths ECOCLIMAP database resolution 1km. Lookuptable with ecotypes HWSD None HWSD None
Land covers ECOCLIMAP resolution 1km. 255 ecotypes derived from NDVI classification and a set of 12 pure “ecoptypes”. Lookup tables for pure ecotypes and “flux conserving” averages for mixed ecotypes NDVI climatology, NASA/GSFC based on monthly mean data from SeaWiFS resolution 2.5’ None None at present. Possibly POSTEL in future Seasonal cycle of LAI based on ECOCLIMAP or MODIS
Lake properties ECOCLIMAP database resolution 1km + specific lake database (location + depth) Specific lake database (location + depth) from DWD for FLake None None None
Land-sea mask Fractional from ECOCLIMAP database resolution : 250 m over Europe (CORINE) resolution 1km elsewhere None None None None

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