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High Resolution Numerical Weather Prediction Project
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August 21st 2018 : new edition of the ALADIN-HIRLAM Newsletter
The ALADIN/HIRLAM Newsletter n° 11 was published on August 21st, 2018

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The PAC and PAC-HAC meeting took place in Dublin on 22-23 May 2018. The main point at the agenda of these meetings was the review of the progress of the convergence roadmap and the preparation of a "scope document" as requested by the GA-C at their last meeting (the PMs and the PAC-HAC were tasked to reflect on the scope of the future single consortium, to identify the core areas of collaboration at the start of the single consortium .., to develop a vision and mission and to identify core values, ...). See the minutes of these meetings.

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The joint 28th ALADIN Wk & HIRLAM ASM 2018 was held mid-April on the premises of Météo-France in Toulouse.

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28th Wk&ASM 2018 : speakers
  • 4 full days (16-19 April) for the opening session, the thematic sessions, the posters session, some Working Group discussions, the LTM meeting, an official dinner and a public conference,
  • 20 April 2018 : HMG/CSSI meeting (whole day), for HMG/CSSI members only.

The agenda, the presentations - pdf files and videos of the sessions, the posters ... are on-line, the minutes of the LTM meeting and of the HMG/CSSI meeting are also on-line.

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28th Wk&ASM 2018 : PMs at the closing session

This joint Wk/ASM obtained the label "EuroScience Open Forum 2018 - TOULOUSE, EUROPEAN CITY OF SCIENCE".

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Just published !

Termonia, P., Fischer, C., Bazile, E., Bouyssel, F., Brožková, R., Bénard, P., Bochenek, B., Degrauwe, D., Derková, M., El Khatib, R., Hamdi, R., Mašek, J., Pottier, P., Pristov, N., Seity, Y., Smolíková, P., Španiel, O., Tudor, M., Wang, Y., Wittmann, C., and Joly, A.: The ALADIN System and its canonical model configurations AROME CY41T1 and ALARO CY40T1, Geosci. Model Dev., 11, 257-281, https://doi.org/10.5194/gmd-11-257-2018, 2018.

The purpose of this paper is (i) to define the ALADIN System in relation to the global counterparts IFS and ARPEGE, (ii) to explain the notion of the CMCs, (iii) to document their most recent versions, and (iv) to illustrate the process of the validation and the porting of these configurations to the operational forecast suites of the partner institutes of the ALADIN consortium.


see also ALADIN-HIRLAM : Newsletter n°11 published on August 21st, 2018


Follow-up of the GA and GA/C :
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Regular 22nd General Assembly and 3rd joint ALADIN GA and HIRLAM Council

The ALADIN GA and the HIRLAM Council met in the Polish NMS premises in Krakow (Poland) on November 21-22, 2017 : the 22nd ALADIN GA, then the LACE Council and the HIRLAM Council in parallel, then the 3rd joint ALADIN GA - HIRLAM C meeting.

  • Besides the usual items on their agendas, the assemblies approved the Rolling Work Plan 2018 (and its completely renewed format), and committed the resources of their NMS to realised it : the HAC/PAC was asked to further discuss its scope and to follow its realisation.
  • The convergence roadmap (towards a single ALADIN/HIRLAM consortium after 2020) was debated and guidelines for the next steps were given to the PMs and the HAC/PAC.
  • Due to lack of time, the "Tour d’ALADIN" could not be presented : the slides are on-line : these 2017 highlights sent by the LTMs will be detailed in the ALADIN-HIRLAM Newsletter n°10, to be published end of January 2018.
  • The ALADIN budget for 2018 was approved, with a new position (20%F.T.E for a DA coordinator) : the position is opened.
  • A new matrix of the ALADIN consortium was approved after changes in some positions.


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 8 January 2018
dernière modification le 1 March 2018
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 (...)

Article published on 9 January 2018
Section : Software and applications
Article published on 31 January 2018
dernière modification le 21 August 2018
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 the NL N°12, due in January 2019 Please, do use the proposed templates when preparing the (...)
Article published on 4 April 2018
dernière modification le 5 April 2018
Section : Governance
ALADIN Partners map

The governance and the management of the ALADIN Consortium is defined by the 5th MoU and by the 22ndt General Assembly at the end of 2017 (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 5 April 2018
dernière modification le 6 April 2018
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). A new version was prepared in April 2018 when Algeria NMS changed their logo.

In order to keep it update, the Local Team Managers should make sure to let (...)

Article published on 15 April 2018
dernière modification le 14 June 2018
Section : ALADIN annual workshops (joint with HIRLAM ASM from 2007)
28<sup class=th Wk&ASM 2018 : speakers" title="28th Wk&ASM 2018 : speakers" />
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 April 2018, 08:30-20:00 : opening session, DA session, Posters session and LTM meeting, icebreaker 17 April 2018, 08:30-19:00 : Physics and Dynamics (...)
Article published on 16 April 2018
dernière modification le 21 August 2018
Section : About the aladin websites
28<sup class=th Wk&ASM 2018 : speakers" title="28th Wk&ASM 2018 : speakers" />
The PAC and PAC-HAC meeting took place in Dublin on 22-23 May 2018. The main point at the agenda of these meetings was the review of the progress of the convergence roadmap and the preparation of a "scope document" as requested by the GA-C at their last meeting (the PMs and the PAC-HAC were (...)
Article published on 4 May 2018
Section : ALADIN Local Team Managers (LTM) meetings
LTM meetingDatePlaceMinutes 26th LTM meeting 2 April 2019 Madrid, Spain (besides ALADIN workshop) 25th LTM meeting 2 October 2018 Salzbourg, Austria (besides EWGLAM/SRNWP meetings) 24th LTM meeting 16 April 2018 Toulouse, France (besides ALADIN (...)
Article published on 9 May 2018
dernière modification le 25 September 2018
Section : Scientific plans and reports

DA coordinator position.

The 22nd ALADIN General Assembly approved the creation of a 20% DA coordinator position in ALADIN to assist the ALADIN PM and the CSSI : with the coordination of the ALADIN DA starter countries with their DA activities; with the coordination of the basic kit DA core (...)

Article published on 21 August 2018
Section : About the aladin websites
The ALADIN/HIRLAM Newsletter n° 11 was published on August 21st, 2018
Article published on 25 September 2018
Section : Software codes
History (reverse order) of the ALADIN cycles ALADIN cycle [4] with memorandum [5]available inMajor modifications introduced in the cyclebased on ARPEGE cyclePhasing team AL46T1 autumn 2018 see the plans prepared for the 25th LTM meeting CY46T1 Douba, Spaniel, Tsenova AL46 first quarter 2018 (...)









Assimilation and analysis (under development)
Article published on 11 July 2009
by JFM by

Model parametersALADINCOSMOHIRLAMUM/JULESECMWF
Soil temperature and water content Extended Kalman Filter (EKF) for conventional and satellite observations. Offline mode First guess T2m and Q2m from open land/snow only (excluding forest) Addition of ASCAT data.
Longer term plan is to develop an EKF scheme that uses screen observations and satellite data
Extended Kalman Filter (EKF) for use of conventional (soil moisture and brightness temperatures). Offline mode
Sea surface temperature Optimal interpolation using surface observations and satellite SST products (OSTIA) None
Sea-ice extent None None
Sea-ice temperature None Implementation of bulk thermodynamic sea ice model presently applied operationally in GME None
Sea-ice concentration None None
Snow depth Optimal interpolation using surface observations + satellite MSG swno cover mask Major revision of snow within COSMO project COLOBOC at Meteo-Swiss. Modifications in calculation of rho_snow, T_snow, additional use of snow observations in the Alpine region Longer term plans to include SYNOPs and satellite SWE in snow depth analysis
Lake None None
Vegetation Kalman filter for surface albedo analysis from LandSAF products More frequent updates, possibly using LandSAF data. Longer term plan to assimilate LAI within EKF scheme MODIS assimilation in a simplified 2D-Var

News

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

operala++at++meteo.fr

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 (...)

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