- 5-6 September 2024, online, LACE Data Assimilation Working Days
	
- Programme
 - A. Bučánek, A. Trojáková: Data assimilation activities at CHMI
 - A. Stanešić: DA status Croatia
 - H. Tóth, D. Lancz, P. Elek: NWP developments in Hungary in 2024
 - M. Szczęch-Gajewska: DA status in Poland
 - A. Dumitru: Recent work in Data Assimilation
 - B. Strajnar: Data assimilation status and activities in Slovenia - 2024
 - M. Derková: Data assimilation activities@SHMU
 - B. Strajnar: Adaptation to OOPS-3DVar in IAL export cy48t3
 - M. Nestiak: Automated comparison of NIMBUS/OIFS products
 - A. Zajec: Implementation and validation of OI analysis in a coupled ALARO/SURFEX system
 
 - 22-24 September 2021, remote meeting/Ljubljana, Joint 2021 LACE Data Assimilation Working Days and ALADIN Data Assimilation basic kit Working Days
	
- Report of the meeting
 - Programme
 - R. Randriamampianina: Organization of DA area in the new ACCORD consortium
 - A. Trojákova, A. Bučánek: Data assimilation activities at CHMI
 - F. Meier: Status data assimilation in Austria
 - A. Stanešić: Data assimilation status at DHMZ
 - V. Homonnai: Data assimilation work in Hungary
 - A. Dumitru: Data assimilation status in Romania
 - M. Derkova et al.: Data assimilation activities@SHMU
 - B. Strajnar: DA status - Slovenia 2021
 - M. Szczęch-Gajewska, M. Kolonko: DAsKIT status in Poland
 - I. Dehmous: DAsKit progress at RMI (Belgium)
 - F. Hdidou, Z. Sahlaoui: Data Assimilation in Morocco - status and plans
 - M. Monteiro, J. Rio: Portuguese DA progress report
 - W. Khalfaoui, H. Belghrissi: Tunisia Status of Progress
 - Y. Cengiz: Turkish State Meteorological service data assimilation status
 - M. Lindskog: HIRLAM activities on data assimilation and use of observations
 - E. Kurzeneva: Overview of Land Surface DA activities
 - A. Trojákova: Status of the OPLACE system
 - P. Brousseau: B-matrix - general overview and theoretical aspects
 - A. Bučánek: B matrix computation
 - Y. Cengiz: Calculation of B-Matrix at ECMWF with Support of ZAMG and SHMU
 - S. Panežić et al.: Impact of radar reflectivity assimilation
 - P. Smerkol: HOOF - latest developments
 - I. Dehmous: Assimilation of the ground based GNSS in 3DVar AROME
 - H. Toth: Experiments with SEKF in AROME
 - Y. Cengiz: Validation of surface DA
 - B. Strajnar: A short introduction to OOPS version of 3D-Var
 - A. Deckmyn: Node Runner status
 - Video Streams
 
 - 14-16 September 2020, remote meeting/Vienna, Joint 2020 LACE Data Assimilation Working Days and ALADIN Data Assimilation basic kit Working Days
	
- Report of the meeting
 - Programme
 - B. Strajnar et al.: Status of DA in Slovenia
 - M. Derkova et al.: Data assimilation activities@SHMU
 - V. Hommonai et al.: Data assimilation work in Hungary
 - A. Trojákova: Data assimilation activities at CHMI
 - S. Panežić, A. Stanešić: Data assimilation status at DHMZ
 - F. Meier: Status - data assimilation in Austria
 - M. Ait Meziane, G. Chemrouk: Current progress on Data Assimilation in Algeria
 - I. Dehmous: Data assimilation activities at RMI (Belgium)
 - A. Bogatchev et al.: Status of Numerical Weather Prediction with ALADIN in Bulgaria
 - F. Hdidou, Z. Sahlaoui: Data Assimilation in Morocco: Status and plans
 - M. Monteiro et al.: Status report on implementation of ALADIN Data Assimilation systems at IPMA (Portugal)
 - M. Szczech-Gajewska: DA status in Poland
 - H. Belgrhrissi, W. Khalfaoui: DasKIT - Tunisia Status of Progress
 - Y. Cengiz, M. Sezer: AROME-Turkey DAsKIT Activities
 - A. Trojákova: Status of OPLACE system
 - F. Z. Hdidou: Impact of the variational assimilation of ground-based GNSS zenith total delay into ROME-Morocco model
 - B. Strajnar: VarBC spin up and assimilation of Slovenian GNSS ZTD observations
 - Z. Sahlaoui: Improving heavy rainfall forecasts by assimilating surface precipitation in the convective scale model AROME: A case study of the Mediterranean event
 - A. Trojákova: ALARO tests of radar observation operator
 - A. Bučánek: Processing of radar reflectivities in screening
 - K. Čatlošová: Assimilation of radial winds from radars
 - K. Čatlošová: Comparison of Mode-S EHS vs. MRAR
 - K. Szanyi et al.: Investigation of the effect of Hungarian and Czech MODE-S dataset during data assimilation
 - F. Meier: Update on AROME-RUC (ZAMG)
 - S. Schneider, J. Vural: SURFEX/SODA activities at ZAMG
 - H. Tóth and B. Szintai: SEKF Surface data assimilation experiments with cy40 AROME-SURFEX model
 - B. Strajnar and M. Monteiro: LACE DAWD & DAsKIT - Summary of discussions
 - Video streams
 
 - 18-20 September 2019, Prague, Joint LACE Data Assimilation Working Days and ALADIN Data Assimilation basic kit Working Days
	
- Practical information
 - Programme
 - B. Strajnar: LACE DAWD: Summary of discussions, plans for 2020
 - M. Mokhtari, I. Dehmous, M. O. Ait Meziane: Data assimilation activities at ONM (Algeria)
 - B. Tsenova, A. Bogatchev: Status of NWP with ALADIN in Bulgaria
 - B. Bochenek, M. Szczech-Gajewska: DA status in Poland
 - M. Monteiro, J. Rio: Status report on implementation of ALADIN DA systems at IPMA
 - H. Belghrissi: DA progress and plans in Tunisia
 - F. Meier et al.: Statius of data assimilation in Austria
 - S. Panezić, A. Stanešić, E. keresturi: Data assimilation status at DHMZ
 - A. Deckmyn: Data assimilation: experience & plans in Belgium
 - A. Bučanek, A. Trojakova, B. Benaček: Data assimilation activities at CHMI
 - M. Derkova et al.: Data assimilation activities@SHMU
 - B. Strajnar: DA status report 2019 - Slovenia
 - R. Darcy: Status of SAPP at Met Eireann
 - A. Trojakova: Status of OPLACE
 - R. Randriamampianina: Status of HIRLAM upper-air DA activities
 - M. Nestiak: Features of Bator cy46 and cy43
 - V. Švagelj: Dealiasing of radial winds
 - B. Strajnar: Assimialtion of OPERA reflectivity data
 - F. Meier: VARQC under the framework of AROME-RUC
 - A. Bučanek: QC analysis of new observations - part I
 - A. Trojakova: QC analysis of new observations - part II
 - K. Čatlosova: Slovak Mode-S data assimialtion into AROME/SHMU
 - B. Strajnar: Current work on attenuation of microwave links
 - A. Trojakova: OPLACE processing of E-GVAP data
 - A. Varkonyi: Experiments with hourly RUC
 - J. Vural et al.: Assimilation of SCATSAR-SWI with SURFEX
 - V. Tarjani: Offline soil mositure analysiswithin the SURFEX-SODA framework
 - M. Monteiro: Progress on the CORE programme on DA
 
 - 19-21 September 2018,Bucharest, Joint LACE Data Assimilation Working Days and ALADIN Data Assimilation basic kit Working Days
	
- programme
 - report of the meeting
 - Idir Dehmous, Mohand Ouali Ait Meziane: Data assimilation activities at ONM (Algeria)
 - Alex Deckmyn: DAskit progress in Belgium
 - Andrey Bogatchev: Operational setup in NIMH (Bulgaria)
 - M. Szczęch-Gajewska, B. Bochenek: DATA ASSIMILATION activities at IMWM Kraków (Poland)
 - Maria Monteiro: Status report on DA for AROME-PT2 (Portugal)
 - Fatima Hdidou, Zahra Sahlaoui: Data assimilation in Morocco
 - Haythem Belghrissi: Data Assimilation progress and plans in Tunisia
 - Florian Meier et al.: Status data assimilation in Austria
 - Mihály Szűcs et al.: Data assimilation work in Hungary
 - Tomislav Kovačić, Antonio Stanešić: Data assimilation status at DHMZ (Croatia)
 - Antonı́n Bučánek et al.: Data assimilation activities at CHMI (the Czech Republic)
 - M. Nestiak et al.: SHMU - NWP (Slovakia)
 - Simona Tascu: Data assimilation status in Romania
 - Benedikt Strajnar: Status of data assimilation in Slovenia
 - Alena Trojáková: Status of OPLACE system
 - Jasmin Vural, Stefan Schneider: SURFEX activities at ZAMG
 - Roger Randriamampianina: HIRLAM upper-air data assimilation
 - Martin Imrišek: Data assimilation activities with focus on GNSS data
 - Patrik Benáček: Radiance bias correction in the ALADIN-CZ, comparison of different VarBC configurations
 - Florian Meier et al.: Development of a limited area NWP model based nowcasting version for Austria
 - Endi Keresturi et al.: JK blending method in AROME 3D-Var
 - Peter Smerkol, contributed by B. Strajnar, M. Mester: HOOF: Homogenization Of Opera files
 - Michal Nestiak et al.: OPERA ODIM RCLACE RADARS for BATOR cy43T1
 - Wim Verkley, Jan Barkmeijer: Verification of assimilation of radar reflectivity data
 
 - 18-20 September 2017, Ljubljana, Joint LACE Data Assimilation Working Days and HIRLAM Surface Working Week:
	
- programme
 - report of the meeting
 - Florian Meier: Status data assimilation activities in Austria
 - Antonio Stanesic: Data assimilation status at DHMZ
 - Alena Trojakova: Data assimilation activities at CHMI
 - Mate Mile: Data assimilation work in Hungary
 - Michal Nestiak: Status of DA on SHMU 2017
 - Benedikt Strajnar: Status of data assimilation in Slovenia - 2017
 - Mirela Pietrisi: Data assimilation status in Romania
 - Alena Trojakova: Status of OPLACE system
 - Patrick Samuelsson: Status of HIRLAM surface DA activities
 - Camille Birman: Current practice at Météo-France on land data assimilation for NWP
 - Trygve Aspelien: Offline SURFEX forcing and output interface
 - Stefan Schneider: EKF surface assimilation activities at ZAMG
 - Viktor Tarjani: Validation of EKF surface assimilation scheme
 - Roger Randriamampianina: HIRLAM upper-air data assimilation
 - Florian Meier: News on radar assimilation
 - Phillip Scheffknecht: VIEsion: Assimilation of Mode-S data
 - Benedikt Strajnar: First steps towards radar data assimilation at ARSO
 - Anton Zgonc: Radar measurements
 - Patrik Benacek: Latest results of variational bias correction in LAM DA systems
 - Antonin Bucanek: Appropriate B matrix for BlendVAR
 - Mirela Pietrisi: Comparison of NWP based nowcasting (AROME) with classical system
 - Martin Imrisek: Global Navigation Satellite System data processing at near real time
 - Mate Mile: Assimilation of GNSS ZTD in AROME 3DVAR
 - Benedikt Strajnar: Data assimilation of Mode-S EHS observations
 
 - 21 - 23 September 2016, Budapest, Data Assimilation Working Days:
	
- programme
 - report of the meeting
 - Photo1 , Photo2
 - Florian Meier: Status of data assimilation in Austria
 - Antonio Stanesic: Data assimilation status Croatia
 - Antonin Bucanek: Status of data assimilation at CHMI
 - Mate Mile: Data assimilation work in Hungary
 - Michal Nestiak: Data assimilation in SHMU 2016
 - Benedikt Strajnar: Data assimilation in Slovenia 2016
 - Alena Trojakova: OPLACE progress report
 - Roger Randriamampianina: HIRLAM upper-air data assimilation: progress and plan (part1 ,part2 )
 - Benedikt Strajnar: VARBC study using cycled and global coefficients in ALARO/Slovenia
 - Florian Meier: RADAR assimilation in AROME/Nowcasting
 - Viktoria Homonnai: The use of AMDAR humidity and Slovenian Mode-S data in AROME/Hungary
 - Patrik Benacek: Data thinning and error inflation for aircraft and satellites
 - Maria Monteiro: OI_main/Portugal: preliminary scores, questions, problems
 - Stefan Schneider: EKF assimilation at ZAMG
 - Helga Toth: Surface assimilation with EKF and conventional observations
 - Magnus Lindskog: Surface data assimilation activities in the HIRLAM consortium
 
 - 30 September - 02 October 2015, Bratislava, Data Assimilation Working Days:
	
- programme
 - report of the meeting
 - Benedikt Strajnar: Data Assimilation in Slovenia
 - Simona Tascu: Data Assimilation status in Romania
 - Antonio Stanesic: Data Assimilation status Croatia
 - Mate Mile: Data Assimilation activities in Hungary
 - Michal Nestiak: Data Assimilation in SHMU
 - Florian Meier: Status data assimilation in Austria
 - Antonin Bucanek: Status of data assimilation at CHMI
 - Roger Randriamampianina: HIRLAM's status (presentation: Large-scale mixing)
 - Alena Trojakova: Mode-S data assimilation at CHMI
 - Patrik Benacek: Radiance bias correction in LAM ALADIN/Cz
 - Mate Mile: Hourly RUC and OOVAR validation
 - Tomislav Kovacic: Kalman filter based bias removal for global horizontal irradiance forecast
 - Helga Toth: Surface assimilation using EKF method in Hungary
 - Alena Trojakova: OPLACE status report
 
 - 17-18 March 2015, Vienna, 1 hourly RUC Kick-off meeting:
	
- programme
 - report of the meeting
 - Mate Mile: RUC Activities at Hungarian Met Service
 - Benedikt Strajnar: Towards 1h-RUC: Perspectives in Slovenia
 - Michal Nestiak: SHMU, NWP models, nowcasting and Radar Assimilation
 - Jan Barkmeijer: HIRLAM implementations and ideas on RUC/RAP
 - Alena Trojakova: Status and Plans at CHMI
 - Florian Meier: LACE RUC meeting - status in Austria
 
 - 24-26 September 2014, Zagreb, Data Assimilation Working Days:
	
- programme
 - report of the working days
 - Florian Meier: Data Assimilation status in Austria
 - Antonio Stanesic: Data Assimilation status Croatia
 - Benedikt Strajnar: Local data assimilation in Slovenia
 - Michal Nestiak: SHMU DA related activity 2014
 - Mirela Pietrisi: Data Assimilation status in Romania
 - Antonin Bucanek: Status of Data Assimilation at CHMI
 - Mate Mile: Data Assimilation Activities in Hungary
 - Roger Randriamampianina: Report on operational and research activities on observation use
 - Magnus Lindskog: HARMONIE upper-air data assimilation
 - Florian Meier: RADAR data assimilation in Austria
 - Michal Nestiak: RADAR DA related activity 2014
 - Mate Mile: Assimilation of GNSS ZTD observations in AROME Hungary
 - Patrik Benacek: Satellite Data Assimilation in LAM
 - Benedikt Strajnar: Data Assimilation of Mode-S MRAR over Slovenia
 - Antonin Bucanek: Studies with grid-point sigmaB maps and different assimilation setups
 - Alena Trojakova: Report on DM Activity
 - Mate Mile: Status of OOPS project for LACE discussion
 
 - 18-20 September 2013, Vienna, Data Assimilation Working Days:
	
- programme
 - report of the working days
 - Benedikt Strajnar: Local data assimilation in Slovenia
 - Antonio Stanesic: Data Assimilation Status in Croatia
 - Mirela Pietrisi: Data Assimilation Status in Romania
 - Mate Mile: Data Assimilation Activities at OMSZ
 - Florian Meier: Status Report Austria
 - Michal Nestiak: Data Assimilation in Slovakia
 - Alena Trojakova: Status of data assimilation at CHMI
 - Michal Nestiak: LACE RADAR data samples
 - Tomislav Kovacic: RADAR data assimilation in Croatia
 - Mate Mile: AROME RADAR data assimilation
 - Patrik Benacek: Satellite BIAS correction for MSG
 - Xin Yan: GPS/ZTD data assimilation in AROME 3DVAR in Austria
 - Stefan Schneider: Soil moisture assimilation
 - Antonin Bucanek: Dispersion Spectra of 3DVAR with different setups
 - Alena Trojakova: Spatially varying background error variances
 - Florian Meier: Work on grid-point sigmaB maps
 - Mate Mile: Using grid-point sigmaB maps in AROME 3DVAR
 - Mate Mile: What will LACE DA be in 2020?
 - Wei Han: Introduction of GRAPES 3D/4DVAR
 
 - 18-21 June 2012, Prague, Data Assimilation Working Days:
	
- programme
 - report from the meeting
 - Alena Trojakova: Status of data assimilation at CHMU
 - Patrik Benacek: Satellite data assimilation in model ALADIN/CE
 - Xin Yan: Operational setup in Austria and recent developments
 - Antonio Stanesic: Data assimilation status Croatia
 - Maria Derkova: Data assimilation activities SHMU
 - Mate Mile: Data Assimilation activities in Hungary
 - Benedikt Strajnar: Local data assimilation system in Slovenia 2012
 - Tomislav Kovacic: The present status of radar data assimilation in RC LACE
 - Roger Randriamampianina: Report on the 5th WMO observation impact workshop
 - Martin Gronsleth: Assimilation of radar reflectivity data in HARMONIE
 - Martin Gronsleth etal: Quality control of radar data for NWP assimilation using PRORAD and CONRAD
 - Thibaut Montmerle: Radar data assimilation at Meteo France
 - Michal Nestiak: INCA short overview
 - Michal Nestiak: Radar and SAFNWC data APIs in SHMI
 - Maria Derkova: The 2m temperature daytime problem in CANARI surface assimilation
 - Antonio Stanesic: CANARI "summer problem"
 - Claude Fischer - Data assimilation plans at Meteo France
 - Jelena Bojarova: Notes on HARMONIE plans on DA&UO
 - Rafiq Hamdi: Recent activities on surface assimilation using SURFEX in the RMI
 - Tomislav Kovacic & Jure Cedilnik: Surface assimilation
 - Alena Trojakova: IASI data assimilation within RC LACE I
 - Patrik Benacek: IASI data assimilation within RC LACE II
 - Benedikt Strajnar: High-resolution ModeS aircraft observations and its potential for data assimilation
 - Tomislav Kovacic: Consideration of further development of RC LACE data assimilation
 
 - 14-16 June 2011, Budapest, LACE data assimilation working days:
	
- programme
 - report from the meeting
 - Florian Meier: Data Assimilation in Austria I
 - Xin Yan: Data Assimilation in Austria II
 - Patrik Bénácek: The assimilation of AMSU-A radiances in the NWP model ALADIN
 - Alena Trojáková: Status of BlendVar tests with conventional observations
 - Antonio Stanesic: Development of local DA system at DHMZ
 - Gergely Bölöni: Recent DA experiments in Hungary
 - Jan Barkmeijer: Harmonie DA suite at KNMI
 - Mirela Pietrisi: Data Assimilation in Romania
 - Benedikt Strajnar: Data Assimilation progress in Slovenia
 - Magnus Lindskog: Experiences with SMHI local ALARO DA suite
 - Gergely Bölöni: Soil Wetness Index Diagnostics for ALADIN initial conditions
 - Roger Randriamampianina: Revision of AMSU-A, AMSU-B, MHS channel selection for DA
 - Tomislav Kovacic: Preparation of Radar data for assimilation
 - Gergely Bölöni: A case study to demostrate the benefit of data assimilation in ALADIN/HU
 
 
- 28-30 September 2010, Ljubljana, LACE data assimilation working days:
	
- programme
 - Florian Meier, Xin Yan and Stefan Schneider: Data assimilation in Austria
 - Alena Trojáková, Antonin Bucanek, Patrik Benacek: BlendVar-an assimilation system at ALADIN/CE
 - Antonio Stanesic, Tomislav Kovacic, Kristioan Horvath and Stjepan Ivatek-Sahdan: Data assimilation at DHMZ
 - Gergely Bölöni et al.: DA system in Hungary
 - Mirela Niculae: Data assimilation in Romania
 - Michal Nestiak: NWP in Slovakia
 - Benedikt Strajnar and Jure Cedilnik: Local data assimilation system in Slovenia
 - Patrik Benacek: Correction methods of satellite data in NWP model ALADIN
 - Xin Yan: GPS assimilation at ZAMG
 - Roger Randriamampianina: Experiences with satellite assimilation and B sampling in Norway/Sweden
 - Diagnostic comparison of LACE data assimilation systems
 - Conclusions and planning on LACE data assimilation