Dijana Klarić

RC LACE 27th EWGLAM Meeting 3-5 October 2005, Ljubljana

RC LACE highlights2005 Operations & maintenance Networking Research & development Plans for 2006-2007


Operations & maintenanceall 6 members - individual operational applications almost the same domains mesh size (x 12.2km - x 6.5 km)vertical resolutions (L37 - L45)00 and 12 UTC runs per day 06 and 18 UTC runs on demandenvelope - no envelope orographydyn. adapt; blending; 3DVar (e-suite)

maintenance and porting of SW


Networking in 2004/2005 (Who? Why? When?)AAAA settings and definitionsIntermediate ALADIN WP for 2005Opened subjectsCost/efficient of new physics Interfacing internal and externalData formats

Mobility of scientistALADIN- HIRLAM Partnership


A proposal for planning and supervision of the HIRLAM-AROME-ALARO common workWork plansObserver


Scientific Plan 2004/20054nd RC LACE Steering Committee meetingOpened to no-LACE partners2004Plans from year 2004 were fulfilled100 person/months 2005110 person/monthsto adjust R&D to AAAA plans


Scientific Plantoward AAAA compatibilityDynamicsNH ALADIN is numerical coreinterfacing dynamics vs. physics is in focusPhysicsFast development ALARO prototype as targetData Assimilationmore meso-scale


Working Group for Dynamics and Coupling. Non-hydrostatic dynamicsInterative schemesChoice of additional NH variablesBottom boundary conditionDiabatism in NHVertical discretization in high resolution . Dynamics other topicsHorizontal diffusion (SLHD) Documentation issued!Radiative UBCPhysics/dynamics interface


Results from WG for Dynamics and CouplingInterative scheme (overview) 2TL SL P/C (ICI) scheme has been developed 3TL Eulerian scheme is phased into the CY29T2 test with DFI (to do: SHLD tests ) 3TL semi-Lagrangian part is still missingStability tests: Alphia2TL SL 3TL (ICI) Eul t 80 sec t 40 sec


Results from WG for Dynamics and CouplingBottom Boundary Condition tests Residual problems of ALADIN-NH dynamics on resolution (10-100m) - HD Chimney problem Cure:To treat exactly the current BBC formulationTo replace spectral HD by SLHD. 2D Tests: Bell shape

Exact treatment vis. SLHD


Working Group for PhysicsDevelopment is not frozen AR/AL physics development ALARO physicsAROME physics


Working Group for Physics. PBL cloudiness (Xu-Randall &Seidl-Kann ). Prognostic cloud water II. Param. schemes, diagnostic tools - 1D TKE prognostic - radiation scheme - convection scheme - DDH diagnostics for ALARO and AROMEV. Externalized surface- diffusion in ISBAV. Validation, case and sensitivity studies


Results from WG for PhysicsPBL cloudiness developmentProblem:Too strong 2m temperature diurnal cycle in winter anticyclonic conditions; Large errors in 2m temperature forecasts.Convergence Xu-Randall and Seidl-Kann schemeCritical Humidity Profile computation modified Lower values for PBL, and T/ Z


PBL cloudiness


Results from WG for PhysicsAROME Prototype road-map: Target - Feb 2006Gravity wave drag parmetrization Radiation LW and SWLS precipitationTKEConvectionShallow non-precipitable convectionPBL cloudinessInterfacing Sampling; Testing; Porting; Verification


Working Group for Data Assimilation & Predictability. Methods - Algorithmic aspectsMultivariate humidity formulation in the B matrix L-H versus NMC variances Ensemble B matrix computation . ObservationsMSG/AMV -Atmospheric Motion Velocities dataAMDAR dataWind profiler data and 10m wind data (SYNOP)Radar data


Working Group for Data Assimilation & PredictabilityLAMEPSALADIN EPS based on ARPEGE SV perturbationsBreedingETKF -Ensemble Transformed Kalman FilterALADIN EPS based on the ECMWF EPS systemEPS post-processing


Results from WG for Data AssimilationAssimilatin of 10m wind data from SYNOP - to improve surface wind assimilation over land- to see the impact of black-lists on asimilation

Set-up, surface wind just from SYNOPs:- ALADIN 3D Var Hu, LACE domain, 12km- envelope orography

Results:- mostly neutral - black list QC could be replaced by screening 10m RMS orog. vis. real alt


Results from WG for Data AssimilationDownscalling of ECMWF EPS- Meso-scale clustering approach on ECMWF EPS- Several clustering parameters W 700: UV 850 200;Q850 700;RT1000/500, T850,500- Representatives of clusters as LBC for ALADIN- Set of coupling files from ECMWF EPS /3h freq- ALADIN +5 D forecast- Tests on meso-scale severe weather events


EPS clusters +48;60;72ECMWF ALADIN


Plans for WG for Data AssimilationLACE need for more effort on meso-scaleDA at MS (teams, HW, SW, data)

Workshop On Code Maintenance and Data Assimilation(14-18 November, 2005 Budapest, Hungary)ALADIN Meso-scale Predictability Workshop (Jan/Feb/Mar 2006, ?LACE)


Plans for 2005-2007 General Relations with ALADIN 2 projectnew MoU (Nov. 2005)- structured ALADIN fresh funds for R&D ALADIN and LACE share the co-ordinationmid-term WP (2005-2007) Active in ALADIN-HIRLAM co-operation AROME prototype at MS (spring 2006) Toward AROME model (2008)1st AROME WS 21-25 November 2005, Romania


ALADIN 2 models (AAAA)MF plans, status June 2005


Plans for 2005-2007(LACE)5th LSC, September 2005: Better coordination and more funds for predictability (proposed 4th WG) Proposed extension of current MoU (2006-2007) RC LACE Independent Review in 2006 toward the new goals and structure


Austria Croatia Czech Republic

Hungary Slovenia Slovakia


Verification projectALADIN Project organized by Sloveniastarted 2002aims:to unify the verification on synoptic scaleto impose the international standardsto reduce duplication of workto compare different ALADIN at the same domainenvironment toward meso-scale verification


RC LACE Status Report25th EWGLAM MeetingRC LACE Status Report25th EWGLAM MeetingRC LACE Status Report

longer reliability tests and investigations were performed quite safe as backup, but still needed25th EWGLAM MeetingRC LACE Status ReportAAA Plans

NH ALADIN is core of AAA =OK3D VAR is smmothly25th EWGLAM MeetingRC LACE Status Report25th EWGLAM MeetingRC LACE Status Report25th EWGLAM MeetingRC LACE Status Report25th EWGLAM MeetingRC LACE Status Report25th EWGLAM MeetingRC LACE Status ReportPBL cloudiness- Improve the ALADIN forecast of low stratus. Seidl-Kann scheme but a few open questions still need to be clarified. Methods: Test if a strongly reduced horizontal T diffusion (found important for a good stratus forecast in basins and valleys) can be used operationally 25th EWGLAM MeetingRC LACE Status Report25th EWGLAM MeetingRC LACE Status ReportEarlier saturation

25th EWGLAM MeetingRC LACE Status Report25th EWGLAM MeetingRC LACE Status Report3 projectsContinuation of work in 2004Hungary is the main center with live ALADIN 3D Var application

Lonnberg-Holiingsworth method

Observations: A lot of technical work on ODB25th EWGLAM MeetingRC LACE Status ReportHu and Au and Cr are developing the some applications based on the different methodsHU developed the tools for the diagnostic porting of SW is possible 25th EWGLAM MeetingRC LACE Status ReportImportan due to many AMS and lack of data over land (satellite data are not used)surface wind from TEMP was switched offNext research with higher model version and non-envelope orography25th EWGLAM MeetingRC LACE Status ReportPerformed at Hu And HrCROATIA: Target domain LACE, target time of clustering is +48h Several clustering parameters W 700: UV 850 200;Q850 700;RT1000/500, T850,500 25th EWGLAM MeetingRC LACE Status Report14 of November 2004- Severe Bura event N part of Adriatic see (but also at West Mediterranean)Fig 1: Automatic station: 35m/s average wind, 55 m/s wind gusts Fig2: ECMWF T511 (48;60;72)Fig3: ECMWF analysis

25th EWGLAM MeetingRC LACE Status Report14 of November 2004- Severe Bura event N part of Adriatic see (but also at West Mediterenian)

25th EWGLAM MeetingRC LACE Status ReportToward the meso-scale verificationto 25th EWGLAM Meeting

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Dijana Klarić