RC LACE Status Report

1
RC LACE 2005
Regional LAM Co-ordination and
Co-operation of A, CR, CZ, H, SI, SK
Dijana Klaric
2
RC LACE highlights2005

• ? Operations maintenance
• ? Networking
• ? Research development
• ? Plans for 2006-2007

3
Operations maintenance

• all 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 demand
• envelope - no envelope orography
• dyn. adapt blending 3DVar (e-suite)
• maintenance and porting of SW

4
Networking in 2004/2005 (Who? Why? When?)

• AAAA settings and definitions
• Intermediate ALADIN WP for 2005
• Opened subjects
• Cost/efficient of new physics
• Interfacing internal and external
• Data formats
• Mobility of scientist
• ALADIN- HIRLAM Partnership

5
A proposal for planning and supervision of the
HIRLAM-AROME-ALARO common work
Observer
Work plans
6
Scientific Plan 2004/2005

• 4nd RC LACE Steering Committee meeting
• Opened to no-LACE partners
• 2004
• Plans from year 2004 were fulfilled
• 100 person/months
• 2005
• 110 person/months
• to adjust RD to AAAA plans

7
Scientific Plantoward AAAA compatibility

• Dynamics
• NH ALADIN is numerical core
• interfacing dynamics vs. physics is in focus
• Physics
• Fast development
• ALARO prototype as target
• Data Assimilation
• more meso-scale

8
Working Group for Dynamics and Coupling

• ?. Non-hydrostatic dynamics
• Interative schemes
• Choice of additional NH variables
• Bottom boundary condition
• Diabatism in NH
• Vertical discretization in high resolution
• ??. Dynamics other topics
• Horizontal diffusion (SLHD) Documentation
  issued!
• Radiative UBC
• Physics/dynamics interface

9
Results from WG for Dynamics and Coupling

• Interative 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 missing

Stability tests Alphia 2TL SL 3TL
(ICI) Eul ? t 80 sec ? t 40 sec
10
Results from WG for Dynamics and Coupling

• Bottom Boundary Condition tests
• ? Residual problems of ALADIN-NH dynamics on
  resolution (10-100m) - HD Chimney problem
• ? Cure
• To treat exactly the current BBC formulation
• To replace spectral HD by SLHD.

2D Tests Bell shape Exact treatment vis. SLHD

11
Working Group for Physics

• Development is not frozen
• ? AR/AL physics development
• ? ALARO physics
• AROME physics

12
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 AROME
• ?V. Externalized surface- diffusion in ISBA
• V. Validation, case and sensitivity studies

13
Results from WG for Physics

• PBL cloudiness development
• Problem
• Too strong 2m temperature diurnal cycle in winter
  anticyclonic conditions
• Large errors in 2m temperature forecasts.
• Convergence Xu-Randall and Seidl-Kann scheme
• Critical Humidity Profile computation modified
• Lower values for PBL, and ?T/ ? Z

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PBL cloudiness
15
Results from WG for Physics

• AROME Prototype road-map Target - Feb 2006
• Gravity wave drag parmetrization
• Radiation LW and SW
• LS precipitation
• TKE
• Convection
• Shallow non-precipitable convection
• PBL cloudiness
• Interfacing
• Sampling Testing Porting Verification

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Working Group for Data Assimilation
Predictability

• ?. Methods - Algorithmic aspects
• Multivariate humidity formulation in the B matrix
  
• L-H versus NMC variances
• Ensemble B matrix computation
• ??. Observations
• MSG/AMV -Atmospheric Motion Velocities data
• AMDAR data
• Wind profiler data and 10m wind data (SYNOP)
• Radar data

17
Working Group for Data Assimilation
Predictability

• LAMEPS
• ALADIN EPS based on ARPEGE SV perturbations
• Breeding
• ETKF -Ensemble Transformed Kalman Filter
• ALADIN EPS based on the ECMWF EPS system
• EPS post-processing

18
Results from WG for Data Assimilation

• Assimilatin 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
19
Results from WG for Data Assimilation

• Downscalling of ECMWF EPS
• - Meso-scale clustering approach on ECMWF EPS
• - Several clustering parameters W 700 UV 850
  200Q850 700RT1000/500, 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

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(No Transcript)
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EPS clusters 486072ECMWF
ALADIN
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Plans for WG for Data Assimilation

• LACE need for more effort on meso-scale
• DA 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)

23
Plans for 2005-2007 General

• ? Relations with ALADIN 2 project
• new MoU (Nov. 2005)- structured ALADIN
• fresh funds for RD
• ALADIN and LACE share the co-ordination
• mid-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

24
ALADIN 2 models (AAAA)MF plans, status June
2005
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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

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Austria Croatia Czech
Republic Hungary
Slovenia Slovakia
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Verification project

• ALADIN Project organized by Slovenia
• started 2002
• aims
• to unify the verification on synoptic scale
• to impose the international standards
• to reduce duplication of work
• to compare different ALADIN at the same domain
• environment toward meso-scale verification