ALARO10 Status & Plans G. Hello CNRM 14th ALADIN Workshop Innsbruck, 1-4 June 2004.
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Transcript of ALARO10 Status & Plans G. Hello CNRM 14th ALADIN Workshop Innsbruck, 1-4 June 2004.
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ALARO10
Status & Plans
G. Hello CNRM
14th ALADIN Workshop Innsbruck, 1-4 June 2004
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Status & Plans of ALARO10
Why ALARO ? The workplan What has been done Foreseen troubles
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Why ALARO ?
A political choice for the medium term … Process started in Prague April 2003 (=>
ALADIN-2 =AROME Limited Area Decentralized International Network)
A choice between 3 different paths Prague feb 2004 a 3rd model for an
intermediate step
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ComparisonEffort onAladin
onArome
onAlaro
From F. Bouttier AAA meeting
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Why ALARO ?
… leading to a scientific challenge To show the positive impact of a detailed physics
at the regional scale To limit the unavoidable extra cost to reasonable
values To transform a « research-oriented » physics on a
« oper-oriented » oneMain constraints
Reasonable costMax compatibility with AROMESchedule (before AROME .. It is an intermediate step)
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ALARO10 WorkPlan-04
ref name who With sub-projects
a1 Building the prototypeG H, TK, arome people Arome
a2 Evaluation & test G H,T K,? ø
b1 Intermittent radiation schemeJFG, N pristov, GH, YB,MD Alad1,alaro-5
b2 Sub-grid scale orographyJFG, BC, Fby, FW, JC, RM Alad1,alaro-5
b3 Triggering of convectionTH, MB, JMP, TK, LG Alad1,alaro-5
b4 Adaptation to long time step GH,DB,JFG,LG, EB
b5
Performance of the proto in the presence of shallow conv & stratiform clouds ?
A: build & evaluate the prototype
B: optimization of the parametrizations
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What has been done ? A part
Building ALARO10 prototype (a1 of WP04) with the help of Tomislav Kovacic and AROME people (YS, SM & gmme team)
Add the parametrization of the convection (deep & shallow) to the AROME interfaceTest in 1D (GH)Test in 3D academic (TK)Test in 3D real case (GH &TK in progress)
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Tent (T) mnh
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-0,0020 -0,0015 -0,0010 -0,0005 0,0000 0,0005 0,0010
Tent (T) alaro
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-0,002 -0,0015 -0,001 -0,0005 0 0,0005 0,001
Méso-NH ALARO
1D-Prototype
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0
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-5,E-07 -4,E-07 -3,E-07 -2,E-07 -1,E-07 0,E+00 1,E-07 2,E-07 3,E-07
Tent (rv) mnh Tent (rc) mnh Tent (ri) mnh
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-5,E-07 -4,E-07 -3,E-07 -2,E-07 -1,E-07 0,E+00 1,E-07 2,E-07 3,E-07
Tent (rv) alaro Tent (rc) alaro Tent (ri) alaro
1D-Prototype
Méso-NH ALARO
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3D-PrototypeThe Gard case: 2002-09-08
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3D-Prototype
Méso-NH ALARO
Wind and theta at 850 hPa
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3D-Prototype
Ri at 200 hPa (ice clouds)
Méso-NH ALARO
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3D-Prototype
Rv at 500 hPa
Méso-NH ALARO
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What has been done ? B part
Optimization of the parametrizations (b of WP04)
Radiation scheme (JFG, NP,MD, GH & YB)
See session E Wednesday
GWD (many people not a specific ALARO10 work)
See session E Wednesday
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Foreseen troubles
Manpower: a balance to find between AROME « attraction » and ALARO « duty » + avoid dispersion & duplication (ALARO10-ALARO5)
Many work and interesting scientific questions to have a cost effective version which does better than Aladin …and not much time
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Conclusion
Contributors welcome !!!
Open questions & ? do not forget the A-A prototypes
WG this afternoon