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CHMI status report

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digital filter spectral blending long. cut-off cycle (6h cycle, filtering at ... OI surface analysis based on SYNOP data replacing the surface blending ... – PowerPoint PPT presentation

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Title: CHMI status report


1
CHMIstatus report
2
(No Transcript)
3
ALADIN/CE configuration
  • LACE domain (309x277 grid points,linear
    truncation E159x143, ?x9km)
  • 43 vertical levels, mean orography
  • time step 360 s
  • digital filter spectral blending longcut-off
    cycle (6h cycle, filtering at truncation E47x42,
    no DFI in the next 6h guess integration)
  • digital filter blending incremental DFI
    initialization of short cut-offproduction
    analysis

4
ALADIN/CE configuration
  • 3h coupling interval
  • ARPEGE/ALADIN cycle 28T3
  • 00 and 12 UTC forecast to 54h
  • 06 and 18 UTC forecast to 24h
  • hourly on-line fullpos
  • post-processing of near-surface parameters into
    selected localitiesusing obs-operators of OI

5
Other tools
  • hourly DIAGPACK analysis of T2m, RH2m, v10m,
    KO-index, CAPE, MOCON (SYNOP observations)
  • verification package based on cycle AL12 (AL28
    in validation)
  • monitoring of SYNOP and TEMP observation based
    on OI quality control

6
Computational facilities
7
Mediterranean Forecasting SystemToward
Environmental Predictions
  • NEW DOMAIN
  • 589x309 grid points ? 256x200 grid points
  • 299x159 linear truncation ? 127x99 linear
    truncation
  • 9.5 km resolution
  • 37 levels

8
Future plans and planned changes
OI surface analysis based on SYNOP data replacing
the surface blending
Interactive computation of mixing length based on
PBL diagnostics after Ayotte and Tudor
temperature RMSE
relative humidity RMSE
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