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COST Action 733 - Meeting of the WG3 - Barcelona, 22-23.02.2008 Department of Meteorology Eötvös Loránd University Budapest, Hungary Rita Pongrácz, András Reisz, Judit Bartholy SUBJECTIVE SYNOPTIC EVALUATION OF THE CIRCULATION CLASSIFICATIONS FOCUSING ON HUNGARY
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COST Action 733 - Meeting of the WG3 - Barcelona, 22-23.02.2008 Outline Two sub-domains (07, 10) contain Hungary entirely Selection of circulation classifications Evaluation
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COST Action 733 - Meeting of the WG3 - Barcelona, 22-23.02.2008 Selection of circulation classifications for evaluation WSD (within-type standard deviation) - low EV (explained variation) - high basis: year MSLP, 2mT, LSP, CP both subsectors 07 and 10
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COST Action 733 - Meeting of the WG3 - Barcelona, 22-23.02.2008 Selected circulation classifications for evaluation Sandra (23 / 19 types) CA, t-mode PCA, simulated annealing, using SLP CEC (4×10 types) CA – seasons separately, AT-500 & AT-1000 ESLPC10 (10 types) similarity index for SLP LWT2 (26 types) flow direction and vorticity, using SLP (improved Jenkinson-Collision system) WLKC733 (40 types) using wind, AT-925, AT-500, wetness Péczely (subjective, 13 types – only for the Carpathian basin), SLP
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COST Action 733 - Meeting of the WG3 - Barcelona, 22-23.02.2008 Synoptic evaluation of circulation classifications Missing / Odd / Frequency Sandra: NNN - YNN (2 and 1) CEC: NNY - YYN (3 and 0) ESLPC10: NYN - YNN (1) LWT2: NNN - YNN (2 and 1) WLKC733: NNN - NNN (2) Péczely: NNY (3)
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COST Action 733 - Meeting of the WG3 - Barcelona, 22-23.02.2008 Synoptic evaluation of circulation classifications Missing patterns? winter blocking, stable local cold mass above the Carpathian basin Odd patterns? relates to isobar density (western and eastern part of the domain differ too much) Frequency? on annual or seasonal basis? Difference between sub-domains 07 and 10
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