Department of Meteorology Department of Meteorology Eötvös Loránd University Eötvös Loránd University Budapest, Hungary Budapest, Hungary Judit Bartholy, Rita Pongrácz Judit Bartholy, Rita Pongrácz SUBJECTIVE SYNOPTIC SUBJECTIVE SYNOPTIC CLASSIFICATIONS: CLASSIFICATIONS: HESS-BREZOWSKY HESS-BREZOWSKY „GROSSWETTERLAGEN”, „GROSSWETTERLAGEN”, PÉCZELY CLASSIFICATION PÉCZELY CLASSIFICATION
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Department of Meteorology Eötvös Loránd University Budapest, Hungary Judit Bartholy, Rita Pongrácz SUBJECTIVE SYNOPTIC CLASSIFICATIONS: HESS-BREZOWSKY.
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Department of MeteorologyDepartment of MeteorologyEötvös Loránd UniversityEötvös Loránd University
Budapest, HungaryBudapest, Hungary
Department of MeteorologyDepartment of MeteorologyEötvös Loránd UniversityEötvös Loránd University
Meridional, northern types(1) Cold front with meridional flow (mCc)(2) Anticyclone over the British Isles (AB) (3) Cold front arising from a Mediterranean cyclone (CMc)
Meridional, southern types(4) Warm front arising from a meridional cyclone (mCw) (5) Anticyclone located east of the Carpathian Basin (Ae) (6) Warm front arising from a Mediterranean cyclone (CMw)
Zonal, western types(7) Zonal cyclone (zC) (8) Anticyclone located west of the Carpathian Basin (Aw) (9) Anticyclone located south of the Carpathian Basin (As)
Zonal, eastern types(10) Anticyclone located north of the Carpathian Basin (An) (11) Anticyclone located over the Scandinavian Peninsula (AF)
Central types(12) Anticyclone located over the Carpathian Basin (A) (13) Cyclone located above the Carpathian Basin (C)
Typical sea-level pressure maps of the Péczely MCP typesSubjective classification using 13 types
Definition: Gy. Péczely - 1957
Cyclonic (mCc, CMc, mCw, CMw, zC, C) and Anticyclonic (AB, Ae, As, Aw, An, AF, A) dominance is separated(relative frequencies are 34% and 66%, resp.)
mCc AB
Ae As
Aw An AF A
CMc
CMwmCw zC
C
7%, mostly in summer 6%, more in summer 3%, more in spring
9%, more in spring
The annual mean relative frequency is determined using the 1961-1990 baseperiod
13%, more in autumn / winter
8%, more in winter / spring
4%, more in winter 5%, more in winter
16%, more in summer 12%, less in autumn 4%, more in summer 11%, more in summer / autumn
2%, more in spring / summer
Péczely MCP typesSeasonal and annual frequency of cyclonic and anticyclonic patterns