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Meridional Circulation Types

Figures 12-29 show mean daily surface level pressure charts for each of the zonal Grosswetterlagen circulation patterns. Table 4 summarises the important characteristics of each circulation type evident in the mean surface level pressure chart.


Table 4: Meridional Grosswetterlagen circulation types
Grosswetterlagen Description Characteristics
Na North Anticyclonic  
Nz North Cyclonic  
HNa North Iceland High Anticyclonic  
HNz North Iceland High Cyclonic  
HB British Isles High  
TrM Central European Trough  
NEa North-East Anticyclonic  
NEz North-East Cyclonic  
HFa Fennoscandian High Anticyclonic  
HFz Fennoscandian High Cyclonic  
HNFa Norwegian Sea - Fennoscandian High Anticyclonic  
HNFz Norwegian Sea - Fennoscandian High Cyclonic  
SEa South-East Anticyclonic  
SEz South-East Cyclonic  
Sa South Anticyclonic  
Sz South Cyclonic  
TB British Isles Low  
TrW Western European Trough  



Subsections
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Next: North Anticyclonic Up: Mean Daily Surface Level Previous: Central European Low
Gavin Cawley 2002-03-13