[en] The daily atmospheric circulation patterns classification is founded on a 100 km regular grid centred on Belgium. The geopotential heights of 500, 850 and 1000 hPa levels were extracted
<br />from the ERA-40 database on the period 1958-2002 and from ECMWF operational analysis until the end of year 2007. The classification was based on a similarity index calculated on the orientation of exaggerated slopes of different daily geopotential fields. Wildfire occurrences were analyzed in April and September (which are the two months with the most frequent wildfire-days in Belgium) together with monthly frequencies and persistences of daily atmospheric circulation pattern classes as well as with yearly variability of weather climate conditions.
Research Center/Unit :
Laboratoire de climatologie, Ulg
Disciplines :
Earth sciences & physical geography
Author, co-author :
Erpicum, Michel ; Université de Liège - ULiège > Département de géographie > Topoclimatologie
Fettweis, Xavier ; Université de Liège - ULiège > Département de géographie > Topoclimatologie
Mabille, Georges ; Université de Liège - ULiège > Architecture Site Saint-Luc > Architecture Site Saint-Luc - Département de géographie
François, Louis ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Modélisation du climat et des cycles biogéochimiques
Language :
English
Title :
Automatic 1958-2007 daily weather pattern classification applied to an analysis of climatic conditions of wildfires in eastern Belgium
Publication date :
April 2008
Number of pages :
A1
Event name :
EGU General Assembly 2008
Event organizer :
EGU
Event place :
Vienne, Austria
Event date :
avril 2008
Audience :
International
Name of the research project :
CEC- DG12-SRD- Wildfires modelisation - Contract nr EV5V-CT91-0015
Funders :
DG RDT - Commission Européenne. Direction Générale de la Recherche et de l'Innovation
