Dr. Eric Pottiaux 
Royal Observatory of Belgium (ROB)
Avenue Circulaire, 3
B-1180 Uccle
Belgium
E-mail: Eric.Pottiaux@oma.be

 

Dr. Roeland van Malderen
Royal Meteorological Institute of Belgium (RMI)
Avenue Circulaire, 3
B-1180 Uccle
Belgium
E-mail: Roeland.VanMalderen@meteo.be

 

Dr. Anna Klos Military University of Technology (MUT)
Faculty of Civil Engineering and Geodesy
Gen. S. Kaliskiego, 2
00-908 Warsaw
Poland
E-mail: anna.klos@wat.edu.pl