Address : Royal Observatory of Belgium Av. Circulaire 3 B-1180 Brussels Belgium Phone : +32-(0)2-3730341 Fax : +32-(0)2-3749822 eric.pottiaux@oma.be

Eric Pottiaux received his Masters degree in Mathematics from the Universite Catholique de Louvain (UCL), Belgium, in 1998. Since 1998, he is member of the GNSS research group at the Royal Observatory of Belgium (ROB) and he works on the interaction between the Earth's neutral atmosphere and Space Geodesy techniques. From 1999 to 2006, he has taken part in the European Cooperation in the Field of Scientific and Technical Research (COST) action 716 "Exploitation of ground-based GPS for climate and numerical weather prediction applications" and to the European Commission TOUGH project "Targeting Optimal Use of GPS Humidity Measurements in Meteorology". Since 2005, he is responsible for the Belgian (geodetic) contribution to the EUMETNET EIG GNSS Water Vapour Program (E-GVAP) and he acts as national delegate in the geodetic expert team of this project. In 2010, he received his doctor's degree in exact Sciences from the UCL for his works in GNSS-meteorology. Today, he works at ROB in the framework of the Solar-Terrestrial Centre of Excellence (STCE). He is also

• - Member of the International GNSS Service (IGS) troposphere working group,
• - Co-chair of the working group 2 within the COST Action ES1206 Advanced Global Navigation Satellite Systems tropospheric products for monitoring severe weather events and climate (GNSS4SWEC),
• - Member of the International Association of Geodesy (IAG) WG 4.3.3 "Integration of GNSS atmospheric models with NWP models"
• - Member of the International Association of Geodesy (IAG) WG 4.3.6 "Troposphere Tomography",
• - Vice-chair of the International Association of Geodesy (IAG) WG 4.3.7 "Real-time GNSS Troposphere Monitoring",
• - Vice-chair of the International Association of Geodesy (IAG) JWG 4.3.8 "GNSS Tropospheric Products for Climate".