Jue, 23/10/2003 / Sáb, 25/10/2003

Asociación Internacional de Hidrogeólogos. Grupo Español

Dom, 25/04/2004 / Vie, 30/04/2004

European Geophysical Union

Lun, 12/07/2004 / Vie, 16/07/2004

British Hydrological Society (BHS)

Dom, 08/08/2004 / Jue, 12/08/2004

Estonian Meteorological and Hydrological Institute (EMHI)

Lun, 13/09/2004 / Jue, 16/09/2004

"Faculty of Science, Charles University (Universita Karlova); International Commission on Groundwater (ICGW), of the International Association of Hydrological Sciences (IAHS); International Ground Water Modeling Center (IGWMC); US Geological Survey (USGS)

Lun, 27/09/2004 / Vie, 01/10/2004

National Committee of Germany for IHP/UNESCO and OHP/WMO; Technical University of Braunschweig (Germany); The Berchtesgaden National Park Authority, Germany

Mar, 25/05/2004 / Sáb, 29/05/2004

l'Institut de Recherche pour le Développement (IRD - France); Meteorological Association of the Republic of Macedonia (METEO MAK)

Mié, 20/09/2006 / Vie, 22/09/2006

Institute of Hydrodynamics, Academy of Sciences of the Czech Republic, Prague;Institute of Hydrology

Jue, 21/09/2006 / Sáb, 23/09/2006

IAHS/AISH;IAH/AIH;FOEN/OFEV/BAFU;SSH/SGH;UNESCO/IGCP513

Dom, 18/02/2007 / Vie, 23/02/2007

International Association of Hydraulic Engineering and Research (IAHR)