• 11 expeditions and cruises to Svalbard (mainly fjords of western Spitsbergen: Billefjorden, Adventfjorden, Hornsund, Kongsfjorden and Greenland Sea), including research cruises with R/V Oceania (4 times) and R/V Jan Mayen. Duration of all the expeditions to Svalbard was over 15 months (in years 1998-2010).

• 5 research cruises on South China Sea (mainly continental shelf of Vietnam and Mekong River Delta) on R/V Sonne (1999, 2006) and R/V Nghien Cuu Bien (2004, 2005), as well as on smaller boats in coastal waters  (2005 and 2007). Time spent on the cruises in this region was about 5.5 months.

• 6 expeditions and research cruises to Thailand and on Andaman Sea (2005, 2006, 2007, 2008, 2009), in regions hit by 2004 tsunami. All together the field work time is more than 4 months.

• Research survey in Japan to document impacts of 11th March tsunami and earthquake in Japan (2011) in the frame of the International Tsunami Survey Team UNESCO.

• Studies on North Sea and Baltic Sea (1999-2000 and 2008, 2009-2011).