| 1984 | Jul.-Nov. | YOSEMITE, EL DORADO, SMITH ROCK (USA) |
| 1987 | Jul.-Dec. | Glaciological expedition to Nepal(Langtang and Helambu) |
| 1988 | Apr.-Jun. | Geomorphological expedition to Nepal (Langtang) |
| 1989 | Apr.-Jun. | Glaciological expedition to Nepal (Lantang) |
| 1989 | Aug.-Sep.ŒŽ | Geomorphological expedition to Svalbard, Norway |
| 1989 | Oct.-Dec. | Glaciological expedition to Nepal (Khumbu)( |
| 1990 | Apr.-Jun. | Glaciological expedition to Nepal (Langtang) |
| 1990 | June | Geomorphological excursion to Mt.Kinabalu, Malaysia |
| 1991 | August | Excursion to Tibet (Gormud-Kathmandu by INQUA) |
| 1992 | Apr.-May | Aerial photographing in the Nepal Himalayas |
| 1993 | June | Gemorphological excursion to Canada (IGCP253) |
| 1993 | November- | Wintering in Antarctica (JARE 35) |
| 1995 | till March | |
| 1995 | March | Sightseeing to Gold coast, Australia |
| 1995 | Aug.-Sep. | Glaciological expedition to Kamchakta, Russia |
| 1996 | Jun.-Aug. | Glaciological expedition to Kamchakta, Russia |
| 1997 | June | Glaciological expedition to Kamchakta, Russia |
| 1997 | July | IGS symposium on Antarctica and Global Change in Tasmania, Australia |
| 1997 | September | Glaciological expedition to Kamchakta, Russia |
| 1998 | Feb.-Mar. | Ice core drilling at Austfonna, Svalbard, Norway |
| 1998 | Jun.-Jul. | Ice core drilling at Ushkovsky, Kamchatka, Russia |
| 1999 | April | Glaciological Symposium at Moscow and excursion to St.Petersburg |
| 1999 | Oct-Dec. | Ice core drilling at the Southern Patagonia Icefield, Chile (GRPP99) |
| 2000 | May- | Visiting scientist at Institute of Climate Research, ETH Zurich, Switzerland |
| 2001 | -May | |
| 2001 | June | Glaciological expedition to Kamchatka, Russia |
| 2001 | July | Glaciological expedition to Suntar Khayata Mountains, Siberia |
| 2001 | August | IGS Symposium at Kangerrusuaq, Greenland |
| 2001 | August | Excursion to Unteraargletscher, Berner Overland, Switzerland |