Atmospheric science “down under” and “on top”: Connecting Cape Grim and Jungfraujoch research stations
The Cape Grim Baseline Air Pollution Station, located on the rugged northwest tip of Tasmania, is renowned for measuring some of the cleanest air in the world. This unique location receives “baseline” air masses carried by the powerful Roaring Forties winds, which have travelled thousands of kilometres over the Southern Ocean since last encountering land in South America. The station has been jointly operated by the Bureau of Meteorology and CSIRO since 1976 and is the most important long-term atmospheric monitoring site in the Southern Hemisphere.
The Jungfraujoch Research Station, operated by the High Altitude Research Stations Jungfraujoch and Gornergrat Foundation (HFSJG) since the 1930s and providing atmospheric measurements since the 1980s, samples air masses with footprints extending across much of Europe. The air measured at Jungfraujoch is typically more influenced by anthropogenic emissions than that at Cape Grim, providing valuable insight into pollution sources, atmospheric chemistry, and transport processes affecting central Europe and the broader Northern Hemisphere.
HFSJG Director Eliza Harris visited Cape Grim in February and March 2026 to exchange knowledge and learn from the station’s highly experienced team. This visit was supported by the Swiss National Science Foundation’s Scientific Exchange program. This work is part of a collaborative effort to bring together expertise from both observatories. Through this collaboration, we aim to improve and streamline station operations, refine scientific priorities, and strengthen support for the long-term atmospheric monitoring programs which are essential for understanding global environmental change.
The Cape Grim station team – Sarah, Jeremy, Nigel, Cindy, and Stu – generously shared their expertise throughout the visit. Their openness and experience made the stay both productive and inspiring. The scientific input from the CSIRO Cape Grim science team, led by Paul Krummel, was an exciting reflection of the importance of this unique station. Together we have exchanged valuable lessons and built connections that will strengthen our research and operational programs for years to come. Thanks so much to you all!
