Fieldwork in Hornsund, Svalbard, Norway, May 2022
In Mai 2022, Dr. Jakob Zopfi (Uni Basel) and colleagues from the Polish Academy of Sciences stayed at the Polish Polar Station at Hornsund (Spitzbergen, Norway) to explore greenhouse gas (GHG) formation and emissions from high Arctic lakes. After drilling trough 1.7 m of solid ice, water samples were collected to characterize the chemistry and microbiology at different depths in the lake. Moreover, sensor chains were installed to monitor continuously various physical and chemical parameters under the ice, during ice cover melting, and during the upcoming summer season. The ultimate goal is to quantify the fluxes of the greenhouse gases(GHG), carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O), into the atmosphere or from the atmosphere into the lake. This research will reveal whether the new ecosystems that form after the disappearance of glaciers, such as lakes, creeks, and wetlands, will represent potential sinks or additional sources of GHG.