
A Day in the Life at Sea
Two months at sea, collecting drill cores in the stormiest ocean on the planet, can feel both extremely epic and fairly routine.
The Southern Ocean is notorious for having some of the strongest winds and largest waves ever seen on the planet. It is also home to the largest current in the world, the Antarctic Circumpolar Current. This mightiest current connects all three major basins of the global ocean — the Atlantic, Pacific, and Indian Oceans — and plays a major role in regulating global climate and atmospheric concentrations of CO2. Expedition 383 of the International Ocean Discovery Program has set sail toward this region in order to unravel the mysteries of the Southern Ocean’s climate history, with three researchers from Lamont-Doherty Earth Observatory on board the drill ship JOIDES Resolution. Gisela Winckler co-leads the expedition, while postdoctoral researchers Jenny Middleton and Julia Gottschalk sail as a stratigraphic correlator and a sedimentologist, respectively. They look forward to sharing their experiences on board during the two-month expedition.
Location: South Pacific (near 120°W, 56°S), arriving and departing from Punta Arenas, Chile
Purpose: To understand the dynamics of the Pacific Antarctic Circumpolar current and to understand the interactions between the atmosphere, ocean and ice sheets around the Antarctic continent in the past, which informs us about future climate change.
Time period: May 20 – July 20, 2019
Two months at sea, collecting drill cores in the stormiest ocean on the planet, can feel both extremely epic and fairly routine.
Despite all the “Waiting on Weather” and “Running Away from Weather,” the expedition recovered exciting new sedimentary climate records in the remote and notoriously stormy Southern Ocean.
Recovering ancient seafloor sediments requires complicated machinery and a skilled crew.
A scientist explains how she lines up wiggles on a screen to recover the missing layers in cores drilled from the bottom of the ocean.
It took six days to sail to Point Nemo, the most inaccessible point of the ocean on this planet, to drill a sample from the ocean floor.
Scientists aboard the R/V Joides Resolution prepare to set sail into the Southern Ocean.