Australian Antarctic Program Partnership

@antarctic.bsky.social

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To protect Antarctica and the Southern Ocean is to protect our future on this planet. In this critical decade for action, our science explores the role of the Antarctic region in the global climate system. Led by @utas.edu.au. 🔗 aappartnership.org.au

Wave breaks on iceberg
Monthly Antarctic sea ice extent (SIE; black) and circumpolar Antarctic Bottom Water volume anomalies (blue) from 2002 to 2024 (source: Wyatt et al. Geophysical Research Letters)
Satellite image of windblown sea ice in Weddell Sea (photo: NASA)
source: Rintoul et al. (2026) Antarctic Bottom Water in a changing climate. Nat Rev Earth Environ 7, 86–102 https://doi.org/10.1038/s43017-025-00750-2
RSV Nuyina off Shackleton ice shelf (photo: Pete Harmsen/AAD)
Icebreaker RSV Nuyina next to ice (photo: Pete Harmsen/AAD)
NASA Earth Observatory animation by Lauren Dauphin, using MODIS data from NASA EOSDIS/LANCE and GIBS/Worldview
Location of the ice core sites (blue circles) and volcanic regions of interest (red triangles) relevant to this study (from Harlan et al. 2026)
Craters of Mt Erebus volcano, December 2000 (photo: John Landis/NSF)
Photographic examples of wave flooding, wave pulverisation and wave greening. OWF = wave-overwashed floe; SCFYI = snow-covered first-year ice; WS = wave slush; WBP = wave-buffeting pond; WDP = wave-deformation pond; G = greening; BI = brash ice. (from Massom et al. 2026)
Spilhaus animation: Pat Wongpan, AAPP
In the Marginal Ice Zone, ocean waves break up the ice and lead to smaller floes that melt faster during spring and summer. (photo: Rob Bryson/AAD)
Scientists participating in the Denman Marine Voyage on RSV Nuyina surrounded by sea ice (photo: Pete Harmsen/AAD)
A pair of Antarctic cod rest on the seafloor as krill swarm through the water around them — a vivid glimpse of how life on the continental shelf is tied tightly to the food web above. Depth: 376m, location: Antarctic Peninsula. Credit: Autun Purser, Alfred Wegener Institute
Seamap Antarctica allows users to layer many kinds of spatial data around the Antarctic continent, creating composite map views that connect seafloor landscapes, ocean processes, ecosystems, research activity and human context. Credit: IMAS/ACEAS
ACE research ship Akademik Treshnikov
(a) An ice thickness map of Ross Ice Shelf using the Bedmap-2 data set (Fretwell et al., 2013). Contours represent ice thickness at 100 m intervals. The orange dot represents the HWD2 borehole. (b) HWD2 mooring schematic showing instrument deployment pressures. Nortek Aquadopp current meters are shown in red and Seabird SBE 37 CTD are shown in blue. All numbers are in dbar. The ice shelf thickness and seafloor depth at the HWD2 site were 321 and 741 m, respectively.