Antarctica Under Observation: Monitoring Ice Shelf Stability: Part 2

Antarctica Under Observation: Monitoring Ice Shelf Stability: Part 2

The Duration: Life and Science on the Fimbulisen Ice Shelf

Through mid- and late January, the team balanced demanding science with the realities of Antarctic fieldwork. GNSS stations positioned around major basal crevasses provided precise measurements of ice motion and fracture growth, helping assess the risk of large calving events. Complementary radar surveys quantified changes in ice thickness, supplying key inputs for ice-shelf flow models.

Seismic surveys used arrays of geophones and controlled energy sources to image the ice shelf and the ice–ocean interface. Drone-based ground-penetrating radar revealed the structure and evolution of deep basal crevasses, building on data from the previous season.

Fieldwork was frequently interrupted by severe storms, including wind gusts exceeding 120 km/h. Despite delays, the team adapted schedules and used downtime for maintenance and data checks. A major milestone was the first deployment of SAR corner reflectors on an Antarctic ice shelf, enabling highly accurate satellite tracking of ice motion.

Together, these measurements produced a unique dataset capturing both surface and subsurface behaviour of the Fimbulisen Ice Shelf.

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Antarctica Under Observation: Monitoring Ice Shelf Stability:  Part 1 The Beginning

Antarctica Under Observation: Monitoring Ice Shelf Stability: Part 1 The Beginning

Monitoring Antarctic Ice Shelf StabilityAntarctic ice shelves play a critical role in controlling future sea-level rise.

In January 2026, an international research team began the second field campaign of Structural Glaciological Analysis of the Antarctic Ice Shelves, supported by the National Research Foundation and the South African National Antarctic Programme (SANAP). Led by the University of Cape Town’s Polar Engineering Research Group, the project combines expertise in engineering, geophysics, and glaciology.

The focus is the western Fimbulisen Ice Shelf , which regulates ice flow from the Antarctic interior into the Southern Ocean via the Jutulstraumen Glacier. Changes in its stability directly affect ice discharge and global sea level.

The SANAP 2025/2026 team arrived aboard SA Agulhas II on 11 January 2026 and established a field camp on the ice shelf. Early work centred on retrieving data from permanent GNSS stations and phase-sensitive radar instruments measuring ice motion, thickness, and basal melt.

These efforts marked the start of five intensive weeks of fieldwork aimed at understanding how Antarctic ice shelves respond to a warming climate.

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JOB Alert: Marion Island 2026-2027 – Closing Date 9 Feb 2026

JOB Alert: Marion Island 2026-2027 – Closing Date 9 Feb 2026

Applications are still open for the following positions on the sub-Antarctic, Marion Island for the overwintering period (April 2026 to May 2027)

Communications Engineer  Diesel Mechanic  Electrical Engineer    Medical Orderly  

Closing Date: 09 February 2026

The incumbent will execute duties at a Sub/Antarctic Base and adhere to the health, safety and environmental requirements. The successful applicant will spend a full year (April 2026 to May 2027) at Marion Island. There is no option to return to South Africa before May 2027. The ability to work and live with small groups of people is thus essential. Although the base is well-equipped with e-mail, fax and satellite telephone facilities, the applicant must be self-sufficient and self-motivated.

Marion 82 Newsletter now available!

Marion 82 Newsletter now available!

The Marion 82 Overwintering Team newsletter is now available. Based on Marion Island as part of the South African National Antarctic Programme (SANAP), the Marion 82 team shares a vivid snapshot of life and work on the island.

This edition features a warm welcome and introduction from Mndeni Hlatshwayo (Team Leader & Medical Orderly) and Andile Kuzwayo (Editor-in-Chief), followed by a “Meet the Team” section introducing the overwintering members. Richly illustrated with striking photographs, the newsletter also highlights the team’s daily activities, captures the unique island environment, and presents insightful weather statistics that reflect the challenging conditions of Marion Island. Together, these stories offer an engaging look at the people, science, and experiences shaping the Marion 82 overwintering year.

Download Newsletter here

 

From Pole to Promenade: Bringing South Africa’s Polar Science to the Public

From Pole to Promenade: Bringing South Africa’s Polar Science to the Public

The South African National Antarctic Programme (SANAP) is proud to announce a striking new science–art installation on Cape Town’s iconic Sea Point Promenade: “Pole to Promenade”, a public photo exhibition, alongside “Drifters: The Invisible Forest”, a vibrant mural celebrating the unseen world of phytoplankton. Together, these installations transform one of South Africa’s most visited public spaces into an open-air gateway to the Southern Ocean and Antarctic region.

This Science–Art project was initiated by Dr Sandy Thomalla, Research Group Leader of the Southern Ocean Carbon–Climate Observatory (SOCCO) at the CSIR, and realised in collaboration with Ria Olivier of the Antarctic Legacy of South Africa (Stellenbosch University). It reflects SANAP’s commitment not only to world-class polar research, but also to sharing that knowledge widely — beyond academic journals and into everyday life.

Art as a Bridge to Science: Art has a unique power: it invites people to pause, to look closely, and to feel curious. In that moment of engagement, complex scientific ideas can become accessible, memorable, and meaningful. Much of SANAP’s work takes place in remote, extreme environments that most people will never experience first-hand. Through creative expression, art becomes a bridge between science and society — translating data, models, and observations into stories that resonate emotionally. Globally, arts and culture are increasingly recognised as essential partners in science communication, particularly in areas such as climate change and ocean literacy. By combining visual art, imagery, and storytelling, Pole to Promenade aims to deepen public understanding of why polar research matters, why national investment in this work is vital, and how the Antarctic region and Southern Ocean are tightly connected to everyday life in South Africa.

Drifters: The Invisible Forest: At the heart of the installation is Drifters: The Invisible Forest, a large-scale mural painted by Cape Town artist Joh Del on one of the Sea Point promenade’s ablution blocks. The mural celebrates phytoplankton — microscopic, single-celled organisms that drift through the sunlit surface of the ocean. Though invisible to the naked eye, phytoplankton are foundational to life on Earth. Like plants on land, they photosynthesise, forming the base of marine food webs. They are responsible for producing roughly half of the oxygen we breathe and play a critical role in regulating Earth’s climate by absorbing vast amounts of carbon dioxide through the biological carbon pump. Their seasonal blooms drive ocean productivity, influence global carbon cycles, and ultimately support marine ecosystems and human food security. Structurally diverse and visually striking, phytoplankton are also unexpectedly beautiful. The mural brings this hidden world to life through flowing forms and vivid colour, inviting passers-by to appreciate both the aesthetic wonder and ecological importance of these tiny ocean drifters.

Pole to Promenade: An Outdoor Image Exhibition – Alongside the mural, the Pole to Promenade image exhibition features more than 20 powerful photographs and data visualisations captured by South African polar researchers. These images offer a rare glimpse into the remote and fragile environments of the Southern Ocean and Antarctic region — places central to global climate regulation, yet far removed from daily experience. The exhibition blends field photography, satellite imagery, microscopic views, and creative data visualisations to showcase the breadth of SANAP-supported research. Together, the images highlight South Africa’s long-standing leadership in polar science and underscore the importance of sustained research in understanding climate change, ocean processes, and Earth system dynamics. A huge thank you to all the contributors of these images

As Dr Sandy Thomalla writes: “The Sea Point Promenade in Cape Town has become a portal to the Southern Ocean, thanks to a new science–art installation celebrating South Africa’s leadership in polar research.”

A Living, Learning Space for All –  Both installations will remain on the Sea Point Promenade for at least two years, creating a free, open-access encounter with polar science for locals and visitors alike. With more than a million people visiting the promenade each year, the site offers a rare opportunity to reach audiences from all walks of life — outside the walls of museums, galleries, or universities. An official launch is planned for early 2026, which will include a dedicated workshop with learners from schools across the Western Cape, reinforcing SANAP’s commitment to education, inspiration, and the next generation of scientists. In the meantime, SANAP warmly invites the public to explore the installations, engage with the stories they tell, and learn more about South Africa’s vital role in Antarctic and Southern Ocean research.

Why It Matters – The Southern Ocean absorbs around 50% of the ocean’s carbon dioxide uptake and 75% of the excess heat generated by human activities, acting as a crucial buffer against climate change. Understanding how this system works — and how it is changing — is central to SANAP’s mission. By bringing this science into public spaces through art, Pole to Promenade helps foster awareness, appreciation, and care for our shared environment.

CLICK HERE for more information on the project

We invite everyone walking the promenade to pause, look closer, and let this journey from the Pole to the Promenade spark curiosity about our planet — and South Africa’s role in protecting its future.

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