Knowledge Hub
Explore our repository of research outputs and information.
We aim to share and communicate our research, to benefit New Zealand and the international community. You can browse, filter by category or type, or search by keywords.
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Emerging long-term trends and interdecadal cycles in Antarctic polynyas
Authors: Grant A. Duffy, Fabien Montiel, Ariaan Purich, Ceridwen I. Fraser.
Year Published: 2024
Document Type:
Publications
Ownership: University of Otago
Summary: An increase in pockets of open water in Antarctica’s sea ice (polynyas) may mean coastal plants and animals could one day establish on the continent, University of Otago-led research suggests.
Case study: Detecting polynya from space
Year Published: 2023
Document Type:
Case Studies
Ownership: Antarctic Science Platform
Summary: Antarctic Science Platform researchers are using satellite data to determine the spatial extent of polynya with better accuracy, which unlocks the ability to quantify their role in large-scale processes, such as sea-ice formation, ocean circulation and their impact on marine ecosystems.
Conservation of heat and mass in P-SKRIPS version 1: the coupled atmosphere–ice–ocean model of the Ross Sea
Authors: A.Malyarenko, A.Gossart, R.Sun, M.Krapp
Year Published: 2023
Document Type:
Papers
Ownership: Geoscientific Model Development
Summary: A coupled model for the Ross Sea, P-SKRIPS, that conserves heat and mass between the ocean and sea ice model (MITgcm) and the atmosphere model (PWRF).
Why is Antarctic sea ice so hard to model?
Authors: Andrew Pauling, Inga Smith, Max Thomas
Year Published: 2023
Document Type:
Cold Call Articles
Ownership: Antarctic Science Platform
Summary: Climate models struggle to reproduce observed Antarctic sea-ice behaviour, due to the many processes affecting its formation and melt. Models must get these processes right in order to inform us what might happen next.
Sea ice and ecosystems
Authors: Rowan Howard-Williams, Ian Hawes
Year Published: 2023
Document Type:
Cold Call Articles
Ownership: Antarctic Science Platform
Summary: Sea ice plays a crucial role in the life cycles of many Antarctic organisms, from the algae at the base of food chains, to seals and penguins at the top.
The connections between sea ice and climate
Authors: James Renwick
Year Published: 2023
Document Type:
Cold Call Articles
Ownership: Antarctic Science Platform
Summary: Antarctic sea ice has an annual seasonal cycle of formation and melting, plus it’s exposed to the winds and storms of the Southern Ocean and to a range of climate influences from near and far.
Sea ice and ocean circulation
Authors: Rowan Howard-Williams, Denise Fernandez, Craig Stevens
Year Published: 2023
Document Type:
Cold Call Articles
Ownership: Antarctic Science Platform
Summary: Formation of Antarctic sea ice affects ocean circulation across the globe. Understanding the mechanisms linking these phenomena is crucially important to understand the impacts of future change in Antarctica.
Delineating Polynya Area Using Active and Passive Microwave Sensors for the Western Ross Sea Sector of Antarctica
Authors: G.Burada, A.McDonald, J.Renwick, B.Jolly
Year Published: 2023
Document Type:
Papers
Ownership: Remote Sensing
Summary: 40m scale polynya information over the western Ross Sea from high-resolution Synthetic Aperture Radar (SAR) Sentinel-1 C-band data.