Challenger 150: The Challenger Society Conference 2022

By Sir Charles Wyville Thomson - Biblioteca Brasiliana Guita e José Mindlin: 4531, Public Domain,

The Challenger Society Conference 2022 marks the 150th anniversary of the Challenger expedition and celebrates the birth of  international and interdisciplinary oceanography.

Abstracts are now closed but registration is open until 6 July 2022. Visit the event page.

The following sessions are led by NOC experts:

T6 - Towards a Net Zero Oceanographic Capability

Session Leads: Dr Ella Darlington, NOC, UK; Dr Kate Hendry, University of Bristol, UK; Professor Steve Fletcher, University of Plymouth, UK; Alvaro Lorenzo, NOC, UK 
The UN Decade of Ocean Science for Sustainable Development presents the need for a Net Zero Oceanographic Capability (NZOC), which is further articulated by the G7 Future Seas and Oceans Initiative (FSOI) that commits nations to a review of requirements and improvements to meet this ambitious target.
A recent NZOC report, commissioned by the UKRI, has presented recommendations and possible pathways that the UK marine science community might take to contribute to, and potentially lead in areas of development to make such an ambition a reality. 

T7 - Pushing the limits in autonomous oceanography in a net zero carbon world 

Session Leads: Dr Filipa Carvalho, National Oceanography Centre, UK; Dr Marie Porter, Scottish Association for Marine Science, UK ; Dr. J. Alexander Brearley, British Antarctic Survey, UK; Dr Giorgio Dall'Olmo, Plymouth Marine Laboratory, UK 
As we work towards a net zero carbon world, how we collect our oceanographic data is also evolving. While this presents added challenges to continue existing time series, it also brings great opportunities. Autonomous platforms allow us to collect data in remote and challenging locations with little constraints.
They allow repeat transects, simultaneous measurements from neighbouring platforms, and long-term monitoring which results in a better understanding of the spatial and temporal scales of a given dynamic region. 
With the ongoing push to develop new (and miniaturise existing) low-powered, yet high-resolution, sensors to fit these platforms, we can now measure concurrent variables across disciplines, allowing us to better understand the ecosystem as a whole. In this session we would like to discuss the use of different autonomous platforms to look at bio-physical and biogeochemical interactions. We are particularly interested in work involving new autonomous platforms or where platforms (and fitted sensors) have been pushed in terms of scientific applications, operating environment and/or platform capability. 

T10 - Micro to macro: linking bottom-up and top-down approaches that investigate the function, resilience and conservation of Southern Ocean ecosystems 

Session Leads: Dr Jennifer Freer,  Dr Tracey Dornan,  Dr Cecilia Liszka, Dr Anna Belcher, Dr Anne-Sophie Bonnet-Lebrun, British Antarctic Survey, UK, Dr Kathryn Cook, National Oceanography Centre, UK 
Southern Ocean ecosystems are of global significance. Not only are they integral to our global food security and climate regulation, they contribute to some of the most uniquely diverse and productive ecosystems on Earth.
Understanding the interactions within Southern Ocean food webs, and the processes driving them, is vital for underpinning the sustainable management and conservation of these systems.
This ecological knowledge goes further as it is essential for understanding an ecosystem’s role in influencing global ocean nutrient and carbon cycling – a role of increasing significance in the face of climate change.
This session aims to bring together insights from two major streams of ecological research in the region: those which study the pelagic environment and investigate bottom-up processes, and those which study marine predators and provide top-down perspectives on ecosystem processes.  
Presentations in this session may fall within three themes; 
•     interactions between biogeochemical cycling, ecosystem processes, and productivity, 
•     impacts of environmental change on processes, species, or ecological interactions 
•     innovative methods or long-term syntheses that can inform Southern Ocean conservation and sustainable management. 
Submissions from field, laboratory, or modelling studies are equally welcome. This session aims to be an open platform and we encourage early career researchers and underrepresented groups to present their work.

T24 – The Atlantic Meridional Overturning Circulation: Observations, Simulations and Equations

Session Leads: Neil Fraser, Sam Jones, SAMS; Alejandra Sanchez-Franks, NOC
The Atlantic Meridional Overturning Circulation (AMOC) is a dominant control on the climate of the Northern hemisphere. Transatlantic observing networks have provided transformative insights into AMOC strength and variability over the last two decades. However, fundamental questions remain over AMOC trends and variability over longer timescales, as well as the dynamical processes and geographical locations responsible for driving the AMOC.
This session will explore the use of observations, numerical models, proxy records, and theory to elucidate the role of the AMOC both in driving and responding to the changing climate.

Event dates: 
Wednesday 6 July 2022 - 00:00 to Friday 9 September 2022 - 00:00