Wed 04 Jun 13:00: The Australian Antarctic Program Partnership (AAPP) Biogeochemistry Project: Understanding the changing Southern Ocean carbon cycle
The Australian Antarctic Program Partnership (AAPP) is focused on understanding the nature and impacts of Southern Ocean Change. The Biogeochemistry Project, one of the seven complementary initiatives within the AAPP , combines observations, models and data syntheses to understand changes in the Southern Ocean carbon cycle. This work is undertaken in collaboration with other government agencies, national infrastructure programs, and academic institutions, and highlights the use of essential ocean observations and models to improve understanding and deliver impact. An overview of recent field programs will be presented, along with new work to quantify the uptake and storage of anthropogenic CO2 in the ocean, to validate estimates of ocean carbon export from autonomous platforms, and to improve model representation of air-sea CO2 exchange.
- Speaker: Elizabeth H. Shadwick, CSIRO Environment
- Wednesday 04 June 2025, 13:00-14:00
- Venue: BAS Seminar Room 1.
- Series: British Antarctic Survey - Polar Oceans seminar series; organiser: Dr Birgit Rogalla.
Wed 04 Jun 14:00: The Australian Antarctic Program Partnership (AAPP) Biogeochemistry Project: Understanding the changing Southern Ocean carbon cycle
The Australian Antarctic Program Partnership (AAPP) is focused on understanding the nature and impacts of Southern Ocean Change. The Biogeochemistry Project, one of the seven complementary initiatives within the AAPP , combines observations, models and data syntheses to understand changes in the Southern Ocean carbon cycle. This work is undertaken in collaboration with other government agencies, national infrastructure programs, and academic institutions, and highlights the use of essential ocean observations and models to improve understanding and deliver impact. An overview of recent field programs will be presented, along with new work to quantify the uptake and storage of anthropogenic CO2 in the ocean, to validate estimates of ocean carbon export from autonomous platforms, and to improve model representation of air-sea CO2 exchange.
- Speaker: Elizabeth H. Shadwick, CSIRO Environment
- Wednesday 04 June 2025, 14:00-15:00
- Venue: BAS Seminar Room 1.
- Series: British Antarctic Survey - Polar Oceans seminar series; organiser: Dr Birgit Rogalla.
Wed 11 Jun 14:00: Exploring the Impact of Changing Overturning Circulation on Carbon Storage due to the Biological Carbon Pump: An Idealised Modelling Approach
Compelling evidence indicates that ocean circulation is undergoing significant changes due to global warming. These changes include reduced ocean ventilation caused by increased stratification and the weakening of the Atlantic Meridional Overturning Circulation (AMOC). Consequently, this will alter carbon, oxygen, heat and nutrient distribution, and will therefore affect primary production and, by extension, the biological carbon pump. Due to the ocean’s huge capacity for carbon storage, it is imperative that we understand the consequences of these changes.
To examine how ocean ventilation influences the biological carbon pump and overall oceanic carbon storage, an idealised box model of ocean carbon and heat uptake is extended to include biological processes and nutrient cycling. The model includes a thermocline with a dynamically controlled thickness and meridional overturning circulation, both of which vary with increasing temperatures, determining the extent of ocean ventilation. This model, previously employed to analyse the ocean’s carbon and thermal response to anthropogenic emissions, is now adapted to explore the effects of changing overturning on the biological carbon pump. A simple nutrient-phytoplankton-zooplankton-detritus (NPZD) biological model is introduced to simulate the role of macronutrient concentrations on phytoplankton and zooplankton growth. Simulations are conducted under scenarios of both constant and changing circulation to investigate the impacts of slower circulation on the biological carbon pump and its contribution to oceanic carbon storage.
- Speaker: Elisavet Baltas, University of Cambridge
- Wednesday 11 June 2025, 14:00-15:00
- Venue: BAS Seminar Room 2.
- Series: British Antarctic Survey - Polar Oceans seminar series; organiser: Dr Yohei Takano.
Wed 11 Jun 14:00: Title to be confirmed
Abstract not available
- Speaker: Elisavet Baltas, University of Cambridge
- Wednesday 11 June 2025, 14:00-15:00
- Venue: BAS Seminar Room 2.
- Series: British Antarctic Survey - Polar Oceans seminar series; organiser: Dr Yohei Takano.
Wed 07 May 14:00: Reconstructing wintertime seawater pCO2 on the data-barren shelf of the western Weddell Sea based on summertime bottom water measurements
The dense waters formed on the broad shelf of the western Weddell Sea are a source of Weddell Sea Bottom Water (WSBW), which transports anthropogenic CO2 along the continental slope to the bottom of the ocean. Our updated time series shows a positive trend of carbon in WSBW . To understand the drivers for this pathway for carbon sequestration, we need to understand the processes affecting carbon concentrations in shelf waters at the time of dense water formation, which is predominantly during sea ice formation in winter. Unfortunately, wintertime marine observations are particularly scarce in the western Weddell Sea. We are therefore testing a method that reconstructs the seawater partial pressure of CO2 (pCO2) representative of wintertime conditions in this dense-water formation region, using carbonate chemistry observations made in WSBW in the summer. Results suggest that atmospheric CO2 uptake is the main driver of increasing carbon in WSBW , and thus that equilibration of surface seawater with the atmosphere is possible despite year-round sea ice cover in this region.
- Speaker: Elise Droste (University of East Anglia)
- Wednesday 07 May 2025, 14:00-15:00
- Venue: BAS Seminar Room 1.
- Series: British Antarctic Survey - Polar Oceans seminar series; organiser: Dr Birgit Rogalla.
Wed 07 May 13:00: The SIREN study at five years: Tracking SARS-CoV-2 and respiratory infections in UK healthcare workers since 2020
All are invited to the Bradford Hill Seminar:
The SIREN study at five years: Tracking SARS -CoV-2 and respiratory infections in UK healthcare workers since 2020
Speaker: Victoria Hall, Consultant Epidemiologist, Antimicrobial Resistance & Healthcare Associated Infections Division of the UK Health Security Agency (UK HSA )
Register to attend Please note this will be a free hybrid seminar, with the option to attend in-person (Large Seminar Room, East Forvie Building, Forvie Site, Robinson Way, Cambridge CB2 0SR ) or virtually (via Zoom).
No registration is required to attend in person.
Register in advance to attend this seminar online at:
https://cam-ac-uk.zoom.us/meeting/register/CoavXVmNQtWN8j8TOFv-rg#/registration
Abstract The SARS -CoV-2 Immunity and Reinfection Evaluation (SIREN) study is a prospective cohort study of hospital-based healthcare workers across the UK. It was established in 2020 as a pandemic response study, with over 44,000 healthcare workers recruited from 135 NHS trusts/health boards. The study initially investigated SARS -CoV-2 reinfections and the durability of immunity following infection, and subsequently COVID -19 vaccination. It has expanded its scope to evaluate Winter Pressures on the healthcare workforce, and questions related to immunity more broadly.
SIREN has been running since 2024. This has involved collecting data on symptoms and absence from time off work trends in around 5000 participants recruited from the original SIREN cohort. In addition to investigating Winter Pressures, SIREN provides an opportunity to address new research questions of public health importance that impact healthcare workers, including the emergence of multidrug resistant organisms and risk factors for healthcare associated infections.
More details on the study and publications from the study can be found here: https://www.gov.uk/guidance/siren-study
About Victoria Hall Victoria Hall is a Consultant Epidemiologist in the Antimicrobial Resistance & Healthcare Associated Infections Division of the UK Health Security Agency and has been leading the SIREN study team since 2020. She completed public health speciality training in the East of England and the UK Field Epidemiology Training Programme based in South East and London Regional Field Epidemiology Service. She holds a part-time position at the Institute for Health Informatics, UCL working on research on infections and AMR in care homes with the VIVALDI study.
About the Bradford Hill seminars The Bradford Hill seminar series is the principal series of The Cambridge Population Health Sciences Partnership, in collaboration with the PHG Foundation. This comprises the Departments of Public Health & Primary Care, MRC Biostatistics Unit and MRC Epidemiology Unit at the University of Cambridge, bringing together a multi-disciplinary partnership of academics and public health professionals. The Bradford Hill seminar programme of internationally recognised speakers covers topics of broad interest to our public health research community. It aims to transcend as well as connect the activities of our individual partners.
All are welcome at our Bradford Hill seminars.
- Speaker: Victoria Hall, UK Health Security Agency
- Wednesday 07 May 2025, 13:00-14:00
- Venue: Large Seminar Room, East Forvie Building, Forvie Site Robinson Way Cambridge CB2 0SR..
- Series: Bradford Hill Seminars; organiser: Paul Browne.
Wed 07 May 13:00: The SIREN study at five years: Tracking SARS-CoV-2 and respiratory infections in UK healthcare workers since 2020
All are invited to the Bradford Hill Seminar:
The SIREN study at five years: Tracking SARS -CoV-2 and respiratory infections in UK healthcare workers since 2020
Speaker: Victoria Hall, Consultant Epidemiologist, Antimicrobial Resistance & Healthcare Associated Infections Division of the UK Health Security Agency (UK HSA )
Register to attend Please note this will be a free hybrid seminar, with the option to attend in-person (Large Seminar Room, East Forvie Building, Forvie Site, Robinson Way, Cambridge CB2 0SR ) or virtually (via Zoom).
No registration is required to attend in person.
Register in advance to attend this seminar online at:
https://cam-ac-uk.zoom.us/meeting/register/CoavXVmNQtWN8j8TOFv-rg#/registration
Abstract The SARS -CoV-2 Immunity and Reinfection Evaluation (SIREN) study is a prospective cohort study of hospital-based healthcare workers across the UK. It was established in 2020 as a pandemic response study, with over 44,000 healthcare workers recruited from 135 NHS trusts/health boards. The study initially investigated SARS -CoV-2 reinfections and the durability of immunity following infection, and subsequently COVID -19 vaccination. It has expanded its scope to evaluate Winter Pressures on the healthcare workforce, and questions related to immunity more broadly.
SIREN has been running since 2024. This has involved collecting data on symptoms and absence from time off work trends in around 5000 participants recruited from the original SIREN cohort. In addition to investigating Winter Pressures, SIREN provides an opportunity to address new research questions of public health importance that impact healthcare workers, including the emergence of multidrug resistant organisms and risk factors for healthcare associated infections.
More details on the study and publications from the study can be found here: https://www.gov.uk/guidance/siren-study
About Victoria Hall Victoria Hall is a Consultant Epidemiologist in the Antimicrobial Resistance & Healthcare Associated Infections Division of the UK Health Security Agency and has been leading the SIREN study team since 2020. She completed public health speciality training in the East of England and the UK Field Epidemiology Training Programme based in South East and London Regional Field Epidemiology Service. She holds a part-time position at the Institute for Health Informatics, UCL working on research on infections and AMR in care homes with the VIVALDI study.
About the Bradford Hill seminars The Bradford Hill seminar series is the principal series of The Cambridge Population Health Sciences Partnership, in collaboration with the PHG Foundation. This comprises the Departments of Public Health & Primary Care, MRC Biostatistics Unit and MRC Epidemiology Unit at the University of Cambridge, bringing together a multi-disciplinary partnership of academics and public health professionals. The Bradford Hill seminar programme of internationally recognised speakers covers topics of broad interest to our public health research community. It aims to transcend as well as connect the activities of our individual partners.
All are welcome at our Bradford Hill seminars.
- Speaker: Victoria Hall, UK Health Security Agency
- Wednesday 07 May 2025, 13:00-14:00
- Venue: Large Seminar Room, East Forvie Building, Forvie Site Robinson Way Cambridge CB2 0SR..
- Series: Bradford Hill Seminars; organiser: Paul Browne.
Wed 30 Apr 14:00: Unravelling the complexity of root stem cell niche regulation through multi-scale models
Abstract not available
- Speaker: Dr Monica Garcia Gomez, Assistant Professor, Utrecht University
- Wednesday 30 April 2025, 14:00-15:00
- Venue: Auditorium of Sainsbury Laboratory Cambridge University - 47 Bateman Street and Online (Zoom meeting). Contact events@slcu.cam.ac.uk for meeting joining details.
- Series: Sainsbury Laboratory Seminars; organiser: Sainsbury Laboratory.
Wed 21 Oct 14:00: External Seminar - Jenn Brophy TBC
Abstract not available
- Speaker: Jenn Brophy, Stanford University
- Wednesday 21 October 2026, 14:00-15:00
- Venue: Auditorium of Sainsbury Laboratory Cambridge University - 47 Bateman Street and Online (Zoom meeting). Contact events@slcu.cam.ac.uk for meeting joining details. .
- Series: Sainsbury Laboratory Seminars; organiser: Sainsbury Laboratory.
Wed 27 May 14:00: External Seminar - Hilde Nelissen TBC
Abstract not available
- Speaker: Hilde Nelissen, Ghent University
- Wednesday 27 May 2026, 14:00-15:00
- Venue: Auditorium of Sainsbury Laboratory Cambridge University - 47 Bateman Street and Online (Zoom meeting). Contact events@slcu.cam.ac.uk for meeting joining details. .
- Series: Sainsbury Laboratory Seminars; organiser: Sainsbury Laboratory.
Wed 24 Jun 14:00: External Seminar - Sabine Zachgo TBC
Abstract not available
- Speaker: Professor Dr. Sabine Zachgo, Osnabrück University, Botany
- Wednesday 24 June 2026, 14:00-15:00
- Venue: Auditorium of Sainsbury Laboratory Cambridge University - 47 Bateman Street and Online (Zoom meeting). Contact events@slcu.cam.ac.uk for meeting joining details. .
- Series: Sainsbury Laboratory Seminars; organiser: Sainsbury Laboratory.
Wed 29 Apr 14:00: External Seminar - Michael Rassig TBC
Abstract not available
- Speaker: Professor Michael Rassig, University of Bern
- Wednesday 29 April 2026, 14:00-15:00
- Venue: Auditorium of Sainsbury Laboratory Cambridge University - 47 Bateman Street and Online (Zoom meeting). Contact events@slcu.cam.ac.uk for meeting joining details. .
- Series: Sainsbury Laboratory Seminars; organiser: Sainsbury Laboratory.
Wed 25 Mar 14:00: External Seminar - Bénédicte Charrier TBC
Abstract not available
- Speaker: Dr Bénédicte Charrier, Institute of Functional Genomics at Lyon (IGFL)
- Wednesday 25 March 2026, 14:00-15:00
- Venue: Auditorium of Sainsbury Laboratory Cambridge University - 47 Bateman Street and Online (Zoom meeting). Contact events@slcu.cam.ac.uk for meeting joining details. .
- Series: Sainsbury Laboratory Seminars; organiser: Sainsbury Laboratory.
Wed 25 Feb 14:00: External Seminar - Magdalena Bezanilla TBC
Abstract not available
- Speaker: Professor Magdalena Bezanilla, Dartmouth College
- Wednesday 25 February 2026, 14:00-15:00
- Venue: Auditorium of Sainsbury Laboratory Cambridge University - 47 Bateman Street and Online (Zoom meeting). Contact events@slcu.cam.ac.uk for meeting joining details. .
- Series: Sainsbury Laboratory Seminars; organiser: Sainsbury Laboratory.
Wed 28 Jan 14:00: External Seminar - Christine Faulkner TBC
Abstract not available
- Speaker: Professor Christine Faulkner, John Innes Centre
- Wednesday 28 January 2026, 14:00-15:00
- Venue: Auditorium of Sainsbury Laboratory Cambridge University - 47 Bateman Street and Online (Zoom meeting). Contact events@slcu.cam.ac.uk for meeting joining details. .
- Series: Sainsbury Laboratory Seminars; organiser: Sainsbury Laboratory.
Wed 29 Oct 14:00: External Seminar - Christian Fankhauser TBC
Abstract not available
- Speaker: Professor Christian Fankhauser, University of Lausanne
- Wednesday 29 October 2025, 14:00-15:00
- Venue: Auditorium of Sainsbury Laboratory Cambridge University - 47 Bateman Street and Online (Zoom meeting). Contact events@slcu.cam.ac.uk for meeting joining details. .
- Series: Sainsbury Laboratory Seminars; organiser: Sainsbury Laboratory.
Wed 23 Jul 14:00: External Seminar - Dr Oswaldo Valdes-Lopez TBC
Abstract not available
- Speaker: Dr Oswaldo Valdes-Lopez, Functional Genomics of Legumes
- Wednesday 23 July 2025, 14:00-15:00
- Venue: Auditorium of Sainsbury Laboratory Cambridge University - 47 Bateman Street and Online (Zoom meeting). Contact events@slcu.cam.ac.uk for meeting joining details. .
- Series: Sainsbury Laboratory Seminars; organiser: Sainsbury Laboratory.
Wed 26 Nov 14:00: External Seminar - Lars Østergaard TBC
Abstract not available
- Speaker: Lars Østergaard, Oxford University
- Wednesday 26 November 2025, 14:00-15:00
- Venue: Auditorium of Sainsbury Laboratory Cambridge University - 47 Bateman Street and Online (Zoom meeting). Contact events@slcu.cam.ac.uk for meeting joining details. .
- Series: Sainsbury Laboratory Seminars; organiser: Sainsbury Laboratory.
Wed 09 Apr 15:00: Exploring the Spatial and Temporal Variability in Water Column Properties in Tidewater Glacier-Ocean Systems in the Canadian Arctic Archipelago
The Canadian Arctic Archipelago (CAA) is home to over 300 marine-terminating glaciers facing retreat with ongoing Arctic change, increasing glacial meltwater delivery to the ocean. Subglacial discharge can produce meltwater plumes that promote upwelling and enhance mixing near glacier termini, impacting water column structure, turbidity, and other biogeochemical properties in the proximate ocean. Despite their abundance, knowledge is lacking on glacier-ocean systems across the CAA , specifically how glacial meltwater is influencing and modifying the marine environment in the coastal ocean. This talk explores the 4 years of late summer in-situ observations of marine-terminating glacier-ocean systems and non-glacierized systems in Jones Sound, a glacier rich region of the CAA . Specifically, we examine the systematic influence of marine-terminating glacier presence on the chemical and physical marine environment and contrast marine-terminating glacier systems with riverine systems in the same region. We find marine-terminating glaciers host late-summer nutrient enhancement above the region’s characteristic nutricline year over year. This contrasts riverine systems that show rare nutrient enhancement above the characteristic nutricline. Ongoing retreat may shift these systems towards riverine-like systems, reducing this above-nutricline nutrient enhancement that may impact phytoplankton community composition, which may have subsequent impacts on carbon sequestration and food web function. This work also informs the Inuit community of Ausuittuq (Grise Fiord, NU), who live in Jones Sound and use the neighbouring ocean for traditional hunting, culture, and economic benefit, about the ongoing change in their local environment.
- Speaker: Claire Parrott, University of British Columbia
- Wednesday 09 April 2025, 15:00-16:00
- Venue: BAS Seminar Room 2.
- Series: British Antarctic Survey - Polar Oceans seminar series; organiser: Dr Birgit Rogalla.
Wed 24 Jun 14:00: External Seminar - Sabine Zachgo TBC
Abstract not available
- Speaker: Professor Dr. Sabine Zachgo, Osnabrück University, Botany
- Wednesday 24 June 2026, 14:00-15:00
- Venue: Auditorium of Sainsbury Laboratory Cambridge University - 47 Bateman Street and Online (Zoom meeting). Contact events@slcu.cam.ac.uk for meeting joining details. .
- Series: Sainsbury Laboratory Seminars; organiser: Sainsbury Laboratory.