Looking back on last week’s #Iapetus DTP #StudentConference at St Andrews—what a fantastic experience! Great conversations, inspiring research, and a brilliant atmosphere throughout. Here’s to doing it all again next year in a new setting!
Stephen Roberts
@stever60.bsky.social
⚒️ 🧪Earth scientist / geologist reconstructing past environmental change mainly from lake sediments from Antarctica, Arctic, S. America, Nepal, UK and other places 🏡Cambridge, UK 🏳️🌈 he/him Instagram @antarctic_diary
A great day of talks at the @iapetusdtp.bsky.social annual conference - and @drheatherprice.bsky.social and I found where #KateandWills met (for coffee)
Iapetus DTP@iapetusdtp.bsky.social · 2mo agoGreat first session in our first day at the Iapetus Student Conference yesterday, hosted by our St Andrews students. We enjoyed some excellent presentations from our students!
And more great talks in our second session of the first day! Looking forward to Day 2 today … #Iapetus #StudentConference
Excellent new paper by Jonathan Adams from his PhD comparing C-14 and Be-10 cosmogenic exposure ages from glacially-transported erratic cobbles, which we collected from around Mount Murphy as part of the @bas.ac.uk / @ukri.org - funded ANiSEED project. More details here: doi.org/10.5194/gchr...
Paired 14C–10Be exposure ages from Mount Murphy, West Antarctica: Implications for accurate and precise deglacial chronologies
Abstract. Cosmogenic-nuclide surface exposure ages provide empirical data for validating models simulating the timing and pace of ice-sheet response to a warming climate. Increasing emphasis is being ...
doi.org
Trip to beautiful Heidelberg to discuss our new palaeotsunami Shetland Islands project to look at cores/data, train up the Rhine to Bonn for a DFG meeting, back via Koln/Brussels @bas.ac.uk @uniheidelberg.bsky.social @drmaex.bsky.social #collaboration #tsunami #shetland #sedimentology
Link to British Antarctic Survey press release about Chuxian Li et al.’s new paper just published in PNAS: Ancient poo reveals uncertain future for Antarctic seabirds www.bas.ac.uk/news/ancient...
Ancient poo reveals uncertain future for Antarctic seabirds - British Antarctic Survey
Layers of ancient bird droppings preserved in the peatlands of the sub-Antarctic island of Bird Island have given scientists a window into 8,000 years of seabird history.
bas.ac.uk
Excellent new paper by the amazing Chuxian Li - Southern Ocean seabird population shifts over the Holocene revealed by peat sequestration of mercury from guano - just published in PNAS! doi.org/10.1073/pnas...
The Iapetus DTP summer Research Experience Placement (REP) projects have just been advertised - including one working on lake sediment cores from Nepal with our research group … See link for more details: iapetus.ac.uk/rep-projects/ @iapetusdtp.bsky.social @bas.ac.uk @ukri.org
Additionally, we highlight the complexity and localised behaviour of recent and shorter timescale Southern Hemisphere Westerlies changes, with implications for future research.
Our results suggest stronger Southern Hemisphere Westerlies at Macquarie Island from ~2500–2300 cal yr. BP and after ~800 cal yr. BP, and relatively weaker Southern Hemisphere Westerlies between ~2300–800 cal yr. BP. Superimposed on this long-term trend are centennial-scale fluctuations.
Here we demonstrate a direct reconstruction method that provides a robust framework for reconstructing past wind variability, with the broader aim of improving our understanding of past Southern Hemisphere Westerlies behaviours.
As an important component of the Earth's system, changes in the Southern Hemisphere Westerlies profoundly impact climate and the ocean-cryosphere-atmosphere domains.
In this research, we used halophilic and halophobic diatoms to reconstruct the Southern Hemisphere variability on subantarctic Macquarie Island during the last 2500 years, by exploiting the wind-driven sea spray and lake conductivity relationship.
Excellent new paper by @yqnatdeng.bsky.social in The Holocene this week using diatoms from a lake sediment core from Macquarie Island to reconstruct past changes in lake water conductivity and Southern Hemisphere Westerly winds … @bas.ac.uk @uclgeography.bsky.social @antarctic.bsky.social
Natalie Deng@yqnatdeng.bsky.social · 4mo agoPaper from my MSc research at @uclgeography.bsky.social is now published in The Holocene. Read it here: doi.org/10.1177/0959...
Paper from my MSc research at @uclgeography.bsky.social is now published in The Holocene. Read it here: doi.org/10.1177/0959...
Late-Holocene palaeoecological reconstruction of Southern Hemisphere Westerlies variability on Subantarctic Macquarie Island - Yuqiao Natalie Deng, Stephen J. Roberts, Krystyna M. Saunders, Bianca Per...
As the world’s strongest zonal surface winds, changes in the Southern Hemisphere Westerlies (SHW) can profoundly affect atmospheric carbon dioxide (CO2) concent...
doi.org
Early view of our new high-resolution sub-Antarctic islands peat geochemistry calibration paper in press @Nature Scientific Reports … www.nature.com/articles/s41...
Spectacular ending to the annual Cambridge Bonfire Night fireworks display tonight …
Short Article for the BAS IceSheet Newsletter Oct/Nov 2025 … Ancient tsunamis and storms in the Shetlands Islands See link for article: www.linkedin.com/posts/stephe...
British Antarctic Survey supervisors are involved in 20 Iapetus DTP PhD projects this year - 6 based at BAS, 14 at one of the Iapetus DTP univeristy partners. Full list and how to apply are in this link : www.linkedin.com/posts/stephe...
Studentship Competition | Stephen Roberts
British Antarctic Survey supervisors are involved in 20 Iapetus DTP PhD projects this year - 6 based at BAS, 14 at one of the Iapetus DTP univeristy partners - see below for a full list and please for...
linkedin.com
Applications are now open for this years’ @iapetusdtp.bsky.social PhD projects … including this one investigating ice sheet and glacier history of the Sør Rondane Mountains in East Antarctica by developing in-situ 14C cosmogenic exposure dating methods - more here: iapetus.ac.uk/studentships...
Keir Nichols@cosmokeir.bsky.social · 10mo agoApplications are now open for a Glasgow-based Iapetus DTP project centred on using in situ 14C to study glacier histories in East Antarctica! tinyurl.com/3ddvynn2 @stever60.bsky.social @uofglasgow.bsky.social @iapetusdtp.bsky.social @bas.ac.uk
Applications are now open for a Glasgow-based Iapetus DTP project centred on using in situ 14C to study glacier histories in East Antarctica! tinyurl.com/3ddvynn2 @stever60.bsky.social @uofglasgow.bsky.social @iapetusdtp.bsky.social @bas.ac.uk
Applications are now open for this years’ BAS Iapetus PhD projects … including one working on our Big Thaw project investigating extreme precipitation in Nepal from sediment core and climate data - more details in this link @iapetusdtp.bsky.social @bas.ac.uk iapetus.ac.uk/studentships...
Indeed, Loch Flugarth #ShetlandIslands is a beauty on the inside AND the outside! @stever60.bsky.social @uniheidelberg.bsky.social
Stephen Roberts@stever60.bsky.social · 11mo agoSecond Scottish lake coring adventure of the summer … this time up to the Shetland Islands looking for ancient storms and tsunamis in lake sediments with @drmaex.bsky.social
Lake coring in the Shetland Islands last week, looking for ancient tsunamis with @drmaex.bsky.social @uniheidelberg.bsky.social @bas.ac.uk
New exciting new global lake sediment temperature calibration paper and dataset by @geochemem.bsky.social, including the first 5- and 6-methyl brGDGTs measured in lake sediments from Antarctica - eg Fan Lake. See link for details: doi.org/10.1016/j.qu... @bas.ac.uk @iapetusdtp.bsky.social
