Juliet Sefton
@seftongeo.bsky.social
McKenzie Fellow @ University of Melbourne. Interested in mud and past sea-level change. Pākehā living in Naarm. She/her
Been thinking about student writing assignments and how to describe what AI-soup-speak sounds like.
My take now is, that if a piece of writing sounds like a horoscope reading or prediction, it's written by generative AI
My take now is, that if a piece of writing sounds like a horoscope reading or prediction, it's written by generative AI
November 6, 2025 at 5:17 AM
Been thinking about student writing assignments and how to describe what AI-soup-speak sounds like.
My take now is, that if a piece of writing sounds like a horoscope reading or prediction, it's written by generative AI
My take now is, that if a piece of writing sounds like a horoscope reading or prediction, it's written by generative AI
It's been a good few months of getting some fieldwork in. There's lots of Holocene muds and sands in WA, NSW, and VIC that still have many secrets to tell about past coastal change.
I have some wonderful colleagues I get to work with along on the way! : )
I have some wonderful colleagues I get to work with along on the way! : )
May 18, 2025 at 2:41 AM
It's been a good few months of getting some fieldwork in. There's lots of Holocene muds and sands in WA, NSW, and VIC that still have many secrets to tell about past coastal change.
I have some wonderful colleagues I get to work with along on the way! : )
I have some wonderful colleagues I get to work with along on the way! : )
Global sea-level rise recorded in North Sea peats! Paleo sea-level work hitting it big.
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Global sea-level rise in the early Holocene revealed from North Sea peats - Nature
An early Holocene sea-level curve based on data from the North Sea reveals two phases of accelerated sea-level rise owing to meltwater from the North American and Antarctic ice sheets.
www.nature.com
March 21, 2025 at 4:43 AM
Global sea-level rise recorded in North Sea peats! Paleo sea-level work hitting it big.
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Join @ruthreef.bsky.social @kerryleerogers.bsky.social Catherine Lovelock and me at the Australian Marine Science Assoc. conference in Narrm for our session 'Sea-level rise and coastal change through time and space' !
Submit your abstract by 14th Feb : )
www.amsa2025.amsa.asn.au/abstract-sub...
Submit your abstract by 14th Feb : )
www.amsa2025.amsa.asn.au/abstract-sub...
Abstract Submissions — AMSA 2025
www.amsa2025.amsa.asn.au
February 8, 2025 at 3:37 AM
Join @ruthreef.bsky.social @kerryleerogers.bsky.social Catherine Lovelock and me at the Australian Marine Science Assoc. conference in Narrm for our session 'Sea-level rise and coastal change through time and space' !
Submit your abstract by 14th Feb : )
www.amsa2025.amsa.asn.au/abstract-sub...
Submit your abstract by 14th Feb : )
www.amsa2025.amsa.asn.au/abstract-sub...
Conditions like these are not ideal for grant writing....!!
(Plz send me good vibes for getting my DECRA application together)
(Plz send me good vibes for getting my DECRA application together)
February 2, 2025 at 11:30 PM
Conditions like these are not ideal for grant writing....!!
(Plz send me good vibes for getting my DECRA application together)
(Plz send me good vibes for getting my DECRA application together)
Great few days learning the ways of the uwitech corer at Lake Bullen Merri for Louisa Sheridan's PhD. The western volcanic plain is such a fabulous part of Victoria!
January 10, 2025 at 12:45 AM
Great few days learning the ways of the uwitech corer at Lake Bullen Merri for Louisa Sheridan's PhD. The western volcanic plain is such a fabulous part of Victoria!
Reposted by Juliet Sefton
Great job opportunity here as part of @21stcenturyweather.bsky.social to work on changes in storms under climate change! jobs.unimelb.edu.au/en/job/91911...
Details : Research Fellow in Mesoscale Storms and Climate : The University of Melbourne
Careers at The University of Melbourne
jobs.unimelb.edu.au
December 20, 2024 at 6:26 AM
Great job opportunity here as part of @21stcenturyweather.bsky.social to work on changes in storms under climate change! jobs.unimelb.edu.au/en/job/91911...
Reposted by Juliet Sefton
We are hiring! Full details at the link below. We are looking for 2 postdocs to work on reconstructing past sea surface temperatures and sea ice distributions as part of the "Past 2 Future" consortium seeking to improve climate models with palaeoclimate data durham.taleo.net/careersectio...
December 18, 2024 at 6:53 PM
We are hiring! Full details at the link below. We are looking for 2 postdocs to work on reconstructing past sea surface temperatures and sea ice distributions as part of the "Past 2 Future" consortium seeking to improve climate models with palaeoclimate data durham.taleo.net/careersectio...
Reposted by Juliet Sefton
🔥New paper alert! 🔥 Jacky Austermann and I show that simultaneous Antarctic collapse + Laurentide persistence during the Last Interglacial (130,000 - 115,000 years ago) could explain the local sea level oscillation observed in the Bahamas, Seychelles, Australia, and elsewhere. tinyurl.com/yjj7w2mr 🧵
December 17, 2024 at 9:10 PM
🔥New paper alert! 🔥 Jacky Austermann and I show that simultaneous Antarctic collapse + Laurentide persistence during the Last Interglacial (130,000 - 115,000 years ago) could explain the local sea level oscillation observed in the Bahamas, Seychelles, Australia, and elsewhere. tinyurl.com/yjj7w2mr 🧵
neat sediment records to help us understand past environmental change in an under-studied area! super excited to see what's in em 👀
End of year sampling of marine sediment cores from the Coral Sea and northern Great Barrier Reef to assess past changes in sea level and sedimentation changes with @seftongeo.bsky.social. Cores collected on the RVInvestigator as part of project HALO.
December 18, 2024 at 11:02 AM
neat sediment records to help us understand past environmental change in an under-studied area! super excited to see what's in em 👀
Reposted by Juliet Sefton
Truly appalling decision. My fear is that other governments will see it as a great idea. Science does not, and cannot, operate in a vacuum. Almost all the impact comes from collaboration with non-scientists.
New piece from @veronikameduna.bsky.social on the latest disaster-in-the-making happening here in #NZ - a govt decision to defund social sciences, humanities, and other blue-sky research.
www.science.org/content/arti...
www.science.org/content/arti...
Amid cuts to basic research, New Zealand scraps all support for social sciences
Scientists shocked as “blue-sky” Marsden Fund has half its budget shifted to research focused on helping economy
www.science.org
December 12, 2024 at 9:56 PM
Truly appalling decision. My fear is that other governments will see it as a great idea. Science does not, and cannot, operate in a vacuum. Almost all the impact comes from collaboration with non-scientists.
Reposted by Juliet Sefton
It’s not ok that many people are confusing a policy goal (1.5 C) with a physical limit of the climate system. It threatens rash actions, it threatens despair, and it threatens loss of credibility.
December 11, 2024 at 11:53 PM
It’s not ok that many people are confusing a policy goal (1.5 C) with a physical limit of the climate system. It threatens rash actions, it threatens despair, and it threatens loss of credibility.
PALSEA friends we have a session we'd love to see your abstracts in... 'understanding drivers of paleo sea level change through proxies and modeling'
The deadline to submit abstracts and apply for financial support for the PAGES #OSM2025, as well as apply to attend the Young Scientists Meeting (YSM) has been extended to 10 December!
More info: pastglobalchanges.org/news/138328
More info: pastglobalchanges.org/news/138328
December 3, 2024 at 9:58 PM
PALSEA friends we have a session we'd love to see your abstracts in... 'understanding drivers of paleo sea level change through proxies and modeling'
Reposted by Juliet Sefton
Deadline extended for abstract submission to the 2025 PAGES OSM! It's looking like a great meeting, with 600+ abstracts so far.
For all my Common Era friends, we've got a 2k session which is looking great so far but would also love YOUR amazing science.
For all my Common Era friends, we've got a 2k session which is looking great so far but would also love YOUR amazing science.
The deadline to submit abstracts and apply for financial support for the PAGES #OSM2025, as well as apply to attend the Young Scientists Meeting (YSM) has been extended to 10 December!
More info: pastglobalchanges.org/news/138328
More info: pastglobalchanges.org/news/138328
December 3, 2024 at 8:50 AM
Deadline extended for abstract submission to the 2025 PAGES OSM! It's looking like a great meeting, with 600+ abstracts so far.
For all my Common Era friends, we've got a 2k session which is looking great so far but would also love YOUR amazing science.
For all my Common Era friends, we've got a 2k session which is looking great so far but would also love YOUR amazing science.
Reposted by Juliet Sefton
Our new study out in @ScienceAdvances shows human presence in Tasmania at least 41,600 years ago, nearly 2000 years earlier than previously thought, and Aboriginal people burned and used wet forests.
Link: www.science.org/doi/10.1126/...
Link: www.science.org/doi/10.1126/...
Landscape burning facilitated Aboriginal migration into Lutruwita/Tasmania 41,600 years ago
Paleoecological records show that Aboriginal people burned wet forest to first settle in Tasmania 41,600 years ago.
www.science.org
November 17, 2024 at 2:04 AM
Our new study out in @ScienceAdvances shows human presence in Tasmania at least 41,600 years ago, nearly 2000 years earlier than previously thought, and Aboriginal people burned and used wet forests.
Link: www.science.org/doi/10.1126/...
Link: www.science.org/doi/10.1126/...
can we make it stop please
October 22, 2024 at 9:39 AM
can we make it stop please
Reposted by Juliet Sefton
New preprint (and code release) for paleo geeks, led by Rutgers postdoc Yucheng Lin: PaleoSTeHM v1.0-rc: a modern, scalable spatio-temporal hierarchical modeling framework for paleo-environmental data
PaleoSTeHM v1.0-rc: a modern, scalable spatio-temporal hierarchical modeling framework for paleo-environmental data
Abstract. Geological records of past environmental change provide crucial information for assessing long-term climate variability, non-stationarity, and nonlinearities. However, reconstructing spatio-...
egusphere.copernicus.org
October 16, 2024 at 2:59 PM
New preprint (and code release) for paleo geeks, led by Rutgers postdoc Yucheng Lin: PaleoSTeHM v1.0-rc: a modern, scalable spatio-temporal hierarchical modeling framework for paleo-environmental data
We looked at biomarkers in mangrove sediment from a paleo sea-level perspective. Read more here 👇
www.sciencedirect.com/science/arti...
www.sciencedirect.com/science/arti...
Taraxerol abundance as a proxy for in situ mangrove sediment
Mangrove sediments are valuable archives of relative sea-level change if they can be distinguished in the stratigraphic record from other organic-rich…
www.sciencedirect.com
March 26, 2024 at 11:37 PM
We looked at biomarkers in mangrove sediment from a paleo sea-level perspective. Read more here 👇
www.sciencedirect.com/science/arti...
www.sciencedirect.com/science/arti...
AGU schm-AGU..? EGU schm-EGU..?
How about AOGS in 2024?!
We've got a session in Ocean Sciences:
'Past, present, and future sea-level change in Asia, Oceania, and beyond'
See you in South Korea!
How about AOGS in 2024?!
We've got a session in Ocean Sciences:
'Past, present, and future sea-level change in Asia, Oceania, and beyond'
See you in South Korea!
December 20, 2023 at 3:22 AM
AGU schm-AGU..? EGU schm-EGU..?
How about AOGS in 2024?!
We've got a session in Ocean Sciences:
'Past, present, and future sea-level change in Asia, Oceania, and beyond'
See you in South Korea!
How about AOGS in 2024?!
We've got a session in Ocean Sciences:
'Past, present, and future sea-level change in Asia, Oceania, and beyond'
See you in South Korea!
Hello AGU-ers!
We're doing a PALSEA working group meet up on Monday 11th December at Zeitgeist bar from 7 pm.
Everyone is welcome - see you there!
We're doing a PALSEA working group meet up on Monday 11th December at Zeitgeist bar from 7 pm.
Everyone is welcome - see you there!
December 8, 2023 at 4:19 PM
Hello AGU-ers!
We're doing a PALSEA working group meet up on Monday 11th December at Zeitgeist bar from 7 pm.
Everyone is welcome - see you there!
We're doing a PALSEA working group meet up on Monday 11th December at Zeitgeist bar from 7 pm.
Everyone is welcome - see you there!
When your job is mud kitchen !
(pictured: mangrove sediment samples from Sāmoa getting ready for radiocarbon dating)
(pictured: mangrove sediment samples from Sāmoa getting ready for radiocarbon dating)
November 28, 2023 at 7:34 PM
When your job is mud kitchen !
(pictured: mangrove sediment samples from Sāmoa getting ready for radiocarbon dating)
(pictured: mangrove sediment samples from Sāmoa getting ready for radiocarbon dating)
Reposted by Juliet Sefton
Upping an official IGCP 725 post from the other site:
We are pleased to announce our third installment of the free & fully virtual Geochron January! This time focused on Mining the Historical Record of Coastal Change.
Details: sfu.ca/igcp-725/upc...
Registration: tinyurl.comigcp-gjiii
We are pleased to announce our third installment of the free & fully virtual Geochron January! This time focused on Mining the Historical Record of Coastal Change.
Details: sfu.ca/igcp-725/upc...
Registration: tinyurl.comigcp-gjiii
November 20, 2023 at 8:28 PM
Upping an official IGCP 725 post from the other site:
We are pleased to announce our third installment of the free & fully virtual Geochron January! This time focused on Mining the Historical Record of Coastal Change.
Details: sfu.ca/igcp-725/upc...
Registration: tinyurl.comigcp-gjiii
We are pleased to announce our third installment of the free & fully virtual Geochron January! This time focused on Mining the Historical Record of Coastal Change.
Details: sfu.ca/igcp-725/upc...
Registration: tinyurl.comigcp-gjiii
Reposted by Juliet Sefton
@drandreadutton.bsky.social The Washington Post ran a huge interactive piece on your work about how fossil corals let us understand past sea level rise.
Gift link so everybody can skip the paywall for the next couple weeks.
wapo.st/3QIXYDN
Gift link so everybody can skip the paywall for the next couple weeks.
wapo.st/3QIXYDN
Ancient warning of a rising sea
Fossil coral reefs in the islands of the Seychelles may indicate where sea level rise will be felt the hardest as human-caused climate change impacts the world’s oceans.
wapo.st
November 17, 2023 at 2:45 PM
@drandreadutton.bsky.social The Washington Post ran a huge interactive piece on your work about how fossil corals let us understand past sea level rise.
Gift link so everybody can skip the paywall for the next couple weeks.
wapo.st/3QIXYDN
Gift link so everybody can skip the paywall for the next couple weeks.
wapo.st/3QIXYDN
Attention Quaternary ECRs in Australasia: the AQUA mentoring program for 2024 is still accepting sign ups!
See here.. aqua.org.au/2024-mentori...
See here.. aqua.org.au/2024-mentori...
2024 Mentoring Program – Australasian Quaternary Association (AQUA)
aqua.org.au
November 13, 2023 at 4:06 AM
Attention Quaternary ECRs in Australasia: the AQUA mentoring program for 2024 is still accepting sign ups!
See here.. aqua.org.au/2024-mentori...
See here.. aqua.org.au/2024-mentori...