Sophie Warken

We are excited about the "Meeting & Status Seminar 2025" of the @dfg.de #SPP2299 Priority Programme "Tropical Climate Variability & Coral Reefs", which starts Monday at @unibremen.bsky.social. 55 researchers, from 15 German institutions and international guests, will discuss latest research results

50 Jahre Umweltphysik an der Universität Heidelberg – Wegweisende Forschung zum Fluss von Energie und Materie in der Umwelt
www.uni-heidelberg.de/de/newsroom/...
#universität #heidelberg #uniheidelberg #umweltphysik #klima #erde #forschung #jubiläum

S4 Speleothem Summer School The summer school on speleothem science (S4) organizes events for those new to speleothem science.

📢 The deadline to attend the 6th Summer School on #Speleothem Science (S4) in Morocco from 20-26 October 2025 has been extended to 30 May 2025!
👉 www.speleothemschool.com

Just came back from #KR10 in 🇿🇦 #capetown 🇿🇦 - what a great conference with amazing people and exciting research!! A huge thank you to @pickeringrobyn.bsky.social and her team for the organization! Hope to see you all for #KR11 in 🇲🇽 Mexico 🇲🇽 !!!

Climate-change induced human migration and socio-political changes in eastern India during the Meghalayan age The Holocene climate records, available from the Indian subcontinent are in fragments, majority having low temporal resolution and illustrate regional…

‼️New paper‼️ out in Palaeogeography, Palaeoclimatology, Palaeoecology:

„Climate-change induced human migration and socio-political changes in eastern India during the Meghalayan age“ www.sciencedirect.com/science/arti...

Happy we could contribute by resolving the challenging chronology!!!

Happy to see that our recent work has been featured in this article out now in @eos.org !!

With the threats being levied against NOAA, I felt it was time to download all the sediment core and paleoceanography data being stored on NOAA's NCEI, just in case. I have uploaded the script to Github, just in case anyone wants to do the same! 🧪 ⚒️ 🦣 🌊

github.com/evangowan/EJ...

High-resolution palynological evidence for vegetation response to the Laacher See eruption from the varved record of Meerfelder Maar (Germany) and other central European records The Laacher See eruption (LSE) was one of the larger Plinian eruptions of the late Quaternary in Europe. Distal tephra deposits of the LSE are found i…

Thanks! Speleothems are not the ideal archive for this, but @palaeostefan.bsky.social has done some great work on this, e.g. ➡️ www.sciencedirect.com/science/arti...

Tropfstein und Eisbohrkerne: Natürliche Klimaarchive bieten neue Einblicke in Klimageschichte Mitteleuropas
Die Verknüpfung von Daten aus zwei natürlichen Klimaarchiven – einem Tropfstein aus der hessischen Herbstlabyrinth-Höhle und Eisboh...
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Blick in die Herbstlabyrinth-Höhle (Foto/©: Ingo Dorsten, Speläologische Arbeitsgemeinschaft Hessen e.V.)

Neuer Wegweiser für die #Klimaforschung: Zeitskalen zum Ausbruch des Laacher-See-Vulkans synchronisiert / Späteiszeitliche Klimaveränderung der Jüngeren Dryaszeit keine Folge des Vulkanausbruchs / Forschung von #UniMainz und @uniheidelberg.bsky.social 👉 presse.uni-mainz.de/neuer-wegwei...

Tropfstein und Eisbohrkerne: Natürliche Klimaarchive bieten neue Einblicke in Klimageschichte Mitteleuropas – Wissenschaftler aus Heidelberg und Mainz können verheerenden Vulkanausbruch präzise datieren – Keine Ursache für plötzlich einsetzende Kälteperiode ... www.uni-heidelberg.de/de/newsroom/...

P.S. Honored that our work was chosen as the cover story for the current issue! 🏔️🧊 www.science.org/toc/sciadv/1...

Read also the press release here www.uni-heidelberg.de/en/newsroom/...

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Key findings:

➡️ The Younger Dryas cooling started c. 150 years after the eruption
➡️ Climate change propagated rapidly from the North Atlantic to central Europe
➡️ Precise chronologies are so important for understanding past climate events and their relevance to current climate change!

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This is a team effort with my great colleagues from
@uniheidelberg.bsky.social and @unimainz.bsky.social

We discovered the LSE as sulfur spike in the speleothem. Absolute Th/U dating links the speleothem record with ice cores. As a result, we've precisely dated the LSE to 13,008 ± 8 years ago!

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Discovery of Laacher See eruption in speleothem record synchronizes Greenland and central European Late Glacial climate change A volcanic sulfur spike links the Laacher See eruption to Greenland ice cores and synchronizes the timelines to European records.

Excited to share our latest research published in @science.org #ScienceAdvances! 🎉
We've discovered the Laacher See eruption 🌋 in a speleothem from Germany, which allows to synchronize European and Greenland Late Glacial climate change.

Read more: www.science.org/doi/10.1126/...

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Technical note: “U–Th Analysis” – open-source software dedicated to MC-ICP-MS U-series data treatment and evaluation Abstract. We present our stand-alone data analysis application for 230Th/U dating with multi-collector inductively coupled plasma mass spectrometry (MC-ICP-MS). The Python-based algorithm is equipped ...

Great start 🚀 into 🌟🌟2️⃣0️⃣2️⃣5️⃣ 🌟🌟: the technical note in #Gchron describing our Th/U dating software is now available online ⬇️⬇️⬇️ gchron.copernicus.org/articles/7/1...
happy new year to everyone!

Dripstones Offer Insights into Climate Dynamics in Europe – Geoscientists study stalagmites in Romanian cave to reconstruct regional precipitation patterns...
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Tropfsteine geben Auskunft über die Dynamik des Klimas in Europa – Geowissenschaftler untersuchen Stalagmiten in rumänischer Höhle, um regionale Niederschlagsmuster zu rekonstruieren...
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Dripstones Offer Insights into Climate Dynamics in Europe – Geoscientists study stalagmites in Romanian cave to reconstruct regional precipitation patterns
News now available ➡️➡️➡️https://www.uni-heidelberg.de/en/newsroom/dripstones-offer-insights-into-climate-dynamics-in-europe

For #speleothem experts: We use trace elements (Mg/Ca) to derive semi-quantitative cool season precipitation amount and combine that with stable isotopes 💪. The result shows: dynamic - (not thermodynamic) processes determine precipitation variability.

Dynamic processes determine precipitation variability in Eastern Central European since the Last Glacial Maximum Communications Earth & Environment - Dynamic atmospheric processes like the North Atlantic jet stream determine the variability of precipitation in Eastern Central Europe, according to analysis...

Excited to share our new paper!!!! 🎉🎉🎉Our publication out today in CEE uses a 20ka long speleothem record from Romania to study the link between 🌧️ variability in CE Europe and atmospheric dynamics. Interested??? Read more here ➡️➡️➡️➡️ 🌬️https://rdcu.be/dZVtJ

SISALv3: a global speleothem stable isotope and trace element database Abstract. Palaeoclimate information on multiple climate variables at different spatiotemporal scales is becoming increasingly important to understand environmental and societal responses to climate ch...

On behalf of the SISAL wg: the final version of the SISALv3 database and paper are published! 🎉 Paper in ESSD gives lots of context and synthesis of what is included. We look forward to seeing the DB in use. essd.copernicus.org/articles/16/...

#SPP2299 ClimateReefs is on its way to #EGU24! Keep your eyes out for some of our members!
@jannhargreaves.bsky.social @thomasfelis.bsky.social @swinnyy.bsky.social
Along with others not on Bluesky yet!

Watch this video to learn about SPP2299 - tropical climate variability & coral reefs🪸🐠🌊🌀🌪️☀️🌧️👩‍🔬🔬🗺️ - do you spot me ;) ???

Hello Paleo - blsky!!! First post - Check this exciting open postdoc position for 2 years with @nfrankinHD at @UniHeidelberg to work with cold water corals on the MPT! Application deadline closes soon…. adb.zuv.uni-heidelberg.de/info/INFO_FD...