Nick Scroxton
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stalagnick.bsky.social
Nick Scroxton
@stalagnick.bsky.social
Paleoclimatologist. Ringmaster @climatecircus. Stalagmite afficiando. he/him 🏳️‍🌈
U-Series sampling day. Taking those lovely polished stalagmites from last week and drilling out top and bottom powder samples so that we can date them and understand their growth history. 100mg should do the trick.
March 18, 2025 at 11:06 AM
Stalagmite Polishing Day! Getting these beauties nice and smooth so that we can identify the layering and choose the best locations for u-series sampling next week.
March 6, 2025 at 11:29 AM
The most impressive part of the improvement in weather forecasting was in 1991 when scientists managed to invent a time machine to go back and improve the five day forecast.

Either that or someone forgot to sort the columns by date before plotting.
February 20, 2025 at 10:35 AM
Can we use speleothem growth phases to trace the growth and decay of past ice-sheets? Our compilation of 1020 U-series dates from the UK and Ireland says Yes! Read all about it in our 📣New Paper📣 led by Sina Panitz, feat @speleoseb.bsky.social, myself and others, out now in Climate of the Past.
February 5, 2025 at 2:51 PM
We did find an abrupt isotopic enrichment 3.9-3.6 kyr BP. This ‘tropical climate shift’ is becoming more and more evident in high-res records and is temporally distinct to 4.2 (take note low res records), supporting previous work and the Double Drying hypothesis (Scroxton et al., 2023).
January 2, 2025 at 2:51 PM
In detail, we used a network of 14 high-res speleothems and some fancy stats (Laplacian Eigenmaps for Recurrence Matrices and Monte Carlo Principal Component Analysis). We find a robust 8.2ka event response, but 4.2 is not spatially coherent. Results hold for both East Asian and South Asian subsets.
January 2, 2025 at 2:51 PM
Kicking off the new year with a 📣New Paper📣 in Paleoceanography and Palecolimatology, led by Alexander James at USC, with Jun Hu, Julien-Emile Geay and others. In it we explore whether we can find regime changes in the Holocene Asian Summer Monsoons. We can for 8.2, but 4.2 falls short.
January 2, 2025 at 2:51 PM
📢New Paper📢 In our opinion piece "The Hunt for Holocene Abrupt Climate Change" in #PLOSClimate, Nick McKay and myself ask why are ACCs found easily in individual studies but not in compilations?

doi.org/10.1371/jour...
December 19, 2024 at 10:11 PM
Science of water in Ireland and management of water in Ireland. In one room! Collaborative vibes at An Fóram Uisce's (Irish Water Forum) conference today.
November 20, 2024 at 12:50 PM
Another recent new arrival. Let me get my bearings. In the meantime I have a pretty stalagmite picture for you.
November 12, 2024 at 5:31 PM