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Henry Patton

@rhewlif.xyz
1.4K followers 976 following 91 posts

Glacial scientist & map nerd. Based in Tromsø, Arctic Norway ⛷️ Interested in research questions related to the reconstruction of ice sheets during past ice ages and how they impacted their environment.

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Henry Patton @rhewlif.xyz · 16/10/2026
Results indicate the absence of beryllium input from the North Atlantic during late MIS6 and MIS4. The Arctic was thus effectively decoupled from the global ocean, implying major reorganizations of deep-water circulation and chemistry. 👉 doi.org/10.1038/s432...
10Be/9Be ratios (this study), neodymium and hafnium isotopes and Sr isotopes20,21 of PS2185-6 sediment leachates. Green shaded rectangle and blue shaded rectangle respectively denote MIS4 and MIS6 low 10Be/9Be episodes.
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Henry Patton @rhewlif.xyz · 16/10/2026
In this latest study we tested this isolation hypothesis by measuring the reactive 10Be/9Be ratio in a suite of cores. This beryllium isotope ratio is a reliable water mass tracer that can reconstruct the dominant water inflows, from either from the North Atlantic or and from Arctic rivers.
Panel a shows reactive 10Be/9Be during high 230Thxs and panel b) during low 230Thxs-intervals from Geibert et al. (2021) (respectively assigned to MIS5e and late MIS6 according to Geibert et al. and after the age models of Hillaire-Marcel et al.). Reactive 10Be/9Be ratios displayed are all from this study, except for core MD95-201631. The endmembers—North Atlantic, Pacific, Mackenzie and Siberian rivers—are displayed as arrows - colored according to their known modern 10Be/9Be signatures which are also indicated in bold numbers (Units: at/at × 10-8). The blue question mark in the right panel highlights the unknown state of the Ob and Yenisei rivers during MIS6 potentially blocked by ice sheets. In this map, we show the maximum 10Be/9Be value for MIS5e, and the minimum for MIS6. The full 10Be/9Be profile of each core is also shown in Fig. S1. The outlier in the b panel in PS87/030-1 can be explained by a possible hiatus of late MIS6, described by Song et al. and further explained in the Supplementary Information. AO, NS, LR, BS and NA stand respectively for Arctic Ocean, Nordic Seas, Lomonosov Ridge, Barents Sea and North Atlantic. GSR and the associated grey dashed line marks the Greenland Scotland Ridge. The blue shaded area in panel b displays the MIS6 maximum extent of the ice sheet, which does not take ice grounding traces and a floating shelf ice into account.
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Henry Patton @rhewlif.xyz · 16/10/2026
Could an entire ocean turn from salty to fresh? It has been proposed that the Arctic Ocean and Nordic Seas were not only episodically covered by an ice shelf during past ice ages, but disconnected from the North Atlantic and filled with freshwater.
The maximum version of the “late Würm Arctic Ice Sheet” (LGM) by Hughes et al. (1977), which includes a 1-km thick ice shelf in the Arctic Ocean. Note that all the Arctic Ocean continental shelves are glaciated including that of the East Siberian, and Chukchi seas. (Jakobsson et al. 2014)
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Henry Patton @rhewlif.xyz · 08/10/2025
Wow, that didn't take long to disappear! This was one of the glaciers I visited as an MSc student in 2006.
Bas glacier d'Arolla in September 2006
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Henry Patton @rhewlif.xyz · 04/09/2025
We dropped in on Santa Claus at the north pole this week to get our wish lists in early! To celebrate reaching 90N - the first time unaided for the Kronprins Haakon - we had ourselves a BBQ followed by a football match on the ice.
Santa Claus and crew member on an ice floe at the north poleHenry Patton in front of the ship Kronprins Haakon Crew having a BBQ on Kronprins HaakonPlaying football on ice at the north pole
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Henry Patton @rhewlif.xyz · 25/08/2025
One week into the @i2b-erc.bsky.social cruise and sediment cores are coming in thick and fast, guided by some fantastic sub-bottom profiler data. The question is, how old are these sediment layers?
Group photo just before deparature in front of RV Kronprins HaakonScientists carrying a section of core from the ship deck.Myself and Peter at our workstations, processing the incoming acoustic dataExample of a sub-bottom profile along our ship track showing many sediment layers.
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Henry Patton @rhewlif.xyz · 16/08/2025
An exciting expedition awaits! Our home for the next 5 weeks as we head into the frozen Arctic Ocean to collect new palaeo archives.
Kronprins Haakon research vessel docked in Longyearbyen
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Henry Patton @rhewlif.xyz · 04/05/2025
Still a lot of snow across northern Norway - good for spotting the locations of old ice streams 😀
Snow covered landscape as seen from a plane window, showing some streamlined landforms.
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Henry Patton @rhewlif.xyz · 26/03/2025
📣 Registration has just opened for the 6th (and final) PalaeoArc conference in Tromsø, Norway. Low fees, and a fantastic opportunity for PhD/MSc/BSc students with accomodation, dinner and excursion also included. site.uit.no/palaeoarc2025 Be quick, registration closes April 15th! ⚒️
Welcome to the 6th International PalaeoArc Conference. 2-5 June 2025, Dept. of Geosciences, UiT.
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Henry Patton @rhewlif.xyz · 21/03/2025
The 2025 NORDQUA excursion will visit Gdańsk, Poland, 17-19 Sept. Three full days will cover the origin and evolution of glacial landforms, sediments and lakes, as well as processes of past and present coastal hazards in the Baltic coast. Sign up by the end of April! forms.gle/vZ4ECaVMxpfy... ⚒️
NORDQUA Excursion to Northern Poland
Gdańsk, September 17–19, 2025

We are pleased to invite all of you to this year’s NORDQUA excursion, which will take place in northern Poland from the morning of the 17th to the afternoon of the 19th of September. Three full days of field excursion will be filled with topics related to the origin and evolution of glacial landforms, sediments and lakes, as well as processes of past and present coastal hazards in the southern Baltic coast. We are going to show and discuss interesting field sites (sediment outcrops, landscape views, drilling sites) located in the Gdańsk area, close to the Baltic seacoast. You are expected to arrive to Poland September 16th in order to be able to participate in the excursion from the morning of the 17th. Students will have the opportunity to receive 2 ECTS points based on participation in the excursion and written report.

Important information:
• to register, please fill-in the following form: https://forms.gle/vZ4ECaVMxpfyGGFXA,
• the estimated fee will not exceed 400-450 PLN and it will cover: participation, materials, bus during the excursion and lunch-packs,
• the exact amount of the fee depends on the number of participants and funding received – it will be announced in May, together with account data for bank transfer,
• the deadline for registration is the end of April,
• the detailed program of the excursion will be released in May in the second circular,
• if you have any questions, write to: nordqua2025@gmail.com.

Local organizing committee:
Karol Tylmann (University of Gdańsk)
Damian Moskalewicz
Patryk Sitkiewicz
Piotr P. Woźniak
Olga Reutt
Łukasz Elwirski
Piotr Hermanowski
Mirosław Błaszkiewicz
Anna Hrynowiecka
Paweł Tysiąc
Ewelina Lipka
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Henry Patton @rhewlif.xyz · 26/11/2024
Here in Kirkenes the sun set today for the last time this year. See you again in January! 🌄
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Henry Patton @rhewlif.xyz · 12/11/2024
A moment of tranquillity while sailing through broken sea ice.
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Henry Patton @rhewlif.xyz · 18/10/2024
A simplified version of the Barents Shelf landscape evolution is also included on the interactive Icemap website at icemap.rhewlif.xyz
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Henry Patton @rhewlif.xyz · 18/10/2024
The power of ice...⚒️ Over the last 2.7 million years, ice sheets eroded ~3.7 quadrillion tons of rock from the Eurasian Arctic to create the Barents Sea we know today. 👀 Further erosion insights and timeslices ➡️ doi.org/10.1016/j.ea...
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Henry Patton @rhewlif.xyz · 02/09/2024
I've noticed this figure of LGM extents gets re-used quite a lot in presentations etc. Since I was updating the map and its sources for another project, here is the latest iteration for people to enjoy ⚒️ 🗺️ doi.org/10.6084/m9.f...
A map of maximum glacial extents reached by the ice sheets that covered the northern hemisphere during the Last Glacial Maximum between ~27-19 ka BP. Note that these glacial limits are not time-equivalent, and rather reflect the maximum limit of glaciation during the peak of the last ice age. The map is compiled from various studies that have synthesised and interpreted vast amounts of empirical data, details of which can be found at https://doi.org/10.6084/m9.figshare.26862304.v1. Where possible, 'most-credible'/'optimal' etc. extents have been used.
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Henry Patton @rhewlif.xyz · 15/08/2024
#Methane release hotspots discovered in the central Barents Sea are releasing ~9,803 tonnes of CH4 per year into the water column Geological and glaciological controls show how these 21,700 natural seeps are likely to continue leaking. 📖 doi.org/10.3389/fear...
P-Cable 2D seismic data and multibeam echosounder data showing evidence of gas accumulations and leakage into the water column on the Kong Karl platform.
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Henry Patton @rhewlif.xyz · 15/05/2024
📣 NEW POSTDOC OPPORTUNITY at iC3⚒️ "How do ice sheets impact fluid dynamics beyond present-day ice margins in #Antarctica and/or #Greenland and ocean carbon cycling?" - fully funded #postdoc - friendly polar science team PLEASE SPREAD THE WORD ->>> ic3.uit.no/job/postdoc-...
Postdoc position in the Arctic
Polar ice and ocean carbon cycling
The overall aim of the project is to constrain the impact of glacial dynamics on fluid transport and release beyond present day ice-sheet margins in Antarctica and/or Greenland and their potential impacts on ocean carbon cycling.
The applicant must document significant experience with seismic data processing and interpretation, as well as integrated geophysical and geological data analyses.
This postdoctoral position is open to qualified applicants of all nationalities.
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Henry Patton @rhewlif.xyz · 07/05/2024
iC3 in Tromsø are hiring a #postdoc Investigate how the Antarctic ice sheet impacts Southern Ocean plankton ecosystems & productivity. ic3.uit.no/job/postdoc-... Please repost and help someone to find their dream job with our polar research centre here in the #Arctic. ⚒️
We are hiring a postdoc.
Antarctic ice, nutrients & diatoms
Are you passionate about polar research, oceans and climate?
Want to investigate how the Antarctic ice sheet impacts Southern Ocean plankton ecosystems and productivity?
Come join the friendly iC3 team.
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Henry Patton @rhewlif.xyz · 26/01/2024
Polar research centre iC3 officially launches today. For the next ten years, 50+ scientists in Tromsø, Norway, will tackle five of the biggest questions in polar science. A unique hub of polar expertise involving UiT, NPI & NORCE. Congratulations! 🧪 ic3.uit.no
iC3 is tackling five of the biggest questions in polar scienceDirector Jemma Wadham and assistant director Monica Winsborrow together with head of groundbreaking research at Forskningsradet Petter Helgesen, with the new SFF plaque for iC3
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Henry Patton @rhewlif.xyz · 12/11/2023
It's the end of a fantastic week on Svalbard teaching the Quaternary postgrads at UNIS about ice sheet reconstruction and modelling. It's been very inspiring to work with so many engaged students from all corners of the globe, and even the Aurora Borealis said hello.
Northern Lights above LongyearbyenBlackboard with mindmaps of what students have learnt about Quaternary ice sheet reconstructionA gang of reindeers looking for grass under the snow in LongyearbyenLongyearbyen in twilight
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Henry Patton @rhewlif.xyz · 05/11/2023
The chillest reindeer on Svalbard
A Svalbard reindeer in Longyearbyen looking into a camera a metre away
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Henry Patton @rhewlif.xyz · 15/09/2023
All tuckered out after a long play session 😻
Issa the cat asleep on a wool blanket while cuddling one of her favourite toys
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Henry Patton @rhewlif.xyz · 12/09/2023
Of all the glacial landforms in Fnjóskadalur, N Iceland, the Austari-Krókar delta is the most impressive ⚒️ Following the formation of an ice-dammed lake in the valley sometime around the Younger Dryas, glacial runoff produced this large delta, filling an 800 m-wide gap in the Ásar-esker below
The Austari-Krókar delta in Fnjóskadalur, viewed from belowView from the Austari-Krókar delta in Fnjóskadalur, down to the Ásar-esker it cuts throughView from the top of the Austari-Krókar delta in FnjóskadalurTwo people in the distance walking along the top of the Austari-Krókar delta in Fnjóskadalur
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Henry Patton @rhewlif.xyz · 31/08/2023
This week I got to vist perhaps Iceland's best kept geological secret - the Tjörnes section ⚒️ 🇮🇸 Here 14 cycles of glacial and interglacial sediments can be found dating back to 2.5 Ma, with each sequence subsequently preserved by a cap of lava
A person standing at the bottom of a cliff section, next to marine sedimentsAlternating layers of interglacial and glacial sediments, preserved by a cap of lavaBeach view of the Tjörnes sequence with a waterfall
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Henry Patton @rhewlif.xyz · 25/08/2023
Wonderful views of Vatnajökull while flying into Reykjavik today 🤩
View of Vatnajökull outlet glaciers from an airplane window
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Henry Patton @rhewlif.xyz · 22/08/2023
Back in Trosmø and autumn feels closer. Plenty of mushrooms in the forest, plus some surprised reindeers on the summit of Njunnásčohkka, next to the Lyngen Alps
Silhouette of three reindeers on a mountain slopeView of a mountain-side with a landslide scar and fjord at it's basePerson admiring a mountain summit rising in the distance, with a valley floor visible belowLarge mushroom growing on the forest floor amongst grass and next to a trail
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Henry Patton @rhewlif.xyz · 30/06/2023
The Barents Sea, north of Norway, is younger than you probably think. New topographic reconstructions show that this shelf was still subaerial around 2.7 million years ago! Profound glacial erosion during subsequent ice ages reshaped this Arctic landscape into the marine setting we know today 🧪
A 3D conceptual model of Atlantic–Arctic water circulation at the onset of Quaternary (c. 2.7 Ma) versus today.
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Henry Patton @rhewlif.xyz · 28/06/2023
Debris from WW2 still scatters the mountains around northern Norway. Last night we came across this wreckage, the remains of an Allied plane that was shot down over 80 years ago while it was attacking German shipping in Kirkenes.
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Henry Patton @rhewlif.xyz · 27/06/2023
Golden nights in the Arctic. Kirkenes
Silhouette of the harbour front in Kirkenes during sunset and mountains in the background A calm lake showing the reflection of a bedrock ridge behind and an observer standing on the left hand side Silhouette of a perched boulder with the sun setting behind it Close view of Milkweed plant against a dark blue background
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Henry Patton @rhewlif.xyz · 06/06/2023
Patiently waiting for a free lap to sit on
Cat sitting on a sofa facing the camera
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Henry Patton @rhewlif.xyz · 03/06/2023
Brosmortinden, Kvaløya, Norway.
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Henry Patton @rhewlif.xyz · 31/05/2023
How fast can ice sheets collapse? A rare beaded-esker system recently found on the seafloor in the Arctic suggests ice retreated here at rates of between 580-1600 m per year at the end of the last ice age. 👀 www.frontiersin.org/articles/10.338…
(A) Transects along the Hopendjupet beaded-esker system (separated by a gap in multibeam bathymetry data coverage), used to constrain annual retreat rates of the collapsing Barents Sea ice sheet. (B) Closer view of esker beads in Transect 2, highlighting their placement within and adjacent to the tunnel valley. (C) Ice-retreat rates through transect 1, with mean values indicating a general deceleration upstream. (D) Ice-retreat rates through transect 2, highlighting continued deceleration.
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