iiinova — where your digital self keeps evolving

Frederik Schenk @freddyschenk.bsky.social · 07/10/2026

📢 New publication & insane amount of compiled data Martínez-Abarca et al. 2026: Beyond the Intertropical Convergence Zone: A regional synthesis of Late Pleistocene hydroclimate in the northern Tropical Americas | sciencedirect.com/science/arti... Amazing work by @rodrigo-martinez-a.bsky.social 👏

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Frederik Schenk @freddyschenk.bsky.social · 23/08/2026

#Globalwarming doesn't stop without cutting CO2 emissions. "24 hours for the climate" in Stockholm ended with a huge march to the parliament today. Over 50.000 participants, 280 registered organisations & scientists from all over Sweden sent a kind reminder. The march was non-partisan.

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Frederik Schenk @freddyschenk.bsky.social · 01/08/2026

Stockholm Pride 2026 🏳️‍🌈 at Sergels Torg.

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Frederik Schenk @freddyschenk.bsky.social · 22/07/2026

Noctilucent Clouds over Stockholm on 20 July 2026. These Polar Mesospheric Clouds (PMCs) are the highest clouds on Earth at ~80 km altitude. They form from small ice crystals where the water stems from Methane reacting with hydroxyl radicals (OH) + dust particles of unknown origin (micrometeors?)

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Frederik Schenk @freddyschenk.bsky.social · 27/06/2026

After a thunderstorm moved through at the (current) end of a major heatwave, quasi-stationary convection remained at the coast for almost an hour with impressive clouds. With stronger convection igniting deep convection further inland, the coastal convergence collapsed.

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Frederik Schenk @freddyschenk.bsky.social · 27/06/2026

Coastal convergence event after a thunderstorm at the North Sea. Sankt Peter-Ording #SPO, Germany.

Beginning and termination of quasi-stationary convection clouds due to coastal convergence at the North Sea coast.

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Frederik Schenk @freddyschenk.bsky.social · 28/05/2026

View from Riddarholmen to the south on Mariaberget.

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Frederik Schenk @freddyschenk.bsky.social · 28/05/2026

The beauty of Stockholm at 22h after a day of heavy storms. View from the Mariaberget cliff / Monteliusvägen (Södermalm) to the north with city centre & town hall.

View from the Mariaberget cliff / Monteliusvägen (Södermalm) to the north with city centre & town hall.

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Frederik Schenk @freddyschenk.bsky.social · 08/10/2025

Das ist richtig für die Mittelwerte. Richtig sibirisch würde es unter heutigen Bedingen v.a. in Skandinavien. Dies hängt davon ab, wie weit das Meereis nach Süden vorstößt. Bemerkenswert ist, dass selbst mit deutlich erhöhten CO2-Werten (580 ppm, RCP4.5) das Meereis weit nach Süden reicht.

Simulierter AMOC Kollaps vor-industriell und unter RCP4.5 (580 ppm) CO2. Paper: https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2025GL114611

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Frederik Schenk @freddyschenk.bsky.social · 15/08/2025

The @bolincentre.bsky.social is happy to co-sponsor the 1st Swedish Biodiversity Symposium, 21 - 23 October 2025, in Gothenburg. Early bird registration ends Monday August 18. More information and registration here: swedishbiodiversitysymposium.se

The first Swedish Biodiversity Symposium will be held in Gothenburg.

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Frederik Schenk @freddyschenk.bsky.social · 28/07/2025

📣 Open position for a PhD student in Arctic Aeolian Processes & Paleoclimate at the Department of Geological Sciences @stockholm-uni.bsky.social with closing date 15 August 2025. Collaborators: Uppsala University, Sweden & University of Santiago de Compostela, Spain 🧪⚒️ su.varbi.com/en/what:job/...

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Frederik Schenk @freddyschenk.bsky.social · 21/06/2025

And there is no urban heat island #UHI on the mountain (989 m above sea-level) of Hohenpeißenberg (1781-2024) in my home region of southern Germany.

Temperature anomalies Hohenpeißenberg 1781-2024

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Frederik Schenk @freddyschenk.bsky.social · 21/06/2025

And #ShowYourStripes for Helsinki (1829-2024) where I'm currently as visiting scientist @geohelsinkiuni.bsky.social

Temperature anomalies Helsinki 1829-2024

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Frederik Schenk @freddyschenk.bsky.social · 29/04/2025

Key paper by Carl Regnéll @bolincentre.bsky.social @stockholm-uni.bsky.social on annual retreat rates for the demise of the Fennoscandian Ice Sheet: Anchoring the Swedish Time Scale to the radiocarbon time scale —An absolute age for De Geer’s zero varve pubs.geoscienceworld.org/gsa/geology/... 🧪

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Frederik Schenk @freddyschenk.bsky.social · 27/02/2025

PhD position in history with focus on climate history @stockholm-uni.bsky.social and @bolincentre.bsky.social with Prof. Ljungqvist: "Adaptations to climate change in the northern Baltic region ca 1500–1900". More info here: su.se/english/rese... (deadline 15.03.2025) 🧪🌍 #ScienceJobs

Sleigh in a snow storm, Gustaf Brandelius 1878. County Museum of Gävleborg through Digitalt museum.

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Frederik Schenk @freddyschenk.bsky.social · 18/10/2024

This could also be generated by AI but is actually real: #flooding #Paris 🌧️ 📷 Gaizka Iroz #AFP

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Frederik Schenk @freddyschenk.bsky.social · 18/10/2024

I was looking into some quotes by #Kafka with the help of #Copilot. It also draw some pictures about them. Fascinating, but also a world you don't want to live in nor the brain you aim for.

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Frederik Schenk @freddyschenk.bsky.social · 08/03/2024

We're organizing the 5th International #PalaeoArc Conference in Stockholm, 27-29 May 2024. Abstract deadline: 18 March 2024: su.powerinit.com/Data/Event/E... Conference hosted by @bolincentre.bsky.social, Stockholm University, the Natural History Museum and the Royal Swedish Academy of Sciences.

Processes and Palaeo-Environmental changes in the Arctic: From Past to Present. https://palaeoarc.no/

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Frederik Schenk @freddyschenk.bsky.social · 10/02/2024

Dear Mae, can you please add me? Thanks! Google Scholar‬ scholar.google.com/citations?us...

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Frederik Schenk @freddyschenk.bsky.social · 09/02/2024

An older study simulated a recovery from the cooling after 15-20 years for the global mean and global warming would then continue with further increasing CO2. Competition between global warming and an abrupt collapse of the AMOC in Earth’s energy imbalance | www.nature.com/articles/sre...

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Frederik Schenk @freddyschenk.bsky.social · 09/02/2024

My research derived from own publications using #scholargoggler. Fits really well. t.co/0Sl2DqZgOo

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Frederik Schenk @freddyschenk.bsky.social · 27/01/2024

Open position for a PhD student in Paleoclimatology at the Department of Geological Sciences, Stockholm University, with closing date 29 February 2024. The topic focuses on reconstructing past storminess & includes fieldwork in the Norwegian Arctic, Sweden & Norway. www.su.se/english/abou...

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Frederik Schenk @freddyschenk.bsky.social · 05/12/2023

In meiner Simulation für einen teilweisen Kollaps der Meeresströmung ergibt sich sogar eine Erwärmung im Sommer durch blockierende Hochdruckwetterlagen wie 2018. In der Simulation nimmt der Niederschlag bis zu 50% ab in Europa vor 12,000 Jahren (Younger Dryas). Sehr ähnlich zu 2018...

Unterbrechung des Nordatlantikstroms (AMOC) vor ca. 12,000 Jahren bewirkt in einer hochaufgelösten Simulation warme Sommer durch blockierende Hochdruckwetterlagen wie im Jahr 2018. Extreme Trockenheit ist die Folge.

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Frederik Schenk @freddyschenk.bsky.social · 20/11/2023

Das Problem ist nicht die Erwärmung, sondern deren Geschwindigkeit. Rechnet man die Erwärmung pro Zeit isotherm in Kilometer pro Zeit um, wird deutlich, dass viele Pflanzen die Anpassung durch Migration in Kilometer pro Zeit nicht mehr schaffen. The velocity of climate change | Nature

Figure 3: The velocity of temperature change by biome. A map of biomes and histograms of the speed of temperature change within each biome. Histograms are ordered by increasing velocity according to their geometric means.

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Frederik Schenk @freddyschenk.bsky.social · 16/11/2023

The Bolin Centre for Climate Research @bolincentre.bsky.social found its way to Blue Sky. Please follow us if you're interested in new research and vacant positions dealing with fundamental sciences around climate and Earth system from the deep past to the future.

The Bolin Centre for Climate Research has now joined Blue Sky. You can follow us here now @bolincentre.bsky.social

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Frederik Schenk @freddyschenk.bsky.social · 10/11/2023

As shown from comparing surface samples from soils, peat and lake sediments, the isomerization of H-GDGTs (IR_H) can be used to distinguish brGDGT source shifts. In the core without such source shifts, a long-term warming trend on Sumatra agrees well with climate models for the past 8000 years.

Comparisons of reconstructed proxy temperature anomalies with transient climate model simulations over Sumatra for the Holocene.

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Frederik Schenk @freddyschenk.bsky.social · 25/10/2023

As expected, low-frequent variability is most dominant in high norther latitudes. In an upcoming study, we will show that sea-ice does indeed amplify variations but it is not essential: Oscillations continue to exist without sea-ice. However, internal variability will change with global warming.

Internal variability of annual mean temperatures in the 150-250 year frequency band are most prominent in high northern latitudes with a magnitude of up to over 1 K change within one or two cycles. While sea-ice is amplifying oscillations, it is mainly driven by salinity and persists even without sea-ice under very high CO2-levels.

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