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EGU23 – by the numbers
  • EGU news
  • 3 May 2023

Thanks to the enthusiastic efforts of our members and volunteers, EGU23 reached an amazing 18,831 people at the General Assembly, both in Vienna and online!

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Highlight articles

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Hyperspectral imaging sediment core scanning tracks high-resolution Holocene variations in (an)oxygenic phototrophic communities at Lake Cadagno, Swiss Alps

This study shows, for the first time, that hyperspectral imaging can detect bacteriochlorophyll pigments produced by green sulfur bacteria in sediment cores. We tested our method on cores from Lake Cadagno, Switzerland, and were able to reconstruct high-resolution variations in the abundance of green and purple sulfur bacteria over the past 12 700 years. Climate conditions, flood events, and land use had major impacts on the lake’s biogeochemical conditions over short and long timescales.

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Rate-induced tipping in natural and human systems

Complex systems can undergo abrupt changes or tipping points when external forcing crosses a critical level and are of increasing concern because of their severe impacts. However, tipping points can also occur when the external forcing changes too quickly without crossing any critical levels, which is very relevant for Earth’s systems and contemporary climate. We give an intuitive explanation of such rate-induced tipping and provide illustrative examples from natural and human systems.

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Contribution of solitons to enhanced rogue wave occurrence in shallow depths: a case study in the southern North Sea

Rogue waves exceed twice the significant wave height. They occur more often than expected in the shallow waters off Norderney. When applying a nonlinear Fourier transform for the Korteweg–de Vries equation to wave data from Norderney, we found differences in the soliton spectra of time series with and without rogue waves. A strongly outstanding soliton in the spectrum indicated an enhanced probability for rogue waves. We could attribute spectral solitons to the measured rogue waves.

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Latest posts from EGU blogs

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GeoPolicy: Life inside the European Parliament – an assistant’s view

This month’s GeoPolicy blog features an interview with Sebastian Jehle, Accredited Assistant to Member of the European Parliament (MEP) Norbert Lins. Understanding policymaking processes is vital to be able to engage with decision-makers and to provide scientific information that is both useful and timely. Sebastian was kind enough to answer some of my burning questions about life inside the European Parliament, the role he plays, how he receives and uses information, as well as some of the key lessons he’s …

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Hidden Ice of the Greater Caucasus

In this week’s blog, Levan Tielidze tells us about the first inventory of rock glaciers from the Greater Caucasus as an important basis for further research of geomorphology and palaeoglaciology in this region. What are Rock Glaciers? Rock glaciers are distinctive geomorphological landforms of frozen debris that are supersaturated with ice. The low ice velocity or certain speed of movement and permafrost must be present to create rock glaciers normally at high latitudes and/or elevations with cold climate conditions. Unlike …

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The Sassy Scientist – A survival guide for grant writing

Well, well, well, what do we have in here? Is that another fellow geoscientist going after a fund? Yes, seems like it. First of all good luck mate, a tough journey is ahead of you. I hope you have a lucky item with you to keep you alive during this period. So this time we have Boris asking: How do I secure funding? Dear Boris, Now, let’s get real. Securing funding for your research is like finding a rare gem …

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