by Hanna Knahl
Figure 1 – This is how Antarctica might have looked like 90 Million years ago. Source: Alfred-Wegener-Institut / James McKay
“Rainforest in Antarctica” sounds like an April fool? Or like a climate apocalypse scenario for the future? It actually was real. Let’s go deep back in time to the fascinating epoch of the dinosaurs!
Climate Special – Theory
by Hanna Knahl
Several elements in our climate system are on the edge, e.g. the ice sheet in Greenland… Picture: Pixabay
Global warming should not exceed 1.5°C, according to the Paris Climate Agreement. Fridays for future and other climate activist groups are fighting for this. Why 1.5°C, actually?
by Ronja Gronemeyer
Merge or die – The fate of clouds and (covid restricted) cocktail parties
How the fate of simulated rain cells improves understanding of tropical storms. Stay tuned, as we learn about rain tracking algorithms and analyze the merging or decaying of competing clouds. Finally, we will see why cold pools affect cloud clustering similarly, as covid restrictions affect a cocktail party…
by Ronja Gronemeyer
Clouds can party hard!
Clouds like to cuddle and cluster. Cloud clustering is crucial to understanding the formation of tropical storms. This article will brush up your basics on convection, introduce you to fascinating atmospheric phenomena and reveal, how the clustering of clouds can be compared to a cocktail party…
by Christoph Kulmann and Greta Sondej
Fig. 1: With a bit of luck, you can see northern lights (Aurora borealis) in the night sky during the training week. Copyright © WikiImages 2012 / Pixabay
Long anticipated and eagerly awaited, our student training week starts in snowy Lapland near Sweden’s northernmost city: Kiruna (from the North Sami “giron”, meaning “snow grouse”).
Bremen Airport is already getting us in the mood for the weather that awaits us in Lapland…
An European Education Programme Empowers Students to Develop Their own Space Mission
by Greta Sondej and Christoph Kulmann
Fig. 1: Have you always wanted to send an experiment into space? In this case, the German-Swedish student programme REXUS/BEXUS is the right choice for you. Copyright © Arek Socha 2016 / Pixabay
In our last article, we told you about our FORAREX project, which we developed within the framework of the German-Swedish REXUS/BEXUS programme.
But what exactly does this REXUS/BEXUS programme entail? And who can participate?
by Team FORAREX
Fig. 1: Maximum relaxation – lounging on the seabed and swaying to the rhythm of the waves. Copyright © StockSnap 2017 / Pixabay
Imagine you are living under the sea. You see the suns rays shining through the water. There is sand beneath you. The water flows around you to the rhythm of the wave – and you sway with it (see Fig. 1). Everything feels very pleasant. You are thinking how wonderful your home is. The waves, the light – everything is perfect.
But suddenly a dark shadow looms over you – and this shadow takes you out of this paradise and catapults you into space! Isn’t that a disturbing and rather improbable idea?
But that is in fact my story.
by Christoph Kulmann and Greta Sondej
Fig.1: Left: Close-up of a foraminifera with pseudopodia; right: Four foraminifera in direct size comparison with a pinhead. Copyright © FORAREX 2018
Foraminifera (Latin for “hole bearers”, informally called “forams”) are single-celled organisms that usually have a multi-chambered shell, which can be built in various ways depending on the species. They are the stars of the FORAREX (FORAminifera Rocket EXperiment) project, in which we investigate their behaviour and shell growth under microgravitational conditions.
About Ice Cores Part II
Cross-section of an ice core. Photo: Sepp Kipfstuhl
In the first article about ice cores, we learned why ancient stories lie dormant in the ice. We got to the icy library and looked at how the stories can be recovered in the form of ice cores. This article will deal with the question how we can reveal the stories of the ice cores. To do this, we need to understand the different languages of the ice.
About Ice Cores Part I
A transforming icy library slowly descending towards the valley. Glacier in the northeast of Greenland. Photo: Jan Rohde
On earth there is a lot of ice and snow and not only in winter – at least at the moment. At the poles there are huge sheets of ice and in between exist many smaller and larger glaciers on high mountains. Stories are preserved in the ice. Stories from long ago. How this happened and how these stories can be brought to the surface, we will learn in this article.
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