The new three-dimensional map of Earth has been completed. Mountain peaks and valley floors across the globe can now be seen with an accuracy of just one metre. The global elevation model was created as part of the TanDEM-X satellite mission; it offers unprecedented accuracy compared with other global datasets and is based on a uniform database.
Vegetation and soil are currently slowing down global warming by absorbing about a quarter of human emissions of carbon dioxide (CO2). This land carbon sink is believed to be in part due to increases in photosynthesis. A new study in the journal Nature shows that doubling of the carbon dioxide concentration in the atmosphere will cause global plant photosynthesis to increase by approximately one third.
Everyone knows this situation with a weather forecast, when the presenter reveals a new Icelandic low on the map. Very soon, they are then often told, the trough of low pressure will reach the mainland and determine the weather for many days in Europe. Small errors often lead to the forecast in Europe being very uncertain for several days, because the system develops vigorously in the 'weather kitchen' over the Atlantic, and that is difficult to capture in weather models.
What do the Moon and Mount Etna have in common? An extreme surface as well as extreme conditions. Twenty-one scientists from the German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt; DLR) are using the harsh conditions on the volcano to test technologies for future Solar System exploration missions.
With a diameter of 20 metres, Earth appears to float above visitors to the Gasometer Oberhausen, while banks of clouds, days and nights – and even rain showers – flow across its surface. Over half a million people have already visited the 'Wonders of Nature' exhibition, making this display in the old industrial monument one of this year's most popular exhibitions.
With a new Malik Verlag publication, 'm4 Mountains – Die vierte Dimension' (m4 mountains – the fourth dimension), the German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt; DLR) presents another image book from the world of satellite-supported Earth observation. In 200 pages, Stefan Dech and Nils Sparwasser, together with mountaineering legend Reinhold Messner, show some of our planet's fascinating mountains in a completely innovative way.
On 9 September 2016 at 13:00 CEST, the BIROS (Bi-Spectral Infrared Optical System) fire detection satellite developed and built by the German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt; DLR) released BEESAT-4 (Berlin Educational and Experimental Picosatellite) into space 515 kilometres above the Norwegian Svalbard archipelago.
Four days and four cases that pose a threat to maritime security – in several scenarios that took place between 5 and 9 September 2016, the EMSec joint project (Echtzeitdienste für die Maritime Sicherheit - Security; Real-Time Services for Maritime Security) was able to successfully demonstrate research findings from the last three years.
What effects do tropical clouds have on our climate? Do they warm up or cool down the atmosphere? What factors do they influence? Even the latest models do not fully understand the effects of these climate-influencing 'clouds'.
In the Situation Centre, an alarm flashes on the screen – a passenger ferry has changed its planned course for no apparent reason. The AIS (Automatic Identification System) signal eventually disappears from the display. By now, all ship-specific information must have been requested and compared in order to quickly clarify the situation and take immediate action.