A study conducted by an expert at the University of Sheffield and officials at NASA has found that while Greenland’s ice is certainly thinning, snowfall in some areas is increasing, with levels in south-east Greenland in the past year being three times higher than is usual. This opens debate as to how global warming will affect Greenland’s ice sheet and could mean that it remains stable, as thinning ice is offset by increased snowfall, which will replace the melted ice.
Edward Hanna, from the University of Sheffield’s Department of Geography explains, “Our study involved using airborne laser surveys to measure the height of the ice in Greenland. We found that ice is thinning at an extremely rapid rate along the margins, meaning that Greenland’s contribution to global sea level rise has almost doubled since the mid 90s.
“In contrast to this, ice in South East Greenland has actually thickened by a metre between 2002 and 2003, reversing the thinning of between 10cm and 40cm a year which had been occurring there in the mid 90s. This sudden thickening was due to unusually high levels of snowfall between 2002 and 2003. Usually this area would experience about a metre of snow per year, but in this period 3m of snow fell, which is the highest rate in more than 45 years of meteorological data.
Dispersal of Fish Eggs by Water Birds – Just a Myth?
19.02.2018 | Universität Basel
Removing fossil fuel subsidies will not reduce CO2 emissions as much as hoped
08.02.2018 | International Institute for Applied Systems Analysis (IIASA)
Animal photoreceptors capture light with photopigments. Researchers from the University of Göttingen have now discovered that these photopigments fulfill an...
On 15 March, the AWI research aeroplane Polar 5 will depart for Greenland. Concentrating on the furthest northeast region of the island, an international team...
The world’s second-largest ice shelf was the destination for a Polarstern expedition that ended in Punta Arenas, Chile on 14th March 2018. Oceanographers from...
At the 2018 ILA Berlin Air Show from April 25–29, the Fraunhofer Institute for Laser Technology ILT is showcasing extreme high-speed Laser Material Deposition (EHLA): A video documents how for metal components that are highly loaded, EHLA has already proved itself as an alternative to hard chrome plating, which is now allowed only under special conditions.
When the EU restricted the use of hexavalent chromium compounds to special applications requiring authorization, the move prompted a rethink in the surface...
At the ILA Berlin, hall 4, booth 202, Fraunhofer FHR will present two radar sensors for navigation support of drones. The sensors are valuable components in the implementation of autonomous flying drones: they function as obstacle detectors to prevent collisions. Radar sensors also operate reliably in restricted visibility, e.g. in foggy or dusty conditions. Due to their ability to measure distances with high precision, the radar sensors can also be used as altimeters when other sources of information such as barometers or GPS are not available or cannot operate optimally.
Drones play an increasingly important role in the area of logistics and services. Well-known logistic companies place great hope in these compact, aerial...
16.03.2018 | Event News
13.03.2018 | Event News
08.03.2018 | Event News
16.03.2018 | Earth Sciences
16.03.2018 | Physics and Astronomy
16.03.2018 | Life Sciences