Roland J. Koch

Jan 6, 2025 | research-in-germany.org | Roland J. Koch

Jan 6, 2025, 12:00:00 PM Roland Koch , Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung Andreas Preusser Satellite data from the last three decades documents the dramatic changes in Arctic sea ice due to climate change: the area covered in ice in summer is declining steadily, the floes are becoming thinner and moving faster.

Dec 5, 2024 | research-in-germany.org | Roland J. Koch

Dec 5, 2024, 9:00:00 PM Roland Koch , Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung Yves Nowak “In addition to the influence of El Niño and the expected long-term warming from anthropogenic greenhouse gases, several other factors have already been discussed that could have contributed to the surprisingly high global mean temperatures since 2023,” says Dr Helge Goessling, main author of the study from the Alfred Wegener Institute, Helmholtz Centre for Polar and...

Dec 5, 2024 | research-in-germany.org | Roland J. Koch

05.12.2024, 21:00:00 Roland Koch , Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung Jörg Hartmann „Neben dem Einsetzen von El Niño und der erwarteten langfristigen Erwärmung durch anthropogene Treibhausgase wurden bereits mehrere Faktoren diskutiert, die zu den überraschend hohen globalen Durchschnittstemperaturen seit 2023 beigetragen haben könnten“, sagt Dr. Helge Gößling, Hauptautor der Studie vom Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und...

Nov 27, 2024 | research-in-germany.org | Roland J. Koch

Nov 27, 2024, 4:04:18 PM Roland Koch , Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung The eastern Fram Strait is hard-hit by the impacts of climate change, which also affect the species living there. For example, rising water temperatures are leading to a significant decline in sea ice and to shifts in the food web.

Nov 27, 2024 | phys.org | Roland J. Koch |Helmholtz Association

The long-term analysis of blue whale and fin whale vocalizations in the eastern Fram Strait offers valuable insights into seasonal and annual patterns regarding these species' occurrence in the region. For example, blue whales can primarily be heard in the summer and autumn, whereas the acoustic data on fin whales indicates that their occurrence is much longer and more variable.