Lecturer: Prof. Susanne Crewell, Universitet Köln Date: 2022-03-24 10:00 Place: Aula
HALO-AC3: An airborne campaign to assess the influence of airmass transport for Arctic Amplification
The Arctic has warmed by more than two degrees Celsius over the last 50 years which is about twice as much as the global average. Several reasons for this Arctic Amplification have been proposed with enhanced transport of warm air being one candidate. With only rather limited observations available in the Arctic quite some gaps exist in our understanding how air masses are transformed during transport in particular in respect to clouds and precipitation. This concerns both northwards-flowing warm air reaching into the central Arctic - often called warm air intrusions – and the counterpart, cold air outbreaks with southwards-moving cold air from the
Arctic.
From mid-March 2022 onward, the large-scale international HALO-(AC)3 research campaign will investigate such transformations. Three German aircraft will be deployed, scientists from the UK and France will also be involved during joint flights with two further aircraft. More than 100 scientists from 12 countries will take part in this research project. First research flights made by the High Altitude Long-Range (HALO) aircraft towards the North Pole already covered a record-breaking warm air intrusion including liquid precipitation at high latitudes which has strong impact on
sea ice.
The seminar is also online. See emails for connection details.
Created 2021-10-27 09:28:05 by Uwe Raffalski Last changed 2022-03-21 13:07:38 by Uwe Raffalski
