Dr. Lichuan Wu: Docentship lecture: Polar lows: extreme mesoscale polar weather systems

  • Date: –15:30
  • Location: Institutionen för geovetenskaper Småland, Villavägen 16
  • Organiser: Institutionen för geovetenskaper
  • Contact person: Anna Rutgersson
  • Docentföreläsning

The Department of Earth Sciences hereby invite all interested to a docentship lecture in subject meteorology.

Lecturer: Dr. Lichuan Wu

Title:  Polar lows: extreme mesoscale polar weather systems

Date: 28th October 2021 at 13.30

Location: DM235, Småland, Villavägen 16

Chairperson: professor Anna Rutgersson

Representative of the Docentship Committee: professor Alireza Malehmir


Polar lows, which is also called Arctic hurricanes, are intense mesoscale cyclones over high-latitude oceans. During their life cycle, they produce severe weather, heavy precipitation, and strong winds.  They pose considerable risk to the Arctic activities. With climate change,  the increased commercial activity is expected to larger increases due to the more accessible of the Arctic in the following decades. For example, shipping activity will increase by more than 50% between 2012 and 2050 in the Arctic. All those enforce us to have a better prediction and understood of polar lows for risk advisory.

In this lecture, I will discuss 1) the formation of polar lows, 2) the different types of polar lows and their characteristics; 3) the impacts of air-sea interactions on the polar low development, and 4) the role of polar lows on polar climate as well as the polar low response to climate warming.

The lecture is an obligatory teaching test for those applying for admittance as docent and it should be possible for students and others with basic academic education in the relevant field to follow it. The lecture lasts 40-45 minutes with subsequent discussion. The lecture will be given in English.