Cold climate

Polar regions are the most sensitive and vulnerable areas to the climate change in the Earth. Understanding meteorological processes and air-sea-ice interaction processes in polar regions is becoming increasingly important with today’s ongoing climate change. General climate models suggest that the largest temperature increase will be at high latitudes. However, both general climate models and normal weather forecast models show a high degree of uncertainty in polar regions. One of the underlying difficulties is how small-scale processes in the atmospheric and oceanic boundary layer and the sub-grid parameterisation are implemented. Previous studies in the Arctic suggest that small-scale processes in this region are very local and that spatial variation is significant. Thus, the question remains of how to draw representative generalisations, even for a small area, and what drives these local processes.

In-situ measurements, remote sensing, and numerical simulations are used to investigate various scale processes in polar regions. Specifically, our research areas include turbulent fluxes, wave-ice interactions, polar lows, cold air outbreak, upper ocean turbulence in polar ocean, and etc. Our long term goal is to improve the representation of those processes in numerical weather predication and climate models.

Persons: Gabriele Messori, Anna Rutgersson, Lichuan Wu

Ongoing project: