GeoLog

Stratospheric Sudden Warmings

Imaggeo On Monday: The sudden stratospheric warming on February 12, 2018

Daniela Domeisen January 11, 2021

The image captures an atmospheric extreme event, a so-called sudden stratospheric warming (SSW) that occurred on Feb. 12, 2018. It is visualized through potential vorticity above the North Pole at the 10hPa level (~30km) above the Earth’s surface and consists of a split of the winter polar vortex into two separate vortices that interact with …[Read More]

Imaggeo on Mondays: The warming

Laura Roberts-Artal August 3, 2015

Events of meteorological significance, such as thunderstorms, hurricanes, cyclones, jet streams and global-scale circulations can be described by a general term: atmospheric dynamics. When it comes to it, atmospheric dynamics deals with nothing more than air, which, in truth, is very difficult to directly observe, (with the exception of clouds and precipitation). This makes the …[Read More]