Katabatic winds over Antarctica

Katabatic winds over Antarctica

27 May 2008 00:00 UTC

Katabatic winds over Antarctica
Katabatic winds over Antarctica

The AVHRR image below shows a spectacular case of Katabatic winds over Antarctica, with nice 'smoke plumes' flowing out onto the Ross ice shelf.

Last Updated

22 October 2020

Published on

27 May 2008

by Adam Dybbroe (SMHI )

The air flowing down on the ice shelf is almost 20 K warmer than the surrounding air (220 K). The temperature on the mainland and the ice shelf is about the same.

See also the very sharp boundary between the Ice shelf and the sea ice. The temperature difference is again almost 20 K (235 K on the ice shelf edge and 255 K over the sea ice).

Metop-A AVHRR Image

Metop-A, AVHRR, 27 May 2008, 18:49 UTC
RGB Composite IR3.7, IR11.0, IR12.0
Full Resolution