Back-Bent Occlusion
Competency Framework
WMO Satellite Skills
Application
Description
A Back-Bent Occlusion is that part of an Occlusion cloud spiral which reforms into a Cold Front band with some cyclonic curvature with the approach of a cold air mass.
Content
The concept Back Bent Occlusion refers to a part of a warm occluded front that changes its direction of motion and turns into a Cold Front. This back bending is due to remarkable cold air advection at the rear side. The bending back of an occluded front can be seen from the curvature of TFP field around the Occlusion.The surface pressure gradient is relatively weak near the centre of the low, and often elongated in the direction of the occluded front.