Climate dynamics

Research group

Research theme

Sub department

About

The influence of the quasi-biennial oscillation on the stratospheric polar vortices

(2013)

Variability of the North Atlantic summer storm track: mechanisms and impacts on European climate

ENVIRONMENTAL RESEARCH LETTERS 8:3 (2013) ARTN 034037

Authors:

Buwen Dong, Rowan T Sutton, Tim Woollings, Kevin Hodges
More details from the publisher

Wave-Breaking Characteristics of Northern Hemisphere Winter Blocking: A Two-Dimensional Approach

JOURNAL OF CLIMATE 26:13 (2013) 4535-4549

Authors:

Giacomo Masato, Brian J Hoskins, Tim Woollings
More details from the publisher

On the role of the ocean in projected atmospheric stability changes in the Atlantic polar low region

Geophysical Research Letters 39:24 (2012)

Authors:

T Woollings, B Harvey, M Zahn, L Shaffrey

Abstract:

The occurrence of destructive mesoscale 'polar low' cyclones in the subpolar North Atlantic is projected to decline under anthropogenic change, due to an increase in atmospheric static stability. This letter reports on the role of changes in ocean circulation in shaping the atmospheric stability. In particular, the Atlantic Meridional Overturning Circulation (AMOC) is projected to weaken in response to anthropogenic forcing, leading to a local minimum in warming in this region. The reduced warming is restricted to the lower troposphere, hence contributing to the increase in static stability. Linear correlation analysis of the CMIP3 climate model ensemble suggests that around half of the model uncertainty in the projected stability response arises from the varied response of the AMOC between models. © 2012. American Geophysical Union. All Rights Reserved.
More details from the publisher
More details

Observations of an inertial peak in the intrinsic wind spectrum shifted by rotation in the antarctic vortex

Journal of the Atmospheric Sciences 69:12 (2012) 3812-3812

Authors:

DM Mitchell, SM Osprey, JGRAY Lesley, N Butchart, CH Steven, AJ Charlton-perez, W Peter

Abstract:

There was a numerical error in the abstract of Mitchell et al. (2012). In the fourth sentence of the abstract the number should be 7 events per decade, not 0.7. The full sentence should read, Analysis of the standard stratospheric zonal mean wind diagnostic shows no significan increase over the twenty-first century in the number of major sudden stratospheric warmings (SSWs) from its historical value of 7 events per decade, although the monthly distribution of SSWs does vary, with events becoming more evenly dispersed through thwinter.
More details from the publisher