Sudden stratospheric warmings (SSWs) are impressive fluid dynamical events in which
large and rapid temperature increases in the winter polar stratosphere (∼ 10–50 km) are …

The stratosphere, the layer of the atmosphere at heights between 10-50 km, is an important
source of variability for the weather and climate at the Earth's surface on timescales of weeks …

Abstract The Northern Hemisphere (NH) polar winter stratosphere of 2019/2020 featured an
exceptionally strong and cold stratospheric polar vortex. Wave activity from the troposphere …

There is high demand and a growing expectation for predictions of environmental conditions
that go beyond 0–14-day weather forecasts with outlooks extending to one or more seasons …

Alexander, LV, M. Bador, R. Roca, S. Contractor, MG Donat, and PL Nguyen, 2020:
Intercomparison of annual precipitation indices and extremes over global land areas from in …

Large-scale chemical depletion of ozone due to anthropogenic emissions occurs over
Antarctica as well as, to a lesser degree, the Arctic. Surface climate predictability in the …

Pronounced changes in the Arctic environment add a new potential driver of anomalous
weather patterns in midlatitudes that affect billions of people. Recent studies of these …

This study offers an overview of the low-frequency (ie, monthly to seasonal) evolution,
dynamics, predictability, and surface impacts of a rare Southern Hemisphere (SH) …

Severe cold air outbreaks have significant impacts on human health, energy use,
agriculture, and transportation. Anomalous behavior of the Arctic stratospheric polar vortex …

Network theory, as emerging from complex systems science, can provide critical predictive
power for mitigating the global warming crisis and other societal challenges. Here we …