The predictability of the extratropical stratosphere on monthly time‐scales and its impact on the skill of tropospheric forecasts

OP Tripathi, M Baldwin… - Quarterly Journal of …, 2015 - Wiley Online Library
Extreme variability of the winter‐and spring‐time stratospheric polar vortex has been shown
to affect extratropical tropospheric weather. Therefore, reducing stratospheric forecast error …

Seasonal winter forecasts and the stratosphere

AA Scaife, AY Karpechko, MP Baldwin… - Atmospheric Science …, 2016 - Wiley Online Library
We investigate seasonal forecasts of the winter North Atlantic Oscillation (NAO) and their
relationship with the stratosphere. Climatological frequencies of sudden stratospheric …

The 2019 new year stratospheric sudden warming and its real‐time predictions in multiple S2S models

J Rao, CI Garfinkel, H Chen… - Journal of Geophysical …, 2019 - Wiley Online Library
Using multiple data sources, favorable conditions for the 2019 SSW event and its predictive
skill from 11 subseasonal to seasonal (S2S) forecast models are explored in this study. This …

The stratospheric sudden warming event in February 2018 and its prediction by a climate system model

J Rao, R Ren, H Chen, Y Yu… - Journal of Geophysical …, 2018 - Wiley Online Library
A major stratospheric sudden warming (SSW) event was observed in February 2018 after a
4‐year absence since the winter of 2013/2014. Based on the reanalysis data, the polar night …

[HTML][HTML] Examining the predictability of the stratospheric sudden warming of January 2013 using multiple NWP systems

OP Tripathi, M Baldwin, A Charlton-Perez… - Monthly Weather …, 2016 - journals.ametsoc.org
Examining the Predictability of the Stratospheric Sudden Warming of January 2013 Using
Multiple NWP Systems in: Monthly Weather Review Volume 144 Issue 5 (2016) Jump to …

Connection between weak stratospheric vortex events and the Pacific Decadal Oscillation

SH Woo, MK Sung, SW Son, JS Kug - Climate dynamics, 2015 - Springer
We investigate the possible impacts of the Pacific Decadal Oscillation (PDO) on the
occurrence of weak stratospheric polar vortex (WSV) events in the Northern Hemisphere …

Statistical characteristics of major sudden stratospheric warming events in CESM1-WACCM: A comparison with the JRA55 and NCEP/NCAR reanalyses

C Cao, YH Chen, J Rao, SM Liu, SY Li, MH Ma… - Atmosphere, 2019 - mdpi.com
Using the historical simulation from the CESM1-WACCM coupled model and based on the
JRA55 and NCEP/NCAR reanalyses, the general statistical characteristics of the major …

Observed and simulated precursors of stratospheric polar vortex anomalies in the Northern Hemisphere

EW Kolstad, AJ Charlton-Perez - Climate dynamics, 2011 - Springer
Abstract The Northern Hemisphere stratospheric polar vortex is linked to surface weather.
After Stratospheric Sudden Warmings in winter, the tropospheric circulation is often nudged …

When and how can the stratosphere modify the midlatitude cold air outbreaks in northern winter: an isentropic meridional mass circulation view

Y Yu, R Ren, B Liu, L Wang, H Chen… - Journal of Geophysical …, 2023 - Wiley Online Library
Cold air outbreaks (CAOs) in northern winter can be attributed to the variations in the lower‐
tropospheric equatorward cold branch (CB) of the isentropic meridional mass circulation …

The February 2021 cold air outbreak in the United States: A subseasonal forecast of opportunity

JR Albers, M Newman, A Hoell… - Bulletin of the …, 2022 - journals.ametsoc.org
The sources of predictability for the February 2021 cold air outbreak (CAO) over the central
United States, which led to power grid failures and water delivery shortages in Texas, are …