Results 1 to 10 of about 288 (113)

A tropical stratopause precursor for sudden stratospheric warmings [PDF]

Scientific Reports, 2022
Dramatic meteorological phenomena in the winter polar stratosphere known as Sudden Stratospheric Warming (SSW) events are well recognized for their impacts felt across the whole atmosphere.
N. Koushik, K. Kishore Kumar, M. Pramitha   +2 more
doaj   +2 more sources

Signature of a zonally symmetric semidiurnal tide during major sudden stratospheric warmings and plausible mechanisms: a case study [PDF]

Scientific Reports
Sudden Stratospheric Warming (SSW) is a winter phenomenon initiated primarily by the enhanced stationary planetary waves (SPWs), characterized by an increase in polar stratospheric temperature by a few tens of kelvin for a few days.
G. Mitra, A. Guharay, I. Paulino
doaj   +2 more sources

Oceanic fronts shape hemispheric contrasts in polar stratospheric extremes [PDF]

Nature Communications
Sudden Stratospheric Warmings (SSWs) and Polar Stratospheric Clouds (PSCs) exhibit striking inter-hemispheric asymmetries: SSWs are frequent in the Arctic but rare in the Antarctic, while PSCs are more persistent in the Antarctic.
Nour-Eddine Omrani, Fumiaki Ogawa, Hisashi Nakamura, Sandro W. Lubis, Noel S. Keenlyside, Luca Famooss Paolini   +5 more
doaj   +2 more sources

Statistical Characteristics of Major Sudden Stratospheric Warming Events in CESM1-WACCM: A Comparison with the JRA55 and NCEP/NCAR Reanalyses

Atmosphere, 2019
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 sudden stratospheric warmings (SSWs) in this stratosphere-resolving model are ...
Can Cao, Yuan-Hao Chen, Jian Rao, Si-Ming Liu, Si-Yu Li, Mu-Han Ma, Yao-Bin Wang   +6 more
doaj   +3 more sources

Dynamic Diagnosis of Stratospheric Sudden Warming Event in the Boreal Winter of 2018 and Its Possible Impact on Weather over North America

Atmosphere, 2020
In the winter of 2018, a major stratospheric sudden warming (SSW) event occurred in the Northern Hemisphere. This study performs a dynamic diagnosis on this 2018 SSW event and analyzes its possible impact on the weather over North America.
Jincai Xie, Jinggao Hu, Haiming Xu, Shuai Liu, Huan He   +4 more
doaj   +3 more sources

Investigation of Sudden Stratospheric Warming (SSW) Events Between 1980 and 2100

Forecasting
The main objective of this work is to characterize Sudden Stratospheric Warming (SSW) conditions and their impact on local weather forecasting and climate change, using SSW definition criteria.
Simla Durmus, Deniz Demirhan, Ismail Gultepe, Onur Durmus   +3 more
doaj   +3 more sources

Predicting the Downward and Surface Influence of the February 2018 and January 2019 Sudden Stratospheric Warming Events in Subseasonal to Seasonal (S2S) Models [PDF]

Journal of Geophysical Research D: Atmospheres, 2020
Jian Rao, Chaim I. Garfinkel, Ian P White   +2 more
exaly   +2 more sources

Possible Causes of the Occurrence of a Rare Antarctic Sudden Stratospheric Warming in 2019

Atmosphere, 2022
A minor Antarctic sudden stratospheric warming (SSW) with the strongest circulation changes since the first major SSW over the Antarctic was recorded in 2002 occurred in early September 2019.
Chenming Ma, Pengkun Yang, Xin Tan, Ming Bao   +3 more
doaj   +1 more source

Possible influence of sudden stratospheric warmings on the atmospheric environment in the Beijing–Tianjin–Hebei region [PDF]

Atmospheric Chemistry and Physics, 2022
Using European Centre for Medium-Range Weather Forecasts fifth-generation (ERA5) and second Modern-Era Retrospective analysis for Research and Applications (MERRA-2) reanalysis and surface meteorological observation data, this study explores the possible
Q. Lu, Q. Lu, Q. Lu, J. Rao, C. Shi, D. Guo, G. Fu, J. Wang, Z. Liang   +8 more
doaj   +1 more source

Identifying Perturbations That Tipped the Stratosphere Into a Sudden Warming During January 2013

Geophysical Research Letters, 2023
We present a new methodology demonstrating that specific small‐magnitude regional perturbations can cause large systematic responses in subseasonal predictions.
Chris Kent, Adam A. Scaife, William J. M. Seviour, Nick Dunstone, Doug Smith, Kerry Smout‐Day   +5 more
doaj   +1 more source