Results 31 to 40 of about 1,013 (182)

Signature of the stratosphere–troposphere coupling on recent record-breaking Antarctic sea-ice anomalies [PDF]

The Cryosphere, 2023
In February 2023, the sea-ice extent around Antarctica dropped to 1.79×106 km2, setting a satellite-era record low for the second straight year. Recent records stress the need for further research into the factors behind record-breaking Antarctic sea-ice
R. R. Cordero, S. Feron, S. Feron, A. Damiani, P. J. Llanillo, J. Carrasco, A. L. Khan, A. L. Khan, R. Bintanja, R. Bintanja, Z. Ouyang, G. Casassa   +11 more
doaj   +1 more source

Analyzing ozone variations and uncertainties at high latitudes during sudden stratospheric warming events using MERRA-2 [PDF]

Atmospheric Chemistry and Physics, 2022
Stratospheric circulation is a critical part of the Arctic ozone cycle. Sudden stratospheric warming events (SSWs) manifest the strongest alteration of stratospheric dynamics.
S. Bahramvash Shams, S. Bahramvash Shams, V. P. Walden, J. W. Hannigan, W. J. Randel, I. V. Petropavlovskikh, I. V. Petropavlovskikh, A. H. Butler, A. de la Cámara   +8 more
doaj   +1 more source

Observations of middle atmospheric H₂O and O₃ during the 2010 major sudden stratospheric warming by a network of microwave radiometers [PDF]

Atmospheric Chemistry and Physics, 2012
In this study, we present middle atmospheric water vapor (H2O) and ozone (O3) measurements obtained by ground-based microwave radiometers at three European locations in Bern (47° N), Onsala (57° N) and Sodankylä (67° N) during Northern winter 2009/2010 ...
N. Kämpfer, P. Forkman, K. Hocke, D. Scheiben, C. Straub   +4 more
doaj   +1 more source

Evolution of observed ozone, trace gases, and meteorological variables over Arrival Heights, Antarctica (77.8°S, 166.7°E) during the 2019 Antarctic stratospheric sudden warming

Tellus: Series B, Chemical and Physical Meteorology, 2021
We use ground-based spectroscopic remote sensing measurements of the stratospheric trace gases O3, HCl, ClO, BrO, HNO3, NO2, OClO, ClONO2, N2O and HF, along with radiosonde profiles of temperature to track the springtime development of the 2019 ozone ...
Dan Smale, Susan E. Strahan, Richard Querel, Udo Frieß, Gerald E. Nedoluha, Sylvia E. Nichol, John Robinson, Ian Boyd, Michael Kotkamp, R. Michael Gomez, Mark Murphy, Hue Tran, Jamie McGaw   +12 more
doaj   +1 more source

Modulation of Atmospheric Rivers by the Arctic Stratospheric Polar Vortex

Geophysical Research Letters, 2022
Variability in atmospheric river (AR) frequency can drive hydrometeorological extremes with broad societal impacts. Mitigating the impacts of increased or decreased AR frequency requires forewarning weeks to months ahead.
Simon H. Lee, Lorenzo M. Polvani, Bin Guan   +2 more
doaj   +1 more source

Update of the Polar SWIFT model for polar stratospheric ozone loss (Polar SWIFT version 2) [PDF]

Geoscientific Model Development, 2017
The Polar SWIFT model is a fast scheme for calculating the chemistry of stratospheric ozone depletion in polar winter. It is intended for use in global climate models (GCMs) and Earth system models (ESMs) to enable the simulation of mutual ...
I. Wohltmann, R. Lehmann, M. Rex
doaj   +1 more source

Correlations of mesospheric winds with subtle motion of the Arctic polar vortex [PDF]

Atmospheric Chemistry and Physics, 2010
This paper investigates the relationship between high latitude upper mesospheric winds and the state of the stratospheric polar vortex in the absence of major sudden stratospheric warmings.
Y. Bhattacharya, A. J. Gerrard
doaj  

The major stratospheric final warming in 2016: dispersal of vortex air and termination of Arctic chemical ozone loss [PDF]

Atmospheric Chemistry and Physics, 2016
The 2015/16 Northern Hemisphere winter stratosphere appeared to have the greatest potential yet seen for record Arctic ozone loss. Temperatures in the Arctic lower stratosphere were at record lows from December 2015 through early February 2016, with ...
G. L. Manney, G. L. Manney, Z. D. Lawrence   +2 more
doaj   +1 more source

Impact of Weak‐Constraint Four‐Dimensional Variational data assimilation on the prediction of a sudden stratospheric warming event in 2024

Quarterly Journal of the Royal Meteorological Society, EarlyView.
The Weak‐Constraint Four‐Dimensional Variational (WC‐4DVAR) system markedly improved the analysis and forecasting of the 2024 sudden stratospheric warming (SSW) event. It reduced biases and enhanced 7–9 day predictions of temperature across the SSW life cycle, with the most pronounced gains for winds also during the critical onset period.
Shaoying Li, Weimin Zhang, Shuo Ma, Bainian Liu, Yanlai Zhao, Xiaoqun Cao   +5 more
wiley   +1 more source

Asymmetry in the effect of North Atlantic sea surface temperature on the eddy‐driven jet

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Projections of climate over Europe and the Atlantic are uncertain due to the uncertainty surrounding future changes in North Atlantic sea surface temperatures (SSTs). Here, we demonstrate that warming in the North Atlantic Ocean is linked to a transition to a negative phase of the North Atlantic Oscillation, as well as to an equatorward displacement of
Paul‐Arthur Monerie, Jon Robson, Christopher O'Reilly, Rowan Sutton   +3 more
wiley   +1 more source