Results 41 to 50 of about 516,711 (190)

Improved predictability of the troposphere using stratospheric final warmings [PDF]

, 2011
The final warming of the stratospheric polar vortex at the end of northern hemisphere winter is examined in ECMWF ERA-Interim reanalysis data and an ensemble of chemistry climate models, using 20 years of data from each.
Braesicke, Peter, Michou, M., Shaw, T., Peter Braesicke, Hardiman, S. C., Hardiman, S., Martyn Chipperfield, Akiyoshi, Hideharu, Garcia, Rolando R., Shaw, Tiffany A., Garcia, R., Hideharu Akiyoshi, Martin Dameris, Chipperfield, Martyn, Kiyotaka Shibata, Neal Butchart, Shaw, T. A., Hardiman, Steven, Tiffany A. Shaw, Slimane Bekki, Akiyoshi, H., Charlton-Perez, A., Baumgaertner, Andreas, Hardiman, Steven C., Braesicke, P., Dameris, Martin, Baumgaertner, A., Chipperfield, M., Garcia, R. R., Bekki, Slimane, Butchart, Neal, Eugene Rozanov, Charlton‐Perez, Andrew J., Butchart, Neil, Steven C. Hardiman, Dameris, M., Steven Pawson, Andrew J. Charlton-Perez, Bekki, S., Andreas Baumgaertner, Rozanov, Eugene, Martine Michou, Rolando R. Garcia, Charlton-Perez, Andrew J., Shibata, Kiyotaka, Shibata, K., Pawson, Steven, Butchart, N., Rozanov, E., Michou, Martine, Pawson, S., Charlton-Perez, A. J.   +51 more
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Equatorial counter electrojets and polar stratospheric sudden warmings – a classical example of high latitude-low latitude coupling? [PDF]

Annales Geophysicae, 2009
Favored occurrences of Equatorial Counter Electrojets (CEJs) with a quasi 16-day periodicity over Trivandrum (8.5° N, 76.5° E, 0.5° N diplat.) in association with the polar Stratospheric Sudden Warming (SSW) events are presented.
C. Vineeth, T. Kumar Pant, R. Sridharan
doaj   +1 more source

Multimodel climate and variability of the stratosphere [PDF]

, 2011
The stratospheric climate and variability from simulations of sixteen chemistry‐climate models is evaluated. On average the polar night jet is well reproduced though its variability is less well reproduced with a large spread between models.
T. Nakamura, Garny, Hella, Morgenstern, O, J.-F. Lamarque, Osprey, Scott, H. Teyssèdre, Eyring, V, M. Dameris, Hardiman, S. C., Garny, H., S. M. Osprey, Garcia, R., Kushner, PJ, J. Perlwitz, D. Smale, D. Plummer, Haynes, P.H., Charlton-Perez, AJ, Akiyoshi, H, J. Pyle, E. Rozanov, Nakamura, T, Akiyoshi, H., Charlton-Perez, A., Morgenstern, O., Perlwitz, J, Pyle, J, Butchart, N, Haynes, PH, M. Marchand, Lamarque, J-F, Y. Yamashita, Lamarque, J. F., Braesicke, P., Brühl, C., Baumgaertner, A., Kushner, P., Dameris, Martin, Kushner, P. J., Chipperfield, M., Butchart, Neal, Chipperfield, M, Wang, L., Joeckel, P, M. Sigmond, Tian, W., Wang, L, Bekki, S, Perlwitz, J., Dameris, M, Osprey, S. M., H. Akiyoshi, R. Garcia, V. Eyring, K. Krüger, Bekki, S., Eyring, V., A. Baumgaertner, Jöckel, P., Osprey, S., et, al., Rozanov, E, P. H. Haynes, M. Michou, Yamashita, Y, Plummer, D, S. Bekki, Scinocca, J, Newman, P. A., Shepherd, T. G., Marchand, M, Krüger, Kirstin, Eyring, Veronika, Dhomse, S, Butchart, N., D. Waugh, Haynes, P. H., Rozanov, E., Pawson, S., Lamarque, J.-F., Charlton-Perez, A. J., Osprey, SM, J. Austin, Newman, PA, Smale, D., Austin, J., Michou, M., Marchand, M., Garny, H, Newman, P., Hardiman, S., Waugh, D., Cionni, Irene, Teyssedre, H, J. Scinocca, Sigmond, M, A. J. Charlton-Perez, Waugh, D, P. J. Kushner, Bruehl, C, S. C. Hardiman, Braesicke, P, Smale, Dan, Marchand, Marion, K. Shibata, H. Garny, S. Pawson, Cionni, I., Sigmond, M., T. G. Shepherd, Hardiman, SC, C. Brühl, S. Dhomse, Baumgaertner, A, P. Braesicke, P. A. Newman, Shepherd, T., Scinocca, J., Bekki, Slimane, M. Chipperfield, I. Cionni, Garcia, R, Plummer, D., Dameris, M., Morgenstern, Olaf, Pawson, S, N. Butchart, Lamarque, J., Krueger, K, Dhomse, S., Yamashita, Y., Haynes, P., Austin, J, Smale, D, Tian, W, P. Jöckel, Pyle, J., Teyssèdre, H., L. Wang, O. Morgenstern, Charlton-Perez, Andrew J., Newman, P.A., Shibata, K, Krüger, K., W. Tian, Shibata, K., Hardiman, S.C., Shepherd, TG, Michou, M, Charlton-Perez, A.J., Jöckel, Patrick, Osprey, S.M., Nakamura, T., Michou, Martine, Cionni, I   +154 more
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Defining Sudden Stratospheric Warmings

Bulletin of the American Meteorological Society, 2015
Abstract Sudden stratospheric warmings (SSWs) are large, rapid temperature rises in the winter polar stratosphere, occurring predominantly in the Northern Hemisphere. Major SSWs are also associated with a reversal of the climatological westerly zonal-mean zonal winds.
Amy H. Butler, Dian J. Seidel, Steven C. Hardiman, Neal Butchart, Thomas Birner, Aaron Match   +5 more
openaire   +1 more source

Associations between stratospheric variability and tropospheric blocking [PDF]

, 2010
There is widely believed to be a link between stratospheric flow variability and stationary, persistent “blocking” weather systems, but the precise nature of this link has proved elusive.
Charlton-Perez, Andrew James, Woollings, Tim James, Marshall, A. G., Woollings, Tim, Ineson, S., Marshall, AG, Masato, G, Woollings, T, Ineson, S, Charlton-Perez, A, Masato, Giacomo   +10 more
core   +1 more source

The role of convective overshooting clouds in tropical stratosphere–troposphere dynamical coupling [PDF]

Atmospheric Chemistry and Physics, 2015
This paper investigates the role of deep convection and overshooting convective clouds in stratosphere–troposphere dynamical coupling in the tropics during two large major stratospheric sudden warming events in January 2009 and January 2010.
K. Kodera, B. M. Funatsu, C. Claud, N. Eguchi   +3 more
doaj   +1 more source

Effects of the stratospheric sudden warming on the temperature in the MLT region [PDF]

, 2003
P(論文)We investigate effects of the stratospheric sudden warming on the temperature in the MLT (mesosphere and lower thermosphere) region by using a general circulation model up to 150km height.
Miyoshi, Yasunobu
core   +1 more source

Limited surface impacts of the January 2021 sudden stratospheric warming

Nature Communications, 2022
Subseasonal weather prediction can reduce economic disruption and loss of life, especially during “windows of opportunity” when noteworthy events in the Earth system are followed by characteristic weather patterns.
N. A. Davis, J. H. Richter, A. A. Glanville, J. Edwards, E. LaJoie   +4 more
doaj   +1 more source

The Major Sudden Stratospheric Warming Impact on Mid-Latitude Surface Weather [PDF]

EPJ Web of Conferences, 2020
The possible relation of a major sudden stratospheric warming (SSW) with the mid-latitude surface weather conditions was investigated using data from the ERA-Interim and NCEP–NCAR reanalyzes.
Wang Yuke, Evtushevsky Oleksandr, Milinevsky Gennadi, Shulga Valery, Yukhymchuk Yuliia, Han Wei, Shulga Dmitri, Grytsai Asen   +7 more
doaj   +1 more source

A Continuum of Sudden Stratospheric Warmings

Journal of the Atmospheric Sciences, 2009
Abstract The k-means cluster technique is used to examine 43 yr of daily winter Northern Hemisphere (NH) polar stratospheric data from the 40-yr ECMWF Re-Analysis (ERA-40). The results show that the NH winter stratosphere exists in two natural well-separated states.
Coughlin, K, Gray, L
openaire   +1 more source