caa a22 4500 605473501 CHVBK 20210128100343.0 cr unu---uuuuu 210128e20150401xx s 000 0 eng 10.1007/s00382-014-2375-2 doi (NATIONALLICENCE)springer-10.1007/s00382-014-2375-2 Teleconnection between the central tropical Pacific and the Antarctic stratosphere: spatial patterns and time lags [Elektronische Daten] [O. Evtushevsky, V. Kravchenko, L. Hood, G. Milinevsky] Coupling between the central tropical Pacific (CTP) sea surface temperature (SST) variability and the Antarctic stratosphere known from previous studies is analysed using a lagged correlation method. Monthly mean SST, stratospheric temperatures and zonal winds from the NCEP-NCAR reanalysis and total ozone from the Merged Ozone Data Set over the 1979-2011 period are used. Indices for interannual variability were created and sequential lagged correlations were used to determine the spatial patterns and time lags of the strongest teleconnection. It has been revealed that interannual SST variations in a westward-oriented V-shaped pattern in the CTP region (160-220°E, 30°N-20°S) are associated with statistically significant positive signals in zonally asymmetric region of the Antarctic stratosphere temperature field. Stratospheric pathway dominates in the poleward and downward propagation of the CTP related anomaly in the Southern Hemisphere zonal wind variability. Abrupt modification of the teleconnection patterns in October is accompanied by occurrence of the intense meridional wave train in the lower stratosphere and troposphere. The strongest lagged correlations between the CTP SST index in June and the Southern Hemisphere atmosphere variables in October (r=±0.7) could be related to the corresponding seasonal peaks in the stationary planetary wave activity. Possible causes of the V-pattern formation and the lagged teleconnection mechanisms are briefly discussed. Springer-Verlag Berlin Heidelberg, 2014 Teleconnection nationallicence Central tropical Pacific nationallicence Antarctic stratosphere nationallicence Temperature nationallicence Total ozone content nationallicence Zonal wind nationallicence Lagged correlation nationallicence Evtushevsky O. Taras Shevchenko National University of Kyiv, Kyiv, Ukraine aut Kravchenko V. Taras Shevchenko National University of Kyiv, Kyiv, Ukraine aut Hood L. Lunar and Planetary Laboratory, The University of Arizona, Tucson, AZ, USA aut Milinevsky G. Taras Shevchenko National University of Kyiv, Kyiv, Ukraine aut Climate Dynamics Springer Berlin Heidelberg 44/7-8(2015-04-01), 1841-1855 0930-7575 44:7-8<1841 2015 44 382 https://doi.org/10.1007/s00382-014-2375-2 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00382-014-2375-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Evtushevsky O. Taras Shevchenko National University of Kyiv, Kyiv, Ukraine aut NATIONALLICENCE 700 1- Kravchenko V. Taras Shevchenko National University of Kyiv, Kyiv, Ukraine aut NATIONALLICENCE 700 1- Hood L. Lunar and Planetary Laboratory, The University of Arizona, Tucson, AZ, USA aut NATIONALLICENCE 700 1- Milinevsky G. Taras Shevchenko National University of Kyiv, Kyiv, Ukraine aut NATIONALLICENCE 773 0- Climate Dynamics Springer Berlin Heidelberg 44/7-8(2015-04-01), 1841-1855 0930-7575 44:7-8<1841 2015 44 382