ON THE ROLE OF TROPOSPHERIC CIRCULATION IN RECENT CLIMATE CHANGES IN THE ANTARCTIC PENINSULA REGION
DOI:
https://doi.org/10.2478/2292Keywords
regional warming, Antarctic Peninsula, predominant circulation type, criterion of similarityAbstract
The state of tropospheric circulation in the West Antarctic sector (WAS) is considered during 1990s, the warmest decade in the Antarctic Peninsula (AP) region. Regional warming has progressed almost coherently with the second phase of global warming and is related to oceanic variability, specifically PDO-ENSO conditions. Atmospheric circulation in 1990s comprises a prevailing cyclogenesis west of the Antarctic Peninsula sector along with frequent weather modifications (the winter season in particular is examined) and the ridge of high pressure to the east. Predominant atmospheric circulation types for the recent decade are found to be stable in time causing smaller air temperature oscillations on different time scales. The circulation background responsible for the stabilization of air temperature growth in the AP region immediately after the turn of the millennium is shown.
References
Alekseev G.V., 2003, Research into the climate of the Arctic in the 20th century, Proc. Arctic and Antarctic Res. Institute, 6–21 (In Russian).
Bagrov N.A., 1969, Classification of synoptic situations, Meteorology and Hydrology, 5, 3–12 (in Russian).
Bertler N., Barret P., Mayewski P., Fogt R., Kreutz K., Shulmeiste r J., 2004, El Nino suppresses Antarctic warming, Geophys. Res. Lett., 31, L15207.
Connolley W.M., 1997, Variability in annual mean circulation in Southern high latitudes, Clim. Dyn., 13, 745–756.
Fyfe J.C., 2003, Extratropical Southern Hemisphere Cyclones: Harbingers of Climate Change, J. Climate, 16, 2802–2805.
Hinzman L., Bettez N., Bolton W.R., 2005, Evidence and implications of recent climate change in Northern Alaska and other Arctic regions, Climatic Change, 72, 251–298.
Jung T., Hilmer M., Ruppecht E., Kleppek S., Gulev S., Zolina O., 2002, Characteristics of the Recent Eastward Shift of Interannual NAO Variability, J. Climate, 16, 3371–3382.
Kejna M., 2002, Change of air temperatures in Antarctica. Probl. Klimatol. Pol., 12, 5–20. (In Polish).
Lynch A., Uotila P., Cassano J., 2006, Changes in synoptic weather patterns in the polar regions in the twentieth and twenty-first centuries, part 2: Antarctic. Int. J. Climatol., 26, 1181–1199.
Martazinova V.F., 2005, The classification of synoptic patterns by method of analogs, J. Environ. Sci. Eng., 7, 61–65.
Marshall G.J., 2003, Trends in the Southern Annular Mode from Observations and Reanalyses, J. Climate, 16, 4134–4143.
Marshall G.J., Orr A., van Lipzig N.P.M., King J.C., 2006, The impact of changing Southern Hemisphere Annular Mode on Antarctic Peninsula summer temperatures, J. Climate, 19, 5388–5404.
Rogers J. C., Mosley-Thompson, E., 1995, Atlantic Arctic cyclones and the mild Siberian winters of the 1980s, Geophys. Res. Lett., 22, 799–802.
Sinclair M.R., 1996, A climatology of anticyclones and blocking for the Southern Hemisphere. Mon. Weather Rev., 124, 245–263.
Timofeyev V.E., Popov Y. V., Ukrainsky V.V., Skrypn ik, S.V., 2002, Meteorological anomalies at Vernadsky base during summer seasons of 2000, Proc. of 28th Polish Polar Symposium, 315–321.
Turner J., 2004, The El-Niño and Antarctica, Int. J. Climatol., 24, 1–32.
Turner J., Colwell S., Marshall G., Lachlan-Cope A., Carlet on A., Jone s P., Lagun V., Reid P., Yagovkina S., 2005, Antarctic Climate Change during the last 50 years, Int. J. Climatol., 25, 279–294.
Vaughan D.G., Doake C.S.M., 1996, Recent atmospheric warming and retreat of ice shelves on the Antarctic Peninsula, Nature, 379, 328–331.
Yuan X., Martinson D.G., 2000, Antarctic sea ice extent and its global connectivity, J. Climate, 13, 1697–1717.
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2009 Vladislav E. Tymofeyev
This work is licensed under a Creative Commons Attribution-NoDerivatives 4.0 International License.
Stats
Number of views and downloads: 43
Number of citations: 0
