Nonstationary impacts of the southern annular mode on Southern Hemisphere climate
The temporal stability of the southern annular mode (SAM) impacts on Southern Hemisphere climate during austral spring is analyzed. Results show changes in the typical hemispheric circulation pattern associated with SAM, particularly over South America and Australia, between the 1960s-70s and 1980s-...
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2009
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| LEADER | 08401caa a22008297a 4500 | ||
|---|---|---|---|
| 001 | PAPER-8368 | ||
| 003 | AR-BaUEN | ||
| 005 | 20230607132518.0 | ||
| 008 | 190411s2009 xx ||||fo|||| 00| 0 eng|d | ||
| 024 | 7 | |2 scopus |a 2-s2.0-77649304501 | |
| 040 | |a Scopus |b spa |c AR-BaUEN |d AR-BaUEN | ||
| 100 | 1 | |a Silvestri, G. | |
| 245 | 1 | 0 | |a Nonstationary impacts of the southern annular mode on Southern Hemisphere climate |
| 260 | |c 2009 | ||
| 270 | 1 | 0 | |m Silvestri, G.; CIMA/CONICET-UBA, Ciudad Universitaria, Intendente Guiraldes 2160, Pabelló n II, 2do, Piso (C1428EGA), Buenos Aires, Argentina; email: gabriels@cima.fcen.uba.ar |
| 506 | |2 openaire |e Política editorial | ||
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| 504 | |a Carvalho, L., Jones, C., Ambrizzi, T., Opposite phases of the Antarctic Oscillation and relationships with intraseasonal to interannual activity in the tropics during the austral summer (2005) J. Climate, 18, pp. 702-718 | ||
| 504 | |a Fogt, R., Bromwich, D., Decadal variability of the ENSO teleconnection to the high-latitude South Pacific governed by coupling with the Southern Annular Mode (2006) J. Climate, 19, pp. 979-997 | ||
| 504 | |a Garreaud, R., Battisti, D., Interannual (ENSO) and interdecadal (ENSO-like) variability in the Southern Hemisphere tropospheric circulation (1999) J. Climate, 12, pp. 2113-2123 | ||
| 504 | |a Gillett, N., Kell, T., Jones, P., Regional climate impacts of the Southern Annular Mode (2006) Geophys. Res. Lett., 33, pp. L23704. , doi:10.1029/2006/GL027721 | ||
| 504 | |a Hendon, H., Thompson, D., Wheeler, M., Australian rainfall and surface temperature variations associated with the Southern Hemisphere annular mode (2007) J. Climate, 20, pp. 2452-2467 | ||
| 504 | |a Kalnay, E., The NCEP/NCAR 40-Year Reanalysis Project (1996) Bull. Amer. Meteor. Soc., 77, pp. 437-471 | ||
| 504 | |a Kidson, J., Indices of the Southern Hemisphere zonal wind (1988) J. Climate, 1, pp. 183-194 | ||
| 504 | |a Kidson, J., Principalmodes of Southern Hemisphere low-frequency variability obtained fromNCEP-NCAR reanalyses (1999) J. Climate, 12, pp. 2808-2830 | ||
| 504 | |a L'Heureux, M., Thompson, D., Observed relationships between the El Nin{ogonek} o-Southern Oscillation and the extratropical zonal-mean circulation (2006) J. Climate, 19, pp. 276-287 | ||
| 504 | |a Marshall, G., Trends in the southern annular mode from observations and reanalyses (2003) J. Climate, 16, pp. 4134-4143 | ||
| 504 | |a Marshall, G., Orr, A., van Lipzig, N., King, J., The impact of a changing Southern Hemisphere annular mode on Antarctic Peninsula summer temperatures (2006) J. Climate, 19, pp. 5388-5404 | ||
| 504 | |a Reason, C., Roualt, M., Links between the Antarctic Oscillation and winter rainfall over western South Africa (2005) Geophys. Res. Lett., 32, pp. L07705. , doi:10.1029/2005GL022419 | ||
| 504 | |a Robertson, A., Mechoso, C., Interannual and interdecadal variability of the South Atlantic convergence zone (2000) Mon. Wea. Rev., 128, pp. 2947-2957 | ||
| 504 | |a Rogers, J., van Loon, H., Spatial variability of sea level pressure and 500-mb height anomalies over the Southern Hemisphere (1982) Mon. Wea. Rev., 110, pp. 1375-1392 | ||
| 504 | |a Rusticucci, M., Penalba, O., Interdecadal changes in the precipitation seasonal cycle over southern South America and their relationship with surface temperature (2000) Climate Res, 16, pp. 1-15 | ||
| 504 | |a Schwerdtfeger, W., Climates of Central and South America (1976), 12, p. 532. , World Survey of Climatology, Elsevier; Sen Gupta, A., England, M., Coupled ocean-atmosphereice response to variations in the southern annular mode (2006) J. Climate, 19, pp. 4457-4486 | ||
| 504 | |a Setoh, T., Imawaki, S., Ostrovskii, A., Umatani, S., Interdecadal variations of ENSO signals and annual cycles revealed by wavelet analysis (1999) J. Oceanogr., 55, pp. 385-394 | ||
| 504 | |a Silvestri, G., Vera, C., Antarctic Oscillation signal on precipitation anomalies over southeastern South America (2003) Geophys. Res. Lett., 30, p. 2115. , doi:10.1029/2003GL018277 | ||
| 504 | |a Thompson, D., Wallace, J., Annular modes in the extratropical circulation. Part I: Month-to-month variability (2000) J. Climate, 13, pp. 1000-1016 | ||
| 504 | |a Ummenhofer, C., England, M., Interannual extremes in New Zealand precipitation linked to modes of Southern Hemisphere climate variability (2007) J. Climate, 20, pp. 5418-5440 | ||
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| 520 | 3 | |a The temporal stability of the southern annular mode (SAM) impacts on Southern Hemisphere climate during austral spring is analyzed. Results show changes in the typical hemispheric circulation pattern associated with SAM, particularly over South America and Australia, between the 1960s-70s and 1980s-90s. In the first decades, the SAM positive phase is associated with an anomalous anticyclonic circulation developed in the southwestern subtropical Atlantic that enhances moisture advection and promotes precipitation increase over southeastern South America (SESA). On the other hand, during the last decades the anticyclonic anomaly induced by the SAM's positive phase covers most of southern South America and the adjacent Atlantic, producing weakened moisture convergence and decreased precipitation over SESA as well as positive temperature anomaly advection over southern South America. Some stations in the Australia-New Zealand sector and Africa exhibit significant correlations between the SAM and precipitation anomalies in both or one of the subperiods, but they do not characterize a consistent area in which the SAM signal can be certainly determined. Significant changes of SAM influence on temperature anomalies on multidecadal time scales are observed elsewhere. Particularly over the Australia-New Zealand sector, significant positive correlations during the first decades become insignificant or even negative in the later period, whereas changes of opposite sign occur in the Antarctic Peninsula between both subperiods. © 2009 American Meteorological Society. |l eng | |
| 593 | |a Centro de Investigaciones del Mar y la Atmósfera/CONICET-UBA, DCAO/Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina | ||
| 690 | 1 | 0 | |a ANTARCTIC PENINSULA |
| 690 | 1 | 0 | |a ANTICYCLONIC ANOMALIES |
| 690 | 1 | 0 | |a ANTICYCLONIC CIRCULATION |
| 690 | 1 | 0 | |a AUSTRAL SPRING |
| 690 | 1 | 0 | |a CIRCULATION PATTERNS |
| 690 | 1 | 0 | |a MOISTURE ADVECTION |
| 690 | 1 | 0 | |a MOISTURE CONVERGENCE |
| 690 | 1 | 0 | |a MULTI-DECADAL TIME SCALE |
| 690 | 1 | 0 | |a NEW ZEALAND |
| 690 | 1 | 0 | |a NONSTATIONARY |
| 690 | 1 | 0 | |a POSITIVE CORRELATIONS |
| 690 | 1 | 0 | |a PRECIPITATION ANOMALIES |
| 690 | 1 | 0 | |a SOUTHERN ANNULAR MODE |
| 690 | 1 | 0 | |a SOUTHERN HEMISPHERE |
| 690 | 1 | 0 | |a TEMPERATURE ANOMALY |
| 690 | 1 | 0 | |a TEMPORAL STABILITY |
| 690 | 1 | 0 | |a MOISTURE |
| 690 | 1 | 0 | |a ADVECTION |
| 651 | 4 | |a AUSTRALIA | |
| 651 | 4 | |a SOUTH AMERICA | |
| 651 | 4 | |a SOUTHEASTERN SOUTH AMERICA | |
| 700 | 1 | |a Vera, C. | |
| 773 | 0 | |d 2009 |g v. 22 |h pp. 6142-6148 |k n. 22 |p J. Clim. |x 08948755 |w (AR-BaUEN)CENRE-5480 |t Journal of Climate | |
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| 856 | 4 | 0 | |u https://doi.org/10.1175/2009JCLI3036.1 |y DOI |
| 856 | 4 | 0 | |u https://hdl.handle.net/20.500.12110/paper_08948755_v22_n22_p6142_Silvestri |y Handle |
| 856 | 4 | 0 | |u https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_08948755_v22_n22_p6142_Silvestri |y Registro en la Biblioteca Digital |
| 961 | |a paper_08948755_v22_n22_p6142_Silvestri |b paper |c PE | ||
| 962 | |a info:eu-repo/semantics/article |a info:ar-repo/semantics/artículo |b info:eu-repo/semantics/publishedVersion | ||
| 999 | |c 69321 | ||