Jacques-Coper, M.; Brönnimann, S.; Martius, O.; Vera, C.; Cerne, B. "Summer heat waves in southeastern Patagonia: An analysis of the intraseasonal timescale" (2016) International Journal of Climatology. 36(3):1359-1374
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We explore the occurrence of intraseasonal summer heat waves in southeastern Patagonia (SEPG, 46°-52°S; 65°-70°W) since the late 19th century by means of the Twentieth Century Reanalysis version 2 (20CRv2). In total, we identify 201 cases for 1872-2010 using criteria of intensity and persistence. In SEPG, the corresponding intraseasonal temperature signals are centred around the first day of each cluster of days fulfilling those conditions (named day 0). The mean warm deviation lasts for approximately 2weeks and exhibits a mean temperature peak of 4.3°C on day 0 (the warmest day in the mean signal). In a regional context, the mean temperature perturbation associated with these heat waves affects a broad area on both sides of the Andes. The warming in SEPG is caused by temperature advection and enhanced radiative heating, following a high pressure system over southern South America (SSA). This atmospheric perturbation is embedded in a wave-train-like pattern along the South Pacific. As part of this pattern, a cyclonic anomaly progresses eastward over the Tasman Sea in Oceania, moving from southeastern Australia (day -6, causing a dry anomaly there) over New Zealand (day -3, inducing a wet anomaly on its Southern Island). The anomalous circulation triggered by the wave train leads thus to a teleconnection between SSA and Oceania, documented in a previous work for the interannual scale. Two thirds of the heat wave events are linked to enhanced ascent in the South Atlantic Convergence Zone (SACZ) and around one third of the events within 1957-2010 are associated with extreme absolute maximum temperatures observed at a station-based record from SEPG. Finally, possible spatial modulations of the wave train pattern at the interannual and interdecadal timescales are discussed. © 2016 Royal Meteorological Society.


Documento: Artículo
Título:Summer heat waves in southeastern Patagonia: An analysis of the intraseasonal timescale
Autor:Jacques-Coper, M.; Brönnimann, S.; Martius, O.; Vera, C.; Cerne, B.
Filiación:Oeschger Centre for Climate Change Research and Institute of Geography, University of Bern, Switzerland
CIMA/CONICET-UBA, DCAO/FCEN, UMI-IFAECI/CNRS, Universidad de Buenos Aires, Argentina
Palabras clave:Heat waves; Intraseasonal variability; Oceania; Patagonia; South America; Temperature; Warm season; Climate change; Temperature; Heat waves; Intraseasonal variability; Oceania; Patagonia; South America; Warm seasons; Climatology; air temperature; atmospheric circulation; extreme event; nineteenth century; regional climate; seasonal variation; summer; teleconnection; timescale; twentieth century; warming; Australia; New Zealand; Pacific Ocean; Pacific Ocean (South); Patagonia; Tasman Sea
Página de inicio:1359
Página de fin:1374
Título revista:International Journal of Climatology
Título revista abreviado:Int. J. Climatol.


  • Abram, N.J., Mulvaney, R., Vimeux, F., Phipps, S.J., Turner, J., England, M.H., Evolution of the Southern Annular Mode during the past millennium (2014) Nat. Clim. Change, 4, pp. 564-569
  • Alvarez, M., Vera, C.S., Kiladis, G.N., Liebmann, B., Influence of the Madden Julian Oscillation on precipitation and surface air temperature in South America (2015) Clim. Dyn., pp. 1-18
  • Berbery, E.H., Nogués-Paegle, J., Intraseasonal interactions between the tropics and extratropics in the Southern Hemisphere (1993) J. Atmos. Sci., 50, pp. 1950-1965
  • Berman, A.L., Silvestri, G., Compagnucci, R., Eastern Patagonia seasonal precipitation: influence of Southern Hemisphere circulation and links with subtropical South American precipitation (2012) J. Clim., 25, pp. 6781-6795
  • Berman, A., Silvestri, G., Compagnucci, R., On the variability of seasonal temperature in southern South America (2013) Clim. Dyn., 40, pp. 1863-1878
  • Bromwich, D.H., Fogt, R.L., Hodges, K.I., Walsh, J.E., A tropospheric assessment of the ERA-40, NCEP, and JRA-25 global reanalyses in the polar regions (2007) J. Geophys. Res. Atmos., 112, p. D10111
  • Brönnimann, S., Compo, G.P., Spadin, R., Allan, R., Adam, W., Early ship-based upper-air data and comparison with the Twentieth Century Reanalysis (2011) Clim. Past, 7, pp. 265-276
  • Brönnimann, S., Grant, A.N., Compo, G.P., Ewen, T., Griesser, T., Fischer, A.M., Schraner, M., Stickler, A., A multi-data set comparison of the vertical structure of temperature variability and change over the Arctic during the past 100 years (2012) Arctic, 39, pp. 1577-1598
  • Carrasco, J., Casassa, G., Rivera, A., Meteorological and climatological aspects of the Southern Patagonia Icefield (2002) The Patagonian Icefields SE - 4, pp. 29-41. , Casassa G, Sepúlveda F, Sinclair R (eds). Springer US, New York, USA
  • Carvalho, L.M.V., Jones, C., Liebmann, B., Extreme precipitation events in southeastern South America and large-scale convective patterns in the South Atlantic Convergence Zone (2002) J. Clim., 15, pp. 2377-2394
  • Cazes-Boezio, G., Robertson, A.W., Mechoso, C.R., Seasonal dependence of ENSO teleconnections over South America and relationships with precipitation in Uruguay (2003) J. Clim., 16, pp. 1159-1176
  • Cerne, S.B., Vera, C.S., Influence of the intraseasonal variability on heat waves in subtropical South America (2011) Clim. Dyn., 36, pp. 2265-2277
  • Compagnucci, R.H., Agosta, E.A., Vargas, W.M., Climatic change and quasi-oscillations in central-west Argentina summer precipitation: main features and coherent behaviour with southern African region (2002) Clim. Dyn., 18, pp. 421-435
  • Compo, G.P., Whitaker, J.S., Sardeshmukh, P.D., Matsui, N., Allan, R.J., Yin, X., Gleason, B.E., Worley, S.J., The Twentieth Century Reanalysis Project (2011) Q. J. R. Meteorol. Soc., 137, pp. 1-28
  • Del Valle, H.F., Elissalde, N.O., Gagliardini, D.A., Milovich, J., Status of desertification in the Patagonian region: assessment and mapping from satellite imagery (1998) Arid Soil Res. Rehabil., 12, pp. 95-121. ,
  • Garreaud, R., Cold air incursions over subtropical South America: mean structure and dynamics (2000) Mon. Weather Rev., 128, pp. 2544-2559
  • Garreaud, R.D., Vuille, M., Compagnucci, R., Marengo, J., Present-day South American climate (2009) Palaeogeogr. Palaeoclimatol. Palaeoecol., 281, pp. 180-195. ,
  • Garreaud, R., Lopez, P., Minvielle, M., Rojas, M., Large-scale control on the Patagonian climate (2012) J. Clim., 26, pp. 215-230
  • Gillett, N.P., Kell, T.D., Jones, P.D., Regional climate impacts of the Southern Annular Mode (2006) Geophys. Res. Lett., 33, p. L23704
  • Gonzalez, P.M., Vera, C., Summer precipitation variability over South America on long and short intraseasonal timescales (2014) Clim. Dyn, 43, pp. 1993-2007
  • Hertel, D., Therburg, A., Villalba, R., Above- and below-ground response by Nothofagus pumilio to climatic conditions at the transition from the steppe-forest boundary to the alpine treeline in southern Patagonia, Argentina (2008) Plant Ecol. Divers., 1, pp. 21-33
  • Hoskins, B.J., Simmons, A.J., Andrews, D.G., Energy dispersion in a barotropic atmosphere (1977) Q. J. R. Meteorol. Soc., 103, pp. 553-567
  • Jacques-Coper, M., Brönnimann, S., Summer temperature in the eastern part of southern South America: its variability in the twentieth century and a teleconnection with Oceania (2014) Clim. Dyn., 43, pp. 2111-2130
  • Jacques-Coper, M., Garreaud, R.D., Characterization of the 1970s climate shift in South America (2014) Int. J. Climatol, 43, pp. 2111-2130
  • Jacques-Coper, M., Brönnimann, S., Martius, O., Vera, C.S., Cerne, S.B., Evidence for a modulation of the intraseasonal summer temperature in Eastern Patagonia by the Madden-Julian Oscillation (2015) J. Geophys. Res. Atmos.
  • Jin, F., Hoskins, B.J., The direct response to tropical heating in a baroclinic atmosphere (1995) J. Atmos. Sci., 52, pp. 307-319
  • Jones, J.M., Fogt, R.L., Widmann, M., Marshall, G.J., Jones, P.D., Visbeck, M., Historical SAM variability. Part I: century-length seasonal reconstructions* (2009) J. Clim., 22, pp. 5319-5345
  • Kalnay, E., Kanamitsu, M., Kistler, R., Collins, W., Deaven, D., Gandin, L., Iredell, M., Joseph, D., The NCEP/NCAR 40-year reanalysis project (1996) Bull. Am. Meteorol. Soc., 77, pp. 437-471
  • Lara, A., Villalba, R., Wolodarsky-Franke, A., Aravena, J.C., Luckman, B.H., Cuq, E., Spatial and temporal variation in Nothofagus pumilio growth at tree line along its latitudinal range (35°40'-55° S) in the Chilean Andes (2005) J. Biogeogr., 32, pp. 879-893
  • Lee, S., Held, I.M., Baroclinic wave packets in models and observations (1993) J. Atmos. Sci., 50, pp. 1413-1428
  • Liebmann, B., Kiladis, G.N., Marengo, J., Ambrizzi, T., Glick, J.D., Submonthly convective variability over South America and the South Atlantic Convergence Zone (1999) J. Clim., 12, pp. 1877-1891
  • Lima, K., Satyamurty, P., Fernández, J., Large-scale atmospheric conditions associated with heavy rainfall episodes in Southeast Brazil (2010) Theor. Appl. Climatol., 101, pp. 121-135
  • Madden, R.A., Julian, P.R., Detection of a 40-50 day oscillation in the zonal wind in the tropical Pacific (1971) J. Atmos. Sci., 28, pp. 702-708
  • Marshall, G.J., Trends in the Southern Annular Mode from observations and reanalyses (2003) J. Clim., 16, pp. 4134-4143
  • Mazzonia, E., Vazquez, M., Desertification in Patagonia (2009) Natural Hazards and Human-Exacerbated Disasters in Latin America, 13, pp. 351-377. ,, Developments in Earth Surface Processes, Elsevier
  • Mo, K.C., Higgins, R.W., The Pacific-South American modes and tropical convection during the Southern Hemisphere winter (1998) Mon. Weather Rev., 126, pp. 1581-1596
  • Müller, G.V., Berri, G.J., Atmospheric Circulation associated with persistent generalized frosts in central-southern South America (2007) Mon. Weather Rev., 135, pp. 1268-1289
  • Orlanski, I., Chang, E.K.M., Ageostrophic geopotential fluxes in downstream and upstream development of baroclinic waves (1993) J. Atmos. Sci., 50, pp. 212-225
  • Paruelo, J.M., Beltran, A., Jobbagy, E., Sala, O.E., Golluscio, R.A., The climate of Patagonia: general patterns and controls on biotic (1998) Ecol. Aust., 8, pp. 85-101
  • Prohaska, F., (1976) The Climate of Argentina, Paraguay, and Uruguay, 12. , Schwerdtfeger W (ed). Elsevier: Amsterdam, The Netherlands
  • Rakich, C.S., Holbrook, N.J., Timbal, B., A pressure gradient metric capturing planetary-scale influences on eastern Australian rainfall (2008) Geophys. Res. Lett., 35, p. L08713
  • Rasmussen, L.A., Conway, H., Raymond, C.F., Influence of upper air conditions on the Patagonia icefields (2007) Glob. Planet. Change, 59, pp. 203-216. ,
  • Rignot, E., Rivera, A., Casassa, G., Contribution of the Patagonia Icefields of South America to sea level rise (2003) Science, 302, pp. 434-437. ,
  • Robertson, A.W., Mechoso, C.R., Circulation regimes and low-frequency oscillations in the South Pacific sector (2003) Mon. Weather Rev., 131, pp. 1566-1576
  • Solman, S.A., Orlanski, I., Poleward shift and change of frontal activity in the Southern Hemisphere over the last 40 years (2013) J. Atmos. Sci., 71, pp. 539-552
  • Sprenger, M., Martius, O., Arnold, J., Cold surge episodes over southeastern Brazil - a potential vorticity perspective (2013) Int. J. Climatol., 33, pp. 2758-2767
  • Thompson, D.W.J., Solomon, S., Interpretation of recent Southern Hemisphere climate change (2002) Science, 296, pp. 895-899. ,
  • Ummenhofer, C.C., England, M.H., Interannual extremes in New Zealand precipitation linked to modes of Southern Hemisphere climate variability (2007) J. Clim., 20, pp. 5418-5440. ,, (Accessed August 14, 2013)
  • Uppala, S.M., Kållberg, P.W., Simmons, A.J., Andrae, U., Bechtold, V.D.C., Fiorino, M., Gibson, J.K., Woollen, J., The ERA-40 re-analysis (2005) Q. J. R. Meteorol. Soc., 131, pp. 2961-3012
  • Wang, G., Cai, W., Climate-change impact on the 20th-century relationship between the Southern Annular Mode and global mean temperature (2013) Sci. Rep., 3, pp. 1-6
  • Zhang, C., Madden-Julian Oscillation (2005) Rev. Geophys., 43, p. RG2003
  • Zhang, C., Madden-Julian Oscillation: bridging weather and climate (2013) Bull. Am. Meteorol. Soc., 94, pp. 1849-1870
  • Zhang, Q., Körnich, H., Holmgren, K., How well do reanalyses represent the southern African precipitation? (2012) Clim. Dyn., 40, pp. 951-962. ,, (Accessed April 3, 2013)


---------- APA ----------
Jacques-Coper, M., Brönnimann, S., Martius, O., Vera, C. & Cerne, B. (2016) . Summer heat waves in southeastern Patagonia: An analysis of the intraseasonal timescale. International Journal of Climatology, 36(3), 1359-1374.
---------- CHICAGO ----------
Jacques-Coper, M., Brönnimann, S., Martius, O., Vera, C., Cerne, B. "Summer heat waves in southeastern Patagonia: An analysis of the intraseasonal timescale" . International Journal of Climatology 36, no. 3 (2016) : 1359-1374.
---------- MLA ----------
Jacques-Coper, M., Brönnimann, S., Martius, O., Vera, C., Cerne, B. "Summer heat waves in southeastern Patagonia: An analysis of the intraseasonal timescale" . International Journal of Climatology, vol. 36, no. 3, 2016, pp. 1359-1374.
---------- VANCOUVER ----------
Jacques-Coper, M., Brönnimann, S., Martius, O., Vera, C., Cerne, B. Summer heat waves in southeastern Patagonia: An analysis of the intraseasonal timescale. Int. J. Climatol. 2016;36(3):1359-1374.