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A climatology of daily synoptic circulation patterns and associated surface meteorology over southern South America

  • Paul C. LoikithEmail author
  • Luana Albertani Pampuch
  • Emily Slinskey
  • Judah Detzer
  • Carlos R. Mechoso
  • Armineh Barkhordarian
Article

Abstract

Synoptic circulation patterns, defined as anomalies in sea level pressure (SLP), 500 hPa geopotential height (Z500), and 250 hPa wind speed (V250) and referred to as large-scale meteorological patterns (LSMPs), are characterized using the self-organizing maps approach over southern South America. Results show a wide range of possible LSMP types over a 37-year period of study. LSMP type variability can be summarized as a spectrum from patterns dominated by positive SLP and Z500 anomalies with a poleward displacement of the strongest 250 hPa winds, to patterns dominated by similar structures but with anomalies of opposite sign. The LSMPs found are connected with lower tropospheric temperature and wind, precipitation, and the frequency of atmospheric rivers (ARs). This highlights LSMPs more closely associated with anomalous and potentially impactful surface meteorology. Results show ARs as primary drivers of heavy precipitation over some of the region and connect their occurrence to driving synoptic dynamics. Two important low frequency modes of climate variability, the Southern Annular Mode (SAM) and the El Nino Southern Oscillation (ENSO), show some influence on the frequency of LSMP type, with the SAM more directly related to LSMP type modulation than ENSO. This comprehensive climatology of synoptic variability across southern South America has potential to aid in a mechanistic approach to studying climate change projections of temperature, precipitation, and AR frequency in climate models.

Keywords

Synoptic climatology South America Atmospheric rivers 

Notes

Acknowledgements

P. L., J. D., C. R. M., and A. B. acknowledge support from the U.S. National Science Foundation AGS-1547899. E. S. acknowledges support from the NASA Indicators for the National Climate Assessment (NCA) Program. Climate indices are obtained from the U.S. National Oceanic and Atmospheric Administration via the Web at https://www.esrl.noaa.gov/psd/data/climateindices/list/. MERRA2 reanalysis is available from the U.S. National Aeronautics and Space Administration via the Web at https://gmao.gsfc.nasa.gov/reanalysis/MERRA/. ERA-Interim data are available via the Web at https://www.ecmwf.int/en/research/climate-reanalysis/era-interim. University of Delaware data are available at https://www.esrl.noaa.gov/psd/data/gridded/data.UDel_AirT_Precip.html. We thank Hans Von Storch and Silvina Solman for their helpful contribution and guidance on this work. We thank Nathaniel Johnson for providing the SOMs Matlab code.

References

  1. Andreoli RV, Kayano MT (2005) ENSO-related rainfall anomalies in South American and associate circulation features during warm and cold Pacific Decadal Oscillation regimes. Int J Climatol 25:2017–2030CrossRefGoogle Scholar
  2. Cassano EN, Glisan JM, Cassano JJ, Gutowski J, Seefeldt MW (2015) Self-organizing maps analysis of widespread temperature extremes in Alaska and Canada. Clim Res 62:199–218CrossRefGoogle Scholar
  3. Cassano JJ, Cassano EN, Seefeldt MW, Gutowski WJ, Glisan JM (2016) Synoptic conditions during wintertime temperature extremes in Alaska. J Geophys Res Atmos 121:3241–3262CrossRefGoogle Scholar
  4. Chen R, Lu R (2016) Role of large-scale circulation and terrain in causing extreme heat in western China. J. Clim 29:2511–2527CrossRefGoogle Scholar
  5. Chen HW, Alley RB, Zhang F (2016) Interannual Arctic sea ice variability and associated winter weather patterns: a regional perspective for 1979–2014. J Geophys Res Atmos 121:14433–14455.  https://doi.org/10.1002/2016jd024769 CrossRefGoogle Scholar
  6. Dacre HF, Clark PA, Martinez-Alvarado O, Stringer MA, Lavers DA (2015) How do atmospheric rivers form? Bull Am Meteorol Soc 96:1243–1255CrossRefGoogle Scholar
  7. DeAngeles AM, Broccoli AJ, Decker SG (2013) A comparison of CMIP3 simulations of precipitation over North America with observations: daily statistics and circulation features accompanying extreme events. J Clim 26:3209–3230CrossRefGoogle Scholar
  8. Fogt RL, Bromwich DH (2006) Decadal variability of the ENSO teleconnection to the high-latitude South Pacific governed by coupling with the southern annular mode. J Clim 19:979–997CrossRefGoogle Scholar
  9. Ford TW, Schoof JT (2016) Characterizing extreme and oppressive heat waves in Illinois. J Geophys Res Atmos 121:3326–3338.  https://doi.org/10.1002/2016jd025721 CrossRefGoogle Scholar
  10. Garreaud RD, Vuille M, Compagnucci R, Marengo J (2009) Present-day South American climate. Palaeogeogr Palaeoclimatol Palaeoecol 281:180–195CrossRefGoogle Scholar
  11. Geirinhas JL, Trigo RM, Libonati R, Coelho CAS, Palmeira AC (2018) Climatic and synoptic characterization of heat waves in Brazil. Int J Climatol 38:1760–1776CrossRefGoogle Scholar
  12. Gelaro R et al (2017) The modern-era retrospective analysis for research and applications, version 2 (MERRA-2). J Clim 30:5419–5454CrossRefGoogle Scholar
  13. Gervais M, Atallah E, Gyakum JR, Tremblay LB (2016) Arctic air masses in a warming world. J Clim 29:2359–2373CrossRefGoogle Scholar
  14. Gibson PB, Perkins-Kirkpatrick SE, Uotila P, Pepler AS, Alexander LV (2017) On the use of self-organizing maps for studying climate extremes. J Geophys Res Atmos 122:3891–3903CrossRefGoogle Scholar
  15. Gillett NP, Kell TD, Jones PD (2006) Regional climate impacts of the Southern Annular Mode. Geophys Res Lett 33:L23704CrossRefGoogle Scholar
  16. Gimeno L, Nieto R, Vázquez M, Lavers DA (2014) Atmospheric rivers: a mini-review. Front Earth Sci 2:2.1–2.6CrossRefGoogle Scholar
  17. Gimeno L, Dominguez F, Nieto R, Trigo R, Drumond A, Reason CJC, Taschetto AS, Ramos AM, Kumar R, Marengo J (2016) Major mechanisms of atmospheric moisture transport and their role in extreme precipitation. Annu Rev Environ Resour 41:117–141CrossRefGoogle Scholar
  18. Glisan JM, Gutowski WJ, Cassano JJ, Cassano EN, Seefeldt MW (2016) Analysis of WRF extreme daily precipitation over Alaska using self-organizing maps. J Geophys Res Atmos 121:7746–7761CrossRefGoogle Scholar
  19. Grimm AM, Tedeschi RG (2009) ENSO and extreme rainfall events in South America. J Clim 22:1589–1609CrossRefGoogle Scholar
  20. Grimm AM, Barros VR, Doyle ME (2000) Climate variability in southern South America associated with El Nino and La Nina events. J Clim 13:35–58CrossRefGoogle Scholar
  21. Grotjahn R, Lee Y-Y (2016) On climate model simulations of the large-scale meteorology associated with California heat waves. J Geophys Res Atmos 121:18–32CrossRefGoogle Scholar
  22. Grotjahn R et al (2016) North American extreme temperature events and related large scale meteorological patterns: a review of statistical methods, dynamics, modeling, and trends. Clim Dyn 46:1151–1184CrossRefGoogle Scholar
  23. Guan B, Waliser DE (2015) Detection of atmospheric rivers: Evaluation and application of an algorithm for global studies. J Geophys Res Atmos 120:12514–12535.  https://doi.org/10.1002/2015JD024257 CrossRefGoogle Scholar
  24. Guan B, Waliser DE, Ralph FM (2018) An intercomparison between reanalysis and dropsonde observations of the total water vapor transport in individual atmospheric rivers. J Hydrometeorol 19:321–337.  https://doi.org/10.1175/JHM-D-17-0114.1 CrossRefGoogle Scholar
  25. Hewitson BC, Crane RG (2002) Self-organizing maps: applications to synoptic climatology. Clim Res 22:13–26CrossRefGoogle Scholar
  26. Johnson NC, Feldstein SB (2010) The continuum of North Pacific sea level pressure patterns: intraseasonal, interannual, and interdecadal variability. J Clim 23:851–867CrossRefGoogle Scholar
  27. Johnson NC, Feldstein SB, Tremblay B (2008) The continuum of Northern Hemisphere teleconnection patterns and a description of the NAO shift with the use of self-organizing maps. J Clim 21:6354–6371CrossRefGoogle Scholar
  28. Kawazoe S, Gutowski WJ (2013) Regional very heavy daily precipitation in NARCCAP simulations. J Hydrometeorol 14:1212–1227CrossRefGoogle Scholar
  29. Kayano MT, Andreoli RV, De Souza RAF (2011) Evolving anomalous SST patterns leading to ENSO extremes. Relations between the tropical Pacific and Atlantic Oceans and the influence on the South American rainfall. Int J Climatol 31:1119–1134CrossRefGoogle Scholar
  30. Kayano MT, Andreoli RV, de Souza RAF, Garcia SR (2017) Spatiotemporal variability modes of surface air temperature in South America during the 1951–2010 period: ENSO and non-ENSO components. Int J Climatol 37:1–13CrossRefGoogle Scholar
  31. Knight JR, Allen RJ, Folland CK, Vellinga M, Mann ME (2005) A signature of persistent natural thermohaline circulation cycles in observed climate. Geophys Res Lett 32:L20708CrossRefGoogle Scholar
  32. Knight JR, Folland CK, Scaife AA (2006) Climate impacts of the Atlantic Multidecadal Oscillation. Geophys Res Lett 33:L17706CrossRefGoogle Scholar
  33. Krueger O, Hegerl GC, Tett SFB (2015) Evaluation of mechanisms of hot and cold days in climate models over Central Europe. Environ Res Lett 10:014002CrossRefGoogle Scholar
  34. Lau N-C, Nath MJ (2012) A model study of heat waves over North America: meteorological aspects and projections for the twenty-first century. J Clim 25:4761–4784CrossRefGoogle Scholar
  35. Lavers DA, Villarini G, Allan RP, Wood EF, Wade AJ (2012) The detection of atmospheric rivers in atmospheric reanalyses and their links to British winter floods and the large-scale climatic circulation. J Geophys Res 117:D20106.  https://doi.org/10.1029/2012JD018027 CrossRefGoogle Scholar
  36. Lee Y-Y, Gotjahn R (2016) California Central Valley summer heat waves from two ways. J Clim 29:1201–1217CrossRefGoogle Scholar
  37. Lennard C, Hegerl G (2015) Relating changes in synoptic circulation to the surface rainfall response using self-organising maps. Clim Dyn 44:861–879CrossRefGoogle Scholar
  38. Loikith PC, Broccoli AJ (2012) Characteristics of observed atmospheric circulation patterns associated with temperature extremes over North America. J Clim 25:7266–7281CrossRefGoogle Scholar
  39. Loikith PC, Broccoli AJ (2015) Comparison between observed and model-simulated atmospheric circulation patterns associated with extreme temperature days over North America using CMIP5 historical simulations. J Clim 28:2063–2079CrossRefGoogle Scholar
  40. Loikith PC, Waliser DE, Lee H, Neelin JD, Lintner B, McGinnis S, Mearns L, Kim J (2015) Evaluation of large-scale meteorological patterns associated with temperature extremes in the NARCCAP regional climate model simulations. Clim Dyn 45:3257–3274CrossRefGoogle Scholar
  41. Loikith PC, Lintner B, Sweeney A (2017a) Characterizing large-scale meteorological patterns and associated temperature and precipitation extremes over the northwestern United States using self-organizing maps. J Clim 30:2829–2847CrossRefGoogle Scholar
  42. Loikith PC, Detzer J, Mechoso CR, Lee H, Barkhordarian A (2017b) The influence of recurrent modes of climate variability on the occurrence of monthly temperature extremes over South America. J Geophys Res Atmos.  https://doi.org/10.1002/2017JD027561 Google Scholar
  43. Muñoz ÁG, Goddard L, Robertson AW, Kushnir Y, Baethgen W (2015) Cross-time scale interactions and rainfall extreme events in southeastern South America for the austral summer. Part I: potential predictors. J Clim 28:7894–7913CrossRefGoogle Scholar
  44. Neiman PJ, Ralph FM, Wick GA, Lundquist JD, Dettinger MD (2008) Meteorological characteristics and overland precipitation impacts of atmospheric rivers affecting the West Coast of North America based on eight years of SSM/I satellite observations. J Hydrometeorol 9:22–47.  https://doi.org/10.1175/2007JHM855.1 CrossRefGoogle Scholar
  45. Pezza AB, van Rensch P, Cai W (2012) Severe heat waves in Southern Australia: synoptic climatology and large scale connections. Clim Dyn 38:209–224CrossRefGoogle Scholar
  46. Radic V, Cannon AJ, Menounos B, Nayeob G (2015) Future changes in autumn atmospheric river events in British Columbia, Canada, as projected CMIP global climate models. J Geophys Res Atmos 120:9279–9302CrossRefGoogle Scholar
  47. Ralph FM, Neiman PJ, Wick GA (2004) Satellite and CALJET aircraft observations of atmospheric rivers over the eastern North Pacific Ocean during the winter of 1997/98. Mon Weather Rev 132:1721–1745CrossRefGoogle Scholar
  48. Reboita MS, Ambrizzi T, Porfírio da Rocha R (2009) Relationship between the southern annular mode and southern hemisphere atmospheric systems. Rev Bras Meteorol 24:48–55CrossRefGoogle Scholar
  49. Reichle RH et al (2018) Land surface precipitation in MERRA-2. J Clim 30:1643–1664CrossRefGoogle Scholar
  50. Renom M, Rusticucci M, Barreiro M (2011) Multidecadal changes in the relationship between extreme temperature events in Uruguay and the general atmospheric circulation. Clim Dyn 37:2471–2480CrossRefGoogle Scholar
  51. Ryoo J-M, Waliser DE, Waugh DW, Wong S, Fetzer EJ, Fung I (2015) Classification of atmospheric river events on the U.S. West Coast using a trajectory model. J Geophys Res Atmos 120:3007–3028CrossRefGoogle Scholar
  52. Sheridan SC, Lee CC (2011) The self-organizing map in synoptic climatological research. Prog Phys Geogr 35:109–119CrossRefGoogle Scholar
  53. Silvestri G, Vera C (2009) Nonstationary impacts of the southern annular mode on southern hemisphere climate. J Clim 22:6142–6148CrossRefGoogle Scholar
  54. Solman SA, Menendez CG (2003) Weather regimes in the South American sector and neighbouring oceans during winter. Clim Dyn 21:91–104CrossRefGoogle Scholar
  55. Thompson DWJ, Wallace JM (2000) Annular modes in the extratropical circulation. Part I: month-to-month variability. J Clim 13:1000–1016CrossRefGoogle Scholar
  56. Viale M, Valenzuela R, Garreaud RD, Ralph MF (2018) Impacts of atmospheric rivers on precipitation in southern South America. J Hydrometeorol 19:1671–1687CrossRefGoogle Scholar
  57. Waliser D, Guan B (2017) Extreme winds and precipitation during landfall of atmospheric rivers. Nat Geosci 10:179–183CrossRefGoogle Scholar
  58. Warner MD, Mass CF (2017) Changes in climatology, structure, and seasonality of northeast Pacific atmospheric rivers in CMIP5 climate simulations. J Hydrometeorol 18:2131–2141CrossRefGoogle Scholar
  59. Wolter K, Timlin MS (1998) Measuring the strength of ENSO events: how does 1997/1998 rank? Weather 53:315–324CrossRefGoogle Scholar
  60. Xie Z, Black RX, Deng Y (2017) The structure and large-scale organization of extreme cold waves over the conterminous United States. Clim Dyn 49:4075–4088CrossRefGoogle Scholar
  61. Zhu Y, Newell RE (1998) A proposed algorithm for moisture fluxes from atmospheric rivers. Mon Weather Rev 126:725–735CrossRefGoogle Scholar

Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Department of GeographyPortland State UniversityPortlandUSA
  2. 2.Departamento de Engenharia Ambiental, Instituto de Ciência e TecnologiaUNESP-Univ. Estadual Paulista, Campus São José dos CamposSão José dos CamposBrazil
  3. 3.Department of Atmospheric and Oceanic SciencesUniversity of California Los AngelesLos AngelesUSA
  4. 4.Jet Propulsion LaboratoryCalifornia Institute of TechnologyPasadenaUSA

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