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Extreme wave climate changes in Central-South America

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  • Cristina Izaguirre
  • Fernando Méndez
  • Antonio Espejo
  • Inigo Losada
  • Borja Reguero

Abstract

The spatial and temporal variability of extreme wave climate along the Central-South American continent is analyzed. The study evaluates changes in the intensity of extreme significant wave height (SWH) throughout the year over the 1980–2008 period, using a calibrated long-term wave reanalysis database forced with NCEP/NCAR reanalysis. A non-stationary extreme value model, based on monthly maxima with a new approach for long-term trends, has been applied. Results show a common positive trend in the Pacific basin throughout all seasons and a significant decreasing trend pattern in the area of Surinam and north of Brazil, on the Atlantic border (up to −1.5 cm/year in March–April–May). A higher increase of the extreme wave heights is found in the austral summer (December–January–February) at Tierra de Fuego and the Falkland Islands, reaching 6.5 cm/year (which means 1.82 m for the 28 years studied). Furthermore, the complete reanalysis period (1948–2008) is analyzed in order to compare results with the assimilation data period (1980–2008), resulting in some discrepancies, especially in the Atlantic basin. Copyright Springer Science+Business Media Dordrecht 2013

Suggested Citation

  • Cristina Izaguirre & Fernando Méndez & Antonio Espejo & Inigo Losada & Borja Reguero, 2013. "Extreme wave climate changes in Central-South America," Climatic Change, Springer, vol. 119(2), pages 277-290, July.
    • Handle: RePEc:spr:climat:v:119:y:2013:i:2:p:277-290
    DOI: 10.1007/s10584-013-0712-9
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    References listed on IDEAS

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    1. Adam Butler & Janet E. Heffernan & Jonathan A. Tawn & Roger A. Flather, 2007. "Trend estimation in extremes of synthetic North Sea surges," Journal of the Royal Statistical Society Series C, Royal Statistical Society, vol. 56(4), pages 395-414, August.
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    Cited by:

    1. Alexandra Tragaki & Christina Gallousi & Efthimios Karymbalis, 2018. "Coastal Hazard Vulnerability Assessment Based on Geomorphic, Oceanographic and Demographic Parameters: The Case of the Peloponnese (Southern Greece)," Land, MDPI, vol. 7(2), pages 1-16, May.
    2. Orejarena-Rondón, Andrés F. & Restrepo, Juan C. & Correa-Metrio, Alex & Orfila, Alejandro, 2022. "Wave energy flux in the Caribbean Sea: Trends and variability," Renewable Energy, Elsevier, vol. 181(C), pages 616-629.
    3. Walter Dragani & Paula Martin & Guadalupe Alonso & Jorge Codignotto & Bárbara Prario & Guido Bacino, 2013. "Wind wave climate change: Impacts on the littoral processes at the Northern Buenos Aires Province Coast, Argentina," Climatic Change, Springer, vol. 121(4), pages 649-660, December.

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