Holocene history of ENSO variance and asymmetry in the eastern tropical Pacific

Author:

Carré Matthieu1,Sachs Julian P.2,Purca Sara3,Schauer Andrew J.4,Braconnot Pascale5,Falcón Rommel Angeles6,Julien Michèle7,Lavallée Danièle8

Affiliation:

1. UM2-CNRS–Institut pour la Recherche et le Développement (IRD), Institut des Sciences de l’Evolution de Montpellier, UMR 5554, Place Eugène Bataillon, 34095 Montpellier, France.

2. School of Oceanography, University of Washington, Post Office Box 355351, Seattle, WA 98195, USA.

3. Instituto del Mar del Perú (IMARPE), Esquina Gamarra y general Valle S/N, Callao, Perú.

4. Department of Earth and Space Sciences, University of Washington, Post Office Box 351310, Seattle, WA 98195, USA.

5. Institut Pierre-Simon Laplace/Laboratoire des Sciences du Climat et de l’Environnement, unité mixte CEA-CNRS–Université de Versailles Saint-Quentin-en-Yvelines, Orme des merisiers, Bâtiment 712, 91191 Gif sur Yvette, France.

6. Ministerio de Cultura, Museo de sitio de Pachacamac, Lurín, Lima, Perú.

7. Archéologies et Sciences de l’Antiquité, UMR 7041, Maison René Ginouvès, 21 Allée de l’Université, 92023 Nanterre, France.

8. Archéologie des Amériques, UMR 8096, Maison René Ginouvès, 21 Allée de l’Université, 92023 Nanterre, France.

Abstract

El Niño shifted between the center and the East El Niño has changed quite a bit over the past 10,000 years. During some periods it was less variable than now, and during others it shifted from its current locale toward the central Pacific. Carré et al. analyzed the shells of mollusks from Peru to construct a record of the El Niño–Southern Oscillation (ENSO) in the eastern Pacific over the Holocene period. They compared this record with other records from the rest of the Pacific to reveal how much the strength and frequency of El Niños changed and how their positions varied. Science , this issue p. 1045

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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