Journal articles
Rapid reorganization in ocean biogeochemistry off Peru towards the end of the Little Ice Age
Dimitri Gutiérrez
1
Abdelfettah Sifeddine
2
David Field
3
Luc Ortlieb
2
Gabriel Vargas
4
Francisco P. Chavez
3
Federico Velazco
1
Vicente Ferreira
5
P. Tapia
6
Renato Salvatteci
1
Hugues Boucher
2
M.C. Morales
1
Jorge Valdés
7
Jean-Louis Reyss
8
A. Campusano
1
Mohammed Boussafir
9
Magloire Mandeng Yogo
2
M. García
10
Tim R. Baumgartner
4
Gabriel Vargas 4
Author
Francisco P. Chavez 3
Author
Federico Velazco 1
Author
Vicente Ferreira 5
Author
Jorge Valdés 7
Author
Jean-Louis Reyss 8
Author
A. Campusano 1
Author
Mohammed Boussafir 9
Author IdHAL : mohammed-boussafir ResearcherId : http://www.researcherid.com/rid/E-5272-2018 IdRef : https://www.idref.fr/147728053 ORCID : https://orcid.org/0000-0001-6081-6456
1
Direccion de Investigaciones Oceanograficas (P.O. Box 22, Callao - Peru)
- IMARPE - Instituto del Mar del Peru (Esquina Gamarra y General Valle S/N Chucuito Callao - Peru)
2
PALEOTROPIQUE - Paléo-environnements tropicaux et variabilité climatique (IRD Ile de France - 32 rue Henri Varagnat - 93143 Bondy Cedex - France)
3
MBARI - Monterey Bay Aquarium Research Institute (7700 Sandholdt Road · Moss Landing, CA 95039-USA - United States)
4
Departamento de Geología (Plaza Ercilla 803, Santiago - Chile)
- UCHILE - Universidad de Chile = University of Chile [Santiago] (Av. Libertador Bernardo O'Higgins 1058, Santiago de Chile - Chile)
5
Centro de Investigacion Científica y de Educacion Superior de Ensenada (22860 Ensenada, Baja California - Mexico)
6
Laboratorio de Palinologia y Paleobotanica (Peru)
- UPCH - Universidad Peruana Cayetano Heredia (Av. Honorio Delgado 430, San Martín de Porres, 15102, Pérou - Peru)
7
Facultad de Recursos del Mar (Casilla 170, Antofagasta - Chile)
- Universidad de Antofagasta (Chile)
8
LSCE - Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] (Bât. 12,
avenue de la Terrasse,
F-91198 GIF-SUR-YVETTE CEDEX
- France)
- UVSQ - Université de Versailles Saint-Quentin-en-Yvelines : UMR8212 (55 avenue de Paris - 78035 Versailles cedex - France)
- CEA - Commissariat à l'énergie atomique et aux énergies alternatives : DRF/LSCE (Centre de Saclay Centre de Grenoble Centre de Cadarache etc - France)
- INSU - CNRS - Institut national des sciences de l'Univers : UMR8212 (INSU-CNRS 3 rue Michel-Ange, 75794 Paris Cedex 16 - France)
- Université Paris-Saclay (Espace Technologique, Bat. Discovery - RD 128 - 2e ét., 91190 Saint-Aubin - France)
- CNRS - Centre National de la Recherche Scientifique : UMR8212 (France)
9
ISTO - Institut des Sciences de la Terre d'Orléans (Projet I.S.T.E. 1A, rue de la Férollerie 45071 ORLEANS CEDEX 2 - France)
- Université de Tours (60 rue du Plat d'Étain, 37020 Tours cedex 1 - France)
- INSU - CNRS - Institut national des sciences de l'Univers (INSU-CNRS 3 rue Michel-Ange, 75794 Paris Cedex 16 - France)
- UO - Université d'Orléans (Château de la Source - Avenue du Parc Floral - BP 6749 - 45067 Orléans cedex 2 - France)
- CNRS - Centre National de la Recherche Scientifique : UMR6113 (France)
10
Petroproduccion (Av. 6 de Diciembre y G. Can˜ero, PO Box 17-01-1006, Quito, Ecuador - Ecuador)
- Petroecuador (France)
Abstract : Climate and ocean ecosystem variability has been well recognized during the twentieth century but it is unclear if modern ocean biogeochemistry is susceptible to the large, abrupt shifts that characterized the Late Quaternary. Time series from marine sediments off Peru show an abrupt centennial-scale biogeochemical regime shift in the early nineteenth century, of much greater magnitude and duration than present day multi-decadal variability. A rapid expansion of the subsurface nutrient-rich, oxygen-depleted waters resulted in the present-day higher biological productivity, including pelagic fish. The shift was likely driven by a northward migration of the Intertropical Convergence Zone and the South Pacific Subtropical High to their present day locations, coupled with a strengthening of Walker circulation, towards the end of the Little Ice Age. These findings reveal the potential for large reorganizations in tropical Pacific climate with immediate effects on ocean biogeochemical cycling and ecosystem structure.
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Journal articles
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https://hal-insu.archives-ouvertes.fr/insu-00409832
Contributor : Nathalie Pothier <>
Submitted on : Friday, September 4, 2009 - 5:09:38 PM
Last modification on : Thursday, August 6, 2020 - 4:33:09 PM
Long-term archiving on: : Monday, October 15, 2012 - 4:10:46 PM
Contributor : Nathalie Pothier <>
Submitted on : Friday, September 4, 2009 - 5:09:38 PM
Last modification on : Thursday, August 6, 2020 - 4:33:09 PM
Long-term archiving on: : Monday, October 15, 2012 - 4:10:46 PM
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Identifiers
- HAL Id : insu-00409832, version 1
- IRD : fdi:010046139
- DOI : 10.5194/bg-6-835-2009
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Citation
Dimitri Gutiérrez, Abdelfettah Sifeddine, David Field, Luc Ortlieb, Gabriel Vargas, et al.. Rapid reorganization in ocean biogeochemistry off Peru towards the end of the Little Ice Age. Biogeosciences, European Geosciences Union, 2009, 6, pp.835-848. ⟨10.5194/bg-6-835-2009⟩. ⟨insu-00409832⟩
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