The major floods in the Amazonas River and tributaries (Western Amazon Basin) during the 1970–2012 period: A focus on the 2012 flood
International audience In this work, the authors analyze the origin of the extreme floods in the Peruvian Amazonas River during the 1970–2012 period, focusing on the recent April 2012 flooding (55 400 m$^3$ s$^{−1}$). Several hydrological variables, such as rainfall, terrestrial water storage, and d...
Published in: | Journal of Hydrometeorology |
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Main Authors: | , , , , , |
Other Authors: | , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2013
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Subjects: | |
Online Access: | https://hal.science/hal-01415396 https://hal.science/hal-01415396/document https://hal.science/hal-01415396/file/%5B15257541%20-%20Journal%20of%20Hydrometeorology%5D%20The%20Major%20Floods%20in%20the%20Amazonas%20River%20and%20Tributaries%20%28Western%20Amazon%20Basin%29%20during%20the%201970%E2%80%932012%20Period%20A%20Focus%20on%20the%202012%20Flood.pdf https://doi.org/10.1175/JHM-D-12-0100.1 |
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ftmuseumnhn:oai:HAL:hal-01415396v1 |
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Open Polar |
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Muséum National d'Histoire Naturelle (MNHM): HAL |
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ftmuseumnhn |
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English |
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[SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] |
spellingShingle |
[SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] Espinoza, Jhan Carlo Ronchail, Josyane Frappart, Frédéric Lavado, Waldo Santini, William Guyot, Jean-Loup The major floods in the Amazonas River and tributaries (Western Amazon Basin) during the 1970–2012 period: A focus on the 2012 flood |
topic_facet |
[SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] |
description |
International audience In this work, the authors analyze the origin of the extreme floods in the Peruvian Amazonas River during the 1970–2012 period, focusing on the recent April 2012 flooding (55 400 m$^3$ s$^{−1}$). Several hydrological variables, such as rainfall, terrestrial water storage, and discharge, point out that the unprecedented 2012 flood is mainly related to an early and abundant wet season over the north of the basin. Thus, the peak of the Marañón River, the northern contributor of the Amazonas, occurred sooner than usual (in April instead of May), coinciding with the peak of the Ucayali River, the southern contributor. This concomitance caused a dramatic flood downstream in the Peruvian Amazonas. These results are compared to the amplitude and timing of the three most severe extreme floods (1970–2011). The analysis of the climatic features related to the most important floods (1986, 1993, 1999, and 2012) suggests that they are characterized by a La Niña event, which originates a geopotential height wave train near the ground, with positive anomalies over the subtropical South and North Pacific and Atlantic and over southeastern South America. These patterns contribute to 1) the origin of an abundant humidity transport flux from the tropical North Atlantic and the Caribbean Sea toward the northwestern Amazon and 2) the maintenance of the monsoon flux over this region. They both favor a strong convergence of humidity in the northern Amazonas basin. Finally, the authors suggest that the intensity of floods is more likely related to an early La Niña event (as observed during the 2011/12 season), early rainfall, and simultaneous peaks of both tributaries of the Amazonas River. |
author2 |
Instituto Geofisico del Peru Instituto Geofísico del Perú Universidad Nacional Agraria La Molina (UNALM) Processus de la variabilité climatique tropicale et impacts (PARVATI) Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN) Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) Université Paris Diderot - Paris 7 (UPD7) Géosciences Environnement Toulouse (GET) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS) Servicio Nacional de Meteorologia e Hidrologia Jiron Cahuide Institut de Recherche pour le Développement (IRD Pérou ) |
format |
Article in Journal/Newspaper |
author |
Espinoza, Jhan Carlo Ronchail, Josyane Frappart, Frédéric Lavado, Waldo Santini, William Guyot, Jean-Loup |
author_facet |
Espinoza, Jhan Carlo Ronchail, Josyane Frappart, Frédéric Lavado, Waldo Santini, William Guyot, Jean-Loup |
author_sort |
Espinoza, Jhan Carlo |
title |
The major floods in the Amazonas River and tributaries (Western Amazon Basin) during the 1970–2012 period: A focus on the 2012 flood |
title_short |
The major floods in the Amazonas River and tributaries (Western Amazon Basin) during the 1970–2012 period: A focus on the 2012 flood |
title_full |
The major floods in the Amazonas River and tributaries (Western Amazon Basin) during the 1970–2012 period: A focus on the 2012 flood |
title_fullStr |
The major floods in the Amazonas River and tributaries (Western Amazon Basin) during the 1970–2012 period: A focus on the 2012 flood |
title_full_unstemmed |
The major floods in the Amazonas River and tributaries (Western Amazon Basin) during the 1970–2012 period: A focus on the 2012 flood |
title_sort |
major floods in the amazonas river and tributaries (western amazon basin) during the 1970–2012 period: a focus on the 2012 flood |
publisher |
HAL CCSD |
publishDate |
2013 |
url |
https://hal.science/hal-01415396 https://hal.science/hal-01415396/document https://hal.science/hal-01415396/file/%5B15257541%20-%20Journal%20of%20Hydrometeorology%5D%20The%20Major%20Floods%20in%20the%20Amazonas%20River%20and%20Tributaries%20%28Western%20Amazon%20Basin%29%20during%20the%201970%E2%80%932012%20Period%20A%20Focus%20on%20the%202012%20Flood.pdf https://doi.org/10.1175/JHM-D-12-0100.1 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
ISSN: 1525-755X EISSN: 1525-7541 Journal of Hydrometeorology https://hal.science/hal-01415396 Journal of Hydrometeorology, 2013, 14 (3), pp.1000-1008. ⟨10.1175/JHM-D-12-0100.1⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1175/JHM-D-12-0100.1 hal-01415396 https://hal.science/hal-01415396 https://hal.science/hal-01415396/document https://hal.science/hal-01415396/file/%5B15257541%20-%20Journal%20of%20Hydrometeorology%5D%20The%20Major%20Floods%20in%20the%20Amazonas%20River%20and%20Tributaries%20%28Western%20Amazon%20Basin%29%20during%20the%201970%E2%80%932012%20Period%20A%20Focus%20on%20the%202012%20Flood.pdf doi:10.1175/JHM-D-12-0100.1 IRD: fdi:010059907 WOS: 000320300600019 |
op_rights |
http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1175/JHM-D-12-0100.1 |
container_title |
Journal of Hydrometeorology |
container_volume |
14 |
container_issue |
3 |
container_start_page |
1000 |
op_container_end_page |
1008 |
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1799485455883829248 |
spelling |
ftmuseumnhn:oai:HAL:hal-01415396v1 2024-05-19T07:45:25+00:00 The major floods in the Amazonas River and tributaries (Western Amazon Basin) during the 1970–2012 period: A focus on the 2012 flood Espinoza, Jhan Carlo Ronchail, Josyane Frappart, Frédéric Lavado, Waldo Santini, William Guyot, Jean-Loup Instituto Geofisico del Peru Instituto Geofísico del Perú Universidad Nacional Agraria La Molina (UNALM) Processus de la variabilité climatique tropicale et impacts (PARVATI) Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN) Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) Université Paris Diderot - Paris 7 (UPD7) Géosciences Environnement Toulouse (GET) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS) Servicio Nacional de Meteorologia e Hidrologia Jiron Cahuide Institut de Recherche pour le Développement (IRD Pérou ) 2013 https://hal.science/hal-01415396 https://hal.science/hal-01415396/document https://hal.science/hal-01415396/file/%5B15257541%20-%20Journal%20of%20Hydrometeorology%5D%20The%20Major%20Floods%20in%20the%20Amazonas%20River%20and%20Tributaries%20%28Western%20Amazon%20Basin%29%20during%20the%201970%E2%80%932012%20Period%20A%20Focus%20on%20the%202012%20Flood.pdf https://doi.org/10.1175/JHM-D-12-0100.1 en eng HAL CCSD American Meteorological Society info:eu-repo/semantics/altIdentifier/doi/10.1175/JHM-D-12-0100.1 hal-01415396 https://hal.science/hal-01415396 https://hal.science/hal-01415396/document https://hal.science/hal-01415396/file/%5B15257541%20-%20Journal%20of%20Hydrometeorology%5D%20The%20Major%20Floods%20in%20the%20Amazonas%20River%20and%20Tributaries%20%28Western%20Amazon%20Basin%29%20during%20the%201970%E2%80%932012%20Period%20A%20Focus%20on%20the%202012%20Flood.pdf doi:10.1175/JHM-D-12-0100.1 IRD: fdi:010059907 WOS: 000320300600019 http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess ISSN: 1525-755X EISSN: 1525-7541 Journal of Hydrometeorology https://hal.science/hal-01415396 Journal of Hydrometeorology, 2013, 14 (3), pp.1000-1008. ⟨10.1175/JHM-D-12-0100.1⟩ [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] info:eu-repo/semantics/article Journal articles 2013 ftmuseumnhn https://doi.org/10.1175/JHM-D-12-0100.1 2024-04-25T00:45:05Z International audience In this work, the authors analyze the origin of the extreme floods in the Peruvian Amazonas River during the 1970–2012 period, focusing on the recent April 2012 flooding (55 400 m$^3$ s$^{−1}$). Several hydrological variables, such as rainfall, terrestrial water storage, and discharge, point out that the unprecedented 2012 flood is mainly related to an early and abundant wet season over the north of the basin. Thus, the peak of the Marañón River, the northern contributor of the Amazonas, occurred sooner than usual (in April instead of May), coinciding with the peak of the Ucayali River, the southern contributor. This concomitance caused a dramatic flood downstream in the Peruvian Amazonas. These results are compared to the amplitude and timing of the three most severe extreme floods (1970–2011). The analysis of the climatic features related to the most important floods (1986, 1993, 1999, and 2012) suggests that they are characterized by a La Niña event, which originates a geopotential height wave train near the ground, with positive anomalies over the subtropical South and North Pacific and Atlantic and over southeastern South America. These patterns contribute to 1) the origin of an abundant humidity transport flux from the tropical North Atlantic and the Caribbean Sea toward the northwestern Amazon and 2) the maintenance of the monsoon flux over this region. They both favor a strong convergence of humidity in the northern Amazonas basin. Finally, the authors suggest that the intensity of floods is more likely related to an early La Niña event (as observed during the 2011/12 season), early rainfall, and simultaneous peaks of both tributaries of the Amazonas River. Article in Journal/Newspaper North Atlantic Muséum National d'Histoire Naturelle (MNHM): HAL Journal of Hydrometeorology 14 3 1000 1008 |