Articles | Volume 27, issue 17
https://doi.org/10.5194/hess-27-3191-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/hess-27-3191-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
El Niño–Southern Oscillation (ENSO)-driven hypersedimentation in the Poechos Reservoir, northern Peru
Anthony Foucher
CORRESPONDING AUTHOR
Laboratoire des Sciences du Climat et de l'Environnement (LSCE-IPSL), UMR 8212 (CEA-CNRS-UVSQ), Université Paris-Saclay, 91191 Gif-sur-Yvette
CEDEX, France
Sergio Morera
Instituto Geofísico del Perú, Calle Badajoz, 169, Lima, Peru
Programa de Maestría en Recursos Hídricos, Universidad Nacional Agraria La Molina, 15024, Lima, Peru
Facultad de Ingeniería y Gestión ambiental, Universidad Nacional Autónoma de Huanta, 05121, Huanta, Ayacucho, Peru
Michael Sanchez
Instituto Geofísico del Perú, Calle Badajoz, 169, Lima, Peru
Jhon Orrillo
Instituto Geofísico del Perú, Calle Badajoz, 169, Lima, Peru
Olivier Evrard
Laboratoire des Sciences du Climat et de l'Environnement (LSCE-IPSL), UMR 8212 (CEA-CNRS-UVSQ), Université Paris-Saclay, 91191 Gif-sur-Yvette
CEDEX, France
Related authors
Paul Hazet, Anthony Foucher, Olivier Evrard, and Benjamin Quesada
EGUsphere, https://doi.org/10.5194/egusphere-2025-2127, https://doi.org/10.5194/egusphere-2025-2127, 2025
Short summary
Short summary
Using a sediment core and hydroclimatic data, this study assesses how past environmental changes contribute to the growing vulnerability of hydropower in southern France.
Virginie Sellier, Oldrich Navratil, John Patrick Laceby, Cédric Legout, Anthony Foucher, Michel Allenbach, Irène Lefèvre, and Olivier Evrard
SOIL, 7, 743–766, https://doi.org/10.5194/soil-7-743-2021, https://doi.org/10.5194/soil-7-743-2021, 2021
Short summary
Short summary
Open-cast mining increases soil erosion and transfer of sediment in river systems. Providing a methodology to better understand the sediment dynamic of these catchments is essential to manage this pollution. In this study, different tracers such as elemental geochemistry or colour properties were tested to trace and quantify the mining source contributions to the sediment inputs in the Thio River catchment, one of the first areas exploited for nickel mining in New Caledonia (i.e. since 1880).
Anthony Foucher, Pierre-Alexis Chaboche, Pierre Sabatier, and Olivier Evrard
Earth Syst. Sci. Data, 13, 4951–4966, https://doi.org/10.5194/essd-13-4951-2021, https://doi.org/10.5194/essd-13-4951-2021, 2021
Short summary
Short summary
Sediment archives provide a powerful and unique tool for reconstructing the trajectory and the resilience of terrestrial and aquatic ecosystems facing major environmental changes. Establishing an age depth–model is the first prerequisite of any paleo-investigation. This study synthesizes the distribution of two radionuclides classically used to this aim, providing a worldwide reference to help the scientific community reach a consensus for dating recent sedimentary archives.
Paul Hazet, Anthony Foucher, Olivier Evrard, and Benjamin Quesada
EGUsphere, https://doi.org/10.5194/egusphere-2025-2127, https://doi.org/10.5194/egusphere-2025-2127, 2025
Short summary
Short summary
Using a sediment core and hydroclimatic data, this study assesses how past environmental changes contribute to the growing vulnerability of hydropower in southern France.
Gerald Dicen, Floriane Guillevic, Surya Gupta, Pierre-Alexis Chaboche, Katrin Meusburger, Pierre Sabatier, Olivier Evrard, and Christine Alewell
Earth Syst. Sci. Data, 17, 1529–1549, https://doi.org/10.5194/essd-17-1529-2025, https://doi.org/10.5194/essd-17-1529-2025, 2025
Short summary
Short summary
Fallout radionuclides (FRNs) such as 137Cs and 239+240Pu are considered to be critical tools in various environmental research. Here, we compiled reference soil data on these FRNs from the literature to build a comprehensive database. Using this database, we determined the distribution and sources of 137Cs and 239+240Pu. We also demonstrated how the database can be used to identify the environmental factors that influence their distribution using a machine learning algorithm.
Sally Rangecroft, Caroline Clason, Rosa Maria Dextre, Isabel Richter, Claire Kelly, Cecilia Turin, Claudia V. Grados-Bueno, Beatriz Fuentealba, Mirtha Camacho Hernandez, Sergio Morera Julca, John Martin, and John Adam Guy
Geosci. Commun., 7, 145–150, https://doi.org/10.5194/gc-7-145-2024, https://doi.org/10.5194/gc-7-145-2024, 2024
Short summary
Short summary
The Nuestro Rio project (2021–22) developed a digital app to collect local perspectives on water quality in the Santa River basin, Peru. Here we share four key lessons from the project, discussing the importance and challenges of engaging local participants, the use of technology for data collection, and the need to integrate local perspectives with scientific observations. This article provides insights for researchers considering developing similar technological tools for environmental issues.
Thomas Chalaux-Clergue, Rémi Bizeul, Pedro V. G. Batista, Núria Martínez-Carreras, J. Patrick Laceby, and Olivier Evrard
SOIL, 10, 109–138, https://doi.org/10.5194/soil-10-109-2024, https://doi.org/10.5194/soil-10-109-2024, 2024
Short summary
Short summary
Sediment source fingerprinting is a relevant tool to support soil conservation and watershed management in the context of accelerated soil erosion. To quantify sediment source contribution, it requires the selection of relevant tracers. We compared the three-step method and the consensus method and found very contrasted trends. The divergences between virtual mixtures and sample prediction ranges highlight that virtual mixture statistics are not directly transferable to actual samples.
Olivier Evrard, Thomas Chalaux-Clergue, Pierre-Alexis Chaboche, Yoshifumi Wakiyama, and Yves Thiry
SOIL, 9, 479–497, https://doi.org/10.5194/soil-9-479-2023, https://doi.org/10.5194/soil-9-479-2023, 2023
Short summary
Short summary
Twelve years after the nuclear accident that occurred in Fukushima in March 2011, radioactive contamination remains a major concern in north-eastern Japan. The Japanese authorities completed an unprecedented decontamination programme. The central objective was to not expose local inhabitants to excessive radioactive doses. At the onset of the full reopening of the Difficult-to-Return Zone in 2023, the current review provides an update of a previous synthesis published in 2019.
Marie Dumont, Simon Gascoin, Marion Réveillet, Didier Voisin, François Tuzet, Laurent Arnaud, Mylène Bonnefoy, Montse Bacardit Peñarroya, Carlo Carmagnola, Alexandre Deguine, Aurélie Diacre, Lukas Dürr, Olivier Evrard, Firmin Fontaine, Amaury Frankl, Mathieu Fructus, Laure Gandois, Isabelle Gouttevin, Abdelfateh Gherab, Pascal Hagenmuller, Sophia Hansson, Hervé Herbin, Béatrice Josse, Bruno Jourdain, Irene Lefevre, Gaël Le Roux, Quentin Libois, Lucie Liger, Samuel Morin, Denis Petitprez, Alvaro Robledano, Martin Schneebeli, Pascal Salze, Delphine Six, Emmanuel Thibert, Jürg Trachsel, Matthieu Vernay, Léo Viallon-Galinier, and Céline Voiron
Earth Syst. Sci. Data, 15, 3075–3094, https://doi.org/10.5194/essd-15-3075-2023, https://doi.org/10.5194/essd-15-3075-2023, 2023
Short summary
Short summary
Saharan dust outbreaks have profound effects on ecosystems, climate, health, and the cryosphere, but the spatial deposition pattern of Saharan dust is poorly known. Following the extreme dust deposition event of February 2021 across Europe, a citizen science campaign was launched to sample dust on snow over the Pyrenees and the European Alps. This campaign triggered wide interest and over 100 samples. The samples revealed the high variability of the dust properties within a single event.
Laurie Boithias, Olivier Ribolzi, Emma Rochelle-Newall, Chanthanousone Thammahacksa, Paty Nakhle, Bounsamay Soulileuth, Anne Pando-Bahuon, Keooudone Latsachack, Norbert Silvera, Phabvilay Sounyafong, Khampaseuth Xayyathip, Rosalie Zimmermann, Sayaphet Rattanavong, Priscia Oliva, Thomas Pommier, Olivier Evrard, Sylvain Huon, Jean Causse, Thierry Henry-des-Tureaux, Oloth Sengtaheuanghoung, Nivong Sipaseuth, and Alain Pierret
Earth Syst. Sci. Data, 14, 2883–2894, https://doi.org/10.5194/essd-14-2883-2022, https://doi.org/10.5194/essd-14-2883-2022, 2022
Short summary
Short summary
Fecal pathogens in surface waters may threaten human health, especially in developing countries. The Escherichia coli (E. coli) database is organized in three datasets and includes 1602 records from 31 sampling stations located within the Mekong River basin in Lao PDR. Data have been used to identify the drivers of E. coli dissemination across tropical catchments, including during floods. Data may be further used to interpret new variables or to map the health risk posed by fecal pathogens.
Virginie Sellier, Oldrich Navratil, John Patrick Laceby, Cédric Legout, Anthony Foucher, Michel Allenbach, Irène Lefèvre, and Olivier Evrard
SOIL, 7, 743–766, https://doi.org/10.5194/soil-7-743-2021, https://doi.org/10.5194/soil-7-743-2021, 2021
Short summary
Short summary
Open-cast mining increases soil erosion and transfer of sediment in river systems. Providing a methodology to better understand the sediment dynamic of these catchments is essential to manage this pollution. In this study, different tracers such as elemental geochemistry or colour properties were tested to trace and quantify the mining source contributions to the sediment inputs in the Thio River catchment, one of the first areas exploited for nickel mining in New Caledonia (i.e. since 1880).
Anthony Foucher, Pierre-Alexis Chaboche, Pierre Sabatier, and Olivier Evrard
Earth Syst. Sci. Data, 13, 4951–4966, https://doi.org/10.5194/essd-13-4951-2021, https://doi.org/10.5194/essd-13-4951-2021, 2021
Short summary
Short summary
Sediment archives provide a powerful and unique tool for reconstructing the trajectory and the resilience of terrestrial and aquatic ecosystems facing major environmental changes. Establishing an age depth–model is the first prerequisite of any paleo-investigation. This study synthesizes the distribution of two radionuclides classically used to this aim, providing a worldwide reference to help the scientific community reach a consensus for dating recent sedimentary archives.
Olivier Evrard, Caroline Chartin, J. Patrick Laceby, Yuichi Onda, Yoshifumi Wakiyama, Atsushi Nakao, Olivier Cerdan, Hugo Lepage, Hugo Jaegler, Rosalie Vandromme, Irène Lefèvre, and Philippe Bonté
Earth Syst. Sci. Data, 13, 2555–2560, https://doi.org/10.5194/essd-13-2555-2021, https://doi.org/10.5194/essd-13-2555-2021, 2021
Short summary
Short summary
This dataset provides an original compilation of radioactive dose rates and artificial radionuclide activities in sediment deposited after floods in the rivers draining the main radioactive pollution plume in Fukushuma, Japan, between November
2011 and November 2020. In total, 782 sediment samples collected from 27 to 71 locations during 16 fieldwork campaigns were analysed. This provides a unique post-accidental dataset to better understand the environmental fate of radionuclides.
Cited articles
Adongo, T. A., Kugbe, J. X., and Gbedzi, V. D.: International Journal of
Science and Technology Siltation of the Reservoir of Vea Irrigation Dam in
the Bongo District of the Upper East Region, Ghana, 12, https://www.academia.edu/25194660/Siltation_of_the_Reservoir_of_Vea_Irrigation_Dam_in_the_Bongo_District_of_the_Upper_East_Region_Ghana
(last access: 28 August 2023), 2014.
ANA: Plan de Gestión de los Recursos Hídricos de la Cuenca
Chira-Piura, Lima, PE, http://www.ana.gob.pe/publicaciones/plan-de-gestion-de-los-recursos-hidricos-cuencas-chira-piura
(last access: 24 August 2023), 2015.
Arias, P. A., Garreaud, R., Poveda, G., Espinoza, J. C., Molina-Carpio, J.,
Masiokas, M., Viale, M., Scaff, L., and van Oevelen, P. J.: Hydroclimate of
the Andes Part II: Hydroclimate Variability and Sub-Continental Patterns,
Front. Earth Sci., 8, 505467, https://doi.org/10.3389/FEART.2020.505467, 2021.
Baig, M. H. A., Zhang, L., Shuai, T., and Tong, Q.: Derivation of a tasselled
cap transformation based on Landsat 8 at-satellite reflectance, Remote Sens.
Lett., 5, 423–431, https://doi.org/10.1080/2150704X.2014.915434, 2014.
Barboza, E., Salazar, W., Gálvez-Paucar, D., Valqui-Valqui, L., Saravia,
D., Gonzales, J., Aldana, W., Vásquez, H. V., and Arbizu, C. I.: Cover
and Land Use Changes in the Dry Forest of Tumbes (Peru) Using Sentinel-2 and
Google Earth Engine Data, in: IECF 2022, p. 2, MDPI, Basel Switzerland, https://www.mdpi.com/2673-4931/22/1/2
(last access: 24 August 2023),
2022.
Barros, V. R., Field, C. B., Dokken, D. J., Mastrandrea, M. D., Mach, K. J.,
Bilir, T. E., Chatterjee, M., Ebi, K. L., Estrada, Y. O., Genova, R. C.,
Girma, B., Kissel, E. S., Levy, A. N., MacCracken, S., Mastrandrea, P. R.,
and White, L. L.: Climate change 2014 impacts, adaptation, and vulnerability
Part B: Regional aspects: Working group ii contribution to the fifth
assessment report of the intergovernmental panel on climate change, Clim.
Chang. 2014 Impacts, Adapt. Vulnerability Part B Reg. Asp. Work. Gr. II
Contrib. to Fifth Assess. Rep. Intergov. Panel Clim. Chang., 1–1820,
https://doi.org/10.1017/CBO9781107415386, 2014.
Breiman, L. and Cutler, A.: Breiman and Cutler's random forests for
classification and regression, Packag. “randomForest”, https://cran.r-project.org/web/packages/randomForest/index.html
(last access: 24 August 2023),
2012.
Caramanica, A., Mesia, L. H., Morales, C. R., Huckleberry, G., Luis Jaime
Castillo, B., and Quilter, J.: El Niño resilience farming on the north
coast of Peru, P. Natl. Acad. Sci. USA, 117, 24127–24137,
https://doi.org/10.1073/pnas.2006519117, 2020.
Chaboche, P.-A., Saby, N. P. A., Laceby, J. P., Minella, J. P. G., Tiecher,
T., Ramon, R., Tassano, M., Cabral, P., Cabrera, M., da Silva, Y. J. A. B.,
Lefevre, I., and Evrard, O.: Mapping the spatial distribution of global 137Cs
fallout in soils of South America as a baseline for Earth Science studies,
Earth-Sci. Rev., 214, 103542,
https://doi.org/10.1016/j.earscirev.2021.103542, 2021.
Croudace, I. W. and Rothwell, R. G.: Micro-XRF Studies of Sediment Cores,
edited by: I. W. Croudace and R. G. Rothwell, Springer Netherlands,
Dordrecht, https://doi.org/10.1007/978-94-017-9849-5, 2015.
Custodio, M., Espinoza, C., Orellana, E., Chanamé, F., Fow, A., and
Peñaloza, R.: Assessment of toxic metal contamination, distribution and
risk in the sediments from lagoons used for fish farming in the central
region of Peru, Toxicol. Reports, 9, 1603–1613,
https://doi.org/10.1016/j.toxrep.2022.07.016, 2022.
de Campos Jr., E. O., Araújo, D. F., Souto, H. N., Campos, C. F., and Barbosa, P. B.: Contamination and health risks assessment in a dam in the southeast region of Brazil using ecotoxicological methods, J. Toxicol. Env. Heal. A, 83, 404–411, https://doi.org/10.1080/15287394.2020.1767250, 2020.
Evrard, O., Chaboche, P.-A., Ramon, R., Foucher, A., and Laceby, J. P.: A
global review of sediment source fingerprinting research incorporating
fallout radiocesium (137Cs), Geomorphology, 362, 107103,
https://doi.org/10.1016/j.geomorph.2020.107103, 2020.
Foucher, A., Evrard, O., Cerdan, O., Chabert, C., Lecompte, F., Lefèvre,
I., Vandromme, R., and Salvador-Blanes, S.: A quick and low-cost technique to
identify layers associated with heavy rainfall in sediment archives during
the Anthropocene, Sedimentology, 67, 486–501, https://doi.org/10.1111/sed.12650,
2020.
Foucher, A., Chaboche, P.-A., Sabatier, P., and Evrard, O.: A worldwide meta-analysis (1977–2020) of sediment core dating using fallout radionuclides including 137Cs and 210Pbxs, Earth Syst. Sci. Data, 13, 4951–4966, https://doi.org/10.5194/essd-13-4951-2021, 2021.
Foucher, A., Tassano, M., Chaboche, P.-A., Chalar, G., Cabrera, M.,
Gonzalez, J., Cabral, P., Simon, A.-C., Agelou, M., Ramon, R., Tiecher, T.,
and Evrard, O.: Inexorable land degradation due to agriculture expansion in
South American Pampa, Nat. Sustain., 6, 662–670, https://doi.org/10.1038/s41893-023-01074-z, 2023a.
Foucher, A., Morera, S., Sanchez, M., Orrillo, J., and Evrard, O.: Radionuclide, particle size and elemental geochemistry analysis results of the Poechos sediment core, northern Peru, Zenodo [data set], https://doi.org/10.5281/zenodo.8282995, 2023b.
Geng, T., Cai, W., Wu, L., Santoso, A., Wang, G., Jing, Z., Gan, B., Yang,
Y., Li, S., Wang, S., Chen, Z., and McPhaden, M. J.: Emergence of changing
Central-Pacific and Eastern-Pacific El Niño-Southern Oscillation in a
warming climate, Nat. Commun., 13, 6616, https://doi.org/10.1038/s41467-022-33930-5,
2022.
Hendy, I. L., Napier, T. J., and Schimmelmann, A.: From extreme rainfall to
drought: 250 years of annually resolved sediment deposition in Santa Barbara
Basin, California, Quatern. Int., 387, 3–12, https://doi.org/10.1016/j.quaint.2015.01.026,
2015.
Kotov, S. and Paelike, H.: QAnalySeries – a cross-platform time series
tuning and analysis tool,
https://agu.confex.com/agu/fm18/meetingapp.cgi/Paper/349843 (last access: 24 August 2023), 2018.
Lizaga, I., Latorre, B., Gaspar, L., and Navas, A.: FingerPro: an R Package
for Tracking the Provenance of Sediment, Water Resour. Manag., 34,
3879–3894, https://doi.org/10.1007/s11269-020-02650-0, 2020.
Marin, A. Y. E.: Cuantificación y clasificacion de las tasas de sedimentación en el reservorio Poechos, Piura, 2020.
McEntire, D. A. and Fuller, C.: The need for a holistic theoretical
approach: an examination from the El Niño disasters in Peru, Disaster
Prev. Manag. An Int. J., 11, 128–140, https://doi.org/10.1108/09653560210426812,
2002.
MINAM: Informe final del proyecto: Análisis de las dinámicas de
cambio de cobertura de la tierra en la comunidad andina, https://www.minam.gob.pe/ordenamientoterritorial/wp- content/uploads/sites/18/2013/10/Informe-final-de-Proyecto-
Dinamica-de-los-Cambios-de-la-Tierra-CAN.pdf
(last access: 24 August 2023), 2014.
MINAM: Identificación de condiciones de riesgos de desastres y
vulnerabilidad al cambio climático en la Región de Piura, https://sigrid.cenepred.gob.pe/sigridv3/documento/9285 (last access: 24 August 2023), 2016.
Molina, A., Govers, G., Poesen, J., Van Hemelryck, H., De Bièvre, B., and
Vanacker, V.: Environmental factors controlling spatial variation in
sediment yield in a central Andean mountain area, Geomorphology, 98,
176–186, https://doi.org/10.1016/j.geomorph.2006.12.025, 2008.
Morera, S. B., Condom, T., Crave, A., Steer, P., and Guyot, J. L.: The impact
of extreme El Niño events on modern sediment transport along the western
Peruvian Andes (1968–2012), Sci. Rep., 7, 1–14,
https://doi.org/10.1038/s41598-017-12220-x, 2017.
Morocho Calle, F.: Sedimentación del reservorio de Poechos y recuperación de volumen de agua de regulación para sistema Chira-Piura, https://repositorio.ana.gob.pe/handle/20.500.12543/743 (last access: 24 August 2023), 2004.
Oñate-Valdivieso, F., and Bosque Sendra, J.: Application of GIS and
remote sensing techniques in generation of land use scenarios for
hydrological modeling, J. Hydrol., 395, 256–263,
https://doi.org/10.1016/j.jhydrol.2010.10.033, 2010.
OPS: Peru: Fenomeno El Nino, 1997–1998, Organizacion Panamericana de la Salud, Washigton D.C., https://iris.paho.org/handle/10665.2/46050 (last access: 25 August 2023), ISBN 92 75 32318 6, 2000.
Otivo, J.: Memoria descriptiva: Mapa de ocupación del terriotrio y uso
actual del suelo, https://fr. scribd.com/document/385350242/MAPA-OCUPACION-DEL- TERRITORIO-Y-USO-ACTUAL-DEL-SUELO-PIURA
(last access: 24 August 2024), 2010.
Otivo, M. J., Otivo, B. J. and Llanos, A. M.: Análisis de la cobertura vegetal y la degradación del bosque tropical estacionalmente seco en el Distrito de Lancones, Sullana, Piura, https://repositoriodigital.minam.gob.pe/handle/123456789/503 (last access: 24 August 2023), 2014.
Paillard, D., Labeyrie, L., Yiou, P., Paillard, D., Labeyrie, L., Yiou, P.,
and Program, M.: Macintosh Program performs time-series analysis,
Eos T. Am. Geophys. Un., 77,
379–379, 1996.
Paredes-Beltran, B., Sordo-Ward, A., and Garrote, L.: Dataset of Georeferenced Dams in South America (DDSA), Earth Syst. Sci. Data, 13, 213–229, https://doi.org/10.5194/essd-13-213-2021, 2021.
Rau, P., Bourrel, L., Labat, D., Melo, P., Dewitte, B., Frappart, F.,
Lavado, W., and Felipe, O.: Regionalization of rainfall over the Peruvian
Pacific slope and coast, Int. J. Climatol., 37, 143–158,
https://doi.org/10.1002/joc.4693, 2017.
Rosas, M. A., Vanacker, V., Viveen, W., Gutierrez, R. R., and Huggel, C.: The
potential impact of climate variability on siltation of Andean reservoirs,
J. Hydrol., 581, 124396, https://doi.org/10.1016/j.jhydrol.2019.124396, 2020.
Rosas, M. A., Viveen, W., and Vanacker, V.: Spatial variation in specific
sediment yield along the Peruvian western Andes, CATENA, 220, 106699,
https://doi.org/10.1016/j.catena.2022.106699, 2023.
Rouse, J. W., Hass, R. H., Schell, J. A., and Deering, D. W.: Monitoring
vegetation systems in the Great Plains with ERTS, Nasa ERTS Symp., https://ntrs.nasa.gov/citations/19740022614
(last access: 24 August 2023), 1973.
Schneider, C. A., Rasband, W. S., and Eliceiri, K. W.: NIH Image to ImageJ:
25 years of image analysis, Nat. Methods, 9, 671–675,
https://doi.org/10.1038/nmeth.2089, 2012.
Song, X.-P., Hansen, M. C., Potapov, P., Adusei, B., Pickering, J., Adami,
M., Lima, A., Zalles, V., Stehman, S. V., Di Bella, C. M., Conde, M. C.,
Copati, E. J., Fernandes, L. B., Hernandez-Serna, A., Jantz, S. M., Pickens,
A. H., Turubanova, S., and Tyukavina, A.: Massive soybean expansion in South
America since 2000 and implications for conservation, Nat. Sustain., 4,
784–792, https://doi.org/10.1038/s41893-021-00729-z, 2021.
Strozzi, T., Klimeš, J., Frey, H., Caduff, R., Huggel, C.,
Wegmüller, U., and Rapre, A. C.: Satellite SAR interferometry for the
improved assessment of the state of activity of landslides: A case study
from the Cordilleras of Peru, Remote Sens. Environ., 217, 111–125,
https://doi.org/10.1016/j.rse.2018.08.014, 2018.
Takahashi, K.: The atmospheric circulation associated with extreme rainfall events in Piura, Peru, during the 1997–1998 and 2002 El Niño events, Ann. Geophys., 22, 3917–3926, https://doi.org/10.5194/angeo-22-3917-2004, 2004.
Takahashi, K. and Dewitte, B.: Strong and moderate nonlinear El Niño
regimes, Clim. Dynam., 46, 1627–1645, https://doi.org/10.1007/s00382-015-2665-3,
2016.
Takahashi, K., Montecinos, A., Goubanova, K., and Dewitte, B.: ENSO regimes:
Reinterpreting the canonical and Modoki El Nio, Geophys. Res. Lett., 38, L10704,
https://doi.org/10.1029/2011GL047364, 2011.
Tote, C., Govers, G., Van Kerckhoven, S., Filiberto, I., Verstraeten, G., and
Eerens, H.: Effect of ENSO events on sediment production in a large coastal
basin in northern Peru, Earth Surf. Proc. Land., 36, 1776–1788,
https://doi.org/10.1002/esp.2200, 2011.
Vanacker, V., Molina, A., Govers, G., Poesen, J., and Deckers, J.: Spatial
variation of suspended sediment concentrations in a tropical Andean river
system: The Paute River, southern Ecuador, Geomorphology, 87, 53–67,
https://doi.org/10.1016/j.geomorph.2006.06.042, 2007.
Vanacker, V., von Blanckenburg, F., Govers, G., Molina, A., Campforts, B.,
and Kubik, P. W.: Transient river response, captured by channel steepness
and its concavity, Geomorphology, 228, 234–243,
https://doi.org/10.1016/j.geomorph.2014.09.013, 2015.
Vanacker, V., Molina, A., Rosas, M. A., Bonnesoeur, V., Román-Dañobeytia, F., Ochoa-Tocachi, B. F., and Buytaert, W.: The effect of natural infrastructure on water erosion mitigation in the Andes, SOIL, 8, 133–147, https://doi.org/10.5194/soil-8-133-2022, 2022.
Velez, M. I., Salgado, J., Brenner, M., Hooghiemstra, H., Escobar, J., Boom,
A., Bird, B., Curtis, J. H., Temoltzin-Loranca, Y., Patiño, L. F.,
Gonzalez-Arango, C., Metcalfe, S. E., Simpson, G. L., and Velasquez, C.:
Novel responses of diatoms in neotropical mountain lakes to indigenous and
post-European occupation, Anthropocene, 34, 100294,
https://doi.org/10.1016/j.ancene.2021.100294, 2021.
Vílchez, M. S., Núñez, S., and Valenzuela, G.: Estudio
geoambiental de la cuenca del río Chira-Catamayo, Minero y Metalúrgico – INGEMMET,
https://repositorio.ingemmet.gob.pe/handle/20.500.12544/257 (last access: 24 August 2023),
2006.
Wells, L. E.: Holocene history of the El Niño phenomenon as recorded in
flood sediments of northern coastal Peru, Geology, 18, 1134,
https://doi.org/10.1130/0091-7613(1990)018<1134:HHOTEN>2.3.CO;2,
1990.
Winkler, K., Fuchs, R., Rounsevell, M., and Herold, M.: Global land use
changes are four times greater than previously estimated, Nat. Commun., 121, 12, 1–10, https://doi.org/10.1038/s41467-021-22702-2, 2021.
Woodman, R.: Modelo Estadístico de Pronóstico de las
Precipitaciones en la Costa Norte del Perú, Modelo estadístico de pronóstico de las precipitaciones en la costa norte del Perú, El Fenómeno del Niño, Investigación para una prognosis, 1er encuentro de Universidades del Pacífico Sur: Memoria, 93–108, 1999.
Zalles, V., Hansen, M. C., Potapov, P. V., Parker, D., Stehman, S. V., Pickens, A. H., Parente, L. L., Ferreira, L. G., Song, X.-P., Hernandez-Serna, A., and Kommareddy, I.: Rapid expansion of human impact on natural land in South America since 1985, Sci. Adv., 7, eabg1620, https://doi.org/10.1126/sciadv.abg1620, 2021.
Short summary
The current research investigated, as a representative study case, the sediment accumulated in the Poechos Reservoir (located on the west coast of northern Peru) for retrospectively reconstructing the impact on sediment dynamics (1978–2019) of extreme phases of the El Niño–Southern Oscillation, land cover changes after humid periods and agricultural expansion along the riverine system.
The current research investigated, as a representative study case, the sediment accumulated in...