160 glacial lake outburst floods (GLOFs) across the Tropical Andes since the Little Ice Age

Adam Emmer; Joanne L. Wood; Simon J. Cook; Stephan Harrison; Ryan Wilson; Alejandro Diaz-Moreno; John M. Reynolds; Juan C. Torres; Christian Yarleque; Martin Mergili; Harrinson W. Jara; Georgie Bennett; Adriana Caballero; Neil F. Glasser; Enver Melgarejo; Christian Riveros; Sarah Shannon; Efrain Turpo; Tito Tinoco; Lucas Torres; David Garay; Hilbert Villafane; Henrry Garrido; Carlos Martinez; Nebenka Apaza; Julia Araujo; Carlos Poma

doi:10.1016/j.gloplacha.2021.103722

160 glacial lake outburst floods (GLOFs) across the Tropical Andes since the Little Ice Age

Adam Emmer^*, Joanne L. Wood, Simon J. Cook, Stephan Harrison, Ryan Wilson, Alejandro Diaz-Moreno, John M. Reynolds, Juan C. Torres, Christian Yarleque, Martin Mergili, Harrinson W. Jara, Georgie Bennett, Adriana Caballero, Neil F. Glasser, Enver Melgarejo, Christian Riveros, Sarah Shannon, Efrain Turpo, Tito Tinoco, Lucas TorresDavid Garay, Hilbert Villafane, Henrry Garrido, Carlos Martinez, Nebenka Apaza, Julia Araujo, Carlos Poma

^*Corresponding author for this work

Research output: Contribution to journal › Article (Academic Journal) › peer-review

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Abstract

Assessing the extent to which glacial lake outburst floods (GLOFs) are increasing in frequency in modern times and whether their incidence is driven by anthropogenic climate change requires historical context. However, progress on this issue is hampered by incomplete GLOF inventories, especially in remote mountain regions. Here, we exploit high-resolution, multi-temporal satellite and aerial imagery, and documentary data to identify GLOF events across the glacierized Cordilleras of Peru and Bolivia, using a set of diagnostic geomorphic features. A total of 160 GLOFs from 151 individual sites are characterised and analysed, tripling the number of previously reported events. We provide statistics on location, magnitude, timing and characteristics of these events with implications for regional GLOF hazard identification and assessment. Furthermore, we describe several cases in detail and document a wide range of process chains associated with Andean GLOFs.

Original language	English
Article number	103722
Journal	Global and Planetary Change
Volume	208
DOIs	https://doi.org/10.1016/j.gloplacha.2021.103722
Publication status	Published - Jan 2022

Bibliographical note

Funding Information:
We would like to thank three anonymous reviewers for their valuable and helpful comments and suggestions. This work was supported by RCUK-CONICYT ( Research Council UK and National Commission for Scientific Research and Technology) Glacial Lakes of Peru (GLOP) project. AE and MM acknowledge the financial support by the University of Graz.

Publisher Copyright:
© 2021 The Authors

Keywords

Andes
Bolivia
Glacial lake outburst floods
GLOF
Peru

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Emmer, A., Wood, J. L., Cook, S. J., Harrison, S., Wilson, R., Diaz-Moreno, A., Reynolds, J. M., Torres, J. C., Yarleque, C., Mergili, M., Jara, H. W., Bennett, G., Caballero, A., Glasser, N. F., Melgarejo, E., Riveros, C., Shannon, S., Turpo, E., Tinoco, T., ... Poma, C. (2022). 160 glacial lake outburst floods (GLOFs) across the Tropical Andes since the Little Ice Age. Global and Planetary Change, 208, [103722]. https://doi.org/10.1016/j.gloplacha.2021.103722

@article{6190e0fe1dfd407f9dcd3d2429da4ae6,

title = "160 glacial lake outburst floods (GLOFs) across the Tropical Andes since the Little Ice Age",

abstract = "Assessing the extent to which glacial lake outburst floods (GLOFs) are increasing in frequency in modern times and whether their incidence is driven by anthropogenic climate change requires historical context. However, progress on this issue is hampered by incomplete GLOF inventories, especially in remote mountain regions. Here, we exploit high-resolution, multi-temporal satellite and aerial imagery, and documentary data to identify GLOF events across the glacierized Cordilleras of Peru and Bolivia, using a set of diagnostic geomorphic features. A total of 160 GLOFs from 151 individual sites are characterised and analysed, tripling the number of previously reported events. We provide statistics on location, magnitude, timing and characteristics of these events with implications for regional GLOF hazard identification and assessment. Furthermore, we describe several cases in detail and document a wide range of process chains associated with Andean GLOFs.",

keywords = "Andes, Bolivia, Glacial lake outburst floods, GLOF, Peru",

author = "Adam Emmer and Wood, {Joanne L.} and Cook, {Simon J.} and Stephan Harrison and Ryan Wilson and Alejandro Diaz-Moreno and Reynolds, {John M.} and Torres, {Juan C.} and Christian Yarleque and Martin Mergili and Jara, {Harrinson W.} and Georgie Bennett and Adriana Caballero and Glasser, {Neil F.} and Enver Melgarejo and Christian Riveros and Sarah Shannon and Efrain Turpo and Tito Tinoco and Lucas Torres and David Garay and Hilbert Villafane and Henrry Garrido and Carlos Martinez and Nebenka Apaza and Julia Araujo and Carlos Poma",

note = "Funding Information: We would like to thank three anonymous reviewers for their valuable and helpful comments and suggestions. This work was supported by RCUK-CONICYT ( Research Council UK and National Commission for Scientific Research and Technology) Glacial Lakes of Peru (GLOP) project. AE and MM acknowledge the financial support by the University of Graz. Publisher Copyright: {\textcopyright} 2021 The Authors",

year = "2022",

month = jan,

doi = "10.1016/j.gloplacha.2021.103722",

language = "English",

volume = "208",

journal = "Global and Planetary Change",

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Emmer, A, Wood, JL, Cook, SJ, Harrison, S, Wilson, R, Diaz-Moreno, A, Reynolds, JM, Torres, JC, Yarleque, C, Mergili, M, Jara, HW, Bennett, G, Caballero, A, Glasser, NF, Melgarejo, E, Riveros, C, Shannon, S, Turpo, E, Tinoco, T, Torres, L, Garay, D, Villafane, H, Garrido, H, Martinez, C, Apaza, N, Araujo, J & Poma, C 2022, '160 glacial lake outburst floods (GLOFs) across the Tropical Andes since the Little Ice Age', Global and Planetary Change, vol. 208, 103722. https://doi.org/10.1016/j.gloplacha.2021.103722

TY - JOUR

T1 - 160 glacial lake outburst floods (GLOFs) across the Tropical Andes since the Little Ice Age

AU - Emmer, Adam

AU - Wood, Joanne L.

AU - Cook, Simon J.

AU - Harrison, Stephan

AU - Wilson, Ryan

AU - Diaz-Moreno, Alejandro

AU - Reynolds, John M.

AU - Torres, Juan C.

AU - Yarleque, Christian

AU - Mergili, Martin

AU - Jara, Harrinson W.

AU - Bennett, Georgie

AU - Caballero, Adriana

AU - Glasser, Neil F.

AU - Melgarejo, Enver

AU - Riveros, Christian

AU - Shannon, Sarah

AU - Turpo, Efrain

AU - Tinoco, Tito

AU - Torres, Lucas

AU - Garay, David

AU - Villafane, Hilbert

AU - Garrido, Henrry

AU - Martinez, Carlos

AU - Apaza, Nebenka

AU - Araujo, Julia

AU - Poma, Carlos

N1 - Funding Information: We would like to thank three anonymous reviewers for their valuable and helpful comments and suggestions. This work was supported by RCUK-CONICYT ( Research Council UK and National Commission for Scientific Research and Technology) Glacial Lakes of Peru (GLOP) project. AE and MM acknowledge the financial support by the University of Graz. Publisher Copyright: © 2021 The Authors

PY - 2022/1

Y1 - 2022/1

N2 - Assessing the extent to which glacial lake outburst floods (GLOFs) are increasing in frequency in modern times and whether their incidence is driven by anthropogenic climate change requires historical context. However, progress on this issue is hampered by incomplete GLOF inventories, especially in remote mountain regions. Here, we exploit high-resolution, multi-temporal satellite and aerial imagery, and documentary data to identify GLOF events across the glacierized Cordilleras of Peru and Bolivia, using a set of diagnostic geomorphic features. A total of 160 GLOFs from 151 individual sites are characterised and analysed, tripling the number of previously reported events. We provide statistics on location, magnitude, timing and characteristics of these events with implications for regional GLOF hazard identification and assessment. Furthermore, we describe several cases in detail and document a wide range of process chains associated with Andean GLOFs.

AB - Assessing the extent to which glacial lake outburst floods (GLOFs) are increasing in frequency in modern times and whether their incidence is driven by anthropogenic climate change requires historical context. However, progress on this issue is hampered by incomplete GLOF inventories, especially in remote mountain regions. Here, we exploit high-resolution, multi-temporal satellite and aerial imagery, and documentary data to identify GLOF events across the glacierized Cordilleras of Peru and Bolivia, using a set of diagnostic geomorphic features. A total of 160 GLOFs from 151 individual sites are characterised and analysed, tripling the number of previously reported events. We provide statistics on location, magnitude, timing and characteristics of these events with implications for regional GLOF hazard identification and assessment. Furthermore, we describe several cases in detail and document a wide range of process chains associated with Andean GLOFs.

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KW - Bolivia

KW - Glacial lake outburst floods

KW - GLOF

KW - Peru

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U2 - 10.1016/j.gloplacha.2021.103722

DO - 10.1016/j.gloplacha.2021.103722

M3 - Article (Academic Journal)

AN - SCOPUS:85121448816

VL - 208

JO - Global and Planetary Change

JF - Global and Planetary Change

SN - 0921-8181

M1 - 103722

ER -

160 glacial lake outburst floods (GLOFs) across the Tropical Andes since the Little Ice Age

Abstract

Bibliographical note

Keywords

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