Rock Glacier Kinematics in the Valles Calchaquíes Region, Northwestern Argentina, From Multi‐Temporal Aerial and Satellite Imagery (1968–2023)

Autores
Blöthe, Jan Henrik; Falaschi, Daniel; Vivero, Sebastián; Tadono, Takeo
Año de publicación
2024
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In semiarid mountain ranges, rock glaciers constitute an important part of the periglacial environment. However, quantitative data on the state of rock glacier activity remain scarce. Here, we derive kinematic information on rock glaciers located in the Valles Calchaquíes region (24–25° S) in Argentina from optical feature tracking in historical aerial photographs, ALOS PRISM, and CBERS-4A imagery for 175 landforms between 1968 and 2023. To overcome matching difficulties resulting from varying image quality and lighting conditions, we make use of directional filters to enhance feature-tracking performance. We find the mean surface velocities exceeding the limit of detection (LoD) of our analysis to fall between 0.28 and 0.70 m yr−1 for all three epochs. Automatically deriving moving areas (MAs) with homogeneous flow fields from our data, we find between 46% and 25% of MAs are exceeding the LoD of our analysis. Analyzing data that covers more than five decades, we find largely unchanged rock glacier velocities, despite significant warming documented for the region. Our study provides the first quantitative information on rock glacier kinematics for multiple landforms in the Desert Andes of Argentina, contributing important information to assess the impacts of climate warming on this remote periglacial environment.
Fil: Blöthe, Jan Henrik. Albert Ludwigs University of Freiburg; Alemania
Fil: Falaschi, Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina
Fil: Vivero, Sebastián. École Polytechnique Fédérale de Lausanne; Suiza
Fil: Tadono, Takeo. Japan Aerospace Exploration Agency; Japón
Materia
Desert Andes
feature tracking
kinematics
optical imagery
rock glaciers
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/263800
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Rock Glacier Kinematics in the Valles Calchaquíes Region, Northwestern Argentina, From Multi‐Temporal Aerial and Satellite Imagery (1968–2023)Blöthe, Jan HenrikFalaschi, DanielVivero, SebastiánTadono, TakeoDesert Andesfeature trackingkinematicsoptical imageryrock glaciershttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1In semiarid mountain ranges, rock glaciers constitute an important part of the periglacial environment. However, quantitative data on the state of rock glacier activity remain scarce. Here, we derive kinematic information on rock glaciers located in the Valles Calchaquíes region (24–25° S) in Argentina from optical feature tracking in historical aerial photographs, ALOS PRISM, and CBERS-4A imagery for 175 landforms between 1968 and 2023. To overcome matching difficulties resulting from varying image quality and lighting conditions, we make use of directional filters to enhance feature-tracking performance. We find the mean surface velocities exceeding the limit of detection (LoD) of our analysis to fall between 0.28 and 0.70 m yr−1 for all three epochs. Automatically deriving moving areas (MAs) with homogeneous flow fields from our data, we find between 46% and 25% of MAs are exceeding the LoD of our analysis. Analyzing data that covers more than five decades, we find largely unchanged rock glacier velocities, despite significant warming documented for the region. Our study provides the first quantitative information on rock glacier kinematics for multiple landforms in the Desert Andes of Argentina, contributing important information to assess the impacts of climate warming on this remote periglacial environment.Fil: Blöthe, Jan Henrik. Albert Ludwigs University of Freiburg; AlemaniaFil: Falaschi, Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; ArgentinaFil: Vivero, Sebastián. École Polytechnique Fédérale de Lausanne; SuizaFil: Tadono, Takeo. Japan Aerospace Exploration Agency; JapónJohn Wiley & Sons Ltd2024-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/263800Blöthe, Jan Henrik; Falaschi, Daniel; Vivero, Sebastián; Tadono, Takeo; Rock Glacier Kinematics in the Valles Calchaquíes Region, Northwestern Argentina, From Multi‐Temporal Aerial and Satellite Imagery (1968–2023); John Wiley & Sons Ltd; Permafrost And Periglacial Processes; 36; 1; 11-2024; 123-1361045-6740CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1002/ppp.2260info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:56:47Zoai:ri.conicet.gov.ar:11336/263800instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-15 14:56:47.644CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Rock Glacier Kinematics in the Valles Calchaquíes Region, Northwestern Argentina, From Multi‐Temporal Aerial and Satellite Imagery (1968–2023)
title Rock Glacier Kinematics in the Valles Calchaquíes Region, Northwestern Argentina, From Multi‐Temporal Aerial and Satellite Imagery (1968–2023)
spellingShingle Rock Glacier Kinematics in the Valles Calchaquíes Region, Northwestern Argentina, From Multi‐Temporal Aerial and Satellite Imagery (1968–2023)
Blöthe, Jan Henrik
Desert Andes
feature tracking
kinematics
optical imagery
rock glaciers
title_short Rock Glacier Kinematics in the Valles Calchaquíes Region, Northwestern Argentina, From Multi‐Temporal Aerial and Satellite Imagery (1968–2023)
title_full Rock Glacier Kinematics in the Valles Calchaquíes Region, Northwestern Argentina, From Multi‐Temporal Aerial and Satellite Imagery (1968–2023)
title_fullStr Rock Glacier Kinematics in the Valles Calchaquíes Region, Northwestern Argentina, From Multi‐Temporal Aerial and Satellite Imagery (1968–2023)
title_full_unstemmed Rock Glacier Kinematics in the Valles Calchaquíes Region, Northwestern Argentina, From Multi‐Temporal Aerial and Satellite Imagery (1968–2023)
title_sort Rock Glacier Kinematics in the Valles Calchaquíes Region, Northwestern Argentina, From Multi‐Temporal Aerial and Satellite Imagery (1968–2023)
dc.creator.none.fl_str_mv Blöthe, Jan Henrik
Falaschi, Daniel
Vivero, Sebastián
Tadono, Takeo
author Blöthe, Jan Henrik
author_facet Blöthe, Jan Henrik
Falaschi, Daniel
Vivero, Sebastián
Tadono, Takeo
author_role author
author2 Falaschi, Daniel
Vivero, Sebastián
Tadono, Takeo
author2_role author
author
author
dc.subject.none.fl_str_mv Desert Andes
feature tracking
kinematics
optical imagery
rock glaciers
topic Desert Andes
feature tracking
kinematics
optical imagery
rock glaciers
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv In semiarid mountain ranges, rock glaciers constitute an important part of the periglacial environment. However, quantitative data on the state of rock glacier activity remain scarce. Here, we derive kinematic information on rock glaciers located in the Valles Calchaquíes region (24–25° S) in Argentina from optical feature tracking in historical aerial photographs, ALOS PRISM, and CBERS-4A imagery for 175 landforms between 1968 and 2023. To overcome matching difficulties resulting from varying image quality and lighting conditions, we make use of directional filters to enhance feature-tracking performance. We find the mean surface velocities exceeding the limit of detection (LoD) of our analysis to fall between 0.28 and 0.70 m yr−1 for all three epochs. Automatically deriving moving areas (MAs) with homogeneous flow fields from our data, we find between 46% and 25% of MAs are exceeding the LoD of our analysis. Analyzing data that covers more than five decades, we find largely unchanged rock glacier velocities, despite significant warming documented for the region. Our study provides the first quantitative information on rock glacier kinematics for multiple landforms in the Desert Andes of Argentina, contributing important information to assess the impacts of climate warming on this remote periglacial environment.
Fil: Blöthe, Jan Henrik. Albert Ludwigs University of Freiburg; Alemania
Fil: Falaschi, Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina
Fil: Vivero, Sebastián. École Polytechnique Fédérale de Lausanne; Suiza
Fil: Tadono, Takeo. Japan Aerospace Exploration Agency; Japón
description In semiarid mountain ranges, rock glaciers constitute an important part of the periglacial environment. However, quantitative data on the state of rock glacier activity remain scarce. Here, we derive kinematic information on rock glaciers located in the Valles Calchaquíes region (24–25° S) in Argentina from optical feature tracking in historical aerial photographs, ALOS PRISM, and CBERS-4A imagery for 175 landforms between 1968 and 2023. To overcome matching difficulties resulting from varying image quality and lighting conditions, we make use of directional filters to enhance feature-tracking performance. We find the mean surface velocities exceeding the limit of detection (LoD) of our analysis to fall between 0.28 and 0.70 m yr−1 for all three epochs. Automatically deriving moving areas (MAs) with homogeneous flow fields from our data, we find between 46% and 25% of MAs are exceeding the LoD of our analysis. Analyzing data that covers more than five decades, we find largely unchanged rock glacier velocities, despite significant warming documented for the region. Our study provides the first quantitative information on rock glacier kinematics for multiple landforms in the Desert Andes of Argentina, contributing important information to assess the impacts of climate warming on this remote periglacial environment.
publishDate 2024
dc.date.none.fl_str_mv 2024-11
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/263800
Blöthe, Jan Henrik; Falaschi, Daniel; Vivero, Sebastián; Tadono, Takeo; Rock Glacier Kinematics in the Valles Calchaquíes Region, Northwestern Argentina, From Multi‐Temporal Aerial and Satellite Imagery (1968–2023); John Wiley & Sons Ltd; Permafrost And Periglacial Processes; 36; 1; 11-2024; 123-136
1045-6740
CONICET Digital
CONICET
url http://hdl.handle.net/11336/263800
identifier_str_mv Blöthe, Jan Henrik; Falaschi, Daniel; Vivero, Sebastián; Tadono, Takeo; Rock Glacier Kinematics in the Valles Calchaquíes Region, Northwestern Argentina, From Multi‐Temporal Aerial and Satellite Imagery (1968–2023); John Wiley & Sons Ltd; Permafrost And Periglacial Processes; 36; 1; 11-2024; 123-136
1045-6740
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1002/ppp.2260
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv John Wiley & Sons Ltd
publisher.none.fl_str_mv John Wiley & Sons Ltd
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.22299

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