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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/263800
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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 Técnicas2025-09-29T10:00:50Zoai: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:34982025-09-29 10:00:50.718CONICET 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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1844613794577252352 |
score |
13.070432 |