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Introduction
Publications
Publications (40)
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 ae...
Observations of glacier mass changes are key to understanding the response of glaciers to climate change and related impacts, such as regional runoff, ecosystem changes, and global sea level rise. Spaceborne optical and radar sensors make it possible to quantify glacier elevation changes, and thus multi-annual mass changes, on a regional and global...
Los glaciares y el ambiente periglacial tienen una gran importancia para nuestro país, especialmente en las diez
provincias andinas, por lo que existen continuas presiones
sobre su (no) protección. En este artículo se describen los
avances en el conocimiento científico sobre los glaciares y
el ambiente periglacial desde que entró en vigencia la Ley...
Glaciers are crucial sources of freshwater in particular for the arid lowlands surrounding High Mountain Asia. To better constrain glacio-hydrological models, annual, or even better, seasonal information about glacier mass changes is highly beneficial. In this study, we evaluate the suitability of very-high-resolution Pléiades digital elevation mod...
Observations of glacier mass changes are key to understanding the response of glaciers to climate change and related impacts, such as regional runoff, ecosystem changes, and global sea-level rise. Spaceborne optical and radar sensors make it possible to quantify glacier elevation changes, and thus multi-annual mass changes, on a regional and global...
Glaciers are crucial sources of freshwater in particular for the arid lowlands surrounding High Mountain Asia. In order to better constrain glacio-hydrological models, annual, or even better, seasonal information about 25 glacier mass changes is highly beneficial. In this study, we test the suitability of very high-resolution Pleiades DEMs to measu...
We present geodetic mass-balance estimates for ten glaciers (22.6 ± 1.1 km2) around Volcán Domuyo between 1962 and 2020 (and 46 glaciers covering 29 ± 1.5 km2 between 1984 and 2020), derived from airborne, ASTER and Pléiades imagery. Overall, we find a slightly negative mass balance (−0.15 ± 0.09 m w.e. a–1) for the entire 1962–2020 time span. A cl...
Glaciers are crucial sources of freshwater in particular for the arid lowlands surrounding High Mountain Asia. In order to better constrain glacio-hydrological models, annual, or even better, seasonal information about glacier mass changes is highly beneficial. In this study, we test the suitability of very high-resolution Pleiades DEMs to measure...
Understanding accumulation regimes over glaciers in different subregions of High Mountain Asia is a challenge inhibiting the improved understanding of their freshwater regulatory role in highly populated, water-stressed regions. We generate DEMs from very-high resolution tri-stereo Pleiades imagery acquired between 2019-2022 and derive annual to se...
Current climatic conditions in Central Andes (CA) (31-36 °S) have triggered the reduction of glacier area. Although CA are geographically circumscribed to an area under the same macroclimatic domain, their rugged topography creates several topoclimates as response to the effects of elevation, slope and aspect (morphometric factors). This study expl...
El glaciar Gran Cachapoal es el segundo mayor glaciar con hielo cubierto, el sexto más grande y largo de los de los Andes centrales de Chile. A partir de una serie extensa de datos (1955-2019) provenientes de sensores remotos satelitales y aerotransportados, fue posible determinar valores de los cambios de área, volumen y masa, los cambios en la pr...
A number of glaciological observations on debris-covered glaciers around the globe have shown a delayed length and mass adjustment in relation to climate variability, a behavior normally attributed to the ice insulation effect of thick debris layers. Dynamic interactions between debris cover, geometry and surface topography of debris-covered glacie...
The detachment of large parts of low-angle mountain glaciers resulting in massive ice–rock avalanches have so far been believed to be a unique type of event, made known to the global scientific community first for the 2002 Kolka Glacier detachment, Caucasus Mountains, and then for the 2016 collapses of two glaciers in the Aru range, Tibet. Since 20...
This study validated the vertical exactitude and accuracy of seven digital elevation models DEM (SRTM X-SAR, SRTMv3 void voided 1 arcsec, SRTMv3 void filled 3 arcsec, SRTM GL1 Ellip, Aster GlobalDEM v3 2019/08. Alos World 3D 30m v21 2018/04,TamDEMx), considering both regional and local scale in middle/ higher mountain areas of the central Andes of...
This study validated the vertical exactitude and accuracy of seven digital elevation models DEM (SRTM X-SAR, SRTMv3 void voided 1 arcsec, SRTMv3 void filled 3 arcsec, SRTM GL1 Ellip, Aster GlobalDEM v3 2019/08. Alos World 3D 30m v21 2018/04, TamDEMx), considering both regional and local scale in middle/ higher mountain areas of the central Andes of...
The detachment of large parts of low-angle mountain glaciers, resulting in massive ice-rock avalanches, have so far been believed to be a unique type of event, made known to the global scientific community first for the 2002 Kolka Glacier detachment, Caucasus Mountains, and then for the 2016 collapses of two glaciers in the Aru range, Tibet. Since...
A full understanding of glacier changes in the Patagonian Andes over decadal to century time-scales is presently limited by a lack of detailed and appropriate long-term observations. Here, we present geodetic mass and area changes of three valley glaciers from Monte San Lorenzo derived from stereo aerial photos, the Shuttle Radar Topography Mission...
Among glacier instabilities, collapses of large parts of low-angle glaciers are a striking, exceptional phenomenon. So far, merely the 2002 collapse of Kolka Glacier in the Caucasus Mountains and the 2016 twin detachments of the Aru glaciers in western Tibet have been well documented. Here we report on the previously unnoticed collapse of an unname...
In contrast to the large surge-type glacier clusters widely known for several mountain ranges around the world, the presence of surging glaciers in the Andes has been historically seen as marginal. The improved availability of satellite imagery during the last years facilitates investigating of glaciers in more detail even in remote areas. The purp...
Among glacier instabilities, collapses of large parts of low-angle glaciers are a striking, exceptional phenomenon. So far, merely the 2002 collapse of Kolka Glacier in the Caucasus Mountains and the 2016 twin detachments of the Aru glaciers in western Tibet have been well documented. Here we report on the previously unnoticed collapse of an unname...
Among glacier instabilities, collapses of large parts of low-angle glaciers are a striking, exceptional phenomenon. So far, merely the 2002 collapse of Kolka Glacier in the Caucasus Mountains and the 2016 twin detachments of the Aru glaciers in western Tibet have been well documented. Here we report on the previously unnoticed collapse of an unname...
A pesar de ser una de las cadenas montañosas más largas y con mayor cobertura glaciar del mundo, existen vastas áreas de la Cordillera de los Andes donde las tendencias de cambio glaciar son poco conocidas. El presente estudio provee la primera estimación de los cambios de elevación, masa y volumen para 198 glaciares (90.74 km2) de la cuenca del rí...
In this study, we analyze the dynamic process of ice-dam formation by the Glaciar Perito Moreno (GPM), located
on the Argentinean side of the southern tip of South America. When this glacier advances through the waters
Lago Argentino and reaches the Península de Magallanes (PM), it has been regularly producing an ice-dam
between the Brazo Rico (BR)...
In this study we present surface velocities estimations for the Upsala glacier catchment, South Patagonian Ice Field (SPI)during thesummer season of years 2013(January-March) and 2014(March-April), including the Bertacchi, Cono, and Murallón tributaries using satellite images from Advanced Spaceborne Thermal Emission and Reflection Radiometer(ASTER...
RESUMEN En contraste con los clusters de grandes glaciares de tipo surge ampliamente conocidos en varias regiones montañosas en todo el mundo, la presencia de glaciares en surge en los Andes argentino-chilenos ha sido mayormente vista como marginal. En este trabajo, basado en el análisis de imágenes satelitales de media y alta resolución (Landsat,...
Despite renewed efforts to better understand glacier change and recognize glacier change
trends in the Andes, relatively large areas in the Andes of Argentina and Chile are still not investigated. In
this study, we report on glacier elevation and mass changes in the outer region of the Northern and
Southern Patagonian Icefields in the Southern Pata...
In this study we use optical ALOS AVNIR-2 and PRISM satellite images to map and inventory glaciers as well as active, inactive and fossil rock glaciers in the Volcán Domuyo region (36°16' S-36°54' S), located in the northwestern tip of the Neuquén Province in Argentina. The area is termed "Transition Cordillera" since it lies between the southernmo...
Although rock glaciers in the Central and
Desert Andes of Argentina and Chile have been previously
studied in detail, much less attention has been paid to
the occurrence of these permafrost forms in Patagonia.
Recently, however, the establishment of the Argentinean
Glacier Inventory program, which intends to inventory and
monitor all ice masses alo...
Rock glaciers near the Andean mountains of central and northwestern Argentina provide an important supply of water for agriculture, but data on their number, size, geographic distribution and altitudinal range are poorly known. Here, we provide the first detailed rock glacier inventory of the Valles Calchaquíes region of Salta, Argentina, based on...
We present the first glacier inventory of the Monte San Lorenzo region (47 degrees 35'S, 72 degrees 18'W) in the southern Patagonian Andes of Chile and Argentina. This region contains the largest and easternmost glaciers at these latitudes in South America. The inventory was developed using a combination of ASTER and Landsat ETM + scenes from 2005...
Los glaciares constituyen un factor clave en el entendimiento del cambio climático.
Con algunas excepciones, han experimentado un marcado retroceso general a escala
global durante el último siglo. En los Andes Húmedos de la Patagonia, el deterioro de
los glaciares alpinos ha sido documentado por numerosos autores. Para el Monte San
Lorenzo, estudio...
Questions
Question (1)
Hello,
I've been recently asked to contribute to a Scipod episode concerning publication of mine. In the past, I have received many emails from dubious publishers, seeking permission to revamp and publish previously published research, many of which are scams of various nature.
But what about Scipod?
