Articles | Volume 14, issue 12
https://doi.org/10.5194/tc-14-4581-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-14-4581-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
16 Dec 2020
Research article |
| 16 Dec 2020
| 16 Dec 2020
Measurements and modeling of snow albedo at Alerce Glacier, Argentina: effects of volcanic ash, snow grain size, and cloudiness
Julián Gelman Constantin
CORRESPONDING AUTHOR
División de Química Atmosférica, Gerencia de Química, Comisión Nacional de Energía Atómica, Av General Paz 1499, San Martin, B1650KNA Buenos Aires, Argentina
Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
Lucas Ruiz
IANIGLA, Gobierno de Mendoza, Universidad Nacional de Cuyo, CONICET, CCT-Mendoza, Mendoza, Argentina
Gustavo Villarosa
Instituto Andino Patagónico de Tecnologías Biológicas y Geoambientales (IPATEC), CONICET-UNCo, Bariloche, Argentina
Departamento de Geología y Petróleo, Centro Regional Universitario Bariloche, Universidad Nacional del Comahue, Bariloche, Argentina
Valeria Outes
Instituto Andino Patagónico de Tecnologías Biológicas y Geoambientales (IPATEC), CONICET-UNCo, Bariloche, Argentina
Facundo N. Bajano
División de Química Atmosférica, Gerencia de Química, Comisión Nacional de Energía Atómica, Av General Paz 1499, San Martin, B1650KNA Buenos Aires, Argentina
Cenlin He
Research Applications Laboratory, National Center for Atmospheric Research, Boulder, CO, USA
Hector Bajano
División de Química Atmosférica, Gerencia de Química, Comisión Nacional de Energía Atómica, Av General Paz 1499, San Martin, B1650KNA Buenos Aires, Argentina
Laura Dawidowski
División de Química Atmosférica, Gerencia de Química, Comisión Nacional de Energía Atómica, Av General Paz 1499, San Martin, B1650KNA Buenos Aires, Argentina
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Cenlin He, Qinbin Li, Kuo-Nan Liou, Ling Qi, Shu Tao, and Joshua P. Schwarz
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C. He, K.-N. Liou, Y. Takano, R. Zhang, M. Levy Zamora, P. Yang, Q. Li, and L. R. Leung
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Y. H. Mao, Q. B. Li, D. K. Henze, Z. Jiang, D. B. A. Jones, M. Kopacz, C. He, L. Qi, M. Gao, W.-M. Hao, and K.-N. Liou
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We evaluate the potential of Pléiades sub-meter satellite stereo imagery to derive digital elevation models (DEMs) of glaciers and their elevation changes. The vertical precision of the DEMs is ±1 m, even ±0.5m on the flat glacier tongues. Similar precision levels are obtained in accumulation areas. Comparison of a Pléiades DEM with a SPOT5 DEM reveals the strongly negative region-wide mass balances of glaciers in the Mont Blanc area (-1.04±0.23m at 1 water equivalent) during 2003-2012.
C. He, Q. B. Li, K. N. Liou, J. Zhang, L. Qi, Y. Mao, M. Gao, Z. Lu, D. G. Streets, Q. Zhang, M. M. Sarin, and K. Ram
Atmos. Chem. Phys., 14, 7091–7112, https://doi.org/10.5194/acp-14-7091-2014, https://doi.org/10.5194/acp-14-7091-2014, 2014
Related subject area
Discipline: Glaciers | Subject: Atmospheric Interactions
Foehn winds at Pine Island Glacier and their role in ice changes
The role of föhn winds in eastern Antarctic Peninsula rapid ice shelf collapse
The distribution and evolution of supraglacial lakes on 79° N Glacier (north-eastern Greenland) and interannual climatic controls
Atmospheric extremes caused high oceanward sea surface slope triggering the biggest calving event in more than 50 years at the Amery Ice Shelf
Spatio-temporal flow variations driving heat exchange processes at a mountain glacier
Towards understanding the pattern of glacier mass balances in High Mountain Asia using regional climatic modelling
A multi-season investigation of glacier surface roughness lengths through in situ and remote observation
Variability in individual particle structure and mixing states between the glacier–snowpack and atmosphere in the northeastern Tibetan Plateau
Diana Francis, Ricardo Fonseca, Kyle S. Mattingly, Stef Lhermitte, and Catherine Walker
The Cryosphere, 17, 3041–3062, https://doi.org/10.5194/tc-17-3041-2023, https://doi.org/10.5194/tc-17-3041-2023, 2023
Short summary
Short summary
Role of Foehn Winds in ice and snow conditions at the Pine Island Glacier, West Antarctica.
Matthew K. Laffin, Charles S. Zender, Melchior van Wessem, and Sebastián Marinsek
The Cryosphere, 16, 1369–1381, https://doi.org/10.5194/tc-16-1369-2022, https://doi.org/10.5194/tc-16-1369-2022, 2022
Short summary
Short summary
The collapses of the Larsen A and B ice shelves on the Antarctic Peninsula (AP) occurred while the ice shelves were covered with large melt lakes, and ocean waves damaged the ice shelf fronts, triggering collapse. Observations show föhn winds were present on both ice shelves and increased surface melt and drove sea ice away from the ice front. Collapsed ice shelves experienced enhanced surface melt driven by föhn winds, whereas extant ice shelves are affected less by föhn-wind-induced melt.
Jenny V. Turton, Philipp Hochreuther, Nathalie Reimann, and Manuel T. Blau
The Cryosphere, 15, 3877–3896, https://doi.org/10.5194/tc-15-3877-2021, https://doi.org/10.5194/tc-15-3877-2021, 2021
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Short summary
We assess the climatic controls of melt lake development, melt duration, melt extent, and the spatial distribution of lakes of 79°N Glacier. There is a large interannual variability in the areal extent of the lakes and the maximum elevation of lake development, which is largely controlled by the summertime air temperatures and the snowpack thickness. Late-summer lake development can be prompted by spikes in surface mass balance. There is some evidence of inland expansion of lakes over time.
Diana Francis, Kyle S. Mattingly, Stef Lhermitte, Marouane Temimi, and Petra Heil
The Cryosphere, 15, 2147–2165, https://doi.org/10.5194/tc-15-2147-2021, https://doi.org/10.5194/tc-15-2147-2021, 2021
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The unexpected September 2019 calving event from the Amery Ice Shelf, the largest since 1963 and which occurred almost a decade earlier than expected, was triggered by atmospheric extremes. Explosive twin polar cyclones provided a deterministic role in this event by creating oceanward sea surface slope triggering the calving. The observed record-anomalous atmospheric conditions were promoted by blocking ridges and Antarctic-wide anomalous poleward transport of heat and moisture.
Rebecca Mott, Ivana Stiperski, and Lindsey Nicholson
The Cryosphere, 14, 4699–4718, https://doi.org/10.5194/tc-14-4699-2020, https://doi.org/10.5194/tc-14-4699-2020, 2020
Short summary
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The Hintereisferner Experiment (HEFEX) investigated spatial and temporal dynamics of the near-surface boundary layer and associated heat exchange processes close to the glacier surface during the melting season. Turbulence data suggest that strong changes in the local thermodynamic characteristics occur when westerly flows disturbed prevailing katabatic flow, forming across-glacier flows and facilitating warm-air advection from the surrounding ice-free areas, which potentially promote ice melt.
Remco J. de Kok, Philip D. A. Kraaijenbrink, Obbe A. Tuinenburg, Pleun N. J. Bonekamp, and Walter W. Immerzeel
The Cryosphere, 14, 3215–3234, https://doi.org/10.5194/tc-14-3215-2020, https://doi.org/10.5194/tc-14-3215-2020, 2020
Short summary
Short summary
Glaciers worldwide are shrinking, yet glaciers in parts of High Mountain Asia are growing. Using models of the regional climate and glacier growth, we reproduce the observed patterns of glacier growth and shrinkage in High Mountain Asia of the last decades. Increases in snow, in part from water that comes from lowland agriculture, have probably been more important than changes in temperature to explain the growing glaciers. We now better understand changes in the crucial mountain water cycle.
Noel Fitzpatrick, Valentina Radić, and Brian Menounos
The Cryosphere, 13, 1051–1071, https://doi.org/10.5194/tc-13-1051-2019, https://doi.org/10.5194/tc-13-1051-2019, 2019
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Measurements of surface roughness are rare on glaciers, despite being an important control for heat exchange with the atmosphere and surface melt. In this study, roughness values were determined through measurements at multiple locations and seasons and found to vary across glacier surfaces and to differ from commonly assumed values in melt models. Two new methods that remotely determine roughness from digital elevation models returned good performance and may facilitate improved melt modelling.
Zhiwen Dong, Shichang Kang, Dahe Qin, Yaping Shao, Sven Ulbrich, and Xiang Qin
The Cryosphere, 12, 3877–3890, https://doi.org/10.5194/tc-12-3877-2018, https://doi.org/10.5194/tc-12-3877-2018, 2018
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This study aimed to provide a first and unique record of physicochemical properties and mixing states of LAPs at the glacier and atmosphere interface over the northeastern Tibetan Plateau to determine the individual LAPs' structure aging and mixing state changes through the atmospheric deposition process from atmosphere to glacier–snowpack surface, thereby helping to characterize the LAPs' radiative forcing and climate effects in the cryosphere region.
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Short summary
We present the results of two field campaigns and modeling activities on the impact of atmospheric particles on Alerce Glacier (Argentinean Andes). We found that volcanic ash remains at different snow layers several years after eruption, increasing light absorption on the glacier surface (with a minor contribution of soot). This leads to 36 % higher annual glacier melting. We find remarkably that volcano eruptions in 2011 and 2015 have a relevant effect on the glacier even in 2016 and 2017.
We present the results of two field campaigns and modeling activities on the impact of...
