Surface energy and mass balance at Purogangri ice cap, central Tibetan Plateau, 2001–2011
Most glaciers on the Tibetan Plateau are difficult to assess as they are located in remote regions at high altitude. This study focuses on the surface energy-balance (SEB) and mass-balance (MB) characteristics of Purogangri ice cap (PIC). A ‘COupled Snowpack and Ice surface energy and MAss balance m...
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ftdatacite:10.18452/18612 2023-05-15T16:38:10+02:00 Surface energy and mass balance at Purogangri ice cap, central Tibetan Plateau, 2001–2011 Huintjes, Eva Neckel, Niklas Hochschild, Volker Schneider, Christoph 2015 https://dx.doi.org/10.18452/18612 https://edoc.hu-berlin.de/handle/18452/19311 unknown Humboldt-Universität zu Berlin energy balance glacier flow glacier mass balance glacier modelling ice and climate 915 Geografie Asiens und Reisen in Asien CreativeWork article 2015 ftdatacite https://doi.org/10.18452/18612 2021-11-05T12:55:41Z Most glaciers on the Tibetan Plateau are difficult to assess as they are located in remote regions at high altitude. This study focuses on the surface energy-balance (SEB) and mass-balance (MB) characteristics of Purogangri ice cap (PIC). A ‘COupled Snowpack and Ice surface energy and MAss balance model’ (COSIMA) is applied without observational data from the ground. The model is forced by a meteorological dataset from the High Asia Refined analysis. Model results for annual surface elevation changes and MB agree well with the results of a previous remote-sensing estimate. Low surface velocities of 0.026 � 0.012 m d–1 were measured by repeat-pass InSAR. This finding supports the validation of the steady-state COSIMA against satellite-derived surface changes. Overall MB of PIC for the period 2001–11 is nearly balanced (–44 kg m–2 a–1). Analysis of the model-derived SEB/MB components reveals that a significant amount of snowfall in spring is responsible for high surface albedo throughout the year. Thus, the average surface energy loss through net longwave radiation is larger than the energy gain through net shortwave radiation. The dry continental climate favours mass loss through sublimation, which accounts for 66% of the total mass loss. Article in Journal/Newspaper Ice cap DataCite Metadata Store (German National Library of Science and Technology) |
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DataCite Metadata Store (German National Library of Science and Technology) |
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language |
unknown |
topic |
energy balance glacier flow glacier mass balance glacier modelling ice and climate 915 Geografie Asiens und Reisen in Asien |
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energy balance glacier flow glacier mass balance glacier modelling ice and climate 915 Geografie Asiens und Reisen in Asien Huintjes, Eva Neckel, Niklas Hochschild, Volker Schneider, Christoph Surface energy and mass balance at Purogangri ice cap, central Tibetan Plateau, 2001–2011 |
topic_facet |
energy balance glacier flow glacier mass balance glacier modelling ice and climate 915 Geografie Asiens und Reisen in Asien |
description |
Most glaciers on the Tibetan Plateau are difficult to assess as they are located in remote regions at high altitude. This study focuses on the surface energy-balance (SEB) and mass-balance (MB) characteristics of Purogangri ice cap (PIC). A ‘COupled Snowpack and Ice surface energy and MAss balance model’ (COSIMA) is applied without observational data from the ground. The model is forced by a meteorological dataset from the High Asia Refined analysis. Model results for annual surface elevation changes and MB agree well with the results of a previous remote-sensing estimate. Low surface velocities of 0.026 � 0.012 m d–1 were measured by repeat-pass InSAR. This finding supports the validation of the steady-state COSIMA against satellite-derived surface changes. Overall MB of PIC for the period 2001–11 is nearly balanced (–44 kg m–2 a–1). Analysis of the model-derived SEB/MB components reveals that a significant amount of snowfall in spring is responsible for high surface albedo throughout the year. Thus, the average surface energy loss through net longwave radiation is larger than the energy gain through net shortwave radiation. The dry continental climate favours mass loss through sublimation, which accounts for 66% of the total mass loss. |
format |
Article in Journal/Newspaper |
author |
Huintjes, Eva Neckel, Niklas Hochschild, Volker Schneider, Christoph |
author_facet |
Huintjes, Eva Neckel, Niklas Hochschild, Volker Schneider, Christoph |
author_sort |
Huintjes, Eva |
title |
Surface energy and mass balance at Purogangri ice cap, central Tibetan Plateau, 2001–2011 |
title_short |
Surface energy and mass balance at Purogangri ice cap, central Tibetan Plateau, 2001–2011 |
title_full |
Surface energy and mass balance at Purogangri ice cap, central Tibetan Plateau, 2001–2011 |
title_fullStr |
Surface energy and mass balance at Purogangri ice cap, central Tibetan Plateau, 2001–2011 |
title_full_unstemmed |
Surface energy and mass balance at Purogangri ice cap, central Tibetan Plateau, 2001–2011 |
title_sort |
surface energy and mass balance at purogangri ice cap, central tibetan plateau, 2001–2011 |
publisher |
Humboldt-Universität zu Berlin |
publishDate |
2015 |
url |
https://dx.doi.org/10.18452/18612 https://edoc.hu-berlin.de/handle/18452/19311 |
genre |
Ice cap |
genre_facet |
Ice cap |
op_doi |
https://doi.org/10.18452/18612 |
_version_ |
1766028459257102336 |