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Mass balance of a maritime glacier on the southeast Tibetan Plateau and its climatic sensitivity

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Yang, Wei, Yao, Tandong, Guo, Xiaofeng, Zhu, Meilin, Li, Shenghai, Kattel, Dambaru B.. Mass balance of a maritime glacier on the southeast Tibetan Plateau and its climatic sensitivity. Journal of Geophysical Research: Atmospheres, 2013, 118(17):9579-9594. doi:10.1002/jgrd.50760

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Type Of Reference JOUR
Title Mass balance of a maritime glacier on the southeast Tibetan Plateau and its climatic sensitivity
Authors Yang, Wei| Yao, Tandong| Guo, Xiaofeng| Zhu, Meilin| Li, Shenghai| Kattel, Dambaru B.|
Secondary Title Journal of Geophysical Research: Atmospheres
Abstract Based on glaciometeorological measurements and mass balance stake records during the 5 year period of 2005–2010 on the southeast Tibetan Plateau, an energy-mass balance model was applied to study the surface mass balance of the Parlung No. 94 Glacier, as well as its response to regional climate conditions. The primary physical parameters involved in the model were locally calibrated by using relevant glaciometeorological data sets. The good agreement between the snowpack height/mass balance simulations and the in situ measurements available from a total of 12 monitoring stakes over this glacier confirmed the satisfactory performance of the energy-mass balance model. Results suggested that the recent state of the Parlung No. 94 Glacier was far removed from the “ideal” climatic regime leading to zero mass balance, with its annual mass balance of approximately −0.9 m water equivalent during 2005–2010. Climatic sensitivity experiments were also carried out to interpret the observed mass balance changes, and the experiments demonstrated that the maritime glaciers concerned herein were theoretically more vulnerable to ongoing climate warming on the Tibetan Plateau than potential changes in the amount of precipitation. A plausible causal explanation for the recent glacier shrinkage in this region was concerned with the increasing air temperature. Moreover, both the mass balance simulations and the field measurements indicated that the mass accumulation over this maritime glacier occurred primarily in the boreal spring. Such “spring-accumulation type” glaciers are presumed to be distributed mainly within a narrow wedge-shaped region along the Brahmaputra River. Climatic sensitivities of the glacier mass balance are also found to be closely linked to the regional precipitation seasonality that is simultaneously modulated by various atmospheric circulation patterns, such as the southern westerlies, the Bay of Bengal vortex in the spring season, and the Indian monsoon in the summer season.
Date 2013//16/
Year 2013
DOI 10.1002/jgrd.50760
Database Provider Wiley Online Library
volume 118
Issue Number 17
Start Page 9579
Alternate Title1 J. Geophys. Res. Atmos.
Language en
Issn 2169-8996
Url http://onlinelibrary.wiley.com/doi/10.1002/jgrd.50760/abstract
Access Date 2016/07/12/05:30:44
Keywords 0762 Mass balance| 0776 Glaciology| 0798 Modeling| climatic sensitivity| Glacier mass balance| Tibetan glacier|
file_attachments2 http://onlinelibrary.wiley.com/doi/10.1002/jgrd.50760/abstract
notes <p>7a35329c-c53f-4267-aa07-e0037d913a21</p>
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