The Cryosphere
The Cryosphere
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Articles | Volume 16, issue 3
Articles | Volume 16, issue 3
https://doi.org/10.5194/tc-16-825-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-16-825-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 16, issue 3
Research article
 | 
11 Mar 2022
Research article |  | 11 Mar 2022

Convective heat transfer of spring meltwater accelerates active layer phase change in Tibet permafrost areas

Yi Zhao, Zhuotong Nan, Hailong Ji, and Lin Zhao

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Convective heat transfer (CHT) is important in affecting thermal regimes in permafrost regions. We quantified its thermal impacts by contrasting the simulation results from three scenarios in which the Simultaneous Heat and Water model includes full, partial, and no consideration of CHT. The results show the CHT commonly happens in shallow and middle soil depths during thawing periods and has greater impacts in spring than summer. The CHT has both heating and cooling effects on the active layer.
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