Interannual variations in the hydrothermal regime around a thermokarst lake in Beiluhe, Qinghai-Tibet Plateau

Geomorphology ◽  
2017 ◽  
Vol 276 ◽  
pp. 16-26 ◽  
Author(s):  
Z.J. Lin ◽  
F.J. Niu ◽  
J.H. Fang ◽  
J. Luo ◽  
G.A. Yin
2019 ◽  
Vol 30 (1) ◽  
pp. 58-71 ◽  
Author(s):  
Yuzhong Yang ◽  
Qingbai Wu ◽  
Yandong Hou ◽  
Peng Zhang ◽  
Hanbo Yun ◽  
...  

2014 ◽  
Vol 25 (1) ◽  
pp. 60-68 ◽  
Author(s):  
Xicai Pan ◽  
Yanhui You ◽  
Kurt Roth ◽  
Lei Guo ◽  
Xinbing Wang ◽  
...  

2021 ◽  
Vol 14 (3) ◽  
pp. 1753-1771
Author(s):  
Xiangfei Li ◽  
Tonghua Wu ◽  
Xiaodong Wu ◽  
Jie Chen ◽  
Xiaofan Zhu ◽  
...  

Abstract. Extensive and rigorous model intercomparison is of great importance before model application due to the uncertainties in current land surface models (LSMs). Without considering the uncertainties in forcing data and model parameters, this study designed an ensemble of 55 296 experiments to evaluate the Noah LSM with multi-parameterization (Noah-MP) for snow cover events (SCEs), soil temperature (ST) and soil liquid water (SLW) simulation, and investigated the sensitivity of parameterization schemes at a typical permafrost site on the Qinghai–Tibet Plateau (QTP). The results showed that Noah-MP systematically overestimates snow cover, which could be greatly resolved when adopting the sublimation from wind and a semi-implicit snow/soil temperature time scheme. As a result of the overestimated snow, Noah-MP generally underestimates ST, which is mostly influenced by the snow process. A systematic cold bias and large uncertainties in soil temperature remain after eliminating the effects of snow, particularly in the deep layers and during the cold season. The combination of roughness length for heat and under-canopy (below-canopy) aerodynamic resistance contributes to resolving the cold bias in soil temperature. In addition, Noah-MP generally underestimates top SLW. The runoff and groundwater (RUN) process dominates the SLW simulation in comparison to the very limited impacts of all other physical processes. The analysis of the model structural uncertainties and characteristics of each scheme would be constructive to a better understanding of the land surface processes in the permafrost regions of the QTP as well as to further model improvements towards soil hydrothermal regime modeling using LSMs.


2017 ◽  
Vol 31 (13) ◽  
pp. 2429-2437 ◽  
Author(s):  
Yanhui You ◽  
Qihao Yu ◽  
Xicai Pan ◽  
Xinbin Wang ◽  
Lei Guo ◽  
...  

2017 ◽  
Vol 555 ◽  
pp. 621-630 ◽  
Author(s):  
Xicai Pan ◽  
Qihao Yu ◽  
Yanhui You ◽  
Kwok Pan Chun ◽  
Xiaogang Shi ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document