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Evaluation of the Effect of Stability Schemes on the Simulation of Land Surface Processes at a Western Tibetan Site

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  • Xingbing Zhao

    (School of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing 210044, China
    Institute of Plateau Meteorology, China Meteorological Administration, Chengdu 610072, China
    Heavy Rain and Drought-Flood Disasters in Plateau and Basin Key Laboratory of Sichuan Province, Chengdu 610072, China)

  • Zhiwei Heng

    (Institute of Plateau Meteorology, China Meteorological Administration, Chengdu 610072, China
    Heavy Rain and Drought-Flood Disasters in Plateau and Basin Key Laboratory of Sichuan Province, Chengdu 610072, China)

  • Xingwen Jiang

    (Institute of Plateau Meteorology, China Meteorological Administration, Chengdu 610072, China
    Heavy Rain and Drought-Flood Disasters in Plateau and Basin Key Laboratory of Sichuan Province, Chengdu 610072, China)

  • Qidong Yang

    (Department of Atmospheric Science, Yunnan University, Kunming 650091, China)

  • Yubin Li

    (School of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing 210044, China)

  • Yuanjian Yang

    (School of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing 210044, China)

  • Zhiqiu Gao

    (School of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing 210044, China)

Abstract

The surface fluxes calculated in land surface models (LSMs) are sensitive to the determination of the stability parameter. Further, calculation of the surface fluxes over the Tibetan Plateau (TP) is crucial in the simulation of regional and global weather and climate. In this study, we use 2-year micrometeorological data measured from Shiquanhe, located in the western TP, to evaluate the performance of the widely used Noah LSM with five stability parameterization schemes. Results show that all five stability parameterization schemes can generally reproduce the observations, but the scheme proposed by Li has the smallest bias. The reason is that Li’s scheme is more accurate under the unstable condition, and the surface layer at Shiquanhe is mostly unstable. Further, the four non-iterative schemes show an advantage in terms of their computational efficiency compared to the iterative scheme adopted by the Noah LSM.

Suggested Citation

  • Xingbing Zhao & Zhiwei Heng & Xingwen Jiang & Qidong Yang & Yubin Li & Yuanjian Yang & Zhiqiu Gao, 2021. "Evaluation of the Effect of Stability Schemes on the Simulation of Land Surface Processes at a Western Tibetan Site," Land, MDPI, vol. 10(3), pages 1-15, March.
    • Handle: RePEc:gam:jlands:v:10:y:2021:i:3:p:253-:d:509307
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