Impacts of salinity parameterizations on temperature simulation over and in a hypersaline lake

Wen, Lijuan, Nagabhatla, Nidhi, Zhao, Lin, Li, Zhaoguo and Chen, Shiqiang, (2015). Impacts of salinity parameterizations on temperature simulation over and in a hypersaline lake. Chinese Journal of Oceanology and Limnology, 33(3), 709-801

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  • Sub-type Journal article
    Author Wen, Lijuan
    Nagabhatla, Nidhi
    Zhao, Lin
    Li, Zhaoguo
    Chen, Shiqiang
    Title Impacts of salinity parameterizations on temperature simulation over and in a hypersaline lake
    Appearing in Chinese Journal of Oceanology and Limnology   Check publisher's open access policy
    Volume 33
    Issue No. 3
    Publication Date 2015-05
    Place of Publication Germany
    Publisher Science Press
    Start page 709
    End page 801
    Language eng
    Abstract In this paper, we introduced parameterizations of the salinity effects (on heat capacity, thermal conductivity, freezing point and saturated vapor pressure) in a lake scheme integrated in the Weather Research and Forecasting model coupled with the Community Land Model (WRF-CLM). This was done to improve temperature simulation over and in a saline lake and to test the contributions of salinity effects on various water properties via sensitivity experiments. The modified lake scheme consists of the lake module in the CLM model, which is the land component of the WRF-CLM model. The Great Salt Lake (GSL) in the USA was selected as the study area. The simulation was performed from September 3, 2001 to September 30, 2002. Our results show that the modified WRF-CLM model that includes the lake scheme considering salinity effects can reasonably simulate temperature over and in the GSL. This model had much greater accuracy than neglecting salinity effects, particularly in a very cold event when that effect alters the freezing point. The salinity effect on saturated vapor pressure can reduce latent heat flux over the lake and make it slightly warmer. The salinity effect on heat capacity can also make lake temperature prone to changes. However, the salinity effect on thermal conductivity was found insignificant in our simulations.
    Keyword Temperature simulation
    Salinity parameterizations
    WRF-CLM
    Great Salt Lake
    Copyright Holder Springer
    Copyright Year 2015
    Copyright type Creative commons
    ISSN 1993-5005
    DOI 10.1007/s00343-015-4153-3
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    Created: Tue, 21 Jun 2016, 23:15:26 JST by Anderson, Kelsey on behalf of UNU INWEH