globalchange  > 气候变化与战略
DOI: 10.5194/hess-24-697-2020
论文题名:
Multimodel simulation of vertical gas transfer in a temperate lake
作者: Guseva S.; Bleninger T.; Jöhnk K.; Arcie Polli B.; Tan Z.; Thiery W.; Zhuang Q.; Anthony Rusak J.; Yao H.; Lorke A.; Stepanenko V.
刊名: Hydrology and Earth System Sciences
ISSN: 1027-5606
出版年: 2020
卷: 24, 期:2
起始页码: 697
结束页码: 715
语种: 英语
Scopus关键词: Biogeochemistry ; Carbon dioxide ; Dissolved oxygen ; Gas dynamics ; Greenhouse gases ; Lakes ; Weather forecasting ; Biogeochemical process ; Forecasting ability ; Greenhouse gas exchange ; Multi-Model Simulations ; Numerical weather prediction ; Physical variables ; Seasonal temperature ; Turbulence closures ; Climate models ; biogeochemistry ; carbon dioxide ; climate modeling ; climate prediction ; complexity ; concentration (composition) ; correlation ; diffusivity ; dissolved gas ; gas exchange ; greenhouse gas ; prediction ; temperate environment ; Canada ; Harp Lake ; Ontario [Canada]
英文摘要: In recent decades, several lake models of varying complexity have been developed and incorporated into numerical weather prediction systems and climate models. To foster enhanced forecasting ability and verification, improvement of these lake models remains essential. This especially applies to the limited simulation capabilities of biogeochemical processes in lakes and greenhouse gas exchanges with the atmosphere. Here we present multi-model simulations of physical variables and dissolved gas dynamics in a temperate lake (Harp Lake, Canada). The five models (ALBM, FLake, LAKE, LAKEoneD, MTCR-1) considered within this most recent round of the Lake Model Intercomparison Project (LakeMIP) all captured the seasonal temperature variability well. In contrast, none of the models is able to reproduce the exact dates of ice cover and ice off, leading to considerable errors in the simulation of eddy diffusivity around those dates. We then conducted an additional modeling experiment with a diffusing passive tracer to isolate the effect of the eddy diffusivity on gas concentration. Remarkably, sophisticated k - ϵ models do not demonstrate a significant difference in the vertical diffusion of a passive tracer compared to models with much simpler turbulence closures. All the models simulate less intensive spring overturn compared to autumn. Reduced mixing in the models consequently leads to the accumulation of the passive tracer distribution in the water column. The lake models with a comprehensive biogeochemical module, such as the ALBM and LAKE, predict dissolved oxygen dynamics adequate to the observed data. However, for the surface carbon dioxide concentration the correlation between modeled (ALBM, LAKE) and observed data is weak (~ 0:3). Overall our results indicate the need to improve the representation of physical and biogeochemical processes in lake models, thereby contributing to enhanced weather prediction and climate projection capabilities. © 2020 Royal Society of Chemistry. All rights reserved.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/162789
Appears in Collections:气候变化与战略

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作者单位: Guseva, S., Institute for Environmental Sciences, University of Koblenz-Landau, Landau, Germany, Department of Geography, Lomonosov Moscow State University, Moscow, Russian Federation; Bleninger, T., Graduate Program on Water Resources and Environmental Engineering, Federal University of Paraná, Curitiba, Brazil; Jöhnk, K., Csiro Land and Water, Black Mountain, Canberra, ACT 2601, Australia; Arcie Polli, B., Graduate Program on Water Resources and Environmental Engineering, Federal University of Paraná, Curitiba, Brazil; Tan, Z., Pacific Northwest National Laboratory, Richland, WA, United States; Thiery, W., Institute for Atmospheric and Climate Science, Eth Zurich, Zurich, Switzerland, Department of Hydrology and Hydraulic Engineering, Vrije Universiteit Brussel, Brussels, Belgium; Zhuang, Q., Department of Earth, Atmospheric, and Planetary Sciences, Purdue University, West Lafayette, IN, United States; Anthony Rusak, J., Dorset Environmental Science Centre, Ontario Ministry of Environment, Conservation and Parks, Dorset, ON P0A 1E0, Canada; Yao, H., Dorset Environmental Science Centre, Ontario Ministry of Environment, Conservation and Parks, Dorset, ON P0A 1E0, Canada; Lorke, A., Institute for Environmental Sciences, University of Koblenz-Landau, Landau, Germany; Stepanenko, V., Laboratory for Supercomputer Modeling of Climate System Processes, Research Computing Center, Lomonosov Moscow State University, Moscow, Russian Federation, Department of Meteorology and Climatology, Faculty of Geography, Lomonosov Moscow State University, Moscow, Russian Federation

Recommended Citation:
Guseva S.,Bleninger T.,Jöhnk K.,et al. Multimodel simulation of vertical gas transfer in a temperate lake[J]. Hydrology and Earth System Sciences,2020-01-01,24(2)
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