气候变化领域集成服务门户(CCPortal): Multimodel simulation of vertical gas transfer in a temperate lake

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DOI	10.5194/hess-24-697-2020
	Multimodel simulation of vertical gas transfer in a temperate lake
	Guseva S.; Bleninger T.; Jöhnk K.; Arcie Polli B.; Tan Z.; Thiery W.; Zhuang Q.; Anthony Rusak J.; Yao H.; Lorke A.; Stepanenko V.
发表日期	2020
ISSN	1027-5606
起始页码	697
结束页码	715
卷号	24 期号:2
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.
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]
来源期刊	Hydrology and Earth System Sciences
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/159499
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...
推荐引用方式 GB/T 7714	Guseva S.,Bleninger T.,Jöhnk K.,et al. Multimodel simulation of vertical gas transfer in a temperate lake[J],2020,24(2).
APA	Guseva S..,Bleninger T..,Jöhnk K..,Arcie Polli B..,Tan Z..,...&Stepanenko V..(2020).Multimodel simulation of vertical gas transfer in a temperate lake.Hydrology and Earth System Sciences,24(2).
MLA	Guseva S.,et al."Multimodel simulation of vertical gas transfer in a temperate lake".Hydrology and Earth System Sciences 24.2(2020).