气候变化领域集成服务门户(CCPortal): Evaluating and Improving the Performance of Three 1-D Lake Models in a Large Deep Lake of the Central Tibetan Plateau

CCPortal

DOI	10.1029/2018JD029610
	Evaluating and Improving the Performance of Three 1-D Lake Models in a Large Deep Lake of the Central Tibetan Plateau
	Huang, Anning; Lazhu; Wang, Junbo; Dai, Yongjiu; Yang, Kun; Wei, Nan; Wen, Lijuan; Wu, Yang; Zhu, Xueyan; Zhang, Xindan; Cai, Shuxin
通讯作者	Lazhu (通讯作者)
发表日期	2019
ISSN	2169-897X
EISSN	2169-8996
起始页码	3143
结束页码	3167
卷号	124 期号:6
英文摘要	The ability of FLake, WRF-Lake, and CoLM-Lake models in simulating the thermal features of Lake Nam Co in Central Tibetan Plateau has been evaluated in this study. All the three models with default settings exhibited distinct errors in the simulated vertical temperature profile. Then model calibration was conducted by adjusting three (four) key parameters within FLake and CoLM-Lake (WRF-Lake) in a series of sensitive experiments. Results showed that each model's performance is sensitive to the key parameters and becomes much better when adjusting all the key parameters relative to tuning single parameter. Overall, setting the temperature of maximum water density to 1.1 degrees C instead of 4 degrees C in the three models consistently leads to improved vertical thermal structure simulation during cold seasons; reducing the light extinction coefficient in FLake results in much deeper mixed layer and warmer thermocline during warm seasons in better agreement with the observation. The vertical thermal structure can be clearly improved by decreasing the light extinction coefficient and increasing the turbulent mixing in WRF-Lake and CoLM-Lake during warm seasons. Meanwhile, the modeled water temperature profile in warm seasons can be significantly improved by further replacing the constant surface roughness lengths by a parameterized scheme in WRF-Lake. Further intercomparison indicates that among the three calibrated models, FLake (WRF-Lake) performs the best to simulate the temporal evolution and intensity of temperature in the layers shallower (deeper) than 10m, while WRF-Lake is the best at simulating the amplitude and pattern of the temperature variability at all depths.
关键词	REGIONAL CLIMATE MODEL LAURENTIAN GREAT-LAKES NAM CO BASIN SHALLOW LAKE FLAKE MODEL POTENTIAL TEMPERATURE SUMMER PRECIPITATION WATER TEMPERATURE PHYSICAL CONTROLS DIFFUSE FRACTION
英文关键词	lake model evaluation; Lake Nam Co; Tibetan Plateau; thermal structure
语种	英语
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:000464653500018
来源期刊	JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/259540
推荐引用方式 GB/T 7714	Huang, Anning,Lazhu,Wang, Junbo,et al. Evaluating and Improving the Performance of Three 1-D Lake Models in a Large Deep Lake of the Central Tibetan Plateau[J]. 中国科学院青藏高原研究所,2019,124(6).
APA	Huang, Anning.,Lazhu.,Wang, Junbo.,Dai, Yongjiu.,Yang, Kun.,...&Cai, Shuxin.(2019).Evaluating and Improving the Performance of Three 1-D Lake Models in a Large Deep Lake of the Central Tibetan Plateau.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,124(6).
MLA	Huang, Anning,et al."Evaluating and Improving the Performance of Three 1-D Lake Models in a Large Deep Lake of the Central Tibetan Plateau".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 124.6(2019).