气候变化领域集成服务门户(CCPortal): Ice Phenology in Eurasian Lakes over Spatial Location and Altitude

CCPortal

DOI	10.3390/w14071037
	Ice Phenology in Eurasian Lakes over Spatial Location and Altitude
	Lepparanta, Matti; Wen, Lijuan
通讯作者	Wen, LJ (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Land Surface Proc & Climate Change Cold &, Lanzhou 730000, Peoples R China.
发表日期	2022
EISSN	2073-4441
卷号	14 期号:7
英文摘要	Eurasian freezing lakes cover an almost 180 degrees wide longitude sector between the latitudes 30 degrees and 75 degrees N, and their altitudes range from below the sea surface level up to 5 km elevation. Ice phenology varies widely in this region. However, these variations and their influence factors have been little studied. Analytic models are applied here to examine these variations supported by historical ice and weather data. These models are forced by a linear air-lake heat exchange formula based on local empirical fits. The weather brings latitude-longitude-altitude patterns to the large-scale lake ice phenology. Freezing and breakup dates are forced by the local air temperature and solar radiation, and their rates of change are also important. In addition, freezing depends on lake depth and breakup depends on accumulated ice thickness. Lake depth provides a lag and radiation balance provides a shift with respect to the air temperature in cooling of the lake, and breakup is dictated by spring warming conditions and ice thickness. Due to solar radiation forcing, the common degree-day approach is biased for modelling ice phenology, especially in low latitudes. Analytic models provide a first-order tool for climate sensitivity of ice seasons. The freezing date and breakup date both change by around five days per one-degree shift in air temperature away from the climatological ice margin; however, at this margin, the sensitivity is higher.
关键词	TIBETAN PLATEAU TIME-SERIES COVER CLIMATE SEASONS REGIME
英文关键词	ice phenology; Eurasia; analytical model; climate; altitude; spatial statistics
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Water Resources
WOS类目	Environmental Sciences ; Water Resources
WOS记录号	WOS:000781480700001
来源期刊	WATER
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/253656
作者单位	[Lepparanta, Matti] Univ Helsinki, Inst Atmospher & Earth Sci, Helsinki 00014, Finland; [Lepparanta, Matti; Wen, Lijuan] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Land Surface Proc & Climate Change Cold &, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Lepparanta, Matti,Wen, Lijuan. Ice Phenology in Eurasian Lakes over Spatial Location and Altitude[J]. 中国科学院西北生态环境资源研究院,2022,14(7).
APA	Lepparanta, Matti,&Wen, Lijuan.(2022).Ice Phenology in Eurasian Lakes over Spatial Location and Altitude.WATER,14(7).
MLA	Lepparanta, Matti,et al."Ice Phenology in Eurasian Lakes over Spatial Location and Altitude".WATER 14.7(2022).