Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1007/s10584-018-2275-2 |
The fate of Lake Baikal: how climate change may alter deep ventilation in the largest lake on Earth | |
Piccolroaz, Sebastiano1,2; Toffolon, Marco2 | |
2018-10-01 | |
发表期刊 | CLIMATIC CHANGE
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ISSN | 0165-0009 |
EISSN | 1573-1480 |
出版年 | 2018 |
卷号 | 150页码:181-194 |
文章类型 | Article |
语种 | 英语 |
国家 | Netherlands; Italy |
英文摘要 | Lake Baikal is the oldest, deepest, and most voluminous freshwater lake on Earth. Despite its enormous depth, episodically (almost twice a year) large amounts of surface, cold, and oxygenated water sink until the bottom of the lake due to thermobaric instability, with consequent effects on the ecology of the whole lake. A minimal one-dimensional model is used to investigate how changes in the main external forcing (i.e., wind and lake surface temperature) may affect this deep ventilation mechanism. The effect of climate change is evaluated considering the IPCC RCP8.5 and some idealized scenarios and is quantified by (i) estimating the mean annual downwelling volume and temperature and (ii) analyzing vertical temperature and dissolved oxygen profiles. The results suggest that the strongest impact is produced by alterations of wind forcing, while deep ventilation is resistant to rising lake surface temperature. In fact, the seasons when deep ventilation can occur can be shifted in time by lake warming, but not dramatically modified in their duration. Overall, the results show that Lake Baikal is sensible to climate change, to an extent that the ecosystem and water quality of this unique lacustrine system may undergo profound disturbances. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000448034000004 |
WOS关键词 | WATER RENEWAL ; CRATER LAKE ; AIR-TEMPERATURE ; FRESH-WATER ; SURFACE-TEMPERATURE ; MAXIMUM DENSITY ; OREGON ; MODEL ; STRATIFICATION ; SENSITIVITY |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/30015 |
专题 | 气候变化 |
作者单位 | 1.Univ Utrecht, Dept Phys, Inst Marine & Atmospher Res Utrecht, Princetonpl 5, NL-3584 CC Utrecht, Netherlands; 2.Univ Trento, Dept Civil & Environm Engn, Via Mesiano 77, I-38123 Trento, Italy |
推荐引用方式 GB/T 7714 | Piccolroaz, Sebastiano,Toffolon, Marco. The fate of Lake Baikal: how climate change may alter deep ventilation in the largest lake on Earth[J]. CLIMATIC CHANGE,2018,150:181-194. |
APA | Piccolroaz, Sebastiano,&Toffolon, Marco.(2018).The fate of Lake Baikal: how climate change may alter deep ventilation in the largest lake on Earth.CLIMATIC CHANGE,150,181-194. |
MLA | Piccolroaz, Sebastiano,et al."The fate of Lake Baikal: how climate change may alter deep ventilation in the largest lake on Earth".CLIMATIC CHANGE 150(2018):181-194. |
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