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DOI | 10.1007/s00382-018-4094-6 |
Forecasting the evolution in the mixing regime of a deep subalpine lake under climate change scenarios through numerical modelling (Lake Maggiore, Northern Italy/Southern Switzerland) | |
Fenocchi, Andrea1; Rogora, Michela2; Sibilla, Stefano1; Ciampittiello, Marzia2; Dresti, Claudia2 | |
2018-11-01 | |
发表期刊 | CLIMATE DYNAMICS |
ISSN | 0930-7575 |
EISSN | 1432-0894 |
出版年 | 2018 |
卷号 | 51页码:3521-3536 |
文章类型 | Article |
语种 | 英语 |
国家 | Italy |
英文摘要 | The impact of air temperature rise is eminent for the large deep lakes in the Italian subalpine district, climate change being caused there by both natural phenomena and anthropogenic greenhouse-gases (GHG) emissions. These oligomictic lakes are experiencing a decrease in the frequency of winter full turnover and an intensification of stability. As a result, hypolimnetic oxygen concentrations are decreasing and nutrients are accumulating in bottom water, with effects on the whole ecosystem functioning. Forecasting the future evolution of the mixing pattern is relevant to assess if a reduction in GHG releases would be able to revert such processes. The study focuses on Lake Maggiore, for which the thermal structure evolution under climate change in the 2016-2085 period was assessed through numerical simulations, performed with the General Lake Model (GLM). Different prospects of regional air temperature rise were considered, given by the Swiss Climate Change Scenarios CH2011. Multiple realisations were performed for each scenario to obtain robust statistical predictions, adopting random series of meteorological data produced with the Vector-Autoregressive Weather Generator (VG). Results show that a reversion in the increasing thermal stability would be possible only if global GHG emissions started to be reduced by similar to 2020, allowing an equilibrium mixing regime to be restored by the end of the twenty-first century. Otherwise, persistent lack of complete-mixing, severe water warming and extensive effects on water quality are to be expected for the centuries to come. These projections can be extended to the other lakes in the subalpine district. |
英文关键词 | Climate change impact Inland waters warming Hydrodynamic modelling Full turnover Swiss climate change scenarios CH2011 Weather generator |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000447366100020 |
WOS关键词 | CENTRAL-EUROPEAN LAKE ; TEMPERATURE PROFILES ; SENSITIVITY-ANALYSIS ; WATER TEMPERATURES ; THERMAL STRUCTURE ; WARMER CLIMATE ; LAGO MAGGIORE ; PHYTOPLANKTON ; VARIABILITY ; SIMULATION |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | 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/35559 |
专题 | 气候变化 |
作者单位 | 1.Univ Pavia, Dept Civil Engn & Architecture, Via Ferrata 3, I-27100 Pavia, Italy; 2.CNR, Inst Ecosyst Study, Largo Tonolli 50, I-28922 Verbania, Italy |
推荐引用方式 GB/T 7714 | Fenocchi, Andrea,Rogora, Michela,Sibilla, Stefano,et al. Forecasting the evolution in the mixing regime of a deep subalpine lake under climate change scenarios through numerical modelling (Lake Maggiore, Northern Italy/Southern Switzerland)[J]. CLIMATE DYNAMICS,2018,51:3521-3536. |
APA | Fenocchi, Andrea,Rogora, Michela,Sibilla, Stefano,Ciampittiello, Marzia,&Dresti, Claudia.(2018).Forecasting the evolution in the mixing regime of a deep subalpine lake under climate change scenarios through numerical modelling (Lake Maggiore, Northern Italy/Southern Switzerland).CLIMATE DYNAMICS,51,3521-3536. |
MLA | Fenocchi, Andrea,et al."Forecasting the evolution in the mixing regime of a deep subalpine lake under climate change scenarios through numerical modelling (Lake Maggiore, Northern Italy/Southern Switzerland)".CLIMATE DYNAMICS 51(2018):3521-3536. |
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