安默西湖的混合状态

IF 1.2 4区 地球科学 Q3 GEOGRAPHY
Erde Pub Date : 2016-12-30 DOI:10.12854/ERDE-147-24
Thomas Bueche
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引用次数: 4

摘要

气候变化影响了湖泊的循环,并已经在几个地点引起了混合状态的变化。德国的阿默西湖(Ammersee)的前高山通常是二叠纪的,但很少有完全的冰盖。此外,它在过去可能显示出一些单一年份。基于水体温度(WT)和溶解氧(DO)垂直剖面资料,对1986 - 2014年湖泊的混合行为进行了可视化分析。混合13的分类描述了22个二聚体年和8个单聚体年,这证实了湖泊中有14个偶然单聚体的假设。混合模式没有明显的变化趋势。15通过从垂直DO分布中导出混合深度,可以发现一年没有完全翻转(分型)。结果表明,直到2014年,安默西湖17号湖没有出现政权转移。考虑到单一年的高比例和可能发生的混合年,可以假设湖泊的混合模式将因预测的未来气候变化而改变。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The mixing regime of Lake Ammersee
Climate change affects the circulation of lakes and has already induced mixing regime shifts for 9 several sites. The pre-alpine Lake Ammersee, Germany, is usually dimictic, but exhibits rarely a 10 complete ice cover. Furthermore, it has potentially shown some monomictic years in the past. Based 11 on vertical profile data of water temperatures (WT) and dissolved oxygen (DO) the mixing behavior 12 of the lake is visualized and analyzed for the period of 1986 – 2014. The classification of mixing 13 depicts 22 dimictic years and eight monomictic years, which approves the assumption of of 14 occasional monomixis in the lake. No significance of a trend of shift in mixing pattern can be found. 15 By also deriving also the mixing depths from the vertical DO distribution, one year without complete 16 overturn (meromictic) is detected. The results show that no regime shift has set in for Lake 17 Ammersee until 2014. Considering the high percentage of monomictic years and the potential 18 occurrence of meromixis, it can be assumed that the lake’s mixing pattern will alter due to predicted 19 climate change in the future.
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来源期刊
Erde
Erde GEOGRAPHY, PHYSICAL-GEOSCIENCES, MULTIDISCIPLINARY
CiteScore
2.90
自引率
6.20%
发文量
0
审稿时长
>12 weeks
期刊介绍: DIE ERDE is a publication of the Geographical Society of Berlin DIE ERDE is a scientific journal in Geography, with four issues per year with about 100 pages each. It covers all aspects of geographical research, focusing on both earth system studies and regional contributions. DIE ERDE invites contributions from any subfield of both Physical and Human Geography as well as from neighbouring disciplines.
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