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| DOI | 10.1029/2023GL106985 |
| Regime Shifts in Lake Oxygen and Temperature in the Rapidly Warming High Arctic | |
| 发表日期 | 2024 |
| ISSN | 0094-8276 |
| EISSN | 1944-8007 |
| 起始页码 | 51 |
| 结束页码 | 6 |
| 卷号 | 51期号:6 |
| 英文摘要 | Global warming is destabilizing the cryosphere, with consequences for glaciers, permafrost, sea ice and lake ice. Polar lakes have short ice-free seasons, and small changes in ice cover duration have the potential to provoke alterations to ecosystem structure. However, these lakes are understudied, and the consequences for mixing regimes, thermal structures and biogeochemical processes remain unclear. We measured three annual cycles of dissolved oxygen, temperature and specific conductivity in a lake at similar to 83 degrees N to investigate limnological processes and their interannual variability. There were sharp interannual contrasts in lake dynamics, with state shifts in mixing, stratification and oxygen regimes due to air temperature variability and meteorological events. We also observed unusual thermal profiles that were associated with solute gradients. These striking differences underscore the sensitivity of high Arctic lakes to interannual variations in meteorological forcing, and their susceptibility to regime shifts in response to ongoing global change. |
| 英文关键词 | climate change; oxygen dynamics; stratification; high Arctic lakes; annual cycles; lake ice cover |
| 语种 | 英语 |
| WOS研究方向 | Geology |
| WOS类目 | Geosciences, Multidisciplinary |
| WOS记录号 | WOS:001185440900001 |
| 来源期刊 | GEOPHYSICAL RESEARCH LETTERS
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/291692 |
| 作者单位 | Laval University; Laval University; Laval University; University of California System; University of California Santa Barbara; University of California System; University of California Santa Barbara; Carleton University; Laval University |
| 推荐引用方式 GB/T 7714 | . Regime Shifts in Lake Oxygen and Temperature in the Rapidly Warming High Arctic[J],2024,51(6). |
| APA | (2024).Regime Shifts in Lake Oxygen and Temperature in the Rapidly Warming High Arctic.GEOPHYSICAL RESEARCH LETTERS,51(6). |
| MLA | "Regime Shifts in Lake Oxygen and Temperature in the Rapidly Warming High Arctic".GEOPHYSICAL RESEARCH LETTERS 51.6(2024). |
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