Review of Artificial Downwelling for Mitigating Hypoxia in Coastal Waters
Review of Artificial Downwelling for Mitigating Hypoxia in Coastal Waters
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DOI：
10.3390/w12102846
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发表时间：
2020-10
期刊：
影响因子：
3.4
通讯作者：
Shuo Liu;L. Zhao;Canbo Xiao;W. Fan;Yong Cai;Yiwen Pan;Ying Chen
中科院分区：
文献类型：
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作者：
Shuo Liu;L. Zhao;Canbo Xiao;W. Fan;Yong Cai;Yiwen Pan;Ying Chen
缺氧正在成为世界许多地区沿海沃茨的一个严重问题。人工下沉流是基于地球工程的适应备选办法之一，被认为是缓解沿海沃茨缺氧的有效手段。由太阳能、风能、波浪能或潮汐能等绿色能源提供动力的人工下沉流可以在千米尺度上形成补偿性下沉流，这有利于密度跃层以下的通风，从而减轻底层水中的缺氧。在本文中，我们回顾和评估的技术，数值和实验方面的人工下降流在世界各地，以及其潜在的环境影响。提出了一些基本原则，并为每个类别提供了评估和建议。最后，对人工下降流的进一步野外研究，特别是长期野外研究提出了一些建议。
Hypoxia is becoming a serious problem in coastal waters in many parts of the world. Artificial downwelling, which is one of the geoengineering-based adaptation options, was suggested as an effective means of mitigating hypoxia in coastal waters. Artificial downwelling powered by green energy, such as solar, wind, wave, or tidal energy, can develop a compensatory downward flow on a kilometer scale, which favors below-pycnocline ventilation and thus mitigates hypoxia in bottom water. In this paper, we review and assess the technical, numerical, and experimental aspects of artificial downwelling all over the world, as well as its potential environmental effects. Some basic principles are presented, and assessment and advice are provided for each category. Some suggestions for further field-based research on artificial downwelling, especially for long-term field research, are also given.