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首页> 外文期刊>Oceanography >Environmental Properties of Coastal Waters in Mamala Bay, Oahu, Hawaii, at the Future Site of a Seawater Air Conditioning Outfall
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Environmental Properties of Coastal Waters in Mamala Bay, Oahu, Hawaii, at the Future Site of a Seawater Air Conditioning Outfall

机译：夏威夷瓦胡岛马马拉湾沿海水域的环境特性，在未来海水空调出水口的位置

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摘要

Shifting to renewable energy is an important global challenge, and there are many technologies available to help reduce carbon dioxide emissions. Seawater air conditioning (SWAG) is a renewable ocean thermal energy technology that will soon be implemented in Honolulu, Hawaii, on the island of Oahu. The SWAC system will operate by using cool water from 500 m depth in a heat exchange system and then will release this nutrient-rich water back into the ocean at a shallower depth of 100-140 m. The introduction of a plume of warmed. (but still relatively cool) deep seawater has unknown impacts on the tropical marine environment. Possible impacts include increases in primary production, changes in water chemistry and turbidity, and changes in the local food web. We used moored instruments and shipboard profiling to describe oceanographic parameters at the future SWAC effluent site. Parameters varied with the M2 internal tide, and denser water was correlated with higher nitrate, lower oxygen, and lower chlorophyll a (correlation coefficients 0.55, -0.58, and -0.75, respectively). The nitrate concentrations in the plume will be >30.0 mu mol kg(-1), while ambient concentrations range from <2.0-9.8 mu mol kg(-1). Irradiance levels at the effluent depth are sufficient to support net photosynthesis, and the effluent's location in the pycnocline could lead to rapid horizontal advection of the plume and expansion of the spatial scale of impacts. These baseline data provide an understanding of pre-impact conditions at the future SWAC site and will enable a more accurate environmental assessment. A comprehensive and well-resolved environmental monitoring effort during SWAC operation will be necessary to quantify and understand these impacts.
机译：转向可再生能源是一项重要的全球挑战，并且有许多可用的技术来帮助减少二氧化碳的排放。海水空调（SWAG）是一种可再生的海洋热能技术，很快将在夏威夷瓦胡岛的檀香山实施。 SWAC系统将通过在热交换系统中使用500 m深度的冷水进行操作，然后将这种营养丰富的水以100-140 m的较浅深度释放回海洋。引入羽状温热。 （但仍然相对凉爽）深海水对热带海洋环境的影响未知。可能的影响包括初级生产的增加，水化学和浊度的变化以及当地食物网的变化。我们使用系泊仪器和船上轮廓分析来描述未来的SWAC污水处理场的海洋学参数。参数随M2内部潮汐而变化，并且浓水与较高的硝酸盐，较低的氧气和较低的叶绿素a相关（分别为0.55，-0.58和-0.75）。羽流中的硝酸盐浓度将> 30.0 mol mol kg（-1），而环境浓度范围在<2.0-9.8 mol mol kg（-1）。出水深度的辐照水平足以支持净光合作用，出水在比多菌灵中的位置可能导致羽流快速水平对流并扩大影响的空间范围。这些基准数据可帮助您了解未来SWAC站点的撞击前状况，并将使环境评估更加准确。在SWAC运营期间，有必要进行全面而有力的环境监测工作，以量化和了解这些影响。

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    《Oceanography》 |2015年第2期|230-239|共10页
  • 作者

    Comfort Christina M.; McManus Margaret A.; Clark S. Jeanette; Karl David M.; Ostrander Chris E.;

  • 作者单位

    Univ Hawaii, Sch Ocean & Earth Sci & Technol, Dept Oceanog, Honolulu, HI 96822 USA;

    Univ Hawaii, Sch Ocean & Earth Sci & Technol, Dept Oceanog, Honolulu, HI 96822 USA;

    Univ Hawaii, Joint Inst Marine & Atmospher Res, Honolulu, HI 96822 USA;

    Univ Hawaii Manoa, Ocean Sci, Honolulu, HI 96822 USA|Univ Hawaii Manoa, Oceanog, Honolulu, HI 96822 USA|Daniel K Inouye Ctr Microbial Oceanog Res & Educ, Honolulu, HI USA;

    Univ Hawaii, Sch Ocean & Earth Sci & Technol, Honolulu, HI 96822 USA;

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