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- Deep ocean water (DOW) is the name for cold, salty water found deep below the surface of Earth's oceans. Ocean water differs in temperature and salinity. Warm surface water is generally saltier than the cooler deep or polar waters; in polar regions, the upper layers of ocean water are cold and fresh. Deep ocean water makes up about 90% of the volume of the oceans. Deep ocean water has a very uniform temperature, around 0-3 °C, and a salinity of about 3.5% or, as oceanographers state, 35 ppt (parts per thousand). In specialized locations such as the Natural Energy Laboratory of Hawaii (NELHA) ocean water is pumped to the surface from approximately 900 metres (2,952 feet) deep for applications in research, commercial and pre-commercial activities. DOW is typically used to describe ocean water at sub-thermal depths sufficient to provide a measurable difference in water temperature. When deep ocean water is brought to the surface, it can be used for a variety of things. Its most useful property is its temperature. At the surface of the Earth, most water and air is well above 3 °C. The difference in temperature is indicative of a difference in energy. Where there is an energy gradient, skillful application of engineering can harness that energy for productive use by humans. The simplest use of cold water is for air conditioning: using the cold water itself to cool air saves the energy that would be used by the compressors for traditional refrigeration. Another use could be to replace expensive desalination plants. When cold water passes through a pipe surrounded by humid air, condensation results. The condensate is pure water, suitable for humans to drink or for crop irrigation. Via a technology called ocean thermal energy conversion, the temperature difference can be turned into electricity. (en)
- Air laut dalam (ALD) (bahasa Inggris: Deep Ocean Water (DOW)) atau sering disebut dengan Deep Sea Water (DWS) merupakan air laut yang berada pada kedalaman 200 meter lebih dari bawah permukaan air laut. Air laut pada di bagian air laut dalam dengan kadar garam yang lebih rendah jika dibandingkan dengan kadar garam pada air laut permukaan. Temperatur dan salinitas air laut tergantung pada kedalamannya. Kurang lebih 95% dari jumlah air laut di Bumi merupakan air laut dalam. Sekarang air laut dalam telah banyak digunakan untuk kebutuhan industri. Air laut dalam digunakan untuk industri pangan, agrikultur, farmasi, dan industri kosmetik. Baru-baru ini penelitian yang memanfaatkan air laut dalam telah digencarkan karena air laut dalam dapat diaplikasikan di berbagai industri. Air laut dalam dinilai sangat besar jika ditinjau dari ketersediaanya di Bumi. (in)
- 해양심층수(海洋深層水)는 수심 200미터 아래의 깊은 바다에 있는 물이다. 표층에 있는 바닷물과는 다른 성질을 가지고 있다. 줄임말로 심층수라고도 한다. 해양심층수는 지구상의 가장 깨끗한 식수원이기도 하기 때문에 일본에서는 식음료 등 관련 상품이 큰 시장을 형성하고 있고, 세계 각국에서는 해양심층수 연구에 박차를 가하고 있는 실정이다. 대한민국 역시 정부 차원에서 많은 투자를 하고 있다. (ko)
- 海洋深層水（かいようしんそうすい、deep ocean water:DOW, deep sea water）または単に深層水とは、海洋学の用語でもあるが、それについては本文で詳述する。非学術的・産業利用上の定義では、深度200メートル以深の深海に分布する、表層とは違った特徴を持つ海水のこととされ、海水の95%以上は海洋深層水にあたる。 (ja)
- 深層海水（deep sea water，簡稱DSW。又名deep ocean water DOW）稱為深層水，日本稱為海洋深層水(かいよしんいそうすい)。深層海水係指200公尺以下與表層海水之物理、化學特徵不同的海水。地球上約95%為深層海水。前述定義為產業利用上之定義，與海洋學之定義不同。 (zh)
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- 해양심층수(海洋深層水)는 수심 200미터 아래의 깊은 바다에 있는 물이다. 표층에 있는 바닷물과는 다른 성질을 가지고 있다. 줄임말로 심층수라고도 한다. 해양심층수는 지구상의 가장 깨끗한 식수원이기도 하기 때문에 일본에서는 식음료 등 관련 상품이 큰 시장을 형성하고 있고, 세계 각국에서는 해양심층수 연구에 박차를 가하고 있는 실정이다. 대한민국 역시 정부 차원에서 많은 투자를 하고 있다. (ko)
- 海洋深層水（かいようしんそうすい、deep ocean water:DOW, deep sea water）または単に深層水とは、海洋学の用語でもあるが、それについては本文で詳述する。非学術的・産業利用上の定義では、深度200メートル以深の深海に分布する、表層とは違った特徴を持つ海水のこととされ、海水の95%以上は海洋深層水にあたる。 (ja)
- 深層海水（deep sea water，簡稱DSW。又名deep ocean water DOW）稱為深層水，日本稱為海洋深層水(かいよしんいそうすい)。深層海水係指200公尺以下與表層海水之物理、化學特徵不同的海水。地球上約95%為深層海水。前述定義為產業利用上之定義，與海洋學之定義不同。 (zh)
- Deep ocean water (DOW) is the name for cold, salty water found deep below the surface of Earth's oceans. Ocean water differs in temperature and salinity. Warm surface water is generally saltier than the cooler deep or polar waters; in polar regions, the upper layers of ocean water are cold and fresh. Deep ocean water makes up about 90% of the volume of the oceans. Deep ocean water has a very uniform temperature, around 0-3 °C, and a salinity of about 3.5% or, as oceanographers state, 35 ppt (parts per thousand). (en)
- Air laut dalam (ALD) (bahasa Inggris: Deep Ocean Water (DOW)) atau sering disebut dengan Deep Sea Water (DWS) merupakan air laut yang berada pada kedalaman 200 meter lebih dari bawah permukaan air laut. Air laut pada di bagian air laut dalam dengan kadar garam yang lebih rendah jika dibandingkan dengan kadar garam pada air laut permukaan. Temperatur dan salinitas air laut tergantung pada kedalamannya. Kurang lebih 95% dari jumlah air laut di Bumi merupakan air laut dalam. (in)
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- Deep ocean water (en)
- Air laut dalam (in)
- 해양심층수 (ko)
- 海洋深層水 (ja)
- 海洋深層水 (zh)
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