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Cabbeling is when two separate water parcels mix to form a third which sinks below both parents. The combined water parcel is denser than the original two water parcels. The two parent water parcels may have the same density, but they have different properties; for instance, different salinities and temperatures. Seawater almost always gets denser if it gets either slightly colder or slightly saltier. But medium-warm, medium-salty water can be denser than both fresher, colder water and saltier, warmer water; in other words, the equation of state for seawater is monotonic, but non-linear. See diagram.

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  • Cabbeling (en)
  • 混和增密 (zh)
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  • 混和增密(英語:Cabbeling),是海水運動所造成的現象。當兩不同溫度、鹽度但密度相近的水體充份混合後,混合水之溫度、鹽度將為二者之平均,但密度則會增大,進而導致新的水體下沉。 除此之外,因為純水在4 °C (39 °F)的時候密度最高,所以在淡水的環境下也有可能發生混和增密作用。例如2 °C的水與 6 °C 的水充分混和後,新的水就會是4 °C,使其下沉。實際上,當浮在水上的冰融化後,所融出的低溫水便會與下方的水發生混和增密作用而下沉。 (zh)
  • Cabbeling is when two separate water parcels mix to form a third which sinks below both parents. The combined water parcel is denser than the original two water parcels. The two parent water parcels may have the same density, but they have different properties; for instance, different salinities and temperatures. Seawater almost always gets denser if it gets either slightly colder or slightly saltier. But medium-warm, medium-salty water can be denser than both fresher, colder water and saltier, warmer water; in other words, the equation of state for seawater is monotonic, but non-linear. See diagram. (en)
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  • Cabbeling is when two separate water parcels mix to form a third which sinks below both parents. The combined water parcel is denser than the original two water parcels. The two parent water parcels may have the same density, but they have different properties; for instance, different salinities and temperatures. Seawater almost always gets denser if it gets either slightly colder or slightly saltier. But medium-warm, medium-salty water can be denser than both fresher, colder water and saltier, warmer water; in other words, the equation of state for seawater is monotonic, but non-linear. See diagram. Cabbeling may also occur in fresh water, since pure water is densest at about 4 °C (39 °F). A mixture of 1 °C water and 6 °C water, for instance, might have a temperature of 4 °C, making it denser than either parent. Ice is also less dense than water, so although ice floats in warm water, meltwater sinks in warm water. The densification of the new mixed water parcel is a result of a slight contraction upon mixing; a decrease in volume of the combined water parcel. A new water parcel that has the same mass, but is lower in volume, will be denser. Denser water sinks or downwells in the otherwise neutral surface of the water body, where the two initial water parcels originated. (en)
  • 混和增密(英語:Cabbeling),是海水運動所造成的現象。當兩不同溫度、鹽度但密度相近的水體充份混合後,混合水之溫度、鹽度將為二者之平均,但密度則會增大,進而導致新的水體下沉。 除此之外,因為純水在4 °C (39 °F)的時候密度最高,所以在淡水的環境下也有可能發生混和增密作用。例如2 °C的水與 6 °C 的水充分混和後,新的水就會是4 °C,使其下沉。實際上,當浮在水上的冰融化後,所融出的低溫水便會與下方的水發生混和增密作用而下沉。 (zh)
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