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# # #的边界问题:问题是关于河流水流在地球的寒冷地区。无论是因为常年冬天也只是冷。通常,河的表层冻结和水下面继续自由流动。——问题是关于水的温度。因此,固体水的温度与这个问题无关。——这个问题只有淡水河流。所以咸的河流不是问题的一部分。# # #本身的问题:什么是流动的水的温度在冰冷的河吗?更准确地说,是水的温度低于0°C ?如果是这样,这是常见的吗? If it doesn't, does it get close to it at all? ###Attempted research to find the answer : I had in mind that the current allowed the water to stay liquid, but that might be wrong because there is no proof to it. However, [this answer](//www.hoelymoley.com/a/4361/7668) says: > For flowing water to freeze, the temperature would have to be > exceptionally cold. Which seems to agree that current [can lower the freezing point](http://sciencequestionswithsurprisinganswers.org/2013/12/09/can-water-stay-liquid-below-zero-degrees-celsius/). I found a great document about the temperature of the water within lake, but didn't find any reliable answer for rivers. <hr> **EDIT** I have come to believe that temperatures don't typically fall below 0 °C, based upon aggregating the following information... - [Rivers freeze completely once the heat lost exceeds the rate of water replacement](//www.hoelymoley.com/a/4359/7668). - [Most lakes and rivers don't freeze solid because water, ice, and snow are good insulators and poor conductors of heat. The portions of a lake or river that is exposed to the cold winter air freezes, and this ice insulates the water below from further rapid freezing.](http://www.greatlandofalaska.com/reference/faq.html#freezesolid) * Earth is warming the water from below. Using this, we can probably conclude that water won't cool down enough during it's journey down the river. Thus, the water would need to be already colder at the start of the journey. We know that the start is a lake with calm water. So, it's unlikely to happen because the lake would freeze completely and stop flowing out into the river.

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\ begingroup美元相关问题(事实上,插件,问是否常见,可能系密切给定问题的答案)。但是有一个完全不同的焦点(水是否可以达到低温液体vs是否可以冻结100%固体)……而且它只显示最后两句# 1回答解决可能的运动影响的(和模糊,不解释,数字,观察,等等)。所以我100%保持一个开放的后面。 \ endgroup美元
- - - - - -JeopardyTempest
2017年3月8日在具体
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\ begingroup美元 @Michael Jeodardy理解问题。的温度流动的水。也许问题的标题误导一些吗?将“最冷的水温是什么液体水的河流吗?”头衔是更好的吗? \ endgroup美元
- - - - - -AXMIM
2017年3月8日在20:48

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