关于冰川融化,冰山,为什么不是额外的大气中水汽的讨论中提到全球变暖吗?- 江南体育网页版- - - - -地球科学堆江南电子竞技平台栈交换 最近30从www.hoelymoley.com 2023 - 07 - 07 - t07:04:39z //www.hoelymoley.com/feeds/question/2455 https://creativecommons.org/licenses/by-sa/4.0/rdf //www.hoelymoley.com/q/2455 3 关于冰川融化,冰山,为什么不是额外的大气中水汽的讨论中提到全球变暖吗? user128932 //www.hoelymoley.com/users/855 2014 - 09 - 08 - t06:03:03z 2014 - 12 - 14 - t05:52:10z < p >报道重大新闻网络,据说许多冰川和大冰山融化,导致大幅增加大气中的水蒸气的量。< / p > < p >现在很多水蒸气和越来越多的来自太阳的热量能力更强的风暴和更大的不平等分布在世界各地的水。因此,有更多的干旱在某些地方和大洪水。我认为这一切回到事实有数百万吨大气中更多的水蒸气。添加与太阳的加热,这将更强烈的风暴。< / p > < p >我的问题是,考虑到全球变暖的演讲和不稳定的天气为什么不是有一个巨大的额外的大气中的水蒸气上提到的新闻或其他电视节目? < / p > //www.hoelymoley.com/questions/2455/-/2457 # 2457 13 Vikram回答的关于冰川融化的冰山,为什么不是额外的大气中水汽的讨论中提到全球变暖吗? Vikram //www.hoelymoley.com/users/206 2014 - 09 - 08 - t12:37:24z 2014 - 12 - 14 - t05:52:10z < p >额外的水并不意味着额外的水蒸气。即使没有这些额外的水,水蒸气含量会增加,在当前的全球变暖。随着温度上升,使水变成蒸汽。< / p > < blockquote > < p >随着温度上升,蒸发增加大气中的水蒸气积累。作为一种温室气体,水会吸收更多的热量,进一步变暖的空气,导致更多的蒸发。当公司<子> 2 < /订阅>添加到大气中,作为温室气体温室效应。这将导致更多的水蒸发和温暖的空气向更高,稳定水平。所以的变暖有限公司<子> 2 < /订阅>有放大效应。水蒸气是气候系统事实上最大的正反馈(Soden 2005)。——< a href = " http://www.skepticalscience.com/water-vapor-greenhouse-gas-intermediate.htm " rel =“nofollow”>怀疑科学< / > < / p > < /引用> < p >强化水循环的因此,温度上升是一个产品,而不是水分。 Of course we need water to evaporate, but the increase in the water content doesn't correlate to increased water vapor. It might play some role locally in small ponds and seasonal rivers which get dry during summers, but on a global scale with most of our evaporation occurring over oceans (86% of global evaporation), its not significant enough.

So coming to your question. First of all its not like water vapor is never mentioned -

As global temperatures rise, the atmosphere then holds more moisture ... Therefore there is more water vapor available to fall as rain, snow. - thinkprogress.org - September 5

Global warming is moistening the atmosphere - The Guardian - August 13

And if you notice, all the recent news about melting glaciers has been in connected to some recent developments and observations in form of published papers at reputed journals. NASA even conducted a press conference explaining their latest research, which led to a series of news articles on the topic. So, i'm quite sure if there are some significant developments in terms of water vapor research, it will make the news as well.

//www.hoelymoley.com/questions/2455/-/2458 # 2458 13 回答大卫Hammen关于冰川融化,冰山,为什么不是额外的大气中的水蒸气的讨论中提到全球变暖吗? 大卫Hammen //www.hoelymoley.com/users/239 2014 - 09 - 08 - t13:11:57z 2014 - 09 - 08 - t13:11:57z < p >你的推理是有缺陷的。< / p >

The immediate effect of melting of the ice sheet is to add a small amount of water to the oceans (here small is relative to the huge amount of water already in the oceans). Over time, this small effect will result in sea level rise, currently estimated to be a rise of 50 to 200 centimeters by the end of this century.

At any one spot over the ocean, the rate at which water evaporates is a function of

  • The surface temperature of the water,
  • The surface temperature of the air,
  • The humidity content of the air, and
  • Surface winds.

Evaporation rate increases with increased air and water surface temperature, decreases as the relative humidity increases. Very calm air results in a thin layer of fully saturated air just above the water. This thin layer diffuses into the atmosphere as a whole. Diffusion is a slow process. A slight wind significantly increases transport from that surface layer. An even stronger wind keeps that surface layer from forming.

Integrating this local evaporation rate over all the waters of the Earth results in a global evaporation rate. Global warming on average increases both air and water temperatures, thereby increasing the evaporation rate.

Melting of the ice sheets does result in sea level rise, which in turn increases the surface area of the oceans, which in turn increases the global evaporation rate. This is a rather small effect compared to that of global warming. The sea level rise at any point in time is rather small. It only becomes significant on multi-decadal time scales. Moreover, even a two meter rise in sea level won't increase the surface area of the oceans by that much. Melting of all of the ice over Greenland and Antarctica most certainly would, but that won't be a problem for many hundreds of years. The immediate problem is what happens over the next 85 years or so, to the end of this century.

//www.hoelymoley.com/questions/2455/-/2470 # 2470 2 ChrisR回答的关于冰川融化的冰山,为什么不是额外的大气中水汽的讨论中提到全球变暖吗? ChrisR //www.hoelymoley.com/users/863 2014 - 09 - 10 - t04:25:00z 2014 - 09 - 10 - t04:25:00z

To the contrary that's how many people explain the historical rain & snowfall events around the world. As the poles melt more water is absorbed into the atmosphere, concentrated in the jet streams and eventually dumped thousands of miles away.

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