如果海洋更深-地球科学堆栈交换江南电子竞技平台江南体育网页版 最近30从www.hoelymoley.com 2023 - 07 - 07 - t16:04:36z //www.hoelymoley.com/feeds/question/7077 https://creativecommons.org/licenses/by-sa/4.0/rdf //www.hoelymoley.com/q/7077 1 如果海洋更深 JohnWDailey //www.hoelymoley.com/users/4985 2015 - 12 - 14 - t01:08:21z 2015 - 12 - 14 - t09:45:56z < p >回家,世界海洋的平均深度和地中海如下:< / p > < p >大西洋——< / p > < p >太平洋3926米- 4028米< / p > < p >印度——< / p > < p >北极3963米- 1205米< / p > < p >——4500米南部地中海< / p > < p > < / p > < p >——1500米在这个地球交替,平均深度如下:< / p > < p >大西洋——< / p > < p >太平洋4679米- 6896米印度——< / p > < p > < / p > < p > 3295米北极——< / p > < p > 3460米——2735米南部地中海——< / p > < p > < / p > < p > 3767米深度的变化如何影响全球气候和洋流?< / p > //www.hoelymoley.com/questions/7077/-/7081 # 7081 2 答案由userLTK如果海洋更深 userLTK //www.hoelymoley.com/users/2717 2015 - 12 - 14 - t09:45:56z 2015 - 12 - 14 - t09:45:56z < p >可能不是你正在寻找的答案但是最明显的效果将是一个下沉的土地和海洋的扩散。花岗岩、玄武岩、冰川和海洋是在某种意义上,平衡重量的规模巨大的质量和地球的引力。通过替换一英里左右的玄武岩岩石与水海洋底部的重量不平衡,大陆即将沉没,类似于一些土地目前< a href = " https://en.wikipedia.org/wiki/Post-glacial_rebound " rel = " nofollow noreferrer " > < / >反弹从最后一个冰河时代。随着时间的净效应将是几百米的海平面上升如果海洋变得更深。< / p > < p >但我怀疑不是你正在寻找你的问题。你可能想知道天气和海洋温度效应。这有点困难。我可以给一个答案。< / p >

Larger oceans would mean more dissolved atmospheric gas. I had no luck finding good estimates as to how much atmosphere is dissolved in the deep oceans overall, I was able to do a very crude calculation using this website and estimates that there's about 50 times as much CO2 in the Oceans as there is in the atmosphere. Now, my estimate is hugely crude, but there may be an entire Earth's atmosphere, both Oxygen and Nitrogen trapped in the oceans. The deep oceans hold a fair bit of Oxygen and Nitrogen so by making the oceans bigger, the effect might be a thinner atmosphere. 10% thinner? 20%? 5% I couldn't guess the amount, but something somewhere in that range seems probable.

Regarding deep ocean currents, it's difficult (perhaps impossible) to say how currents might change. In general, ocean currents, while not simple, seem to follow fairly simple patterns. My guess is that the amount of depth you've added isn't enough to change that, though if you were to make oceans significantly deeper, you might get a few layers of circulation, not the three, sometimes four layers we currently have. (see pictures).

http://oceanography.earthednet.org/Mini_Studies/Deep_Ocean_Circulation/Deep_Ocean_Circulation_files/image009.jpg

enter image description here

Source of pictures

Larger, deeper oceans would also provide a greater heat sink that would take longer to warm up or cool down with the rise and fall of glacial periods. It's possible that there would be no glacial periods with these changes, but predictions get kind of speculative there.

That's all I can think of. I invite corrections and additions.

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