* *有很多控制,不仅体积的水在海洋世界。这些控件操作在不同时间和空间尺度上,以非线性方式和互动。因此,全球海平面(“绝对”)和地方(相对的)海平面上升在一些地方,会在别人。例如,* *绝对海平面正在上升(http://tidesandcurrents.noaa.gov/sltrends/sltrends.html),主要是因为极地冰川融化。但是变化的速度是不一样的,甚至(在一些地方海平面下降)(//www.hoelymoley.com/questions/4728/why-is-relative-sea-level-falling-in-hudson-bay): [!(海平面上升(NOAA)的利率)[1]][2]* *这怎么可能?* *(幅度均衡反弹!)(https://en.wikipedia.org/wiki/Post-glacial_rebound)加拿大北部大部分地区覆盖着一层厚厚的冰层在过去尘封。这个表是重足以抑制岩石圈(地壳)!自至上地幔(“软流层”)是塑料,它流出的说,可以这么说。几千年前的冰融化,但高度粘性软流层仍回流,推动地壳它。由于地壳上升,相对海平面下降。 ### What about global sea-level? Aside: Some people think changes in global sea-level, sometimes called eustasy, are synchronous and evenly distributed (see early literature on [sequence stratigraphy](https://en.wikipedia.org/wiki/Sequence_stratigraphy)). But, as I hope this tiny introduction will illustrate, it's more complicated than that... There are lots of other mechanisms that affect sea-level, not just isostacy. Here's a list of **L**ocal and **G**lobal effects I made for my thesis (Hall, M, 1997, *Sequence stratigraphy and early diagensis: the Sobrarbe Formation, Ainsa Basin, Spain*, Manchester); I've also [blogged about it](http://www.agilegeoscience.com/blog/2011/4/11/scales-of-sea-level-change.html): [![Things affecting sea-level][3]][3] Some effects, like changes in the shape of [the geoid](https://en.wikipedia.org/wiki/Geoid) and hydro-isostacy, affect the deep ocean too — changing the amount of water that, say, the Pacific can hold. Like all the others, these vary in time and space, and have complex relationships to the other effects in that table... so it's quite hard to model all this! [Footnote: There's lots more on Earth Science Stack exchange about sea-level.](//www.hoelymoley.com/questions/tagged/sea-level) [1]: http://i.stack.imgur.com/ItO7t.png [2]: http://tidesandcurrents.noaa.gov/sltrends/sltrends.html [3]: http://i.stack.imgur.com/hqb0B.png