全球海平面上升将如何分布?- 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 - 09 - t23:00:57z //www.hoelymoley.com/feeds/question/10876 https://creativecommons.org/licenses/by-sa/4.0/rdf //www.hoelymoley.com/q/10876 15 全球海平面上升将如何分布? f.thorpe //www.hoelymoley.com/users/543 2017 - 07 - 21 - t06:05:56z 2021 - 07 - 12 - t03:41:03z < p >从冰川融化海平面上升不会均匀分布在全球各地。然而,我还不清楚什么地方会有极端最高和最低的海平面上升的变化。我曾认为,一般来说,热带纬度最低海平面上升,和极地地区海平面上升。然而,当我把< a href = " https://upload.wikimedia.org/wikipedia/commons/5/5e/M2_tidal_constituent.jpg " rel = " noreferrer " >这张地图< / >的潮汐变化,并考虑对土地质量的变化(< a href = " //www.hoelymoley.com/questions/9607/dataset-for-expected-sea-level-rise-in-case-of-massive-meltdowns-greenland-anta " >当冰川融化< / >),看来,海平面上升将会复杂。我看过< a href = " http://www.soest.hawaii.edu/coasts/sealevel/MSL_Map_MERGED_Global_IB_RWT_NoGIA_Adjust.png " rel = " noreferrer " >这张图片< / >最近的海平面变化,但我不认为改变几米将继续遵循这一趋势。< / p > < p >全球海平面上升将如何分布? < / p > //www.hoelymoley.com/questions/10876/-/10877 # 10877 5 Communisty回答的全球海平面上升将如何分布? Communisty //www.hoelymoley.com/users/6465 2017 - 07 - 21 - t06:36:23z 2017 - 07 - 21 - t09:34:23z < p >海平面将上升均匀由于热膨胀的海洋,但你是对的,冰川使事情更加复杂。基本上,当一个巨大的冰川融化它的引力是海洋中重新分配。例如,如果所有的南极冰融化海平面将上升,但最大的北极和最小的南部。< / p > < p >目前也有上升的地球地壳的地区被最后一个冰河时代冰川下推。因此,当前地球冰川融化将逐渐上升。海底地球上升时它迫使其他地方的水流均匀。< / p > < p >也改变天气系统变化影响水的盛行风将包,但这种影响是非常小的。< / p > < p >不幸的是所有的预测地图我发现,这样的互动一个< a href = " http://geology.com/sea-level-rise/ " rel = " nofollow noreferrer " > geology.com < / >,不考虑这些因素。< / p > < p >一些文章更多信息:< a href = " http://ocean.si.edu/sea-level-rise " rel = " nofollow noreferrer " >海洋门户< / >,< a href = " http://e360.yale.edu/features/the_secret_of_sea_level_rise_it_will_vary_greatly_by_region " rel = " nofollow noreferrer " >耶鲁< / >。< / p > //www.hoelymoley.com/questions/10876/-/10880 # 10880 8 arkaia回答的全球海平面上升将如何分布? arkaia //www.hoelymoley.com/users/111 2017 - 07 - 21 - t12:41:55z 2017 - 07 - 21 - t15:09:25z < p >海平面上升(SLR)是空间统一。卫星派生的单反,你现在是一个很好的例子空间响应的复杂性。探索的空间特征的观察的一个好方法是使用永久性的数据服务平均海平面(< A href = " http://www.psmsl.org " rel = " noreferrer " > PSMSL < / >)。他们有一个良好的互动< a href = " http://www.psmsl.org/products/trends/ " rel = " noreferrer " > < / >映射到调查自1900年以来全球平均海平面趋势。时间限制可以调整看到变化取决于您使用的数据。< a href = " https://i.stack.imgur.com/xIz9r.jpg " rel = " noreferrer " > < img src = " https://i.stack.imgur.com/xIz9r.jpg " alt = " PSMSL " > < / > PSMSL来源。< / p > < p >从他们的网站:< / p > < blockquote > < p >最新的联合国政府间气候变化专门委员会报告,发表于2013年,发现“很可能意味着全球平均海平面上升的速度是1.7(1.5 - 1.9)毫米/年1901年至2010年,2.0 mm(1.7 - 2.3) /年1971年和2010年之间和3.2[2.8 - 3.6]毫米/年1993年和2010年之间。潮汐计和卫星高度计数据是一致的关于后者的高期”(< a href = " http://www.climatechange2013.org " rel = " noreferrer " > www.climatechange2013.org < / >)。< / p > < /引用> < p >率是全球平均水平但它空间变化很大。地球上没有地方需要这个平均值(一些)。 In some places, sea level is rising by more than the global average while in others it is decreasing. There are many causes to for these local differences in sea level.

The regional differences are caused by changes in many variables. For instance, there wind patterns change in annual and decadal scales. As wind changes, wind-driven ocean currents are modified, which modify sea level slopes (e.g., Gulf Stream causes sea elevations gradients). Temperature changes in the oceans are also spatially variable resulting in steric sea level changes (local difference in density and volume change). Additionally, with ice sheets melt, there are changes in pressure over the crust modifying sea level. Other very local effects such as earthquakes, groundwater extraction, and subsidence of the land will cause apparent change of sea level at that location.

In general, the areas near the poles have a negative trend (sea level is dropping, not rising) because of the Glacial Isostatic Adjustment (GIA) as the crust is still rebounding from the previous glaciation. In mid-latitudes, on the other hand the sea level rise rates are maximum. Of course, there are local effects because of many of the forcings mentioned above.

//www.hoelymoley.com/questions/10876/-/11955 # 11955 10 Jan Doggen回答的全球海平面上升将如何分布? Jan Doggen //www.hoelymoley.com/users/595 2017 - 07 - 29 - t19:18:20z 2017 - 07 - 29 - t19:18:20z < p >有很多因素,所以这是值得另一个答案。结束时他/她的回答< a href = " //www.hoelymoley.com/a/10880/595 " > < / > < em > aretxabaleta < / em >: < / p > < blockquote > < p >一般来说,两极附近地区有负面趋势(海平面下降,而非上升),因为冰川的地壳均衡调整(GIA)仍是反弹从先前的冰川作用。在中纬度地区,另一方面海平面上升利率最大< / p > < /引用> < p >然而,在这些位置有一个更强的效应:< / p > < p >冰群众自己施加很大的引力周围的水,导致<强> < /强>降低周围的海平面的群众(格陵兰岛,南极洲)当冰融化。< br / >这似乎违反直觉的,是最好的解释了通过观察会发生什么当冰块的生长:< / p > < p >增长质量的引力拉水。由此引起的海平面上升的边缘冰块因此< em > < / em >比海面升降(全球、制服、全世界)海平面降低,是因为水进入冰。附近的效果是冰块,实际上海平面上升,远离它比预期的要快。< / p > < p >冰融化时相反的情况:海平面接近冰质量将会下降,海平面将上升超过很远“预期”。< / p > < p >给这一些实际的数字:< br / >相对应的海面升降海平面上升格陵兰岛和南极西部冰盖的融化既约。6米。< br / >在欧洲(我住在荷兰)然而,格陵兰岛融化会导致大约只有。3米上升,因为这是相对较近,但西南极洲融化会导致额外的水像8 - 9米。< / p > < p >这幅画显示了< em > < / em >相对效应计算水西南极洲。 You should read the numbers as a multiplication factor to apply to amount of sea level rise in the case of a uniform distribution.

enter image description here

Sea level change associated with a uniform thinning of the West Antarctic Ice Sheet (WAIS). Their result, reproduced in Fig. 1(a), was normalized by the eustatic sea level change (i.e. the change computed assuming that the meltwater entered the present-day ocean uniformly). [...] The map shows a peak sea level rise greater than 25 per cent above the eustatic value in the north Pacific and more than 20 per cent above the eustatic in the north Atlantic and Indian Oceans. In addition, the sea level fall is greater than five times the eustatic amplitude in the ocean adjacent to the West Antarctic.

On the robustness of predictions of sea level fingerprints
J. X. Mitrovica, N. Gomez, E. Morrow, C. Hay, K. Latychev, M. E. Tamisiea
14 October 2011
DOI: 10.1111/j.1365-246X.2011.05090.x

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