编辑-地球科学江南体育网页版堆栈交换江南电子竞技平台

你不是登录。你的编辑将被放置在一个队列,直到同行评议。

我们欢迎编辑,使读者更容易理解和更有价值。因为社区成员审查编辑,请尽量使文章更好比你怎么发现,例如,通过修正语法或添加额外的资源和超链接。

牧师

在2018年有极地漩涡吗?

在2018年有极地漩涡吗?在什么日期?

我想看看天气看起来像在这些日期:https://www.youtube.com/watch?v=FPuDPxK88g0

是的,我知道。你会认为我可以谷歌它,它将会在页面上的第一件事。但是没有。

回答

首先的问题是不适当的标题。极地漩涡*总是*作为解释存在于这个URL -[极地漩涡是什么?][1]。真正的问题在于极地漩涡分手在两极和较小的漩涡朝赤道方向移动。在2018年2月的极地涡流分离高大气中由于[f事件][2]。如果我们看一看它从GFS预报的数据段,(2018年2月2日10 hPa风数据)[3],然后几天后,(2018年2月12日10 hPa风数据)[4]。[内容属于国家天文台的雅典,希腊][5]证实它在youtube视频——极地漩涡分裂[6]。我的助理为更大的公众创建科普视频想出了一个外行的观点极地涡旋的youtube视频,(解释+极涡分裂西南偏南约)[7]的关键点在西蒙•克拉克的平流层的突然变暖的视频中可以看到GFS预报数据——(空气温度在极地漩涡分裂10 hPa][8],[气温极涡分裂后][9]有一个40摄氏度的平流层的空气变暖10 hPa在一些地方。在时间范围内(3 - 4天),相当引人注目,最终效果是“感觉”表面的水平。尽管这仍然是一个问题背后的机制深入研究全球范围造成的影响是天气寒冷的波通过欧洲被问到这个问题-[每日温度变化去了哪里?][10]。最后我不确定影响我们站但我相信加拿大西部和欧洲的影响。 **UPDATE** With NOAA partially restoring their database and their website the images are available now. I am displaying the 10 hPa air temperature for two different dates. One is before the SSW event (9th February 2018) and another one after the SSW event (13th February 2018). The stereographic projection is over the northern hemisphere [![enter image description here][11]][11] [![enter image description here][12]][12] As one can make out over large areas of the North Pole the air temperature at the 10 hPa has increased by around 40-50 degree Kelvin and the colder air has been displaced equatorwards. Unlike the GFS forecast images shown earlier these temperature values are the mean values averaged over a single day and are therefore more representative than a single time associated with the GFS data. Finally the vector wind at the 10 hPa levels on both those two days and you can see clearly the split vortices in this one [![enter image description here][13]][13] [![enter image description here][14]][14] Looking at the literature for the polar vortex splits it appears that they also use the geopotential height increase over the poles to indicate the impact of a SSW. The first image is prior to a SSW which indicates the presence of a stable polar vortex(lowered geopotential height) [![enter image description here][15]][15] The second image is after a SSW and one that indicates the instability of the polar vortex(it's weakened state) and split vortices over Western Canada and Northern Europe. (Geopotential height increase over the poles). [![enter image description here][16]][16] **Copyright Owner for NCAR NOAA images** [NOAA NCAR URL][17] [1]: https://www.weather.gov/safety/cold-polar-vortex [2]: https://en.wikipedia.org/wiki/Sudden_stratospheric_warming [3]: https://earth.nullschool.net/#2018/02/09/0000Z/wind/isobaric/10hPa/orthographic=-309.84,77.65,347/loc=-60.080,35.968 [4]: https://earth.nullschool.net/#2018/02/12/0000Z/wind/isobaric/10hPa/orthographic=-309.84,77.65,347 [5]: https://en.wikipedia.org/wiki/National_Observatory_of_Athens [6]: https://www.youtube.com/watch?v=cvPgY3T0EdQ [7]: https://www.youtube.com/watch?v=Y1sw5qLpuSU [8]: https://earth.nullschool.net/#2018/02/09/0000Z/wind/isobaric/10hPa/overlay=temp/orthographic=-309.84,77.65,347/loc=30.846,75.106 [9]: https://earth.nullschool.net/#2018/02/12/0000Z/wind/isobaric/10hPa/overlay=temp/orthographic=-309.84,77.65,347/loc=60.255,68.289 [10]: //www.hoelymoley.com/questions/13501/where-did-the-daily-temperature-variation-go [11]: https://i.stack.imgur.com/PqqjT.gif [12]: https://i.stack.imgur.com/bgPfN.gif [13]: https://i.stack.imgur.com/UF5zo.gif [14]: https://i.stack.imgur.com/O2KBJ.gif [15]: https://i.stack.imgur.com/Q2Q9D.gif [16]: https://i.stack.imgur.com/XT2q5.gif [17]: https://www.esrl.noaa.gov/psd/data/composites/day/

编辑总结

取消

添加一个评论 |

正确的小错误或错误
澄清的意思,而不更改它
添加相关资源或链接
总是尊重作者的意图
不使用编辑与作者回复

创建代码用引号”或式子~篱笆
' ' '
像这样
' ' '
添加语言标识符来突出显示的代码
”“python
def函数(foo):
打印(foo)
' ' '
把段落之间的回报
在结束linebreak添加2个空间
_italic_或* *的* *
报价将>开始的
做链接(尽量使用https)
< https://example.com >
(例子)(https://example.com)
< a href = " https://example.com " > < / >示例
MathJax方程罪\ \ ^ 2θ美元

格式帮助»
回答帮助»

MathJax帮助»