季节变化如何影响ITCZ的大规模东风流?- 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 - t12:02:08z //www.hoelymoley.com/feeds/question/19733 https://creativecommons.org/licenses/by-sa/4.0/rdf //www.hoelymoley.com/q/19733 3 季节变化如何影响ITCZ的大规模东风流? Aerinmund Fagelson //www.hoelymoley.com/users/20448 2020 - 05 - 13 - t08:36:24z 2021 - 02 - 10 - t09:08:40z < p >我新气候科学和学习基本的热带辐合区(ITCZ),这导致了主导东风“信风”。< / p > < p >这幅画,我已经学了是这样的。随着ITCZ沿着赤道带的低表面压力,空气在北半球从北方和南方在南半球。由于科里奥利效应,风在北半球气流向西向南和向北的风在南半球也向西偏移,对地球参考系。因此,沿着ITCZ风吹向西(例如东风)。< / p > < p >然而,我也知道ITCZ不是一个完美的圆,也随着季节到处移动,这在北半球夏季主要是在北半球,南半球的夏天,它主要是在南半球,和平均每天你会发现部分带在北半球和南半球的部分。< / p > < p >但我基本图片分解。事实上,如果ITCZ位于赤道以北的,那么风从北方接近向西偏移,当风从南方偏转向东方< em > < / em >。的信风南面ITCZ现在西风带而不是传统的东风,和风会聚ITCZ和相反的方向(大概摩擦彼此创建摩擦)。镜子情况持有ITCZ南部的赤道。< / p >

My questions are:

1) Is my above reasoning correct / applicable to the atmosphere?

2) If so, what effects does this have on the properties of the ITCZ, and what are some examples of these effects on weather patterns? I am very happy for explanations as well as references to appropriate texts.

Many thanks!

A.

//www.hoelymoley.com/questions/19733/-/20787 # 20787 2 ahmathelte回答的季节变化如何影响ITCZ的大规模东风流? ahmathelte //www.hoelymoley.com/users/20685 2021 - 02 - 10 - t09:08:40z 2021 - 02 - 10 - t09:08:40z < p >我希望我能解释这个好!我将集中在太平洋ITCZ回答。第一点是科里奥利力是零在赤道和最大两极< a href = " https://en.wikipedia.org/wiki/Coriolis_force " rel = " nofollow noreferrer " > (1) < / >。所以,另一个因素发挥作用< a href = " https://en.wikipedia.org/wiki/Walker_circulation " rel =“nofollow noreferrer”>“强烈的沃克环流< / >与< a href = " https://en.wikipedia.org/wiki/El_Ni%C3%B1o%E2%80%93Southern_Oscillation " rel = " nofollow noreferrer " >厄尔尼诺-南方涛动(ENSO) < / >。ENSO州3:正常情况下,拉尼娜和厄尔尼诺现象。< / p >

Given that Coriolis force is minimal around the equator, other wind drivers are more important. El Niño (La Niña) occurs when the tropical Sea surface Temperature (SST) in the central and eastern Pacific ocean is warmer (cooler) than the multi-decadal climate average. During normal conditions, higher pressure over the southeastern Pacific and lower pressure over the western Pacific drive easterly trade winds along the equator (known as Walker circulation), resulting in cold water upwelling and dry weather in the eastern Pacific. When the easterly trades are exceptionally strong, the eastern Pacific becomes colder and drier, resulting in La Niña conditions. The last case, El Niño occurs if the pressure over the eastern Pacific decreases: then easterly winds weaken or reverse direction, leading to a stronger ocean countercurrent that carries warm water into the eastern Pacific beside wetter weather conditions (Ahrens, 2009; Stull, 2018). So during El Niño events, the winds are not always easterlies( heading west) in the western Pacific they are westerlies, and in the eastern Pacific are easterlies. And keep in mind that the ITCZ is strongly linked to warm SST. That is why the ITCZ reaches the northernmost location in September (same as warm SST), although the Solar insolation peak in mid boreal summer (July).

I hope this answers the question. late better than never ;-)
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