地球上magnetopheres弱点在哪里?- 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 - t11:47:24z //www.hoelymoley.com/feeds/question/17667 https://creativecommons.org/licenses/by-sa/4.0/rdf //www.hoelymoley.com/q/17667 4 地球上magnetopheres弱点在哪里? Muze //www.hoelymoley.com/users/5052 2019 - 08 - 05 - t13:27:47z 2020 - 03 - 03 - t17:02:54z < p >下图显示了磁气圈如何定义点固体磁铁和宇宙辐射有一个窗口在月球上,差距,或焦点。我不确定这些区域叫什么?< / p > < p >,这些地区是地球上?有地图的磁气圈或当地自然磁场相同的效果吗?< / p > < p > < a href = " https://i.stack.imgur.com/67lZM.jpg " rel = " nofollow noreferrer " > < img src = " https://i.stack.imgur.com/67lZM.jpg " alt = "在这里输入图像描述" > < / > < / p > //www.hoelymoley.com/questions/17667/-/19355 # 19355 3 WJB回答的地球上magnetopheres弱点在哪里? WJB //www.hoelymoley.com/users/14123 2020 - 03 - 02 - t11:59:12z 2020 - 03 - 03 - t17:02:54z < p >地球内部的磁场最弱的地区被称为南大西洋异常(SAA)。在地球的表面,在这个区域的字段是大约三分之一地区最大强度的强度(南北磁泡两极附近),所以大约20000 nanotesla与60000 nanotesla。< / p > < p >较弱的领域出现在地球表面是由相反极性场在地球外核的表面(向内而不是向外的其余的南半球)。它允许辐射带接近地球表面,并允许带电粒子穿透低进入地球大气层,增加卫星飞越该地区的风险。

The inner radiation belt is closest to Earth's surface over the SAA

Source: NASA, via wikimedia

Electrical upsets of TOPEX/Poseidon satellite, clustered around SAA

Source: USRA The weaker region of field over the SAA allows the radiation belts closer to the surface, so increases the occurrence of electrical upsets (yellow dots in the image) on satellites flying through the region, here the TOPEX/Poseidon satellite. The contours are magnetic field intensity in nanoTesla.
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