Sea turtles have geomagnetic abilities, which serve as an internal GPS.

海龟具有地磁能力，类似于内部 GPS。

The last polarity reversal took place some 770,000 years ago.

最近一次地磁极性倒发生在大约77万年前。

What can be done about it? Well there's something called the world magnetic model.

对此可以采取什么措施？有种模型名为世界地磁场模型。

Currently, geomagnetic activity is still ongoing, according to the National Satellite Meteorological Centre.

据国家卫星气象中心称，目前地磁活动仍在进行中。

But Earth's magnetic field deflects the solar wind and preserves our air.

但是地磁场能使太，大气层。

Without the magnetic field Earth would be an airless waste devoid of life.

如果没有地磁场地球将没有空气，无法生存。

The last time we had a big power outage due to a geomagnetic storm was in the 80s.

上次由于地磁暴造成大停电是在80年代。

Here, they can create geomagnetic storms capable of disrupting long-range communication and causing blackouts.

掀起地磁暴，由此能扰乱远距离通信并引起大规模停电。

Without the geomagnetic field, that solar wind would hit the Earth's atmosphere directly.

如果没有地磁场，太就会直接撞击地球的大气层。

Within the iron core, the rotating ball of molten iron generated a remarkable magnetic field.

得益于地球的铁质核心不断旋对流逐渐产生地磁场。

The more natural way that this could happen is with a severe geomagnetic disturbance, or GMD.

发生这种情况的更自然的方式是发生严重的地磁扰动（GMD）。

The Northern Lights are more visible than usual because of a geomagnetic storm which disrupted the Earth's magnetic field.

由于地磁暴扰乱地球磁场，北极光比往常更加清晰可见。

And the timing of this geomagnetic storm with an erupting volcano in Iceland puts nature on full display.

这场地磁暴和冰岛火山的喷发正好同时发生，将大自然的魅力展现得淋漓尽致。

The Kp index reflects the global magnetic field activity every three hours, with higher values indicating stronger geomagnetic activity.

Kp 指数每三小时反映一次全球磁场活动，数值越高表明地磁活动越强。

We call it a geomagnetic storm or a geomagnetic disturbance.

我们称之为地磁暴或地磁扰动。

This is called a coronal mass ejection, and it results in a geomagnetic storm when it arrives at the Earth.

这被称为日冕物质抛射，当它到达地球时会导致地磁暴。

Around the same time, there was a " geomagnetic storm watch" listed by the U.S. Space Weather Prediction Center.

大约在同一时间，美国空间天气预报中心列出一个" 地磁暴观察" 。

Did the sunspots cause the geomagnetic fields or did the geomagnetic fields cause the sunspots?

是太黑子导致地磁场还是地磁场导致太黑子？

Not the intensity of the geomagnetic disturbance itself.

不是地磁干扰本身的强度。

He said that the incident is believed to be the largest collective loss of satellites from a single geomagnetic event.

他说，该事件被认为是单次地磁事件造成的最大规模卫星集体损失事件。