从国际空间站上拍摄到的夏威夷火山

Hawaii’s big island and its two major volcanoes Mauna Kea and Mauna Loa rest under a partly cloudy sky on Feb. 8, 2022, in this view from the International Space Station.

Mauna Loa, the world’s largest active volcano had been quiet for nearly 40 years. However, in 2022, the volcano began to stir, showing increased numbers of small earthquakes and subtle swelling of certain land surfaces in September. On Nov. 27, fountains of lava began spurting from the mountain’s Northeast Rift Zone and streams of molten rock flowed to the north.

Ten days into the eruption, a NASA aircraft conducted its first flight over the erupting volcano. The aircraft carried NASA’s Uninhabited Aerial Vehicle Synthetic Aperture Radar system, which was used to map the volcano’s topography in fine detail with a Ka-band instrument called GLISTIN-A. Teams from NASA and the United States Geological Survey used data from that sensor to map the thickness of those flows.

Image Credit: NASA

2022年2月8日，在国际空间站拍摄的这张照片中，夏威夷大岛及其两座主要火山莫纳克亚和莫纳克亚在多云的天空下休息。

世界上最大的活火山莫纳罗亚火山已经沉寂了近40年。然而，在2022年，该火山开始活动，9月显示出小地震的增加和某些地表的轻微隆起。11月27日，岩浆喷泉开始从火山的东北裂谷区喷出，熔岩流向北方。

火山爆发10天后，NASA的一架飞机首次飞越了正在喷发的火山。这架飞机携带了NASA的无人驾驶飞行器合成孔径雷达系统，该系统用于通过一种名为GLISTIN-A的Ka波段仪器绘制火山地形的详细地图。NASA和美国地质调查局的团队使用该传感器的数据绘制这些流动熔岩的厚度。

影像来源：NASA