干涉合成孔径雷达是一项能够对地表变形进行测量的遥感技术,在一个巨大区域内,它的变形测量精度可达亚厘米级,而其空间分辨率则在数十米以内。本文对我们应用InSAR技术对阿拉斯加火山进行研究的最新成果进行了总结,同时包括火山的喷发和非喷发活动。这些研究成果表明InSAR不仅能够增进我们对阿拉斯加火山活动的理解,而且还能够增强我们对未来火山喷发情况及其灾害的预测能力。 Interferometric Synthetic Aperture Radar (SAR) is a remote sensing technique that can measure the deformation of the earth’s surface. Its deformation measurement accuracy can reach sub-cm in a huge area, but its spatial resolution is within a few tens of meters. This article summarizes the latest results of our study of the Alaskan Volcano using InSAR technology, including volcanic eruptions and non-eruptions. These findings show that InSAR not only enhances our understanding of Alaska volcanic activity, but also enhances our ability to predict future volcanic eruptions and their disasters.