title: Laser-ranging scanning system to observe topographical deformations of volcanoes.
abstract: We have developed a laser-ranging system to observe the topographical structure of volcanoes. This system can be used to measure the distance to a target by a laser and shows the three-dimensional topographical structure of a volcano with an accuracy of 30 cm. This accuracy is greater than that of a typical laser-ranging system that uses a corner-cube reflector as a target because the reflected light jitters as a result of inclination and unevenness of the target ground surface. However, this laser-ranging system is useful for detecting deformations of topographical features in which placement of a reflector is difficult, such as in volcanic regions.
authors.forename: T
authors.initials: T
authors.lastname: Aoki
authors.forename: M
authors.initials: M
authors.lastname: Takabe
authors.forename: K
authors.initials: K
authors.lastname: Mizutani
authors.forename: T
authors.initials: T
authors.lastname: Itabe