Deformation revealed by Airborne Laser Scanning measured before and after the Kumamoto Earthquake

Abstract

On April 14, 2016, an earthquake of magnitude 6.5 occurred in the Kumamoto region, and two days later, on April 16, a larger earthquake (M 7.3) occurred in the area. Surface faulting appeared intermittently from Aso city to Mifune town after the earthquake. It is important for understanding the mechanism and disaster prevention measures to grasp the deformation of surface faulting and their surroundings. This paper carries out comparison and difference of landforms using aeronautical laser data measured before and after the earthquake of April 16, and examines detailed deformation near the fault.

Pointing accuracy of airborne multi-light source steering device

“…The airborne infrared steering device has found widespread application in modern opto-mechanical systems owing to its strong anti-interference ability, long working distance, and high measurement accuracy [1,2,3,4,5,6]. With the rapid development of modern science and technology, higher requirements have been proposed for its performance, leading to the emergence of multi-light source steering devices.…”