Journal: Scientific Reports
Article Title: Anatomy of the Bezymianny volcano merely before an explosive eruption on 20.12.2017
doi: 10.1038/s41598-021-81498-9
Figure Lengend Snippet: TerraSAR-X amplitude imagery of Bezymianny. ( a ) Surface reflectivity of the radar signal on 07 December 2017. Arrows refer to the azimuth and Line-of-Sight (LOS) direction of the sattelite. Inset indicates the area zoomed in for ( a – d ). ( b ) Reflectivity on 18 December 2017. Dark shadow regions due to opening tensile fractures (20 m wide, N–S extent, approx. 100 m) that appeared two days before the 20 December 2017 eruption. ( c ) Amplitude changes shown with red and green colored pixels. Please note the concentric pattern (white dashed lines) of newly emerged radar shadows. ( d ) Pixel offsets indicate the motion of displacement related to the opening of the shadow casting fractures and summit uplift towards LOS. Images a-c generated using GAMMA Remote Sensing software as well as Matplotlib, OpenCV libraries in Python. Image d: displacements generated with the Matlab based Particle Image Velocimetry (PIV) software PIVlab, plotted with Python. TerraSAR-X (TSX) spotlight-mode satellite images available from German Aerospace Center (DLR).
Article Snippet: Image d: displacements generated with the Matlab based Particle Image Velocimetry (PIV) software PIVlab, plotted with Python.
Techniques: Generated, Software