The paper “Analysis of SAR-Derived Products to Support Emergency Management During a Volcanic Crisis: A Case Study of La Palma,” conducted under the framework of the SARAI project, has been published in the prestigious journal Remote Sensing of Environment. This paper describes the work carried out during the Tajogaite volcano eruption on La Palma in 2021 by the Radar Interferometric Laboratory at IGME-CSIC. The article presents the results for analysing the volcano cone’s morphological evolution, regional surface displacements, and changes in lava flow.
This study compares the results from four different SAR satellite constellations (Sentinel-1, COSMO-SkyMed, PAZ-TerraSAR, and Capella) to assess their operational effectiveness during emergencies and potential applications in future events. Furthermore, it showcases the capability of high spatial and temporal resolution SAR data to detect changes in the volcano cone’s structure and the movement of fresh lava flows compared to data from previous days. These findings could provide valuable auxiliary data to support emergency response efforts.
For access to detailed information and research data, you can read the full paper freely through the following link:
https://www.sciencedirect.com/science/article/pii/S0034425723002195
Cone morphology evolution using PAZ Stripmap (3 m Resolution) in ascending geometry. Red features provide geomorphological interpretation of the cone area (line), vents (triangles), crater cliffs (perpendicular line) and lava flows (arrows). Black arrows indicate the flying and observation directions of the satellite. a) 27/09/2021, b) 30/10/2021, c) 21/11/2021, d) 24/12/2021. (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)