La Palma volcano lava flow
![Image](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiWYaH8fjRwU0jktngXapj24eVZkLInrU_1vGUug3smx5BNv6XhX_gM5NwU2GOkkHAgy06hNNi8REj8RctwjkwR12QGn2jJhqmGh7-4iKhsJL3k6BsRgdzp2Lf-xBbJJHE3EkmM3C8-OEA/w640-h360/BckReds_Nd%2528B4-B11%2529.png)
Officially published by ESA on October 1st, the raw image (2021-09-30) is already available at Google-Earth-Engine , where you can manipulate with a simple code filters and thresholds for edge detection. In this demo we used a true color background shifted to reds, and a Normalized-Difference (B4 red, B11 SWIR 1) index for the lava flow. Check the code here .