This is a demo map using Sentinel 1 and 2 data where you can draw crevasse polygons and contribute to Antarctic science! Digging into the html/javascript will reveal an experimental tensorflowjs model that tries to predict crevasses from raw satellite images. Note that the model may crash on non-modern devices without WebGL and/or a proper GPU. Also, this is just a proof of concept with bugs (albeit a cool one)!