Ever wonder why North America has so many more tornados than South America? Funing Li and co-authors (including me) think it has to do with the roughness of the surface upstream of the severe storm regions:
- PNAS: https://www.pnas.org/doi/10.1073/pnas.2315425121
- preprint also available: https://www.researchsquare.com/article/rs-1886895/v1