Geophysical Research Letters Geophysical Research Letters, American Geophysical Union, 2021, 48 (8), ⟨10.1029/2020GL091649⟩ Geophysical Research Letters, 2021, 48 (8), ⟨10.1029/2020GL091649⟩ Geophysical Research Letters (0094-8276) (American Geophysical Union (AGU)), 2021-04, Vol. 48, N. 8, P. e2020GL091649 (11p.)