. Author manuscript; available in PMC: 2020 May 21.
Published in final edited form as: Geophys Res Lett. 2019 Jun 27;46(13):7643–7653. doi: 10.1029/2019gl083469
This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.