Professor Maria Ana Baptista (DF/ISEL) is a co-author of the article "Global Tonga tsunami explained by a fast-moving atmospheric source", published in the journal Nature.
The article explains the excecional aspetes of the global tsunami originating from the colossal explosion of the Hunga Tonga volcano-Hunga Ha'apai (Tonga archipelago, South Pacific) that occurred on January 15, 2022. Based on the analysis of data recorded at global level and numerical and analytical models, the authors demonstrate that the atmospheric propagation of acoustic gravity waves that radiated from the powerful volcanic explosion provided the energy needed to originate a high-speed tsunami, global and long-lasting range. This work also has as a consequence the need for the revision of the current systems of early-warning of tsunamis.
Link to the article here.