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Il più potente uragano mai registrato (Patricia, con venti che hanno raggiunto i 325km/h), il numero più elevato di uragani di grado maggiore nel Pacifico da più di 40 anni, tre cicloni che si sono abbattuti su questo oceano simultaneamente per la prima volta: il 2015 è stato un anno da record per la meteorologia.
Patricia fotografata dalla Stazione spaziale internazionale a fine ottobre
Il responsabile, secondo i climatologi dell’Agenzia americana oceanica e atmosferica (NOAA), è il Niño. Questa corrente calda del Pacifico "si è intensificata durante l’estate e ha avuto un impatto significativo sulla stagione degli uragani durante i mesi di intensità maggiore", scrive il NOAA.
Cassette postali dopo il passaggio del tifone Soudelor in agosto
Il Niño ha anche avuto un effetto "bilancia" e se il Pacifico ha subito la furia dei tifoni, l’Atlantico è stato relativamente risparmiato.
ats/ZZ
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