Abstract：
:In 1816, the coldest summer of the past two centuries was observed over northeastern North America and western Europe. This so-called Year Without a Summer (YWAS) has been widely attributed to the 1815 eruption of Indonesia's Mt. Tambora and was concurrent with agricultural failures and famines worldwide. To understand the potential impacts of a similar future eruption, a thorough physical understanding of the YWAS is crucial. Climate model simulations of both the 1815 Tambora eruption and a hypothetical analogous future eruption are examined, the latter occurring in 2085 assuming a business-as-usual climate scenario. Here, we show that the 1815 eruption drove strong responses in both the ocean and cryosphere that were fundamental to driving the YWAS. Through modulation of ocean stratification and near-surface winds, global warming contributes to an amplified surface climate response. Limitations in using major volcanic eruptions as a constraint on cloud feedbacks are also found.
journal_name
Nat Communjournal_title
Nature communicationsauthors
Fasullo JT,Tomas R,Stevenson S,Otto-Bliesner B,Brady E,Wahl Edoi
10.1038/s41467-017-01302-zsubject
Has Abstractpub_date
2017-10-31 00:00:00pages
1236issue
1issn
2041-1723pii
10.1038/s41467-017-01302-zjournal_volume
8pub_type
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