Journal
SCIENTIFIC REPORTS
Volume 11, Issue 1, Pages -Publisher
NATURE PORTFOLIO
DOI: 10.1038/s41598-021-96420-6
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Funding
- Leverhulme Centre for Wildfires, Environment and Society through the Leverhulme Trust [RC-2018-023]
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A study found a teleconnection between North Atlantic tropical storms and Amazon fires, with years of high Amazon fire activity associated with atmospheric conditions over the Atlantic that favor tropical cyclones. Caribbean storms and precipitation anomalies could promote favorable atmospheric conditions for Amazon fires.
A teleconnection between North Atlantic tropical storms and Amazon fires is investigated as a possible case of compound remote extreme events. The seasonal cycles of the storms and fires are in phase with a maximum around September and have significant inter-annual correlation. Years of high Amazon fire activity are associated with atmospheric conditions over the Atlantic which favour tropical cyclones. We propose that anomalous precipitation and latent heating in the Caribbean, partly caused by tropical storms, leads to a thermal circulation response which creates anomalous subsidence and enhances surface solar heating over the Amazon. The Caribbean storms and precipitation anomalies could thus promote favourable atmospheric conditions for Amazon fire.
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