The 2005 hurricane season: An echo of the past or a harbinger of the future?

Recent Atlantic hurricane activity raises several questions. For example, why was the 2005 season so early and active and are there similarities with the past? We show that parallels exist between 2005 and previously active years. Tropical Atlantic sea surface temperature (SST) anomalies beginning i...

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Bibliographic Details
Published in:Geophysical research letters 2006-03, Vol.33 (5), p.L05707-n/a
Main Authors: Virmani, Jyotika I., Weisberg, Robert H.
Format: Article
Language:English
Subjects:
Atmospheric Processes
Climate change and variability
Decadal ocean variability
Earth sciences
Earth, ocean, space
Exact sciences and technology
Ocean/atmosphere interactions
Oceanography
Physical
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Summary:Recent Atlantic hurricane activity raises several questions. For example, why was the 2005 season so early and active and are there similarities with the past? We show that parallels exist between 2005 and previously active years. Tropical Atlantic sea surface temperature (SST) anomalies beginning in winter aided the formation of early storms. On longer timescales SST, sea level pressure and zonal winds exhibit multidecadal variability; weaker easterlies during the positive phase of the Atlantic Multidecadal Oscillation (AMO) result (via ocean‐atmosphere interactions) in warmer water and increased hurricane activity. However, individual active years appear independent of the AMO phase.
ISSN:0094-8276
1944-8007
DOI:10.1029/2005GL025517