The East Asian Subtropical Jet Stream and Atlantic Tropical Cyclones

Zhang, Wei; Villarini, Gabriele; Vecchi, Gabriel A.

doi:10.1029/2020GL088851

i

The East Asian Subtropical Jet Stream and Atlantic Tropical Cyclones

Supporting Files

2020
By Zhang, Wei ; Villarini, Gabriele ; Vecchi, Gabriel A.

Details

Journal Title:

Geophysical Research Letters
Personal Author:

Zhang, Wei ; Villarini, Gabriele ; Vecchi, Gabriel A.
NOAA Program & Office:

OAR (Oceanic and Atmospheric Research) ; CPO (Climate Program Office) ; CIMES (Cooperative Institute for Modeling the Earth System)
Description:

Atlantic tropical cyclones (TCs) can cause significant societal and economic impacts, as 2019's Dorian serves to remind us of these storms' destructiveness. Decades of effort to understand and predict Atlantic TC activity have improved seasonal forecast skill, but large uncertainties still remain, in part due to an incomplete understanding of the drivers of TC variability. Here we identify an association between the East Asian Subtropical Jet Stream (EASJ) during July-October and the frequency of Atlantic TCs (wind speed >= 34 knot) and hurricanes (wind speed >= 64 knot) during August-November based on observations for 1980-2018. This strong association is tied to the impacts of EASJ on a stationary Rossby wave train emanating from East Asia and the tropical Pacific to the North Atlantic, leading to changes in vertical wind shear in the Atlantic Main Development Region (80-20 degrees W, 10-20 degrees N).
Keywords:

East Asian Subtropical Jet Stream Geology Global Teleconnections Hurricanes Hurricane Season Rainfall Rossby Wave Variability Wave Guide Global Teleconnections Hurricane Season Rossby Wave Wave Guide
Source:

Geophysical Research Letters,47,e2020GL088851. https://doi.org/10.1029/2020GL088851
DOI:

https://doi.org/10.1029/2020GL088851
Document Type:

Journal Article
Funding:

Grant no. NA18OAR4310273 ; Grant no. NAOAR4320123
Place as Subject:

East Asian ; Pacific ; Atlantic
Rights Information:

Other
Compliance:

Submitted
Main Document Checksum:

urn:sha256:5b22e16bf0319ecb495dcba0feec725c438ddf8eaf29008cd17a5bb41fc51226
Download URL:

https://repository.library.noaa.gov/view/noaa/28692/noaa_28692_DS1.pdf
File Type:

[PDF - 7.08 MB ]

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