Influence of the Madden-Julian Oscillation on Continental United States Hurricane Landfalls

被引：4

作者：

Klotzbach, Philip J. ^{[1
]}

Schreck, Carl J. ^{[2
]}

Compo, Gilbert P. ^{[3
]}

Wood, Kimberly M. ^{[4
]}

Oliver, Eric C. J. ^{[5
]}

Bowen, Steven G. ^{[6
]}

Bell, Michael M. ^{[1
]}

机构：

[1] Colorado State Univ, Dept Atmospher Sci, Ft Collins, CO 80523 USA

[2] North Carolina State Univ, Cooperat Inst Satellite Earth Syst Studies CISESS, Asheville, NC USA

[3] Univ Colorado, Cooperat Inst Res Environm Sci, Natl Ocean & Atmospher Adm Phys Sci Lab, Boulder, CO USA

[4] Mississippi State Univ, Dept Geosci, Mississippi State, MS USA

[5] Dalhousie Univ, Dept Oceanog, Halifax, NS, Canada

[6] Gallagher Re, Chicago, IL USA

来源：

GEOPHYSICAL RESEARCH LETTERS | 2023年 / 50卷 / 07期

基金：

加拿大自然科学与工程研究理事会;

关键词：

tropical cyclone; hurricane; Madden-Julian oscillation; hurricane landfall; hurricane damage; TROPICAL CYCLONE ACTIVITY; POTENTIAL INDEX; MJO; VARIABILITY; MODULATION; GENESIS; WAVES;

D O I：

10.1029/2023GL102762

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

The Madden-Julian oscillation (MJO) significantly impacts North Atlantic hurricanes, with increased hurricane activity occurring when the MJO enhances convection over Africa and the tropical Indian Ocean and suppressed hurricane activity occurring when the MJO enhances convection over the tropical Pacific. Using data from 1905 to 2015, we find more tropical cyclones (TCs) make landfall in the continental United States when the MJO enhances tropical Indian Ocean convection. In addition, when the MJO enhances Western Pacific and Western Hemisphere convection, TC activity is preferentially favored in the Caribbean, leading to more Gulf Coast landfalls. As MJO-enhanced convection moves to the Indian Ocean and Maritime Continent, more storms form in the tropical Atlantic, favoring Florida Peninsula and East Coast landfalls. The MJO's TC steering wind modulation appears to be secondary to its genesis location modulation.

引用

页数：9

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