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Local environmental conditions related to seasonal tropical cyclone activity in the Northeast Pacific basin

Collins, JM; Mason, IM; (2000) Local environmental conditions related to seasonal tropical cyclone activity in the Northeast Pacific basin. Geophysical Research Letters , 27 (23) 3881 - 3884. 10.1029/2000GL011614. Green open access

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Abstract

Tropical cyclone formation in the NE Pacific Ocean is poorly understood. We show that by dividing the NE Pacific Ocean into two regions, east and west of 116 degreesW, our understanding is enhanced in terms of which climatological factors are involved. We show that for the period 1972-1997, in our western region, significant relationships exist between several environmental parameters and tropical cyclone numbers on a seasonal timescale, and there is also a significant increasing trend with time. Important parameters common to all tropical cyclone indices examined include relative humidity, sea surface temperature, pressure vertical velocity and precipitable water. The potential for predictability of tropical cyclones in this region is noted.

Type: Article
Title: Local environmental conditions related to seasonal tropical cyclone activity in the Northeast Pacific basin
Open access status: An open access version is available from UCL Discovery
DOI: 10.1029/2000GL011614
Publisher version: http://dx.doi.org/10.1029/2000GL011614
Language: English
Additional information: Copyright 2000 by the American Geophysical Union
Keywords: Oscillation, Climate
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
URI: https://discovery.ucl.ac.uk/id/eprint/86130
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