Open AccessBirth of a hurricane: early detection of large-scale vortex instability
Author(s) -
G. V. Levina
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1640/1/012023
Subject(s) - tropical cyclone , tropical cyclogenesis , instability , cyclogenesis , climatology , vortex , storm , meteorology , environmental science , atlantic hurricane , atmospheric sciences , geology , cyclone (programming language) , geography , physics , computer science , mechanics , field programmable gate array , computer hardware
A way is substantiated for detecting new large-scale vortex instability in the tropical atmosphere. The instability may occur several hours or even several dozens of hours before the formation of a tropical depression or tropical storm. The diagnosis of instability was developed on the basis of data from idealized cloud-resolving atmospheric simulation for tropical cyclogenesis. It is suggested how the evolving instability may be traced by combining high-resolution numerical modeling and GOES Imagery. As an illustration, it is speculated and discussed that the instability may have emerged in future Hurricane Isaias (2020) when it had a status of Potential Tropical Cyclone for 36 hours before it was diagnosed as Tropical Storm.