Premium
Internal structure of ex‐Typhoon Phanfone (2014) under an extratropical transition as observed by the research vessel Mirai
Author(s) -
Katsumata Masaki,
Mori Shuichi,
Geng Biao,
Inoue Jun
Publication year - 2016
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1002/2016gl070384
Subject(s) - frontogenesis , extratropical cyclone , radiosonde , typhoon , cold front , front (military) , climatology , geology , baroclinity , warm front , mesoscale convective system , meteorology , convection , cyclogenesis , rainband , mesoscale meteorology , atmospheric sciences , cyclone (programming language) , tropical cyclone , oceanography , geography , field programmable gate array , computer science , computer hardware
The internal structure of Typhoon Phanfone (2014) undergoing “extratropical transition” over ocean was captured from the research vessel Mirai . The observed time series from world first shipboard polarimetric weather radar and frequent radiosonde launches revealed both dynamic and thermodynamic structure simultaneously in detail for four phases: cirrus shield, warm front, precipitation core, and western flank. To the east of the low‐pressure center, a warm front developed along the midlatitude baroclinic zone. In the eastern vicinity of the center, remnants of the warm core worked to enhance precipitation through convergence and frontogenesis against cold ambient air. This frontogenesis and related latent heating/cooling are suggested to maintain/enhance convection in these phases. In contrast, the warm core suppressed convection in the northern/western vicinity of the low‐pressure center.