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Impacts of Madden–Julian oscillation on tropical cyclone activity over the South China Sea: Observations versus HiRAM simulations
Author(s) -
Dao Lan Thi,
Yu JiaYuh
Publication year - 2021
Publication title -
international journal of climatology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.58
H-Index - 166
eISSN - 1097-0088
pISSN - 0899-8418
DOI - 10.1002/joc.6673
Subject(s) - madden–julian oscillation , climatology , tropical cyclone , environmental science , convection , oscillation (cell signaling) , atmospheric model , atmospheric sciences , geology , meteorology , geography , biology , genetics
This study investigates the impacts of Madden–Julian Oscillation (MJO) on tropical cyclone (TC) activity over the western North Pacific (WNP), with a focus on the South China Sea (SCS), based on results from observations and high‐resolution atmospheric model (HiRAM) simulations. Observational analyses show that MJO imposes marked impacts on TC genesis over the SCS, with more (less) TC formations during the enhanced (suppressed) convection phases of MJO. Moreover, MJO also plays an important role in controlling the tracks of both westward‐moving and eastward‐moving TCs over the SCS. Results from HiRAM simulations indicate that, while the atmospheric model generates an MJO of a faster propagation, the general features of TC activity (including genesis and track) changes over the SCS associated with MJO variability have been properly reproduced by HiRAM.