A Study of Two Propagating Heavy-Rainfall Episodes near Taiwan during SoWMEX/TiMREX IOP-8 in June 2008. Part I: Synoptic Evolution, Episode Propagation, and Model Control Simulation

This paper is the first of a two-part study to investigate two rain-producing episodes in the longitudetime (Hovmoller) space upstream from Taiwan during the eighth intensive observing period (IOP-8, 1217 June 2008) of the Southwest Monsoon Experiment/Terrain-influenced Monsoon Rainfall Experiment (...

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Bibliographic Details
Published in:Monthly weather review 2014-08, Vol.142 (8), p.2619-2643
Main Authors: Wang, Chung-Chieh, Chieh-Sheng Hsu, Jason, Tai-Jen Chen, George, Lee, Dong-In
Format: Article
Language:English
Subjects:
Climate
Climatology
Control simulation
Convection
Convective systems
Evolution
Grants
Heavy rainfall
Low-level jets
Mathematical models
Mei-yu front
Meteorological satellites
Meteorology
Monsoon rainfall
Monsoons
Mountains
Precipitation
Propagation
R&D
Rain
Rainfall
Rainfall patterns
Regional development
Research & development
Simulation
Southwest monsoon
Squalls
Synoptic conditions
Terrain
Terrain effects
Topography
Upstream
Vertical shear
Vertical wind shear
Weather
Wind shear
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Summary:This paper is the first of a two-part study to investigate two rain-producing episodes in the longitudetime (Hovmoller) space upstream from Taiwan during the eighth intensive observing period (IOP-8, 1217 June 2008) of the Southwest Monsoon Experiment/Terrain-influenced Monsoon Rainfall Experiment (SoWMEX/TiMREX), with a goal to better understand the mechanism and controlling factors for their organization and propagation. Both in a prefrontal environment, the first episode moved eastward and the second was a rare westward-moving event, and each caused heavy rainfall in Taiwan, on 14 and 16 June, respectively. In Part II, the roles played by synoptic conditions and terrain effects are further examined through sensitivity tests.
ISSN:0027-0644
1520-0493
DOI:10.1175/MWR-D-13-00331.1