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Park, Myung-Sook
School of Urban and Environmental Engineering
Research Interests
  • Improvement of our fundamental understanding of cloud physical process and latent heating and cooling rates in tropical cyclones and other synoptic- to large-scale circulations.
  • To evaluate model simulated cloud process with ground-truth assuming field-experiment observations and to improve the cloud parameterization process of models of all scales.
  • Mechanisms responsible for a genesis and decay of tropical convective systems in association with large-scale environmental and surface thermodynamic variability.

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Relationship between intraseasonal oscillation and diurnal variation of summer rainfall over the South China Sea

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Title
Relationship between intraseasonal oscillation and diurnal variation of summer rainfall over the South China Sea
Author
Ho, Chang-HoiPark, Myung-SookChoi, Yong-SangTakayabu, Yukari N.
Keywords
CONVECTION; TRMM; PRECIPITATION; VICINITY; BORNEO
Issue Date
2008-02
Publisher
AMER GEOPHYSICAL UNION
Citation
GEOPHYSICAL RESEARCH LETTERS, v.35, no.3, pp.L03701 -
Abstract
The diurnal variations in summer rainfall over the South China Sea (110 degrees E-120 degrees E, 10 degrees N-20 degrees N) are examined for active and inactive intraseasonal oscillation (ISO) periods that are characterized by strong and weak 850-hPa zonal winds, respectively. By analyzing the rainfall retrievals from the Tropical Rainfall Measuring Mission Precipitation Radar for the period 1999-2006, it is found that the peak rainfall during the active and inactive ISO periods occurs in the late morning and late evening, respectively. The morning peak in the active ISO period arises from the organized oceanic convective systems associated with the local convergence along the west coast of the Philippines. The evening peak in the inactive ISO period originates from a stratiform morphology that is initiated by land-based convective systems owing to the increased thermodynamic instability over the Philippines during daytime
URI
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DOI
10.1029/2007GL031962
ISSN
0094-8276
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