Browsing by Author "Jing Xiang Chung"

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    Investigating the mechanisms of diurnal rainfall variability over Peninsular Malaysia using the non-hydrostatic regional climate model
    (Springer, 2017) Ahmad Fairudz Jamaluddin; Fredolin Tangang; Jing Xiang Chung; Liew Juneng; Hidetaka Sasaki; Izuru Takayabu
    This study aims to provide a basis for understanding the mechanisms of diurnal rainfall variability over Peninsular Malaysia by utilising the Non-Hydrostatic Regional Climate Model (NHRCM). The present day climate simulations at 5 km resolution over a period of 20 years, from 1st December 1989 to 31st January 2010 were conducted using the six-hourly Japanese re-analysis 55 years (JRA-55) data and monthly Centennial in situ Observation Based Estimates (COBE) of sea surface temperature as lateral and lower boundary conditions.
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    Madden Julian oscillation modulation for surface ozone in Peninsular Malaysia
    (Elsevier, 2020) Mary Angelina Jud; Liew Juneng; Fredolin T. Tangang; Mohd Talib Latif; Jing Xiang Chung; Fatimah Ahamad
    This study investigates the modulation of Madden-Julian Oscillation (MJO) on surface ozone (O3) variability in Peninsular Malaysia. A 17-years (2000-2016) record of daily maximum surface ozone (O3Max) concentration from 24 air quality monitoring stations across Peninsular Malaysia were divided into six sub-regions namely R1, R2, R3, R4, R5 and R6. To investigate MJO modulation on O3Max, total cloud cover (TCC), surface air temperature (SAT) and surface wind from ERA Interim Reanalysis were also analyzed.
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    Spatio-temporal assessment of nocturnal surface ozone in Malaysia
    (Elsevier, 2019) Mohd Famey Yusoff; Mohd Talib Latifa; Liew Juneng; Md Firoz Khan; Fatimah Ahamad; Jing Xiang Chung; Anis Asma Ahmad Mohtar
    This study aims to determine the level and potential sources of nocturnal surface ozone (NSO) in different regions in Malaysia. Eleven-year (2005-2015) ozone data from 37 continuous air quality monitoring stations throughout Malaysia have been analysed to determine spatio-temporal variations in NSO concentrations. NSO daily maximum concentrations from different regions in Malaysia were used for seasonal variation analysis while linear regression and the Mann-Kendall trend test were used for the annual variation analysis.