Publications by authors named "Soon-Hwan Lee"

Article Synopsis
  • The study investigated high concentrations of particulate matter (PM) after a cold front passed in January 2018, using the WRF and CMAQ models to analyze the meteorological and pollution changes.
  • The analysis divided the event into two stages, noting that Stage 2 had a higher contribution from vertical advection due to atmospheric conditions after the cold front compared to Stage 1.
  • Key findings included the impact of meteorological factors like temperature drops and increased wind and humidity on PM levels, highlighting how varying synoptic patterns can alter air pollution dynamics in the region.
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Recent rapid industrial development in the Korean Peninsula has increased the impacts of meteorological disasters on marine and coastal environments. In particular, marine fog driven by summer cold water masses can inhibit transport and aviation; yet a lack of observational data hinders our understanding of this phenomena. The present study aimed to analyze the differences in cold water mass formation according to sea surface temperature (SST) resolution and its effects on the occurrence and distribution of sea fog over the Korean Peninsula from June 23-July 1, 2016, according to the Weather Research and Forecasting model.

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Understanding the CO flux over agricultural crop fields is critical because the temporal cycle is driven by both ecological environment and anthropogenic change. We analyzed the net ecosystem exchange of CO measured over a barley-rice double-cropping field using the eddy covariance method for 5 years. We conducted gap-filling based on u-threshold criteria and partitioned the net ecosystem exchange into gross primary production and respiration.

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This study investigates a significant biomass burning (BB) event occurred in Colorado of the United States in 2012 using the Community Multi-scale Air Quality (CMAQ) model. The simulation reasonably reproduced the significantly high upper tropospheric O concentrations (up to 145ppb) caused by BB emissions. We find the BB-induced O was primarily affected by chemical reactions and dispersion during its transport.

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