Publications by authors named "Jinhyeok Yu"

Article Synopsis
  • A new data assimilation (DA) system using the ensemble square root filter (EnSRF) was developed to enhance the accuracy of predicting atmospheric particulate matter concentrations in the Community Multiscale Air Quality (CMAQ) model.
  • This study compared EnSRF with other DA methods, like the ensemble Kalman filter (EnKF) and 3DVAR, using the same experimental setup and surface fine particulate matter data over East Asia from May to June 2016.
  • The results showed that EnSRF provided superior performance in both reanalysis and prediction outputs, demonstrating significant improvements in normalized mean biases compared to traditional methods.
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The role of anthropogenic NO emissions in secondary organic aerosol (SOA) production is not fully understood but is important for understanding the contribution of emissions to air quality. Here, we examine the role of organic nitrates (RONO) in SOA formation over the Korean Peninsula during the Korea-United States Air Quality field study in Spring 2016 as a model for RONO aerosol in cities worldwide. We use aircraft-based measurements of the particle phase and total (gas + particle) RONO to explore RONO phase partitioning.

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