A5090511636- Atmospheric chemistry and aerosols
- Air Quality and Health Impacts
- Atmospheric and Environmental Gas Dynamics
- Atmospheric Ozone and Climate
- Meteorological Phenomena and Simulations
- Wind and Air Flow Studies
- Toxic Organic Pollutants Impact
- Vehicle emissions and performance
- Atmospheric aerosols and clouds
- Urban Heat Island Mitigation
- Real-time simulation and control systems
- Advanced Chemical Sensor Technologies
- Wind Energy Research and Development
- Marine and Coastal Research
- Oceanographic and Atmospheric Processes
- Ocean Waves and Remote Sensing
- Plant responses to elevated CO2
- Industrial Vision Systems and Defect Detection
- Plant Water Relations and Carbon Dynamics
- Building Energy and Comfort Optimization
- Inertial Sensor and Navigation
- Statistical and numerical algorithms
- Engineering and Test Systems
- Air Quality Monitoring and Forecasting
- Water Quality Monitoring and Analysis
Pusan National University
2013-2022
Texas A&M University
2010-2013
2-Methyl-3-buten-2-ol (MBO) is an important biogenic volatile organic compound (BVOC) emitted by pine trees and a potential precursor of atmospheric secondary aerosol (SOA) in forested regions. In the present study, hydroxyl radical (OH)-initiated oxidation MBO was examined smog chambers under varied initial nitric oxide (NO) acidity levels. Results indicate measurable SOA from low-NO conditions. Moreover, increasing found to enhance SOA. Chemical characterization laboratory-generated...
Atmospheric photooxidation of isoprene is an important source secondary organic aerosol (SOA) and there increasing evidence that anthropogenic oxidant emissions can enhance this SOA formation. In work, we use ambient observations organosulfates formed from epoxydiols (IEPOX) methacrylic acid epoxide (MAE) a broad suite chemical measurements to investigate the relative importance nitrogen oxide (NO/NO2) hydroperoxyl (HO2) formation pathways at forested site in California. contrast IEPOX,...
[1] We measured the mixing ratios and fluxes of isoprene its oxidation products, methacrolein (MACR) methyl vinyl ketone (MVK) from a tall flux tower in metropolitan Houston, Texas, during summertime using relaxed eddy accumulation (REA) system combined with dual-channel GC-FID instrument. show that was affected dominantly by biogenic emission sources daytime, but also tail-pipe (alongside 2-pentenes) are contributing rush hours at night. The observed daytime were much lower than over...
Abstract To study regional-scale carbon dioxide (CO 2 ) transport, temporal variability, and budget over the Southern California Air Basin (SoCAB) during Research at Nexus of Quality Climate Change (CalNex) 2010 campaign period, a model that couples Weather Forecasting (WRF) Model with Vegetation Photosynthesis Respiration (VPRM) has been used. Our numerical simulations use anthropogenic CO emissions Hestia Project fossil-fuel data products along optimized VPRM parameters “FLUXNET” sites,...
We conducted regional scale CO2 simulations using the Weather Research and Forecasting model (WRF) coupled with Vegetation Photosynthesis Respiration Model (VPRM). contrasted simulated concentrations column, ground aircraft observations during Korea-United States Air Quality (KORUS-AQ) 2016 field campaign. Overall, WRF-VPRM slightly underestimates at column monitoring sites, but it significantly an inland tower measurement site, especially within stable (nocturnal) boundary layer in...
Long-term urban carbon cycle studies remain rare despite the importance of for energy, air quality, and climate change. To study spatial temporal variations energy fluxes in a subtropical environment, eddy covariance flux measurements were conducted north downtown Houston, TX, using tall radio-tower installation. The results first 2 yr show that both concentrations CO display typical seasonal diurnal areas. variation net is driven by steady anthropogenic emissions dominated car traffic human...
The authors conducted air quality measurements of the criteria pollutants carbon monoxide, nitrogen oxides, and ozone together with meteorological at a park site southeast College Station, TX, during 2006 Texas Air Quality Study II (TexAQS). Ozone, primary focus measurements, was above 80 ppb 3 days 75 additional 8 in summer 2006, suggestive possible violations National Ambient Standard (NAAQS) this area. In concordance other TexAQS II, elevated mixing ratios coincided northerly flows after...
This work investigates the relationship between sea breeze circulation and ozone concentrations during cold water events in southeastern coastal area of Korean Peninsula, where upwelling frequently occur. analysis was performed based on classification two categories, such as non-cold events, over period 2000-2009. The low air temperature (<TEX>$0.5^{\circ}C$</TEX>), SST (<TEX>$5^{\circ}C$</TEX>) wind direction(southerly) are features Southeastern area. Moreover, cases were significantly...
First Page
[1] In the paper “Characteristics of flux isoprene and its oxidation products in an urban area” (Journal Geophysical Research, 116, D21303, doi:10.1029/2011JD015856, 2011), axis labels “MACR (ppb)” “Benzene Figure 5b were accidentally reversed. The correctly oriented version is provided here.