A5003899875- Atmospheric chemistry and aerosols
- Atmospheric Ozone and Climate
- Atmospheric and Environmental Gas Dynamics
- Atmospheric aerosols and clouds
- Fire effects on ecosystems
- Air Quality Monitoring and Forecasting
- Air Quality and Health Impacts
- Semiconductor materials and devices
- Lightning and Electromagnetic Phenomena
- Ferroelectric and Negative Capacitance Devices
- Ferroelectric and Piezoelectric Materials
- Connective tissue disorders research
- Retinopathy of Prematurity Studies
Korea Advanced Institute of Science and Technology
2024
Langley Research Center
2002-2008
National Aeronautics and Space Administration
2008
Doheny Eye Institute
2002
University of Southern California
2002
Measurements of gaseous and particulate reactive nitrogen sulfur species, as well other chemical were made using the P‐3B DC‐8 aircraft over western Pacific during NASA Transport Chemical Evolution (TRACE‐P) experiment, conducted between February April 2001. These measurements provide a good opportunity to study extent which anthropogenic NO x SO 2 emitted East Asian countries remain y (=SO + nssSO 4 2− ) in form gas or fine particles when an air mass is transported into region. In this...
The Biomass Burning and Lightning Experiment phase C (BIBLE‐C) aircraft mission was carried out near Darwin, Australia (12°S, 131°E) in December 2000. This the first experiment designed to estimate lightning NO production rates tropics, where is considered be most intense. During two flights (flights 10 13 made on 9 11–12, respectively) enhancements of x (NO + 2 ) up 1000 1600 parts per trillion by volume (pptv, 10‐s data) were observed at altitudes between 11.5 14 km. Geostationary...
In situ aircraft measurements of ozone (O 3 ) and its precursors were made over northern Australia in August–September 1999 during the Biomass Burning Lightning Experiment Phase B (BIBLE‐B). A clear positive correlation O with carbon monoxide (CO) was found biomass burning plumes boundary layer (<3 km). The ΔO /ΔCO ratio (linear regression slope ‐CO correlation) is to be 0.12 ppbv/ppbv, which comparable 0.15 ppbv/ppbv observed at 0–4 km Amazon Africa previous studies. net flux exported...
The Biomass Burning and Lightning Experiment phase A (BIBLE A) aircraft campaign was carried out over the tropical western Pacific in September October 1998. During this period, biomass burning activity Indonesia quite weak. Mixing ratios of NO x y air masses that had crossed Indonesian islands within 3 days prior to measurement (Indonesian masses) were systematically higher than those originating from central (tropical masses). Sixty percent at 9–13 km (upper troposphere, UT) originated...
The seasonal variation of ozone (O 3 ) in the boundary layer (BL) over western Pacific is investigated using a chemistry‐transport model. model results for January and April–May 2002 were evaluated by comparison with PEACE aircraft observations. In January, strong northwesterlies efficiently transported NO x from continent, leading to an O increase approximately 5–10 ppbv distance about 3000 km. April, southwesterlies dominated due anticyclone development Pacific. Along this flow, continued...
A CMOS-compatible low temperature ferroelectric orthorhombic ZrO 2 on Ru by atomic layer deposition is developed.