A5017331715- Atmospheric and Environmental Gas Dynamics
- Atmospheric chemistry and aerosols
- Atmospheric Ozone and Climate
- Aeolian processes and effects
- Atmospheric aerosols and clouds
- Solar Radiation and Photovoltaics
- Meteorological Phenomena and Simulations
Seoul National University
2024
Yonsei University
2020-2022
Abstract Despite the importance of understanding urban emission characteristics greenhouse gases (GHGs) and air pollutants, few studies have conducted integrated assessments across diverse environments. Herein, we a comprehensive evaluation GHGs pollutants in seven cities Northern Hemisphere using ground‐based Fourier transform spectrometers. Our analysis primarily focused on ratios excess column‐averaged dry‐air mole fractions carbon monoxide (CO) to dioxide (CO 2 ) (∆XCO:∆XCO those methane...
In this paper, we introduce a cloud top-height (CTH) retrieval algorithm using simultaneous observations from the Himawari-8 and FengYun (FY)-2E geostationary (GEO) satellites (hereafter, dual-GEO CTH algorithm). The estimates based on parallax, which is difference in apparent position of clouds observed two GEO simultaneously. consists four major procedures: (1) image remapping, (2) matching, (3) calculation, (4) quality control. retrieved CTHs were compared with other satellite...
Stereoscopic cloud-top height (CTH) retrieval from two geostationary (GEO) satellites is usually realized through a visible (VIS) band with high horizontal resolution. A stereoscopic-based CTH algorithm (prototype dual-GEO algorithm) proposed in our previous study also adopts this approach. Although approach can retrieve accurate stereoscopic CTHs, the heights of optically thin upper clouds overlying lower are challenging to because parallax difference between GEOs determined by owing low...
Abstract Satellites provide global coverage for monitoring atmospheric greenhouse gases, crucial understanding climate dynamics. However, their temporal and spatial resolutions fall short in detecting urban‐scale variations. To enhance satellite reliability over urban areas, this study presents the first comprehensive analysis of long‐term observations column‐averaged dry air mole fractions CO 2 , CH 4 (XCO XCH XCO) using two ground‐based fourier transform infrared spectrometers, EM27/SUNs,...