Airborne observation with a low-cost hyperspectral instrument: retrieval of NO2 vertical column densities (VCDs) and the satellite sub-grid variability over industrial point sources
Jong-Uk Park,Hyun-Jae Kim,Jin-Soo Park,Jinsoo Choi,Sang Seo Park,Kangho Bae,Jong-Jae Lee,Chang-Keun Song,Soojin Park,Kyuseok Shim,Yeonsoo Cho,and Sang-Woo Kim
Department of Civil Urban Earth and Environmental Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, South Korea
Jong-Jae Lee
Department of Civil Urban Earth and Environmental Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, South Korea
Chang-Keun Song
Department of Civil Urban Earth and Environmental Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, South Korea
Graduate School of Carbon Neutrality, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, South Korea
Research & Management Center for Particulate Matters at the Southeast Region of Korea, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, South Korea
Soojin Park
School of Earth and Environmental Sciences, Seoul National University, Seoul, South Korea
Kyuseok Shim
School of Earth and Environmental Sciences, Seoul National University, Seoul, South Korea
Yeonsoo Cho
School of Earth and Environmental Sciences, Seoul National University, Seoul, South Korea
The high-spatial-resolution NO2 vertical column densities (VCDs) were measured from airborne observations using the low-cost hyperspectral imaging sensor (HIS) at three industrial areas in South Korea with the newly developed versatile NO2 VCD retrieval algorithm apt to be applied to the instruments with volatile optical and radiometric properties. The airborne HIS observations emphasized the intensifying satellite sub-grid variability in NO2 VCDs near the emission sources.
The high-spatial-resolution NO2 vertical column densities (VCDs) were measured from airborne...