Zobrazeno 1 - 10
of 81
pro vyhledávání: '"Youngmin Noh"'
Autor:
Juseon Shin, Youngmin Noh
Publikováno v:
Asian Journal of Atmospheric Environment, Vol 18, Iss 1, Pp 1-10 (2024)
Abstract This study explores potential of LiDAR technology to rapidly detect aerosolized biological terror agents in the atmosphere. It assesses the application by simulating extinction coefficients and the Ångström exponent at various wavelengths
Externí odkaz:
https://doaj.org/article/40bb602e317a4d59b4698a9791e8b307
Publikováno v:
Atmosphere, Vol 14, Iss 11, p 1621 (2023)
Remote control of the state of the atmosphere is an urgent problem nowadays. The problem of remote monitoring of the optical parameters of the atmosphere is solved using a matrix polarization lidar (MPL). The scattering matrix obtained from polarizat
Externí odkaz:
https://doaj.org/article/b9e9cd99e0324ea4b2700b3c83e01341
Long-Term Variation Study of Fine-Mode Particle Size and Regional Characteristics Using AERONET Data
Autor:
Juseon Shin, Juhyeon Sim, Naghmeh Dehkhoda, Sohee Joo, Taegyeong Kim, Gahyeong Kim, Detlef Müller, Matthias Tesche, Sung-Kyun Shin, Dongho Shin, Youngmin Noh
Publikováno v:
Remote Sensing, Vol 14, Iss 18, p 4429 (2022)
To identify the long-term trend of particle size variation, we analyzed aerosol optical depth (AOD, τ) separated as dust (τD) and coarse-(τPC) and fine-pollution particles (τPF) depending on emission sources and size. Ångström exponent values a
Externí odkaz:
https://doaj.org/article/a336b31034974fa1baf179839de3577e
Publikováno v:
Remote Sensing, Vol 14, Iss 5, p 1224 (2022)
In this study, we attempted to calculate the extinction parameters of PM2.5 using images from a commercial camera. The photo pixels provided information on the characteristics of the objects (i.e., the reflectivity, transmittance, or extinction effic
Externí odkaz:
https://doaj.org/article/1e6e567383ac4bd9ad14cebe51f0d694
Publikováno v:
Remote Sensing, Vol 14, Iss 6, p 1510 (2022)
Black carbon (BC) absorption aerosol optical depth (AAODBC) defines the contribution of BC in light absorption and is retrievable using sun/sky radiometer measurements provided by Aerosol Robotic Network (AERONET) inversion products. In this study, w
Externí odkaz:
https://doaj.org/article/ec6bebfc897142ccaf59727bebc1b0de
Publikováno v:
Remote Sensing, Vol 14, Iss 7, p 1592 (2022)
Fine particulate matter (PM) release is regulated by environmental policies in most countries. This study investigated long–term trends in the mass extinction efficiency (Qe) of aerosols in Northeast Asia. For this purpose, the Qe was calculated us
Externí odkaz:
https://doaj.org/article/3aeb5c36094045c4bce8e1fe7296d048
Autor:
Dukhyeon Kim, Youngmin Noh
Publikováno v:
Sensors, Vol 21, Iss 21, p 7282 (2021)
Images based on RGB pixel values were used to measure the extinction coefficient of aerosols suspended in an atmospheric state. The pixel values of the object-image depend on the target-object reflection ratio, reflection direction, object type, dist
Externí odkaz:
https://doaj.org/article/eeee74d278354ab28a0b9483a65cd614
Publikováno v:
Journal of Korean Society for Atmospheric Environment. 39:94-106
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::46a680e9592cfec11dcf0182128d04d1
https://doi.org/10.5572/kosae.2023.39.1.94
https://doi.org/10.5572/kosae.2023.39.1.94
Autor:
Gahyeong Kim, Juseon Shin, Dukhyeon Kim, Juhyeon Sim, Sohee Joo, Jeong Hun Kim, Sung Hwan Cho, Cheon Woong Kang, Youngmin Noh
Publikováno v:
Journal of Korean Society for Atmospheric Environment. 38:414-420
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e9af4059231f195cbcff51c1173cd29a
https://doi.org/10.5572/kosae.2022.38.3.414
https://doi.org/10.5572/kosae.2022.38.3.414
The mass extinction efficiency(MEE), which indicates the degree of aerosol extinction(scatter and absorption) per unit PM mass concentration, is an important factor in converting optical concentration into mass concentration. Because its value varies
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::53d6e7aacde880bfb0bf7dcf300a899b
https://doi.org/10.5194/egusphere-egu23-3072
https://doi.org/10.5194/egusphere-egu23-3072
