Satellite-Based Aerosol Classification for Capital Cities in Asia Using a Random Forest Model
Aerosol types in Asian capital cities were classified using a random forest (RF) satellite-based aerosol classification model during 2018–2020 in an investigation of the contributions of aerosol types, with or without Aerosol Robotic Network (AERONET) observations. In this study, we used the recentl...
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ftdoajarticles:oai:doaj.org/article:234c2f9a34a740debdd93fc0315004b6 2023-05-15T13:06:12+02:00 Satellite-Based Aerosol Classification for Capital Cities in Asia Using a Random Forest Model Wonei Choi Hyeongwoo Kang Dongho Shin Hanlim Lee 2021-06-01T00:00:00Z https://doi.org/10.3390/rs13132464 https://doaj.org/article/234c2f9a34a740debdd93fc0315004b6 EN eng MDPI AG https://www.mdpi.com/2072-4292/13/13/2464 https://doaj.org/toc/2072-4292 doi:10.3390/rs13132464 2072-4292 https://doaj.org/article/234c2f9a34a740debdd93fc0315004b6 Remote Sensing, Vol 13, Iss 2464, p 2464 (2021) aerosol classification aerosol remote sensing space-borne remote sensing aerosol type machine learning seasonal aerosol variation Science Q article 2021 ftdoajarticles https://doi.org/10.3390/rs13132464 2022-12-31T00:45:46Z Aerosol types in Asian capital cities were classified using a random forest (RF) satellite-based aerosol classification model during 2018–2020 in an investigation of the contributions of aerosol types, with or without Aerosol Robotic Network (AERONET) observations. In this study, we used the recently developed RF aerosol classification model to detect and classify aerosols into four types: pure dust, dust-dominated aerosols, strongly absorbing aerosols, and non-absorbing aerosols. Aerosol optical and microphysical properties for each aerosol type detected by the RF model were found to be reasonably consistent with those for typical aerosol types. In Asian capital cities, pollution-sourced aerosols, especially non-absorbing aerosols, were found to predominate, although Asian cities also tend to be seasonally affected by natural dust aerosols, particularly in East Asia (March–May) and South Asia (March–August). No specific seasonal effects on aerosol type were detected in Southeast Asia, where there was a predominance of non-absorbing aerosols. The aerosol types detected by the RF model were compared with those identified by other aerosol classification models. This study indicates that the satellite-based RF model may be used as an alternative in the absence of AERONET sites or observations. Article in Journal/Newspaper Aerosol Robotic Network Directory of Open Access Journals: DOAJ Articles Remote Sensing 13 13 2464 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
aerosol classification aerosol remote sensing space-borne remote sensing aerosol type machine learning seasonal aerosol variation Science Q |
spellingShingle |
aerosol classification aerosol remote sensing space-borne remote sensing aerosol type machine learning seasonal aerosol variation Science Q Wonei Choi Hyeongwoo Kang Dongho Shin Hanlim Lee Satellite-Based Aerosol Classification for Capital Cities in Asia Using a Random Forest Model |
topic_facet |
aerosol classification aerosol remote sensing space-borne remote sensing aerosol type machine learning seasonal aerosol variation Science Q |
description |
Aerosol types in Asian capital cities were classified using a random forest (RF) satellite-based aerosol classification model during 2018–2020 in an investigation of the contributions of aerosol types, with or without Aerosol Robotic Network (AERONET) observations. In this study, we used the recently developed RF aerosol classification model to detect and classify aerosols into four types: pure dust, dust-dominated aerosols, strongly absorbing aerosols, and non-absorbing aerosols. Aerosol optical and microphysical properties for each aerosol type detected by the RF model were found to be reasonably consistent with those for typical aerosol types. In Asian capital cities, pollution-sourced aerosols, especially non-absorbing aerosols, were found to predominate, although Asian cities also tend to be seasonally affected by natural dust aerosols, particularly in East Asia (March–May) and South Asia (March–August). No specific seasonal effects on aerosol type were detected in Southeast Asia, where there was a predominance of non-absorbing aerosols. The aerosol types detected by the RF model were compared with those identified by other aerosol classification models. This study indicates that the satellite-based RF model may be used as an alternative in the absence of AERONET sites or observations. |
format |
Article in Journal/Newspaper |
author |
Wonei Choi Hyeongwoo Kang Dongho Shin Hanlim Lee |
author_facet |
Wonei Choi Hyeongwoo Kang Dongho Shin Hanlim Lee |
author_sort |
Wonei Choi |
title |
Satellite-Based Aerosol Classification for Capital Cities in Asia Using a Random Forest Model |
title_short |
Satellite-Based Aerosol Classification for Capital Cities in Asia Using a Random Forest Model |
title_full |
Satellite-Based Aerosol Classification for Capital Cities in Asia Using a Random Forest Model |
title_fullStr |
Satellite-Based Aerosol Classification for Capital Cities in Asia Using a Random Forest Model |
title_full_unstemmed |
Satellite-Based Aerosol Classification for Capital Cities in Asia Using a Random Forest Model |
title_sort |
satellite-based aerosol classification for capital cities in asia using a random forest model |
publisher |
MDPI AG |
publishDate |
2021 |
url |
https://doi.org/10.3390/rs13132464 https://doaj.org/article/234c2f9a34a740debdd93fc0315004b6 |
genre |
Aerosol Robotic Network |
genre_facet |
Aerosol Robotic Network |
op_source |
Remote Sensing, Vol 13, Iss 2464, p 2464 (2021) |
op_relation |
https://www.mdpi.com/2072-4292/13/13/2464 https://doaj.org/toc/2072-4292 doi:10.3390/rs13132464 2072-4292 https://doaj.org/article/234c2f9a34a740debdd93fc0315004b6 |
op_doi |
https://doi.org/10.3390/rs13132464 |
container_title |
Remote Sensing |
container_volume |
13 |
container_issue |
13 |
container_start_page |
2464 |
_version_ |
1765996257473462272 |