Role of vertical advection and diffusion in long-range PM2.5 transport in Northeast Asia

Kim, Eunhye; Kim, Byeong-Uk; Kang, Yoon-Hee; Kim, Hyun Cheol; Kim, Soontae

doi:10.1016/j.envpol.2022.120997

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Role of vertical advection and diffusion in long-range PM2.5 transport in Northeast Asia

2023
By Kim, Eunhye ; Kim, Byeong-Uk ; Kang, Yoon-Hee ; ...
Source: Environmental Pollution, 320, 120997

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Journal Title:

Environmental Pollution
Personal Author:

Kim, Eunhye ; Kim, Byeong-Uk ; Kang, Yoon-Hee ; Kim, Hyun Cheol ; Kim, Soontae

Kim, Eunhye ; Kim, Byeong-Uk ; Kang, Yoon-Hee ; Kim, Hyun Cheol ; Kim, Soontae Less -
NOAA Program & Office:

OAR (Oceanic and Atmospheric Research) ; ARL (Air Resources Laboratory) ; CISESS (Cooperative Institute for Satellite Earth System Studies)

OAR (Oceanic and Atmospheric Research) ; ARL (Air Resources Laboratory) ; CISESS (Cooperative Institute for Satellite Earth System Studies) Less -
Description:

This study quantitatively analyzed the role of vertical mixing in long-range transport (LRT) of PM2.5 during its high concentration episode in Northeast Asia toward the end of February 2014. The PM2.5 transport process from an upwind to downwind area was examined using the Community Multi-scale Air Quality (CMAQ) modeling system with its instrumented tool and certain code modifications. We identified serial distinctive roles of vertical advection (ZADV) and diffusion (VDIF) processes. The surface PM2.5 in an upwind area became aloft by VDIF — during daytime —to the planetary boundary layer (PBL) altitude of 1 km or lower. In contrast, ZADV updraft
Keywords:

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General Medicine Health, Toxicology And Mutagenesis Pollution Toxicology
Source:

Environmental Pollution, 320, 120997
DOI:

https://doi.org/10.1016/j.envpol.2022.120997
ISSN:

0269-7491
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PDF
Publisher:

Elsevier BV
Document Type:

Journal Article
Funding:

Grant no. NA19NES4320002
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https://creativecommons.org/licenses/by/4.0/
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CC BY
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urn:sha256:84687120881ede74588a2f031a0b5286758893fcd32d869154bb9ca5ac02ef0b
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https://repository.library.noaa.gov/view/noaa/53657/noaa_53657_DS1.pdf
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Role of vertical advection and diffusion in long-range PM2.5 transport in Northeast Asia

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