The Seesaw Pattern of PM 2.5 Interannual Anomalies Between Beijing‐Tianjin‐Hebei and Yangtze River Delta Across Eastern China in Winter

Liu, Xiaohui; Zhu, Bin; Zhu, Tong; Liao, Hong

doi:10.1029/2021gl095878

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The Seesaw Pattern of PM 2.5 Interannual Anomalies Between Beijing‐Tianjin‐Hebei and Yangtze River Delta Across Eastern China in Winter

2022
By Liu, Xiaohui ; Zhu, Bin ; Zhu, Tong ; ...
Source: Geophysical Research Letters, 49(2)

[PDF-2.65 MB]

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Journal Title:

Geophysical Research Letters
Personal Author:

Liu, Xiaohui ; Zhu, Bin ; Zhu, Tong ; Liao, Hong

Liu, Xiaohui ; Zhu, Bin ; Zhu, Tong ; Liao, Hong Less -
NOAA Program & Office:

NESDIS (National Environmental Satellite, Data, and Information Service) ; STAR (Center for Satellite Applications and Research)

NESDIS (National Environmental Satellite, Data, and Information Service) ; STAR (Center for Satellite Applications and Research) Less -
Description:

Since 2013, the winter mean fine particulate matter (PM2.5) had been decreased significantly due to stringent emission controls in most of China. Nevertheless, we found a seesaw pattern of PM2.5 interannual anomalies between Beijing-Tianjin-Hebei (BTH) and Yangtze River Delta (YRD). Using the multiple linear regression method, meteorology-driven PM2.5 interannual anomalies show that the low (high) PM2.5 relative difference between BTH and YRD (RDB&Y) was associated with the strong (weak) East Asian winter monsoon (EAWM). The strong EAWM transported more air pollutants from BTH to YRD. During the COVID-19 lockdown period, due to the weak EAWM, air pollution still occurred in northern BTH, while the PM2.5
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General Earth And Planetary Sciences Geophysics
Source:

Geophysical Research Letters, 49(2)
DOI:

https://doi.org/10.1029/2021gl095878
ISSN:

0094-8276;1944-8007;
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PDF
Publisher:

American Geophysical Union (AGU)
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Journal Article
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Main Document Checksum:

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urn:sha256:864b6ec79b2bc9634328375ef51a7151793b0bcf783564acb71cd6d845afbc13
Download URL:

https://repository.library.noaa.gov/view/noaa/53879/noaa_53879_DS1.pdf
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