The impact threshold of the aerosol radiative forcing on the boundary layer structure in the pollution region
<p>Recently, there has been increasing interest in the relation between particulate matter (PM) pollution and atmospheric-boundary-layer (ABL) structure. This study aimed to qualitatively assess the interaction between PM and ABL structure in essence and further quantitatively estimate aerosol...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Copernicus Publications
2021-04-01
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| Series: | Atmospheric Chemistry and Physics |
| Online Access: | https://acp.copernicus.org/articles/21/5739/2021/acp-21-5739-2021.pdf |
| _version_ | 1818720651611996160 |
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| author | D. Zhao D. Zhao J. Xin J. Xin J. Xin C. Gong J. Quan Y. Wang Y. Wang G. Tang Y. Ma L. Dai X. Wu G. Liu Y. Ma |
| author_facet | D. Zhao D. Zhao J. Xin J. Xin J. Xin C. Gong J. Quan Y. Wang Y. Wang G. Tang Y. Ma L. Dai X. Wu G. Liu Y. Ma |
| author_sort | D. Zhao |
| collection | DOAJ |
| description | <p>Recently, there has been increasing interest in the relation between particulate matter (PM) pollution and atmospheric-boundary-layer (ABL) structure. This study aimed to qualitatively assess the interaction between PM and ABL structure in essence and further quantitatively estimate
aerosol radiative forcing (ARF) effects on the ABL structure. Multi-period
comparative analysis indicated that the key to determining whether haze
outbreak or dissipation occurs is whether the ABL structure satisfies the
relevant conditions. However, the ABL structure change was in turn highly
related to the PM level and ARF. <span class="inline-formula">|</span>SFC<span class="inline-formula">−</span>ATM<span class="inline-formula">|</span> (SFC and ATM are
the ARFs at the surface and interior of the atmospheric column,
respectively) is the absolute difference between ground and atmosphere layer ARFs, and the <span class="inline-formula">|</span>SFC<span class="inline-formula">−</span>ATM<span class="inline-formula">|</span> change is linearly related to the PM concentrations. However, the influence of ARF on the boundary layer
structure is nonlinear. With increasing <span class="inline-formula">|</span>SFC<span class="inline-formula">−</span>ATM<span class="inline-formula">|</span>, the turbulence
kinetic energy (TKE)
level exponentially decreased, which was notable in the lower layers or ABL, but disappeared at high altitudes or above the ABL. Moreover, the ARF effects
threshold on the ABL structure was determined for the first time, namely
once <span class="inline-formula">|</span>SFC<span class="inline-formula">−</span>ATM<span class="inline-formula">|</span> exceeded <span class="inline-formula">∼55</span> W m<span class="inline-formula"><sup>−2</sup></span>, the ABL structure tends to quickly stabilize and thereafter change little
with increasing ARF. The threshold of the ARF effects on the boundary layer
structure could provide useful information for relevant atmospheric-environment improvement measures and policies, such as formulating phased
air pollution control objectives.</p> |
| first_indexed | 2024-12-17T20:26:14Z |
| format | Article |
| id | doaj.art-048a011ea1194ef0b1610601ec22d45e |
| institution | Directory Open Access Journal |
| issn | 1680-7316 1680-7324 |
| language | English |
| last_indexed | 2024-12-17T20:26:14Z |
| publishDate | 2021-04-01 |
| publisher | Copernicus Publications |
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| series | Atmospheric Chemistry and Physics |
| spelling | doaj.art-048a011ea1194ef0b1610601ec22d45e2022-12-21T21:33:46ZengCopernicus PublicationsAtmospheric Chemistry and Physics1680-73161680-73242021-04-01215739575310.5194/acp-21-5739-2021The impact threshold of the aerosol radiative forcing on the boundary layer structure in the pollution regionD. Zhao0D. Zhao1J. Xin2J. Xin3J. Xin4C. Gong5J. Quan6Y. Wang7Y. Wang8G. Tang9Y. Ma10L. Dai11X. Wu12G. Liu13Y. Ma14State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry (LAPC), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, ChinaCollege of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing 100049, ChinaState Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry (LAPC), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, ChinaCollege of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing 100049, ChinaCollaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Nanjing University of Information Science and Technology, Nanjing 210044, ChinaInstitute of Arid Meteorology, China Meteorological Administration, Lanzhou 730020, ChinaInstitute of Urban Meteorology, Chinese Meteorological Administration, Beijing 100089, ChinaState Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry (LAPC), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, ChinaCollege of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing 100049, ChinaState Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry (LAPC), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, ChinaState Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry (LAPC), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, ChinaState Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry (LAPC), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, ChinaState Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry (LAPC), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, ChinaState Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry (LAPC), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, ChinaState Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry (LAPC), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China<p>Recently, there has been increasing interest in the relation between particulate matter (PM) pollution and atmospheric-boundary-layer (ABL) structure. This study aimed to qualitatively assess the interaction between PM and ABL structure in essence and further quantitatively estimate aerosol radiative forcing (ARF) effects on the ABL structure. Multi-period comparative analysis indicated that the key to determining whether haze outbreak or dissipation occurs is whether the ABL structure satisfies the relevant conditions. However, the ABL structure change was in turn highly related to the PM level and ARF. <span class="inline-formula">|</span>SFC<span class="inline-formula">−</span>ATM<span class="inline-formula">|</span> (SFC and ATM are the ARFs at the surface and interior of the atmospheric column, respectively) is the absolute difference between ground and atmosphere layer ARFs, and the <span class="inline-formula">|</span>SFC<span class="inline-formula">−</span>ATM<span class="inline-formula">|</span> change is linearly related to the PM concentrations. However, the influence of ARF on the boundary layer structure is nonlinear. With increasing <span class="inline-formula">|</span>SFC<span class="inline-formula">−</span>ATM<span class="inline-formula">|</span>, the turbulence kinetic energy (TKE) level exponentially decreased, which was notable in the lower layers or ABL, but disappeared at high altitudes or above the ABL. Moreover, the ARF effects threshold on the ABL structure was determined for the first time, namely once <span class="inline-formula">|</span>SFC<span class="inline-formula">−</span>ATM<span class="inline-formula">|</span> exceeded <span class="inline-formula">∼55</span> W m<span class="inline-formula"><sup>−2</sup></span>, the ABL structure tends to quickly stabilize and thereafter change little with increasing ARF. The threshold of the ARF effects on the boundary layer structure could provide useful information for relevant atmospheric-environment improvement measures and policies, such as formulating phased air pollution control objectives.</p>https://acp.copernicus.org/articles/21/5739/2021/acp-21-5739-2021.pdf |
| spellingShingle | D. Zhao D. Zhao J. Xin J. Xin J. Xin C. Gong J. Quan Y. Wang Y. Wang G. Tang Y. Ma L. Dai X. Wu G. Liu Y. Ma The impact threshold of the aerosol radiative forcing on the boundary layer structure in the pollution region Atmospheric Chemistry and Physics |
| title | The impact threshold of the aerosol radiative forcing on the boundary layer structure in the pollution region |
| title_full | The impact threshold of the aerosol radiative forcing on the boundary layer structure in the pollution region |
| title_fullStr | The impact threshold of the aerosol radiative forcing on the boundary layer structure in the pollution region |
| title_full_unstemmed | The impact threshold of the aerosol radiative forcing on the boundary layer structure in the pollution region |
| title_short | The impact threshold of the aerosol radiative forcing on the boundary layer structure in the pollution region |
| title_sort | impact threshold of the aerosol radiative forcing on the boundary layer structure in the pollution region |
| url | https://acp.copernicus.org/articles/21/5739/2021/acp-21-5739-2021.pdf |
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