Observation-based estimation of aerosol-induced reduction of planetary boundary layer height
Observation-based estimation of aerosol-induced reduction of planetary boundary layer height
复制标题
基于观测的气溶胶引起的行星边界层高度减少的估计
DOI：
10.1007/s00376-016-6259-8
复制
发表时间：
2017-08
影响因子：
5.8
通讯作者：
Fu Congbin
中科院分区：
文献类型：
--
作者：
Zou Jun;Sun Jianning;Ding Aijun;Wang Minghuai;Guo Weidong;Fu Congbin
Radiative aerosols are known to influence the surface energy budget and hence the evolution of the planetary boundary layer. In this study, we develop a method to estimate the aerosol-induced reduction in the planetary boundary layer height (PBLH) based on two years of ground-based measurements at a site, the Station for Observing Regional Processes of the Earth System (SORPES), at Nanjing University, China, and radiosonde data from the meteorological station of Nanjing. The observations show that increased aerosol loads lead to a mean decrease of 67.1 W m−2for downward shortwave radiation (DSR) and a mean increase of 19.2 W m−2for downward longwave radiation (DLR), as well as a mean decrease of 9.6 Wm−2for the surface sensible heat flux (SHF) in the daytime. The relative variations of DSR, DLR and SHF are shown as a function of the increment of column mass concentration of particulate matter (PM2.5). High aerosol loading can significantly increase the atmospheric stability in the planetary boundary layer during both daytime and nighttime. Based on the statistical relationship between SHF and PM2.5column mass concentrations, the SHF under clean atmospheric conditions (same as the background days) is derived. In this case, the derived SHF, together with observed SHF, are then used to estimate changes in the PBLH related to aerosols. Our results suggest that the PBLH decreases more rapidly with increasing aerosol loading at high aerosol loading. When the daytime mean column mass concentration of PM2.5reaches 200 mg m−2, the decrease in the PBLH at 1600 LST (local standard time) is about 450 m.
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影响因子：
5
作者：
S. Satheesh;K. Moorthy
通讯作者：
S. Satheesh;K. Moorthy
京津冀及周边地区雾霾期间气溶胶与 PBL 气象相互作用的中尺度模拟研究 - 第 1 部分：气溶胶分布和气象特征
DOI：
10.5194/acp-15-3257-2015
发表时间：
2014-12
期刊：
Atmos. Chem. Phys.
影响因子：
--
作者：
H. Wang;M. Xue;X. Y. Zhang;H. L. Liu;C. H. Zhe
通讯作者：
C. H. Zhe
影响因子：
8.9
作者：
P. Mason
通讯作者：
P. Mason
影响因子：
--
作者：
B. Johnson;B. Heese;S. McFarlane;P. Chazette;A. Jones;N. Bellouin
通讯作者：
B. Johnson;B. Heese;S. McFarlane;P. Chazette;A. Jones;N. Bellouin
影响因子：
3.1
作者：
D. Waliser;K. Lau;Jae-Hoon Kim
通讯作者：
D. Waliser;K. Lau;Jae-Hoon Kim