Link Between Arctic Tropospheric BrO Explosion Observed From Space and Sea‐Salt Aerosols From Blowing Snow Investigated Using Ozone Monitoring Instrument BrO Data and GEOS‐5 Data Assimilation System
Link Between Arctic Tropospheric BrO Explosion Observed From Space and Sea‐Salt Aerosols From Blowing Snow Investigated Using Ozone Monitoring Instrument BrO Data and GEOS‐5 Data Assimilation System
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使用臭氧监测仪器 BrO 数据和 GEOS-5 数据同化系统研究从太空观测到的北极对流层 BrO 爆炸与吹雪产生的海盐气溶胶之间的联系
DOI：
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发表时间：
2018
期刊：
影响因子：
--
通讯作者：
M. Roozendael
中科院分区：
文献类型：
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作者：
Sungyeon Choi;N. Theys;R. Salawitch;P. Wales;J. Joiner;T. Canty;K. Chance;R. Suleiman;S. Palm;R. Cullather;A. Darmenov;A. Silva;T. Kurosu;F. Hendrick;M. Roozendael
溴自由基（Br + BrO）是重要的大气物种，因为它们能够催化破坏臭氧，以及它们对许多痕量气体（包括二甲硫醚和汞）的氧化途径的潜在影响。最近的研究报告称，利用对溴氧的天基观测，对流层溴氧在大面积地区迅速增强（所谓的“溴氧爆炸”），这与极地春季发生的近地表臭氧消耗有关。然而，活性溴的来源和引发这些BrO爆炸的机制尚不确定。在这项研究中，我们调查了北极BrO爆炸和两个拟议的活性溴来源之间的关系：由吹雪和第一年（季节性）海冰产生的海盐气溶胶（SSA）。我们使用对流层柱BrO从臭氧监测仪器（OMI），结合戈达德地球观测系统版本5（GEOS-5）的数据同化系统提供的美国国家航空航天局全球模拟和同化办公室。案例研究表明，OMI观测到的BrO爆炸的时间和空间范围与GEOS-5模拟的北极春季吹雪产生的SSA之间存在很强的关联。此外，在OMI的11年记录中观察到的BrO爆炸事件的频率与北极模拟SSA排放通量的时间序列具有显着相关性，与基于卫星的第一年海冰面积的时间序列几乎没有相关性。因此，我们得出结论，SSA产生的吹雪是一个重要的因素，在形成从空间观察到的BrO爆炸在北极春季。
Bromine radicals (Br + BrO) are important atmospheric species owing to their ability to catalytically destroy ozone as well as their potential impacts on the oxidative pathways of many trace gases, including dimethylsulfide and mercury. Using space‐based observations of BrO, recent studies have reported rapid enhancements of tropospheric BrO over large areas (so called “BrO explosions”) connected to near‐surface ozone depletion occurring in polar spring. However, the source(s) of reactive bromine and mechanism(s) that initiate these BrO explosions are uncertain. In this study, we investigate the relationships between Arctic BrO explosions and two of the proposed sources of reactive bromine: sea‐salt aerosol (SSA) generated from blowing snow and first‐year (seasonal) sea ice. We use tropospheric column BrO derived from the Ozone Monitoring Instrument (OMI) in conjunction with the Goddard Earth Observing System Version 5 (GEOS‐5) data assimilation system provided by National Aeronautics and Space Administration Global Modeling and Assimilation Office. Case studies demonstrate a strong association between the temporal and spatial extent of OMI‐observed BrO explosions and the GEOS‐5 simulated blowing snow‐generated SSA during Arctic spring. Furthermore, the frequency of BrO explosion events observed over the 11‐year record of OMI exhibits significant correlation with a time series of the simulated SSA emission flux in the Arctic and little to no correlation with a time series of satellite‐based first‐year sea ice area. Therefore, we conclude that SSA generated by blowing snow is an important factor in the formation of the BrO explosion observed from space during Arctic spring.
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DOI：
10.1002/2015jd023711
发表时间：
2016-01
期刊：
Journal of Geophysical Research: Atmospheres
影响因子：
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作者：
Xiaoyi Zhao;Kimberly Strong;Colin E. Adams;Robyn Schofield;Xin Yang;Andreas Richter;U. Friess;A. Blechschmidt;Ja Ho Koo
通讯作者：
Xiaoyi Zhao;Kimberly Strong;Colin E. Adams;Robyn Schofield;Xin Yang;Andreas Richter;U. Friess;A. Blechschmidt;Ja Ho Koo
影响因子：
6.3
作者：
P. Peterson;W. Simpson;K. Pratt;P. Shepson;U. Friess;J. Zielcke;U. Platt;S. Walsh;S. Nghiem-
通讯作者：
P. Peterson;W. Simpson;K. Pratt;P. Shepson;U. Friess;J. Zielcke;U. Platt;S. Walsh;S. Nghiem-
一氧化溴 MAX-DOAS 探测活性溴事件的水平和垂直结构
影响因子：
6.3
作者：
Simpson;Peterson;Frieß;Sihler;Lampel;Shepson;Halfacre;Nghiem
通讯作者：
Nghiem
对再生海冰盖上方北极大气溴的形成和分布的现场和卫星观测
影响因子：
--
作者：
Son V. Nghiem;Ignatius G. Rigor;Andreas Richter;John P. Burrows;Paul B. Shepson;Jan Bottenheim;David G. Barber;Alexandra Steffen;Jeff Latonas;Feiyue Wang;Gary Stern;Pablo Clemente-Colón;Seelye Martin;Dorothy K. Hall;Lars Kaleschke;Philip Ta
通讯作者：
Philip Ta
影响因子：
5.2
作者：
Breider, T. J.;Chipperfield, M. P.;Spracklen, D. V.
通讯作者：
Spracklen, D. V.