Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019JD032139 |
Arctic Reactive Bromine Events Occur in Two Distinct Sets of Environmental Conditions: A Statistical Analysis of 6 Years of Observations | |
Swanson, William F.1,2; Graham, Kelly A.3; Halfacre, John W.4; Holmes, Christopher D.3; Shepson, Paul B.5,6; Simpson, William R.1,2 | |
2020-05-27 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2020 |
卷号 | 125期号:10 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; England |
英文摘要 | Tropospheric bromine radicals in the Arctic efficiently remove ambient ozone and oxidize gaseous elemental mercury. Ground-based bromine monoxide (BrO) observations from the Arctic Ocean and Utqiagvik (formerly Barrow) are combined with Modern Era Retrospective Analysis for Research and Applications version 2 reanalysis meteorological fields to determine how BrO varies with environmental conditions. The mean seasonal BrO abundance varies from year to year (p < 0.001), while regional variance in mean BrO is not statistically significant (p > 0.11). Principal component analysis derived three important principal components from the environmental data set. The third principal component explains the most variance in BrO and is correlated with low ozone and cold temperatures. This principal component is consistent with high BrO during ozone depletion events at cold temperatures and can work concurrently with each of the other two principal compoynents to generate two distinct environmental types of high BrO events. The first principal component consists of a less-stable, thick, mixed layer and low atmospheric pressure and is consistent with observations of high BrO in low-pressure systems (e.g., storms). The second principal component consists of cold and stable conditions and is consistent with high BrO under surface-based temperature inversions. Our principal component regression model predicted the both the vertical column density of BrO in the lowest 2 km of the troposphere (R = 0.45) and the vertical column density of BrO in the lowest 200 m (R = 0.54). This statistical description of two types of reactive bromine events may help to harmonize space-based and ground-based observations. |
英文关键词 | tropospheric chemistry Arctic bromine statistical analysis meteorology sea ice |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000537788100015 |
WOS关键词 | OZONE DEPLETION EVENTS ; TROPOSPHERIC BRO COLUMNS ; SEA-SALT AEROSOLS ; BOUNDARY-LAYER ; SURFACE OZONE ; BLOWING SNOW ; VERTICAL-DISTRIBUTION ; HALOGEN ACTIVATION ; MOLECULAR BROMINE ; EXPLOSION EVENT |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/280232 |
专题 | 气候变化 |
作者单位 | 1.Univ Alaska Fairbanks, Dept Chem & Biochem, Fairbanks, AK 99775 USA; 2.Univ Alaska Fairbanks, Inst Geophys, Fairbanks, AK 99775 USA; 3.Florida State Univ, Dept Earth Ocean & Atmospher Sci, Tallahassee, FL 32306 USA; 4.Univ York, Dept Chem, York, N Yorkshire, England; 5.Purdue Univ, Dept Chem, W Lafayette, IN 47907 USA; 6.SUNY Stony Brook, Sch Marine & Atmospher Sci, Stony Brook, NY USA |
推荐引用方式 GB/T 7714 | Swanson, William F.,Graham, Kelly A.,Halfacre, John W.,et al. Arctic Reactive Bromine Events Occur in Two Distinct Sets of Environmental Conditions: A Statistical Analysis of 6 Years of Observations[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2020,125(10). |
APA | Swanson, William F.,Graham, Kelly A.,Halfacre, John W.,Holmes, Christopher D.,Shepson, Paul B.,&Simpson, William R..(2020).Arctic Reactive Bromine Events Occur in Two Distinct Sets of Environmental Conditions: A Statistical Analysis of 6 Years of Observations.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,125(10). |
MLA | Swanson, William F.,et al."Arctic Reactive Bromine Events Occur in Two Distinct Sets of Environmental Conditions: A Statistical Analysis of 6 Years of Observations".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 125.10(2020). |
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