Detection of the dispersion and residence of volcanic SO2 and sulfate aerosol from Nabro in 2011
Detection of the dispersion and residence of volcanic SO2 and sulfate aerosol from Nabro in 2011
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2011年Nabro火山SO2和硫酸盐气溶胶的弥散和停留检测
DOI：
10.1016/j.atmosenv.2018.10.022
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发表时间：
2019-01
影响因子：
5
通讯作者：
Xiuqi Fang
中科院分区：
文献类型：
--
作者：
Yang Liu;Petri K.E. Pellikkac;Hansunbai Li;Xiuqi Fang
持续探测火山羽流在对流层和平流层下部的扩散和滞留，对于增进对火山喷发在气候变化中的作用的了解至关重要。我们报道了OMI传感器对2011年6月12日厄立特里亚纳布罗火山喷发的SO2火山产生的对流层和平流层中火山羽流的扩散和滞留进行了为期3个月的连续探测。利用2005年、2007年和2013年3年的月平均SO2浓度估算了对流层和平流层下部3个不同高度层的背景SO2浓度，当时未发生大规模火山爆发。我们还追踪了纳布罗火山喷发后前3个月火山SO2的扩散路径和浓度，并检测到了硫酸盐气溶胶的出现和消散，硫酸盐气溶胶是火山SO2转化的产物。结果表明，纳布罗火山12日喷发后，火山羽流向北半球中纬度(30°N-60°N)扩散，并通过西风急流加载。6月23日，对流层中层(TRM)和对流层低层(TRL)火山SO2停止向东扩散，并在西太平洋上空消散。6月26日，位于对流层上部和平流层下部(STL)的火山SO2到达了中美洲的墨西哥，几乎包围了低纬度和中纬度的部分地区。6月28日，火山喷发的SO2羽流在海平面上呈均匀分布。喷发后37天，STL中的火山SO2均匀地包围着北半球，STL中的硫酸盐气溶胶大部分覆盖在中低纬度地区，SO2日浓度仍高于背景值。纳布罗火山喷发后1个月，全球SO2日平均浓度降至正常值，但低纬地区SO2和硫酸盐气溶胶日浓度仍居高不下，并在纳布罗喷发后3个月内消散。
Continuous detection of dispersion and residence of volcanic plumes in troposphere and lower stratosphere is vitally important for improving the understanding on the role of volcano eruptions in climate change. We report a 3-month continuous detection of dispersion and residence of volcanic plumes in the troposphere and stratosphere generated from the volcanic SO2erupted by Nabro in Eritrea on June 12th, 2011 observed by the OMI sensor. The background SO2concentration of 3 different height layers in troposphere and lower stratosphere were estimated by the 3-year-average daily concentration of monthly SO2in 2005, 2007 and 2013, when there were no large explosive volcanic eruptions occurring. We also traced the diffusion path and the concentration of volcanic SO2for the first 3 months after Nabro's eruption, and detected the appearance and dissipation of sulfate aerosols, which is a product converted from volcanic SO2. The results show that after Nabro erupted on June 12th, the volcanic plumes spread to middle latitudes (30°N-60°N) of Northern Hemisphere and loading by westerly jet. The volcanic SO2in middle troposphere layer (TRM) and lower troposphere layer (TRL) stopped eastward spreading, and dissipated over the western Pacific Ocean on June 23rd. On June 26th, the volcanic SO2in upper troposphere and lower stratosphere (STL) reached Mexico in Central America, and almost encircled the low latitudes and parts of middle latitudes. On June 28th, the volcanic SO2plume showed an even distribution in STL. 37 days after the eruption, the volcanic SO2in STL encircled the Northern Hemisphere evenly, sulfate aerosols in STL largely covered the low and middle latitudes and the daily concentration of SO2was still higher than the background value. One month after the eruption, the global mean daily concentration of SO2dropped to the normal value, but the daily concentration of SO2and sulfate aerosols in low latitudes remained high, and dissipated not earlier than 3 months after the eruption of Nabro.
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影响因子：
--
作者：
J. Haywood;Andy Jones;L. Clarisse;A. Bourassa;J. Barnes;P. Telford;N. Bellouin;O. Boucher;P. Agnew;C. Clerbaux;P. Coheur;D. Degenstein;P. Braesicke
通讯作者：
J. Haywood;Andy Jones;L. Clarisse;A. Bourassa;J. Barnes;P. Telford;N. Bellouin;O. Boucher;P. Agnew;C. Clerbaux;P. Coheur;D. Degenstein;P. Braesicke
影响因子：
2.5
作者：
E. Ziegel
通讯作者：
E. Ziegel
DOI：
10.1201/b17767-22
发表时间：
2012-08
期刊：
Actuarial Mathematics for Life Contingent Risks
影响因子：
--
作者：
Francis Albarede
通讯作者：
Francis Albarede
DOI：
10.1098/rsta.1970.0010
发表时间：
1970
期刊：
Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences
影响因子：
--
作者：
Byron Lamb;H. Lamb
通讯作者：
Byron Lamb;H. Lamb
影响因子：
64.8
作者：
BLUTH, GJS;SCHNETZLER, CC;WALTER, LS
通讯作者：
WALTER, LS