Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019JD031111 |
Modeled and Observed Volcanic Aerosol Control on Stratospheric NOy and Cl-y | |
Zambri, Brian1; Solomon, Susan1; Kinnison, Douglas E.2; Mills, Michael J.2; Schmidt, Anja3,4; Neely, Ryan R.5,6; Bourassa, Adam E.7; Degenstein, Douglas A.7; Roth, Chris Z.7 | |
2019-09-12 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2019 |
文章类型 | Article;Early Access |
语种 | 英语 |
国家 | USA; England; Canada |
英文摘要 | Decreases in stratospheric NOx associated with enhanced aerosol have been observed after large volcanic eruptions, for example, after the eruption of Mount Pinatubo in 1991. While the 1991 Mount Pinatubo eruption was the last large explosive eruption, recent studies have shed light on the impacts of moderate-sized eruptions since the year 2000 on the global stratospheric aerosol budget. We use an ensemble of simulations from a coupled climate-chemistry model to quantify and analyze changes in NO and NO2 (NOx), N2O5, HNO3, ClO, and ClONO2 during periods of increased stratospheric volcanic aerosol concentrations since 2000. By using an ensemble approach, we are able to distinguish forced responses from internal variability. We also compare the model ensemble results to satellite measurements of these changes in atmospheric composition, including measurements from the Optical Spectrograph and Infrared Imaging Spectrometer on the Odin satellite and the Aura Microwave Limb Sounder. We find decreases in stratospheric NOx concentrations up to 20 hPa, consistent with increases in stratospheric HNO3 concentrations. The HNO3 perturbations also extend higher, up to 5 hPa, associated with periods of increased volcanic aerosol concentrations in both model simulations and observations, though correlations with volcanic aerosol are considerably higher in the model simulations. The model simulates increases in ClO at altitudes and magnitudes similar to the NOx reductions, but this response is below the detectable limit in the available observations (100 pptv). We also demonstrate the value of accounting for transport-related anomalies of atmospheric trace gases by regression onto N2O anomalies. |
英文关键词 | volcanic eruptions nitrogen atmospheric chemistry |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000486871600001 |
WOS关键词 | EARTH SYSTEM MODEL ; ODIN-OSIRIS ; SOLAR-CYCLE ; SAGE-II ; OZONE ; CHEMISTRY ; CLIMATE ; VARIABILITY ; SATELLITE ; NITROGEN |
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/187020 |
专题 | 气候变化 |
作者单位 | 1.MIT, Dept Earth Atmospher & Planetary Sci, Cambridge, MA 02139 USA; 2.Natl Ctr Atmospher Res, Atmospher Chem Observat & Modeling Lab, POB 3000, Boulder, CO 80307 USA; 3.Univ Cambridge, Dept Chem, Cambridge, England; 4.Univ Cambridge, Dept Geog, Cambridge, England; 5.Univ Leeds, Natl Ctr Atmospher Sci, Leeds, W Yorkshire, England; 6.Univ Leeds, Sch Earth & Environm, Leeds, W Yorkshire, England; 7.Univ Saskatchewan, Inst Space & Atmospher Studies, Saskatoon, SK, Canada |
推荐引用方式 GB/T 7714 | Zambri, Brian,Solomon, Susan,Kinnison, Douglas E.,et al. Modeled and Observed Volcanic Aerosol Control on Stratospheric NOy and Cl-y[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2019. |
APA | Zambri, Brian.,Solomon, Susan.,Kinnison, Douglas E..,Mills, Michael J..,Schmidt, Anja.,...&Roth, Chris Z..(2019).Modeled and Observed Volcanic Aerosol Control on Stratospheric NOy and Cl-y.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES. |
MLA | Zambri, Brian,et al."Modeled and Observed Volcanic Aerosol Control on Stratospheric NOy and Cl-y".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES (2019). |
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