Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2017JD028211 |
Mesospheric Nitric Acid Enhancements During Energetic Electron Precipitation Events Simulated by WACCM-D | |
Orsolini, Yvan J.1,2; Smith-Johnsen, Christine2,3; Marsh, Daniel R.4; Stordal, Frode3; Rodger, Craig J.5; Verronen, Pekka T.6; Clilverd, Mark A.7 | |
2018-07-16 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2018 |
卷号 | 123期号:13页码:6984-6998 |
文章类型 | Article |
语种 | 英语 |
国家 | Norway; USA; New Zealand; Finland; England |
英文摘要 | While observed mesospheric polar nitric acid enhancements have been attributed to energetic particle precipitation through ion cluster chemistry in the past, this phenomenon is not reproduced in current whole-atmosphere chemistry-climate models. We investigate such nitric acid enhancements resulting from energetic electron precipitation events using a recently developed variant of the Whole Atmosphere Community Climate Model (WACCM) that includes a sophisticated ion chemistry tailored for the D-layer of the ionosphere (50-90km), namely, WACCM-D. Using the specified dynamics mode, that is, nudging dynamics in the troposphere and stratosphere to meteorological reanalyses, we perform a 1-year-long simulation (July 2009-June 2010) and contrast WACCM-D with the standard WACCM. Both WACCM and WACCM-D simulations are performed with and without forcing from medium-to-high energy electron precipitation, allowing a better representation of the energetic electrons penetrating into the mesosphere. We demonstrate the effects of the strong particle precipitation events which occurred during April and May 2010 on nitric acid and on key ion cluster species, as well as other relevant species of the nitrogen family. The 1-year-long simulation allows the event-related changes in neutral and ionic species to be placed in the context of their annual cycle. We especially highlight the role played by medium-to-high energy electrons in triggering ion cluster chemistry and ion-ion recombinations in the mesosphere and lower thermosphere during the precipitation event, leading to enhanced production of nitric acid and raising its abundance by 2 orders of magnitude from 10(-4) to a few 10(-2)ppb. |
英文关键词 | energetic electron precipitation whole-atmosphere model nitric acid ion chemistry |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000439799300018 |
WOS关键词 | ODIN OBSERVATIONS ; SOLAR ; STRATOSPHERE ; CHEMISTRY ; MODEL |
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/32585 |
专题 | 气候变化 |
作者单位 | 1.NILU Norwegian Inst Air Res, Kjeller, Norway; 2.Univ Bergen, Birkeland Ctr Space Sci, Bergen, Norway; 3.Univ Oslo, Dept Geosci, Oslo, Norway; 4.NCAR, Boulder, CO USA; 5.Univ Otago, Dept Phys, Dunedin, New Zealand; 6.Finnish Meteorol Inst, Space & Earth Observat Ctr, Helsinki, Finland; 7.British Antarctic Survey, Cambridge, England |
推荐引用方式 GB/T 7714 | Orsolini, Yvan J.,Smith-Johnsen, Christine,Marsh, Daniel R.,et al. Mesospheric Nitric Acid Enhancements During Energetic Electron Precipitation Events Simulated by WACCM-D[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2018,123(13):6984-6998. |
APA | Orsolini, Yvan J..,Smith-Johnsen, Christine.,Marsh, Daniel R..,Stordal, Frode.,Rodger, Craig J..,...&Clilverd, Mark A..(2018).Mesospheric Nitric Acid Enhancements During Energetic Electron Precipitation Events Simulated by WACCM-D.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,123(13),6984-6998. |
MLA | Orsolini, Yvan J.,et al."Mesospheric Nitric Acid Enhancements During Energetic Electron Precipitation Events Simulated by WACCM-D".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 123.13(2018):6984-6998. |
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