气候变化领域集成服务门户(CCPortal): Sensitivity of Middle Atmospheric Ozone to Solar Proton Events: A Comparison Between a Climate Model and Satellites

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DOI	10.1029/2021JD034549
	Sensitivity of Middle Atmospheric Ozone to Solar Proton Events: A Comparison Between a Climate Model and Satellites
	Nilsen K.; Kero A.; Verronen P.T.; Szeląg M.E.; Kalakoski N.; Jia J.
发表日期	2021
ISSN	2169-897X
卷号	126 期号:18
英文摘要	Energetic particle precipitation (EPP) impact on the middle atmospheric ozone chemistry potentially plays an important role in the connection between space weather and Earth's climate system. A variant of the Whole Atmosphere Community Climate Model (WACCM-D) implements a detailed set of ionospheric D-region chemistry instead of a simple parameterization used in the earlier WACCM versions. This allows WACCM-D to capture the impact of EPP in more detail. Here, we validate the ion chemistry of the WACCM-D by analyzing the middle atmospheric ozone response to the EPP forcing during well-known solar proton events (SPEs). We use a multi-satellite approach to derive the middle atmospheric sensitivity for the SPE forcing as a statistical relation between the solar proton flux and the consequent ozone change. An identical sensitivity analysis is carried out for the WACCM-D model results, enabling one-to-one comparison with the results derived from the satellite observations. Our results show a good agreement in the sensitivity between satellites and the WACCM-D for nighttime conditions. For daytime conditions, we find a good agreement for the satellite data sets that include the largest SPEs (maximum proton flux (Formula presented.) pfu). However, for those satellite data-sets with only minor and moderate SPEs, WACCM-D tends to underestimate the sensitivity in daytime conditions. In summary, the WACCM-D with its full ion chemistry and transportation demonstrates a realistic representation of the SPE sensitivity of ozone, and thus provides a conservative platform for long-term EPP impact studies. © 2021. The Authors.
英文关键词	atmospheric modeling; ozone; satellite-based observations; solar proton events
来源期刊	Journal of Geophysical Research: Atmospheres
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/237049
作者单位	Sodankylä Geophysical Observatory, University of Oulu, Oulu, Finland; Space and Earth Observation Centre, Finnish Meteorological Institute, Helsinki, Finland
推荐引用方式 GB/T 7714	Nilsen K.,Kero A.,Verronen P.T.,et al. Sensitivity of Middle Atmospheric Ozone to Solar Proton Events: A Comparison Between a Climate Model and Satellites[J],2021,126(18).
APA	Nilsen K.,Kero A.,Verronen P.T.,Szeląg M.E.,Kalakoski N.,&Jia J..(2021).Sensitivity of Middle Atmospheric Ozone to Solar Proton Events: A Comparison Between a Climate Model and Satellites.Journal of Geophysical Research: Atmospheres,126(18).
MLA	Nilsen K.,et al."Sensitivity of Middle Atmospheric Ozone to Solar Proton Events: A Comparison Between a Climate Model and Satellites".Journal of Geophysical Research: Atmospheres 126.18(2021).