Empirical Model of SSUSI-Derived Auroral Ionization Rates

IF 2.9 3区地球科学 Q2 ASTRONOMY & ASTROPHYSICS

Earth and Space Science Pub Date : 2024-11-03 DOI:10.1029/2024EA003578

Stefan Bender, Patrick J. Espy, Larry J. Paxton

{"title":"Empirical Model of SSUSI-Derived Auroral Ionization Rates","authors":"Stefan Bender, Patrick J. Espy, Larry J. Paxton","doi":"10.1029/2024EA003578","DOIUrl":null,"url":null,"abstract":"<div>\n \n \n <section>\n \n <p>We present an empirical model for auroral (90–150 km) electron–ion pair production rates, ionization rates for short, derived from Special Sensor Ultraviolet Spectrographic Imager electron energy and flux data. Using the Fang et al. (2010, https://doi.org/10.1029/2010gl045406) parametrization for mono-energetic electrons, and the NRLMSISE-00 neutral atmosphere model (Picone et al., 2002, https://doi.org/10.1029/2002ja009430), the calculated ionization rate profiles are binned in 2-hr magnetic local time and 3.6°geomagnetic latitude to yield time series of ionization rates at 5-km altitude steps. We fit each of these time series to the geomagnetic indices Kp, PC, and Ap, the 81-day averaged solar <span></span><math>\n <semantics>\n <mrow>\n <msub>\n <mi>F</mi>\n <mn>10.7</mn>\n </msub>\n </mrow>\n <annotation> ${\\mathrm{F}}_{10.7}$</annotation>\n </semantics></math> radio flux index, and a constant term. The resulting empirical model can easily be incorporated into coupled chemistry–climate models to include particle precipitation effects.</p>\n </section>\n </div>","PeriodicalId":54286,"journal":{"name":"Earth and Space Science","volume":null,"pages":null},"PeriodicalIF":2.9000,"publicationDate":"2024-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1029/2024EA003578","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Earth and Space Science","FirstCategoryId":"89","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1029/2024EA003578","RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ASTRONOMY & ASTROPHYSICS","Score":null,"Total":0}

引用次数: 0

Abstract

We present an empirical model for auroral (90–150 km) electron–ion pair production rates, ionization rates for short, derived from Special Sensor Ultraviolet Spectrographic Imager electron energy and flux data. Using the Fang et al. (2010, https://doi.org/10.1029/2010gl045406) parametrization for mono-energetic electrons, and the NRLMSISE-00 neutral atmosphere model (Picone et al., 2002, https://doi.org/10.1029/2002ja009430), the calculated ionization rate profiles are binned in 2-hr magnetic local time and 3.6°geomagnetic latitude to yield time series of ionization rates at 5-km altitude steps. We fit each of these time series to the geomagnetic indices Kp, PC, and Ap, the 81-day averaged solar $F_{10.7}$ radio flux index, and a constant term. The resulting empirical model can easily be incorporated into coupled chemistry–climate models to include particle precipitation effects.

Abstract Image

查看原文本刊更多论文

SSUSI 得出的极光电离率的经验模型

我们提出了一个极光（90-150 公里）电子-离子对产生率（简称电离率）的经验模型，该模型由特殊传感器紫外线分光成像仪的电子能量和通量数据得出。利用 Fang 等人（2010 年，https://doi.org/10.1029/2010gl045406）的单能量电子参数化和 NRLMSISE-00 中性大气模型（Picone 等人，2002 年，https://doi.org/10.1029/2002ja009430），将计算出的电离率剖面按 2 小时磁当地时间和 3.6°地磁纬度进行分档，得出 5 公里高度的电离率时间序列。我们将这些时间序列分别与地磁指数 Kp、PC 和 Ap、81 天平均太阳 F 10.7 ${\mathrm{F}}_{10.7}$ 无线电通量指数以及一个常数项进行拟合。由此产生的经验模型可以很容易地纳入化学-气候耦合模型，以包括粒子沉降效应。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Earth and Space Science Earth and Planetary Sciences-General Earth and Planetary Sciences

CiteScore

5.50

自引率

3.20%

发文量

285

审稿时长

19 weeks

期刊介绍： Marking AGU’s second new open access journal in the last 12 months, Earth and Space Science is the only journal that reflects the expansive range of science represented by AGU’s 62,000 members, including all of the Earth, planetary, and space sciences, and related fields in environmental science, geoengineering, space engineering, and biogeochemistry.