Exospheric Hydrogen Model

A Monte Carlo simulation of the terrestrial hydrogen exosphere is used to derive a global model of the exospheric hydrogen density. A third-order spherical harmonic expansion in longitude and colatitude is used to represent H at a particular radius. The h_exos.dat file provides the harmonic expansion coefficients for 40 radii (between 6640 km and 62126 km) for solstice and equinox conditions, and for four levels of solar activity (F10.7 = 80, 130, 180, 230). Details of the Monte Carlo simulation are explained in Hodges (1994). The simulation results show significant differences with previous exosphere models, as well as with the H distributions of the MSIS-86 thermosphere model.

Contributor(s)
Initial contribute: 2019-07-02

Authorship

  • R. Richard Hodges Jr.
    • :  
    Center for Space Sciences University of Texas at Dallas
    :  
    hodges@utdallas.edu
    :  
    View
    Is authorship not correct? Feed back

    Classification(s)

    ● Application-focused categoriesNatural-perspectiveSpace-earth regions

    Detailed Description

    English {{currentDetailLanguage}} English
    Quoted from: https://ccmc.gsfc.nasa.gov/modelweb/atmos/h_exos.html
     
    Parameter: Exospheric hydrogen density
    Availability: Related software can be retrieved directly from CCMC's anonymous FTP site.
     
    Brief Description:

    A Monte Carlo simulation of the terrestrial hydrogen exosphere is used to derive a global model of the exospheric hydrogen density. A third-order spherical harmonic expansion in longitude and colatitude is used to represent H at a particular radius. The h_exos.dat file provides the harmonic expansion coefficients for 40 radii (between 6640 km and 62126 km) for solstice and equinox conditions, and for four levels of solar activity (F10.7 = 80, 130, 180, 230). Details of the Monte Carlo simulation are explained in Hodges (1994). The simulation results show significant differences with previous exosphere models, as well as with the H distributions of the MSIS-86 thermosphere model.

    References:
    Hodges, R.R., Monte Carlo simulation of the terrestrial hydrogen exosphere, J. Geophys. Res., 99, 23229-23247, 1994.
    View Full Text

    模型元数据

    {{htmlJSON.HowtoCite}}

    R. Richard Hodges Jr. (2019). Exospheric Hydrogen Model , Model Item, OpenGMS, https://geomodeling.njnu.edu.cn/modelItem/0fc52edb-6b83-4e3f-8d60-58650a781034
    {{htmlJSON.Copy}}

    Contributor(s)
    Initial contribute : 2019-07-02

    {{htmlJSON.CoContributor}}

    Authorship

  • R. Richard Hodges Jr.
    • :  
    Center for Space Sciences University of Texas at Dallas
    :  
    hodges@utdallas.edu
    :  
    View
    Is authorship not correct? Feed back

    QR Code

    ×
  • {{curRelation.name}}
    {{curRelation.name}}
    {{curRelation.overview}}
    {{curRelation.author.join('; ')}}
    {{curRelation.journal}}





    {{htmlJSON.RelatedItems}}

    {{htmlJSON.LinkResourceFromRepositoryOrCreate}}{{htmlJSON.create}}.

    Drop the file here, orclick to upload.
    Select From My Space
    + add
    {{htmlJSON.Cancel}} {{htmlJSON.OK}}

    {{htmlJSON.authorshipSubmitted}}

    Use My Info Cancel Submit
    Cancel Submit     {{htmlJSON.Cancel}} {{htmlJSON.Submit}}
    {{htmlJSON.Localizations}} + {{htmlJSON.Add}}
    {{ item.label }} {{ item.value }}
    {{htmlJSON.ModelName}}:
    {{htmlJSON.Cancel}} {{htmlJSON.Submit}}     * 名称 别名 {{tag}} +
    系列名 * 版本号 * 目的 * 修改内容 * 创建/修改日期 * 作者
    * 摘要 详细描述
    {{tag}} + 添加关键字
    * 时间参考系
    * 空间参考系类型 * 空间参考系名称

    * 起始日期 终止日期 * 进展 * 开发者
    * 是否开源 * 访问方式 * 使用方式 * 开源协议 * 传输方式 * 获取地址 * 发布日期 * 发布者



    * 编号 * 目的 * 修改内容 * 创建/修改日期 * 作者




    * 时间分辨率 * 时间尺度 * 时间步长 * 时间范围 * 空间维度 * 格网类型 * 空间分辨率 * 空间尺度 * 空间范围
    {{tag}} +     * 类型
    图例

    * 名称 * 描述
    示例描述 * 名称 * 类型 * 值/链接 或 上传


    {{htmlJSON.Cancel}} {{htmlJSON.Submit}}
    Title Author Date Journal Volume(Issue) Pages Links Doi Operation
    {{htmlJSON.Cancel}} {{htmlJSON.Submit}}
    {{htmlJSON.EnterDoiClickSearch}}
    {{htmlJSON.Add}} {{htmlJSON.Cancel}}

    {{articleUploading.title}}

    Authors:  {{articleUploading.authors[0]}}, {{articleUploading.authors[1]}}, {{articleUploading.authors[2]}}, et al.

    Journal:   {{articleUploading.journal}}

    Date:   {{articleUploading.date}}

    Page range:   {{articleUploading.pageRange}}

    Link:   {{articleUploading.link}}

    DOI:   {{articleUploading.doi}}

    Yes, this is it Cancel

    The article {{articleUploading.title}} has been uploaded yet.

    OK     {{htmlJSON.Cancel}} {{htmlJSON.Confirm}}
    4Nfp_IuK2jGf