TR-20 (Technical Report-20)

TR-20 is a conceptual, lumped-parameter, event model that uses hourly data and is applicable for rural watersheds of up to ten square miles.

conceptuallumped-parameterevent modelrural watersheds

true

Contributor(s)
Initial contribute: 2020-01-08

Authorship

  • TR-20 team
    • :  
    USDA
    Is authorship not correct? Feed back

    Classification(s)

    ● Application-focused categoriesNatural-perspectiveLand regions

    Detailed Description

    English {{currentDetailLanguage}} English

    Quoted from: Demissie, Misganaw, Abiola A. Akanbi, and Abdul Khan. Hydrologic Modeling of Landscape Functions of Wetlands. Illinois State Water Survey, Champaign, Research Report 125, 1997. https://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.534.3382&rep=rep1&type=pdf 

          The Soil Conservation Service or SCS (1973) of the USDA in Maryland developed the Technical Report-20 (TR20) model. This conceptual, lumped-parameter, event model uses hourly data and is applicable for rural watersheds of up to ten square miles. It uses soil and land-use characteristics to generate the storm hydrograph due to precipitation input. The general structure of the TR-20 model is presented in figure 5. This model ignores interception and evapotranspiration. Infiltration is not modeled explicitly; rather, the SCS curve number method is used to compute excess rainfall. Overland flow is modeled on the basis of the SCS synthetic unit hydrograph method. Channel routing is performed by the CONVEX method, which is essentially a single-parameter Muskingum method (McCarthy, 1938). Ground-water flow is not simulated in this model.

    Figure 5. General structure of the TR-20 model (after Soil Conservation Service, 1973)  

    View Full Text

    模型元数据

    {{htmlJSON.HowtoCite}}

    TR-20 team (2020). TR-20 (Technical Report-20), Model Item, OpenGMS, https://geomodeling.njnu.edu.cn/modelItem/d5fe8e34-b263-4e6e-97de-d676683143a7
    {{htmlJSON.Copy}}

    Contributor(s)
    Initial contribute : 2020-01-08

    {{htmlJSON.CoContributor}}

    Authorship

  • TR-20 team
    • :  
    USDA
    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}}