CCHE2D-Sed Model

Sediment transport is a process that sediment or soil particles are mobilized and carried by water flows from one place to the next. Sediment entrainment and deposition are closely related to the flow conditions and sediment properties. Sediment transport is the major forcing changing the earth landscape and causing problems in watersheds, rivers, reservoirs, lakes, and coasts.

CCHESediment transport

Alias

CCHE2D Sediment Transport Model

true

Contributor(s)

Initial contribute: 2020-01-01

Authorship

:  
National Center for Computational Hydroscience and Engineering, the University of Mississippi
:  
View
Is authorship not correct? Feed back

Classification(s)

Application-focused categoriesNatural-perspectiveLand regions

Detailed Description

English {{currentDetailLanguage}} English

Quoted from: https://www.ncche.olemiss.edu/cche2d-sed-model/ 

Sediment transport is a process that sediment or soil particles are mobilized and carried by water flows from one place to the next. Sediment entrainment and deposition are closely related to the flow conditions and sediment properties. Sediment transport is the major forcing changing the earth landscape and causing problems in watersheds, rivers, reservoirs, lakes, and coasts.

Key capabilities of CCHE2D Sediment Transport Model

  1. Unsteady flow
  2. Non-uniform sediment (multiple sizes)
  3. Non-equilibrium bed load sediment transport
  4. Suspended sediment transport
  5. Morphological change of beds
  6. Bank erosion process includes bank surface erosion, toe erosion and mass failure
 
 
 
 

The Bonnet Carré Spillway delivered a plume of thick sediment to Louisiana’s Lake Pontchartrain in mid-May 2011.

http://noladder.blogspot.com/2011/05/flood-battle-incredible-barriers.html
 
 
 
 
 
 

Sediment Pollution in the Lake Pontchartrain, LA

Flood release from the Mississippi River to the Lake Pontchartrain, LA, is operated once in few years to reduce flood threat to the New Orleans City. A large amount of sediments in the Mississippi River is brought into the Lake with the flood water downgrading the water quality. It takes many days for the sediment to deposit and to be transported out of the Lake. CCHE2D-SED has been applied to simulate the sediment transport process.

Comparisons of the CCHE2D simulated sediment transport process in the Lake Pontchartrain, LA, after the 1997 flood release from the Mississippi River are shown. The simulated distributions of suspended sediment are very close to those observed with satellite imagery.

 
 
 
 
 

Bank Erosion of ChuoShui Creek, Taiwan

Chuoshui Creek is a mountain river in Taiwan. Characterized by a steep slope, an abundant supply of sediment and a high rate of precipitation in Typhoon seasons. The studied river reach has a braided channel pattern with rapidly changing sub-channels. Both bed erosion and bank erosion are significant particularly during the typhoon seasons, resulting in fast channel changes and a severe farmland loss along banks. CCHE2D sediment transport and bank erosion model were applied to simulate the sediment transport and morpho-dynamic process in one reach of the river.

 

模型元数据

{{htmlJSON.HowtoCite}}

CCHE team (2020). CCHE2D-Sed Model, Model Item, OpenGMS, https://geomodeling.njnu.edu.cn/modelItem/24e88818-db34-4197-b373-6a608fa47f61
{{htmlJSON.Copy}}

History

Last modifier
zhangshuo
Last modify time
2021-01-06
Modify times

Contributor(s)

Initial contribute : 2020-01-01

{{htmlJSON.CoContributor}}

Authorship

:  
National Center for Computational Hydroscience and Engineering, the University of Mississippi
:  
View
Is authorship not correct? Feed back

History

Last modifier
zhangshuo
Last modify time
2021-01-06
Modify times

QR Code

×

{{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.authorshipSubmitted}}

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 上传


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