SHAWDHM

Coupling model of GHHM and SHAW

Coupling modelGHHMSHAW

Contributor(s)

Initial contribute: 2020-05-25

Authorship

:  
Hunan University of Science and Technology
:  
zhangyanl02@163.com
Is authorship not correct? Feed back

Classification(s)

Application-focused categoriesNatural-perspectiveLand regions
Application-focused categoriesIntegrated-perspectiveRegional scale

Detailed Description

Chinese {{currentDetailLanguage}} Chinese

Quoted from: Yanlin Zhang,Guodong Cheng, Xin Li, et al. 2012. Coupling of a simultaneous heat and water model with a distributed hydrological model and evaluation of the combined model in a cold region watershed. Hydrological Processes. 27(25):3762-3776. DOI:10.1002/hyp.9514

SHAWDHM is described in detail, as illustrated in Figure 1. The method for catchment discretization is introduced,and a watershed is discretized into spatially distributed model grids. The topography of these grids is assumed to comprise homogeneous hillslopes on which GBHM and SHAW are coupled. The model components and the coupling strategy are subsequently detailed.

Catchment discretisation. The catchment discretisation was inherited from the grid-based GBHM. As shown in Figure 1 a), a watershed was rst divided into nine sub-basins based on the DEM by using the method proposed by Pfafstetter. Each sub-basin can also be divided into nine (Pfafstetter, 1989; Verdin and Verdin, 1999). This recursive subdivision procedure had a maximum level of three; that is, a watershed can be divided into a maximum of 729 sub-basins. In each sub-basin, a series of ow intervals can be identied according to the ow distance to its outlet. This sub-basin and ow interval structure simplied the river routing procedure. Flow intervals were further divided into several model grids. Thus, the entire watershed was tiled by spatially distributed model grids.

The topography in a model grid was assumed to be hillslopes located along channels, as shown in Figure 1 b). Provided that the total river network length in a model grid extracted from ner DEM is L, the topography in the model grid can be consolidated as a couple of geometrically symmetrical hillslopes of length l=A/2L along the river, where A is the grid area (m2). In these virtual hillslopes, the canopy, residue, snow, and soil were divided into multiple layers parallel to the slope. The vertical heat and water uxes and lateral water ows such as overland ow, interow, and baseow were simulated in the layered system.

Model components and model coupling. The same layered system as that for hillslopes was adopted for SHAW and GBHM, and they were coupled by sharing the same set of variables such as liquid soil water content, ice content, and soil hydraulic properties. In each time step, vertical heat and water uxes, lateral water ows, and river routing were simulated in a coupled way. The model components and coupling strategy are described in detail as follows.

模型元数据

{{htmlJSON.HowtoCite}}

Yanlin Zhang (2020). SHAWDHM, Model Item, OpenGMS, https://geomodeling.njnu.edu.cn/modelItem/ddf58617-4868-41bc-a99a-920c40d856d2
{{htmlJSON.Copy}}

History

Last modifier
XU Kai
Last modify time
2020-12-18
Modify times
View History

Contributor(s)

Initial contribute : 2020-05-25

{{htmlJSON.CoContributor}}

Authorship

:  
Hunan University of Science and Technology
:  
zhangyanl02@163.com
Is authorship not correct? Feed back

History

Last modifier
XU Kai
Last modify time
2020-12-18
Modify times
View History

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}}
mnez_UJWB.I.