A parallel Python-based tool for meshing watershed rivers at continental scale

Ye, Fei; Cui, Linlin; Zhang, Yinglong; Wang, Zhengui; Moghimi, Saeed; Myers, Edward; Seroka, Greg; Zundel, Alan; Mani, Soroosh; Kelley, John G.W.

doi:10.1016/j.envsoft.2023.105731

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The NOAA IR serves as an archival repository of NOAA-published products including scientific findings, journal articles, guidelines, recommendations, or other information authored or co-authored by NOAA or funded partners. As a repository, the NOAA IR retains documents in their original published format to ensure public access to scientific information.

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A parallel Python-based tool for meshing watershed rivers at continental scale

2023
By Ye, Fei ; Cui, Linlin ; Zhang, Yinglong ; ...
Source: Environmental Modelling & Software, 166, 105731

[PDF-5.00 MB]

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Journal Title:

Environmental Modelling & Software
Personal Author:

Ye, Fei ; Cui, Linlin ; Zhang, Yinglong ; Wang, Zhengui ; Moghimi, Saeed ; ... More +

Ye, Fei ; Cui, Linlin ; Zhang, Yinglong ; Wang, Zhengui ; Moghimi, Saeed ; Myers, Edward ; Seroka, Greg ; Zundel, Alan ; Mani, Soroosh ; Kelley, John G.W. Less -
NOAA Program & Office:

NOS (National Ocean Service)
Description:

A major challenge in compound flooding simulation is representing small rivers in the model mesh. A parallel Python-based tool is developed to support the construction of unstructured grids (UGs) at continental scales. The tool is driven by Digital Elevation Model (DEM), ensuring accurate representation of geomorphic features in the resulting mesh. Its first component (pyDEM) extends an existing tool to detect river thalwegs from DEMs. The second component (RiverMapper) uses the thalwegs to generate river ‘arcs’, which can be directly ingested into meshing tools (e.g., the Surface-water Modeling System). The novelty lies in the explicit 2D representation of rivers in both along- and cross-channel directions, making it ideal for accurate, efficient, and high-resolution continental-scale research. The tool is employed to create a UG for a 3D creek-to-ocean model encompassing the US East and Gulf Coasts, and it greatly improves the flow exchange between the watershed and the coastal zone.
Source:

Environmental Modelling & Software, 166, 105731
DOI:

https://doi.org/10.1016/j.envsoft.2023.105731
ISSN:

1364-8152
Format:

pdf
Publisher:

Elsevier BV
Document Type:

Journal Article-Accepted Manuscript
Funding:

Grant no. NA21NOS0080197
License:

https://creativecommons.org/licenses/by-nc-nd/4.0/
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CC BY-NC-ND
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The NOAA IR provides access to this content under the authority of the government's retained license to distribute publications and data resulting from federal funding. While users may legally access this content, the copyright owners retain rights that govern the reproduction, redistribution, and re-use of this work. The user is solely responsible for complying with applicable copyright law.
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urn:sha-512:4677f54bc7d4a06ae872e6fd827b047473780c7c904c23677058f3c51bb31f2782b1d08b9f987bdc6593e389e8f1506de86abbc621921f0cc09c3b9df77c12cd
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A parallel Python-based tool for meshing watershed rivers at continental scale

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