Liao. et al. 2022. Journal of Advances in Modeling Earth Systems

Topological relationships-based flow direction modeling: stream burning and depression filling

Chang Liao^1*, Donghui Xu¹, Tian Zhou¹, Matt Cooper¹, Darren Engwirda², Hong-Yi Li³, and L. Ruby Leung¹

¹ Atmospheric Sciences and Global Change, Pacific Northwest National Laboratory, Richland, WA, USA

² T-3 Fluid Dynamics and Solid Mechanics Group, Los Alamos National Laboratory, Los Alamos, NM, USA

³ University of Houston, Houston, TX, USA

* corresponding author: chang.liao@pnnl.gov

Abstract

Journal reference

Liao. et al. (2022). Topological relationships-based flow direction modeling: stream burning and depression filling

Code reference

References for each minted software release for all code involved.

Darren Engwirda: Generalised primal-dual grids for unstructured co-volume schemes, J. Comp. Phys., 375, pp. 155-176, https://doi.org/10.1016/j.jcp.2018.07.025, 2018.

Liao. C. (2022). HexWatershed: a mesh independent flow direction model for hydrologic models (0.1.1). Zenodo. https://doi.org/10.5281/zenodo.6425881

Data reference

Input data

Reference for each minted data source for your input data. For example:

Data	Source	Download website	Usage
River flowline	USGS National Hydrography Dataset	USGS national map	Raw river flowline
Coastal line	USGS	USGS national map	Coastal for the MPAS mesh

Output data

Reference for each minted data source for your output data. For example:

Data	Format	Content	Usage
Mesh	GeoJSON	The mesh file	Hydrology model
Conceptual river flowline	GeoJSON	The modeled river flowline	Hydrology model

Contributing modeling software

Model	Version	Repository Link	DOI
HexWatershed	version	https://doi.org/10.5281/zenodo.6425881	10.5281/zenodo.6425881

Reproduce my experiment

You need to follow two major steps to reproduce this study:

1. Run the Mesh generation workflow
2. Run the HexWatershed

Reproduce my figures

You are recommended to generate the plot using QGIS for all GeoJSON files.