[GRASS-user] In-river (hydraulic) sediment transport dynamics

GRASS GRASS user
1

I'll soon begin a project modeling sediment transport in a river and the
effects of bar scalping on the erosion and deposition of sands and gravels
within the channel.

Looking at the Sediment Applications on the web site r.sim.sediment looks to
be focused on terrestrial sediment transport and erosion/deposition
simulation whilw r.sim.water describes overland flow hydrologic simulation.
What I need are hydraulic models for in-river sediment erosion, transport
(based on particle size), and deposition. I did not see anything relevant in
the add-ons.

Is there a GRASS work flow for hydraulic modeling and sediment transport? If
not, can someone recommend a tool that allows spatial modeling of in-river
sediment dynamics?

TIA,

Rich

2

On Thu, 25 Jul 2019, Rich Shepard wrote:

Is there a GRASS work flow for hydraulic modeling and sediment transport?
If not, can someone recommend a tool that allows spatial modeling of
in-river sediment dynamics?

Specifically, open source that can be compiled and run on linux.

Rich

3

On Thu, 25 Jul 2019, stephen sefick wrote:

The army core of engineers hec-ras might be useful.

Windoze only. They don't know anything but Microsoft.

Thanks,

Rich

4

Hi Rich,

I think that this project can be interesting for you

https://sourceforge.net/projects/caesar-lisflood/

Ivan

On 26/07/19 02:47, Rich Shepard wrote:

On Thu, 25 Jul 2019, stephen sefick wrote:

The army core of engineers hec-ras might be useful.

Windoze only. They don't know anything but Microsoft.

Thanks,

Rich
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5

On Fri, 26 Jul 2019, Ivan Marchesini wrote:

I think that this project can be interesting for you
https://sourceforge.net/projects/caesar-lisflood/

Ivan,

This is similar to the r.sim.* modules in GRASS: it models terrestrial
erosion and sediment deposition in the receiving stream channels. I might
need to look at sediment inputs to the river, but want to avoid that if
possible.

There are several potential tools that could fit the project's needs: the
Community Sediment Transport Model (a consortium lead by Woods Hole Marine
Resarch Center), OpenFOAM/SedFOAM, HydroSed2D, and the Tian-Jian Hsu (Tom)
Research Group – Center for Applied Coastal Research Numerical
modeling/simulation of coastal processes and environmental fluid mechanics.

These might be of interest to other GRASS users, too.

Thanks for your suggestion,

Rich