Reading the r.flow manual page suggests that the use of the '-u'
(upstream) option allows determination of flowlines and lengths that can be
used to delineate the area that would drain to a specific point. Is this
correct?
To determine the area flooded if an outlet is plugged would require th
Rich,
The only way to -correctly- do this is with hydrodynamic modeling, such as
with HEC-RAS. It can be very crudely approximated with r.damflood (
https://grass.osgeo.org/grass70/manuals/addons/r.damflood.html).
Tom
On Mon, Oct 3, 2016 at 7:39 PM, Rich Shepard
wrote:
> Reading the r.flow m
-user@lists.osgeo.org Subject: Re: [GRASS-user] r.flow: define
contributing area
Rich,
The only way to -correctly- do this is with hydrodynamic modeling, such as with
HEC-RAS. It can be very crudely approximated with r.damflood
(https://grass.osgeo.org/grass70/manuals/addons/r.damflood.html).
Tom
On Tue, 4 Oct 2016, Johannes Radinger wrote:
Maybe have a look at
r.lake: https://grass.osgeo.org/grass70/manuals/r.lake.html. This module
fills the area upstream a dam or a blocked stream.
Johannes/Thomas,
I considered r.lake and r.damflood. What I will try to learn from the
manual pages (
On Tue, 4 Oct 2016, Johannes Radinger wrote:
Maybe have a look at r.lake ... fills the area upstream a dam or a blocked
stream.
Johannes,
This module looks like it will do the job. The example of flooding along a
small street somewhere in North Carolina is analogous to flooding of
agricultu
On Mon, 3 Oct 2016, Thomas Adams wrote:
The only way to -correctly- do this is with hydrodynamic modeling, such as
with HEC-RAS. It can be very crudely approximated with r.damflood (
https://grass.osgeo.org/grass70/manuals/addons/r.damflood.html).
Tom,
I had tried using HEC-RAS long ago and
On Tue, 4 Oct 2016, Rich Shepard wrote:
For current need, it is the opposite of what r.flood
^
Er, make that r.lake instead.
Rich
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