New User Questions
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Mayu Mizutani
Sep 10, 2025, 10:03:51 AMSep 10
to SWAT-user
Hello,
I am using SWAT to model watersheds draining to a sampling point. I have a shapefile containing these points, and I have a line shapefile that shows a stretch of stream that drains to these points. I plan to use these line shapefiles to burn into the DEM. I have been running this to create streams.
It has been stuck on D8FlowDir for a bit now.
What is the size recommendations for the DEM? Should the stream networks be connected in order to burn them into the DEM?
Chris George
Sep 10, 2025, 10:19:17 AMSep 10
to Mayu Mizutani, SWAT-user
FlowDir run times can be long - see the section on large DEMs in the
QSWAT manual.
Flowlines used for burning in do not need to be connected.
Chris
On 9/10/2025 3:20 AM, Mayu Mizutani wrote:
> Hello, I am using SWAT to model watersheds draining to a sampling
> point. I have a shapefile containing these points, and I have a line
> shapefile that shows a stretch of stream that drains to these points. I
> plan to use these line shapefiles
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QSWAT manual.
Flowlines used for burning in do not need to be connected.
Chris
On 9/10/2025 3:20 AM, Mayu Mizutani wrote:
> Hello, I am using SWAT to model watersheds draining to a sampling
> point. I have a shapefile containing these points, and I have a line
> shapefile that shows a stretch of stream that drains to these points. I
> plan to use these line shapefiles
> This Message Is From an External Sender
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Mayu Mizutani
Sep 17, 2025, 7:20:52 AMSep 17
to SWAT-user
How are the following fields defined for the outlets/inlets shapefile? The manual did not define them.
Chris George
Sep 17, 2025, 7:40:17 AMSep 17
to Mayu Mizutani, SWAT-user
You use QGIS to create the fields.
Chris
On 9/15/2025 2:42 PM, Mayu Mizutani wrote:
> How are the following fields defined for the outlets/inlets shapefile?
> The manual did not define them. On Wednesday, September 10, 2025 at 10:
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Chris
On 9/15/2025 2:42 PM, Mayu Mizutani wrote:
> How are the following fields defined for the outlets/inlets shapefile?
> 19: 17 AM UTC-4 Chris George wrote: FlowDir run times can be long - see
> the section on large DEMs in
> the section on large DEMs in
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> How are the following fields defined for the outlets/inlets shapefile?
> The manual did not define them.
> The manual did not define them.
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