L11_flow_direction error #19
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Hey guys! I am encountering this error Maybe it's because my dem has some flat areas, so my flow direction has too... EDIT: when I try to run with l0 = l1 = 500m, the mhm gets stuck on the screen below which apparently is part of the L11_flow_direction subroutine. |
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Replies: 3 comments 6 replies
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Hi Bryan First case: The Second case: My guess is your L1/ L11 of 500 m is too fine a resolution to run. This is making mhm take time for generating the stream network configurations. I would suggest you to stick to 10,000 m that you were using until you are confident about your setup. Once that is done, then try coming down to few kms resolution. BTW, the Hope you get through this issue. Pallav |
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Perfect, thank you very much. I will be back in a few hours with an answer! |
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My dem is definitely filled, I tried using these nomenclatures in flow direction:
and But nothing works. my l0 = 500m Can you give me some explanation of how the model will generate the flow direction for l11? does it just use dem.asc? I will redo all the data involving the dem, using another source of information edit.: I remade all my .asc files with another DEM source and and the program worked. But I have to restart the computer after updating the files |
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Dear Brian,
The upscale of the routing is explained at
Thober, S., Cuntz, M., Kelbling, M., Kumar, R., Mai, J. & Samaniego, L. The multiscale routing model mRM v1.0: simple river routing at resolutions from 1 to 50 km. Geoscientific Model Development 12, 2501–2521 (2019).
In short: the coarse scale direction follows the largest accumulation ate the boundaries of the coarse cell accounted with the L0 flow direction. at L11 only N, E, W S directions are allowed.
Please analyze the test basins. Prepare a simple example until you understand the logic of the model.
Luis
… On 15. June 2021, at 19:39, Bryan Souza ***@***.***> wrote:
@pallavhydro
My dem is definitely filled, I tried using these nomenclatures in flow direction: 1-2-4-8-16-32-64-128 and 1-2-3-4-5-6-7-8. according to this:
But nothing works.
my l0 = 500m
l1/l22/l2 = 10000m.
Can you give me some explanation of how the model will generate the flow direction for l11? does it just use dem.asc?
I will redo all the data involving the dem, using another source of information
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Hey @lese66 Thanks for the answer. I managed to run the model with my own basin, luckily! now i'm finding some holes in the output. But I'll go over my inputs/parameters/calibration and see what I can do about it
Bryan |
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Hey @lese66 ! Can you take a look in #21 ? I think you can give me some tips ! Ty |
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Hi @BryanSouzaM, |
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Hello |
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Please check our response to "What`s the classification standard of the hydrogeological data #22" |
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Hi Bryan
First case:
The
L11_flow_direction: side = -1means one (or more) of your model routing cell (L11) is not being able to find a direction to flow. Basically, one (or more) of the L0 cells (dem.asc) is a sink. Please fill the dem you are using and update the facc.asc, fdir.asc and idgauges.asc from the filled dem.Second case:
My guess is your L1/ L11 of 500 m is too fine a resolution to run. This is making mhm take time for generating the stream network configurations. I would suggest you to stick to 10,000 m that you were using until you are confident about your setup. Once that is done, then try coming down to few kms resolution. BTW, the
min mhm stands formesoscale. It's not …