Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Underestimation as a result of quartile. #2

Open
roescob opened this issue Jul 10, 2023 · 6 comments
Open

Underestimation as a result of quartile. #2

roescob opened this issue Jul 10, 2023 · 6 comments

Comments

@roescob
Copy link

roescob commented Jul 10, 2023

Is your feature request related to a problem? Please describe.
I encountered underestimation under a shallow area of the Fort Mcmurray downtown area. 
image

Following the documentation I encountered that this was caused by the third quartile (q3) being forced to a lower than actual depth.

Describe the solution you'd like
Solution: Increasing the default maximum value allowed for upper bound (cap) of RICorDE_params_default.ini from 7m to 8m solved this issue.
image

Describe alternatives you've considered
The parameters for the statistical analysis are not always obvious. Giving users a simple way to not apply them might be helpful.

Additional context
This was experienced during v1.0.1

@cefect
Copy link
Collaborator

cefect commented Jul 11, 2023

Thank you for the comment. I guess this is an issue with the phase 2 filtering of the edge sampled HAND values (through ceiling/floor quartile forcing?) Can you send the histogram of the pre-filtered HAND values? I'm not sure removing the filtering all together is a good idea... but maybe we can think of a more intelligent way of filtering.

@roescob
Copy link
Author

roescob commented Jul 12, 2023

image
Sampled HAND values within the initial extent.

@cefect
Copy link
Collaborator

cefect commented Jul 13, 2023

I think the issue is that this flood was so exceptionally deep. The floods considered during development were more on the order of 2-5m, so 7m was a reasonable upper bound. Can you also post the Hydrograph we have for fort Mac? (Time vs water depth)

@roescob
Copy link
Author

roescob commented Jul 14, 2023

I had them previously collected from https://wateroffice.ec.gc.ca/map/index_e.html.

There were 3 available stations:
water level fort mcmurray 2020.xlsx

Beware of data gaps

@cefect
Copy link
Collaborator

cefect commented Jul 15, 2023

Interesting as these show max water levels ~ 6m. I guess the gauge was knocked out after this?

@roescob
Copy link
Author

roescob commented Jul 15, 2023

For sure

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
None yet
Projects
None yet
Development

No branches or pull requests

2 participants