Urban Flood Risk Mitigation -- data needs - depth of rainfall

Hello everyone
I am using the invest model for the first time, so I want to ask some questions about data.
“depth of rainfall (mm)”-- Is this the largest daily precipitation in a year? Or the total precipitation during the typhoon? Or can you determine the data according to your research purpose?

Hi @haojie,
As the user’s guide appendix states, it is the “Depth of rainfall event of interest (mm). To calculate the design storm, users can look up intensity-frequency-duration (IFD) tables available for their city” Here is an article that explains the concept of a design storm. So yes, you can choose the depth of rainfall according to your goals. It could be the average precipitation, or the largest in a year, or the largest ever, etc.

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Thank you very much for your answers

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