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This project ":moneybag: bag of floods" is a spinoff of its French counterpart ":flag_fr: Sac de Crue".
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It started in jan. 2023 and will gradually catch up with the french projet.
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[[TOC]]
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### First step : draw marbles from a bag to help understand flood probabilities... and use an app to mimick series of draws
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So far, we are working the first step of the project : help to convey messages about **flood probability on a given year** and **on N years**, because you don't buy a house or design a flood mitigation project for one year.
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This can be achieved by drawing from a bag marbles colour-coded with respect to their probability, that can be understood as this year's flood return period. After this, we can move on to series of N years, and for this an app is very useful to automatically generate series of "floods".
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- interpretation of probabilistic floodmaps with several flood extent maps overlayed one atop the other (more tricky than it seems if the legend is deceivlingly simple ! ) ;
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- understanding Gumbel distributions (for students and professionnals) and the confidence intervals.
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### Illustration : "bag of flood.html"
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The first and simplest app consists in :
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- a few buttons to draw one or a series of N marbles ;
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- coloured tokens of past draws ;
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- one line to sum up the stats of past draws.
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It is currently being re-worked for a better layout and additionnal features.
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