In environmental hazard assessment, risk is defined as the probability of a hazardous event occuring multiplied by the consequences of that event. Thus high risk can be the result of frequent events of low consequence or rare events of high consequence; the highest risk scenarios are often not obvious.
The Environment Agency routinely collects data on rainfall, sea level and river discharge and has published flooding probability maps that indicate areas of England that fall within four flood probability bands, based on the recurrence interval of flood levels that cause property damage and threat to life. These bands are very low probability (flooding expected once per 1000 years), low probability (flooding expected once per 100 years), medium probability (flooding expected once per 50 years), and high probability (flooding expected once per 10 years).
This tool calculates flood probabilities and risks for postcodes in England.
To be written
to be written
The code includes Sphinx documentation. On systems with Sphinx installed, this can be build by running
python -m sphinx docs html
then viewing the index.html
file in the html
directory in your browser.
For systems with LaTeX installed, a manual pdf can be generated by running
python -m sphinx -b latex docs latex
Then following the instructions to process the FloodTool.tex
file in the latex
directory in your browser.
The tool includes several tests, which you can use to checki its operation on your system. With [pytest installed, these can be run with
python -m pytest flood_tool
``
The current version also includes a speed scoring algorithm. This can be run with.
python -m score
in the main repository directory.