> For the complete documentation index, see [llms.txt](https://swatplus.gitbook.io/io-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://swatplus.gitbook.io/io-docs/introduction-1/reservoirs/reservoir.res/hyd.md).

# hyd

The pointer to the reservoir hydrology file is a foreign key referencing [name](/io-docs/introduction-1/reservoirs/hydrology.res/name.md) in [**hydrology.res**](/io-docs/introduction-1/reservoirs/hydrology.res.md).