> 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/channels/hyd-sed-lte.cha/slp.md).

# slp

The channel slope is defined as the average slope of the channel along its length. It is calculated by QSWAT+ based on the DEM.