Hydrologic Data Analysis with hyswap

During my time at the USGS, the Water Mission Area was focusing on open-sourcing and modernizing software tools and methods. Consequently, I led the initial development of the HYdrologic Surface Water Analysis Package, hyswap.

The package was designed to be function-based, as opposed to object-oriented, to be approachable to the many R-users prevalent in the USGS and the hydrologic community. A number of methods to calculate and visualize common hydrologic statistics are included. Examples of the package’s functionality typically make use of the Python dataretrieval package to fetch USGS water data.

Example raster hydrograph as generated by the hyswap package

Example streamflow duration hydrograph as generated by the hyswap package

As an aside, I was also developing simple Python tooling to visualize USGS water data. The just-graphs package itself is not yet released, but the FastAPI API I developed and served via Posit Connect is available here and can be used to generate instantaneous value (iv), daily value (dv), and groundwater level graphics for USGS monitoring sites.