Tide and tidal current predictions software developed by and for the NOAA Office of Response and Restoration Emergency Response Division.
Shio is a quick response tool which displays both tidal heights and currents for tide stations provided by the National Ocean Service. Stations are primarily U.S. stations with some additional stations in other countries.
The name "Shio" isn't an acronym (like TAP, GNOME, ADIOS). It was Glen Watabayahi's (Bushy) suggestion, and it means "tide" (and salt) in Japanese.
Shio was developed using wxWidgets, an open source, cross-platform C++ GUI framework.
Shio is not meant to be public software. It was developed solely as an in-house tool for the Office of Response and Restoration (OR&R) of the National Oceanic and Atmospheric Administration (NOAA). As such, there is no documentation available, nor is technical support provided.
Shio uses tide data from the National Ocean Service (NOS) Office of Coast Survey of NOAA as its source data, but there is no guarantee that Shio output matches the published NOS tide tables. For official tide predictions, please consult the tide tables published by NOS at https://tidesandcurrents.noaa.gov/
Shio does not have an active code maintenance schedule. Updates will be intermittent and driven by in-house needs, though, as a rule it is updated once a year to accommodate new data.
Installers for Windows and Mac can be found on the release page of this project.
Installers for Windows and Mac are available to ORR internal users in the GitLab project:
https://gitlab.orr.noaa.gov/erd/response-tools/Shio/-/releases