It is highly likely that refers to the compressed installation or data package for Tide Tool , an operational software developed by the Pacific Tsunami Warning Center for decoding and manipulating sea level data. Core Features of Tide Tool

A web application framework where "tide" releases are often distributed as source code zip files.

Continuously decodes sea level data transmitted over the WMO Global Telecommunications System (GTS).

A Windows application used for automatic file organization and folder cleanup.

The software is designed for real-time monitoring and scientific analysis of tidal signals:

Instruction of Tide Tool for Windows