TIDE for SAR Training, Planning, and Advisory Use

• SAR training officers preparing exercises and tabletop scenarios
• Civil protection and defence scenario-planning cells (non-operational)
• Volunteer sea-rescue organisations for training and community preparedness
• Research and academic groups studying drift, leeway, and decision support
• Port authorities and marina operators running man-overboard training drills

• Leeway table combining the Allen & Plourde (1999) and Allen (2005) object categories with later USCG and Breivik et al. (2011) extensions: 85 object categories including person-in-water, life rafts (4 / 6 / 10 / 20-person, with and without canopy), working skiffs, and cargo.
• Monte Carlo particle ensemble. Stochastic jibing modelled as a Poisson process.
• Uses wind and surface currents from the deployment's integrated forecasts, plus Stokes drift from wave fields (Phillips 1977, deep-water, direction negated from MWD).
• Server-side computation with live Server-Sent Events progress.
• Time-coupled to the map time slider; step back through the scenario without re-running.

The leeway method (Allen 2005; Allen & Plourde 1999) is the body of published coefficients used by several operational drift-prediction systems. TIDE implements the published coefficients and the Monte Carlo ensemble for training and analytical purposes. It is not a substitute for certified operational systems.

• Live vessel positions from AIS (where the deployment integrates a feed). Useful for training scenarios that include bystander traffic.
• Weather routing with isochrone solver - for planning and training context, not as operational route guidance.
• Chart tools: distance, bearing, range rings, transect profiles.

Progressive Web App. The drift-simulation workflow continues to function when connectivity drops, using the last-fetched forecast fields. Useful for drills at remote stations or on training vessels.

Browser-based, WebGL 2.0. Runs on Android devices down to 2 GB RAM. Usable on field tablets and older smartphones typical of volunteer organisations.

Use of the SAR edition requires acceptance of the terms of use. Key points published in the AGB / Terms of Use:

• Advisory and training use only; not operational SAR decision support.
• No warranty of fitness for operational use; liability capped at annual fees.
• Customer is responsible for ensuring any use complies with national rescue-authority regulations.

Operational demonstration instance | Request an SAR-training briefing | Back to overview