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Interpretation: MeteoNav

This service allows obtaining marine forecasts along a track defined by the user, who decides date and time for departure and arrival, the locations for those points and, optionally, some intermediate points.

Entering the required data

A track is defined by its geographic coordinates (latitude and longitude) and by the date and time for departure and arrival

1. Dates:

Dates are entered in the appropriate boxes (Fecha) in the following format:

dd/mm/yyyy hh:mm

2. Latitude and longitude coordinates:

Alternative posibilities:

a. Using the mouse:

  • Click on the "Click Route" box (Clicar Ruta).
  • Click on the map the points the track will pass through.

b. Using the keyboard:

  • Enter latitude and longitude coordinates of both departure and arrival points in the appropriate boxes in decimal degrees.

Plotting the path and the forecast

By clicking on the " Calculate" button (Calcular), the information is sent to the server for processing and generating the trajectory and the marine forecast.

Zoom in on the map to see data at progressively downscaled time and space intervals.

 

Selecting the shown information

In the PLOT panel (PLOTEAR):

  • Mark the Wind box (Viento) if you wish to display that variable.
  • Select one of the options to display the sea condition (Mar): composite waves (Compuesto), wind waves (De Viento) or swell (De Fondo).

If you wish to display all the information for a given point of the trajectory, locate the cursor on it, and a box will appear with the data obtained from the numerical wave model:

Date and time

  • Latitude and Longitude
  • Wind direction and speed
  • Direction, significant height and period of composite waves and swell
  • Direction, significant height and period of wind waves
  • Direction, significant height and period of total swell

 

Additional information

Information can be requested from anywhere in the world seas, as the wave model is a global one.

Depending on the input data, the system assumes a constant speed for the movement of the ship.

The trajectory is calculated by linking the selected points along the shortest path on the Earth's surface (great-circle or orthodromic distance). It does not distinguish between land and water.

To check the sea conditions at a glance (wind and waves), a colour code used is used for the parameters on the map.

This service is not a genuine "ship routing" one, for there is no advised route. It's the user who decides it.

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Aplicación oficial 'El Tiempo de AEMET' (Android e iOS)
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