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Meteodyn EC1

Meteodyn EC1 is a web application for automatic wind load sizing according to Eurocode 1.
It allows you to quickly and easily calculate the peak dynamic pressure exerted on your building in Metropolitan France, in just a few clicks.

Wind load calculation software for structures according to Eurocode 1

An important step in the calculation of wind forces during a storm is the determination of the wind speed at the construction site. This velocity results in pressure exerted on its surfaces. 

Wind design of structures is governed by the Eurocode 1 standard:
“Actions on Structures” especially Section 4, “Wind Actions”. It is supplemented by its National Annex, which specifies certain parameters specific to France.

The Meteodyn EC1 web application automatically calculates the wind design of structures in Metropolitan France (excluding Corsica and Overseas Departments and Territories) according to Eurocode 1. It takes into account all the parameters affecting the reference wind speed that sizes structures and locally calculates the peak dynamic pressure and equivalent velocity based on the location, height above ground, roughness and orography, all in one click.

Accurate results, without oversizing, in one click.


Accurate wind data computation

The application automatically determines the parameters necessary for the wind calculation: basic speed, directional coefficient, roughness, orographic coefficient, turbulence intensity…


1. Define the study location

To define the location of your study on Meteodyn EC1, you can enter an address, geographic coordinates or click on the map.


2. Select the height of interest

Since the wind speed depends on the height above ground, you must then define the height of interest between 10 m and 100 m above ground.

3. Visualize the results

With one click, the results are expressed in peak dynamic pressure at the selected height. They are displayed graphically (dynamic pressure’s vertical profile) and the most critical sector is indicated on the map background.

Learn more about the methodology, calculations
and data considered in Meteodyn EC1


Quick and easy-to-use application

Highly ergonomic, the application only requires the location and the height of interest to perform calculations with a single click.

These results can be viewed directly within the application. The intermediate results are accessible in a collapsible panel. Finally, directional results (roughness and directional coefficient) are displayed when hovering the mouse pointer over the relevant sector.

High computation accuracy

Meteodyn EC1 considers the National Annex of Eurocode 1.

As for orography, the application incorporates Procedure 1 of Section 4.3.3(1) of the National Annex, improving result accuracy and preventing overestimation.

Orography and roughness from satellite imagery

The orography is derived from NASA’s publicly available SRTM data, with a resolution of 3 arc seconds, captured by space shuttle.

The roughness comes from the CORINE Land Cover map, produced by visual interpretation of satellite imagery and provided by the European Copernicus program.

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