Lightning density
Assess a site’s exposure to lightning risk using Nsg and Ng lightning density statistics.
Accurate statistics for lightning risk prevention
Our Lightning Density service provides you with reliable statistical data that complies with international standards (IEC 62305-2 and IEC 62858) for assessing lightning risk in Europe.
To correctly design and size lightning protection systems (LPS), you need to base your calculations on the most accurate statistics possible.
High-resolution lightning data
Our Lightning density service analyzes METEORAGE lightning data over a 10-year period, within a 5 km radius of a site of your choice (mailing address or coordinates in decimal degrees).
You will receive a detailed report including the following information:
- Lightning density Nsg: Value and statistical confidence index.
- Lightning density Ng: Number of ground lightning strikes per square kilometer per year.
- Number of thunderstorm days per year: Number of days on which at least one lightning flash was detected.
- Maximum annual Nsg value: Indication of the maximum observed risk.
In line with international standards, METEORAGE recommends the use of Nsg.
Terminology:
Nsg defines the lightning density calculated based on the ground strike points generated by a Cloud-to-Ground lightning. The IEC 62858 standard, transposed into NF EN 62858, recommends using this parameter to calculate the lightning risk, as it takes into account the location of all ground strike points.
Ng is the lightning density calculated based on the first return stroke (or flash or first ground strike point) in a Cloud-to-Ground lightning. This parameter underestimates the lightning risk since it considers only the first ground strike point in a Cloud-to-Ground lightning. It may be recalled that Cloud-to-Ground lightning with negative polarity (about 90% of all Cloud-to-Ground lightning) generate at least two ground strike points (called “forked” lightning).
The number of thunderstorm days is the number of days when at least one lightning event, either cloud-to-ground or intra-cloud, was located in the survey area.
How does it work?
For locations in Europe, you can order Lightning Statistics online.
For any other requirements, please contact our sales team, and we will provide you with relevant Lightning Density data upon request.
Do you have a recurring need for Lightning density data? Please contact our sales team as well.
Advantages for users
Advantages for users
01Statistical values meeting international standards.
02No need to install equipment, tools or mobile apps. Immediate delivery for online purchases via a simple interface.
03Customer satisfaction and service resubscription rates above 98%.
04Data from the best detection technologies currently available from:
– the METEORAGE network (ELDN) in western Europe, with location accuracy of <100 meters. Our network’s performance exceeds the requirements in the standards,
– the GLD360 network in the rest of the world.
Ready to start?
Indicate the desired location and download your document with the Lightning Density immediately.
How do you manage the risk of thunderstorms in your business?
We help professionals to proactively manage the risks associated with lightning and storms, for greater safety outdoors.
All our solutions tailored to your requirements
Evaluate your exposure to thunderstorms and lightning
Analyze your risk exposure and adapt your means of prevention and protection.
Be alerted to the arrival and end of a thunderstorm
Our live lightning alerts protect your teams and the public in good time and anticipate damage to your facilities. Compliant with international standards.
Monitor live thunderstorms and lightning
Optimize your preventive measures and mitigate risks as early as possible.
Check any damage and your installations after a thunderstorm
Determine whether lightning has caused damage and optimize your inspection process.
Integrate lightning information
Feed your own tools with our high-resolution flows and data, in real time or past time.
Receive training on lightning and thunderstorm risks
Develop your skills and your employees’ skills about lightning and thunderstorm risks.
Develop your own lightning service capability
Take advantage of CATS software and provide your users with services tailored to their requirements.
