Norsk
Reflectivity factor (dBZ)
Update cycle: every 1 minResolution: 150 meterThe colour scale represents the strength of returned energy to the radar expressed in values of decibels (dBZ). As dBZ values increase so does the intensity of the precipitation. Keep in mind that low dBZ values, typically below 20, indicates precipitation that may very well evaporate before reaching ground.
| Reflectivity in dBZ versus Rainrate | ||
|---|---|---|
| LZ (dBZ) | R (mm/h) | Intensity |
| 5 | 0.07 | Hardly noticeable |
| 10 | 0.15 | Light mist |
| 15 | 0.3 | Mist |
| 20 | 0.6 | Very light |
| 25 | 1.3 | Light |
| 30 | 2.7 | Light to moderate |
| 35 | 5.6 | Moderate rain |
| 40 | 11.53 | Moderate rain |
| 45 | 23.7 | Moderate to heavy |
| 50 | 48.6 | Heavy |
| 55 | 100 | Very heavy/small hail |
| 60 | 205 | Extreme/moderate hail |
| 65 | 421 | Extreme/large hail |
Location
The Furuno Weather Radar WR2120 is mounted on a 18 meter high mast at Byfjell Aksla, Aalesund. All together 208 meters above sea level.BackgroundFuruno Norge AS has a collaboration in form of a project with Aalesund municipality. Our main objective is to investigate how high resolution weather data can be used to improve existing services and also to develop new services to the benefit of the public. The first focused area will be related to surface water and sewage.In this project, Aalesund municipality has an agreement with Norwegian Meteorological Institute. They are already receiving raw weather radar data from our project installation which are further processed and included as gap filling data for the Multi-Radar presentation.Furuno Norge appreciate this important contribution to the project and for allowing us to use this content on our website.
Radar beam blockageEven though the location of the radar is at a magnificent place, it has some blockage from a concrete tower nearby and also from mountains, especially towards the south. The reduction and blockage effect is as presented in this image.Radar scanThe radar makes a volumetric scan every minute and creates an updated 3D image every minute. The live view is currently set to a 3 degree elevation. Read more about the effects of various weather radar system configurations.