Meteograms, Soundings and Cross-sections

Two types of localized products are available:

  • Predefined products: pre-generated weather charts for usual locations in Belgium, representing areas with high aeronautical activity.
  • Customized products: these charts are generated on demand for the position of your choice, located in the calculation area of the numerical weather model.

Meteograms

An easy way to look at a time series of meteorological data at a particular location is by plotting this data in a "meteogram." In a meteogram, time progresses from left to right across the figure. One or more meteorological parameters can be plotted, either as line graphs, bar graphs or even symbols. Using a meteogram, one can get a feel of how conditions will change and evolve at a stationary point.

Keep in mind that like all the other model forecast information provided by us, these data are "as is". They are straight from the computer models, no interpretation, corrections, or other objective or subjective changes have been made. These are not the "official" forecasts, though in most cases they should resemble those rather closely.


The following meteorological parameters are represented on forecast meteograms:

  • temperature
  • dewpoint
  • relative humidity
  • wind speed
  • wind direction
  • dynamic and convective rain rate
  • dynamic and convective snow rate
  • mean sea level pressure
  • visibility

The meteograms are updated twice daily (09:30 and 21:30 Z) and give a forecast of the above parameters for the next 24 hours.

 

Cross-sections

 

The "vertical ccross section exampleross-section" gives the vertical distribution of the physical properties of the atmospheric column such as temperature, wind speed and wind direction, liquid water content (relative humidity) and icing.


These products are updated four times per day (03Z, 09Z, 15Z, 21Z) and give a forecast of the above parameters for a single location projected for the next 48 hours.
 

 

 

 

 

 

 

Soundings

 

sounding exampleForecast Soundings give the vertical distribution of the physical properties of the atmospheric column for a single time and location.

The source data is from a Numerical "Mesoscale" model which is updated 4 times daily.

 
AIM Briefing
 

Annual report 2017  
Video: The weather - Observations and forecasts  
Meteorological services - Accurate weather information for a safe airspace   (0.52 Mb)