5. NATIONAL OBSERVING NETWORK :

The National Observing Network is consisting of different stations to meet the needs of the Organization :

1- Synoptic Stations

2- Upper-air Stations

3- Climatological Stations

4- Rain-gauge Stations

5- Agrometeorological Stations

6- Marine Meteorological Stations

7- Bouys

8- Specialized Stations

8-1 Air Pollution Monitoring

8-2 Ozone Monitoring

8-3 GAW

As you see on transparency the number of stations in the Network is amounting to 3,195 .

On next transparencies , you will find the developing trend of these stations during the recent 20 years of

service after Revolution. It is important to note that all stations have been established based on unified standards.

Here we can see the number of stations which all have been standardized

Number Of Meteorological Stations