3/5/2023 0 Comments Funny weather indicatorAir (wind) flows in the direction of the low pressure area from all directions. When air masses rise, there will be a negative pressure for a short time at the place where they used to be. The wandering low and high pressure areas emerge through earth rotation. Therefore, there are three large systems of rising air masses up to the poles and further north or south, there are falling air masses. In these areas, it rarely rains as the falling air masses get warmer when pressure rises and this prevent any cloud formation or dissolve all the clouds. The air pressing downwards, which rose up at the equator and were pushed away sideways, cannot compete with this air. However, the air risen at the equator must go down somewhere and that happens at places which are a bit farther away from the equator, where the air is not heated up that much. The solar heating is gradually weakened from the equator to both poles. This happens all the time as the sun always heats up the earth / the air at the equator more strongly than the air on both poles. What is the relation between the barometric pressure shown on the weather station / air quality station and the weather?ĭifferent air pressure conditions (weather station will show related icons or numbers) are due to air masses that rise at different levels at different places on earth. The disadvantage is that the weather data can only be recorded in certain time intervals and can only be read out manually. The user can also make further observations such as the course of the weather, which would not be possible with an automated weather station. Analogue weather stations do not need power supply and are easier to read out. Modern weather stations also measure global radiation, sunshine duration and some special values such as evaporation and soil temperature. Also, a rain gauge and an anemometer are placed outside the weather shelter. In most cases, weather stations consist of a psychrometer, a maximum and minimum thermometer and a thermo-hygrograph. It is also important that the sun can shine on it all day and that the wind can freely strike it. To make the data of the individual weather stations comparable, it is defined that they have to be set up exactly two metres above a lawn and ten metres away from the next tree. This means that under these circumstances, a weather shelter would always record excessively high temperatures. When there is sunshine and some clouds, a dark surface would absorb more radiation, emit it to the air inside and thus increase the inside temperature as compared to the outside temperature. This prevents the temperature data from being falsified by sun radiation. The weather shelters are made of wind-permeable slatted walls and are painted in white on the outside. These boxes do not only protect the measuring instruments from rain and dirt but also ensure correct measurement values. These are small boxes, wither made of wood or of weather-proof plastic. An analogue weather station is common in „weather shelters“. A distinction is made between analogue and digital weather stations. Weather stations are frequently used for public weather measurements and forecasts but also for private purposes. The weather station consists of various meters all of which measure meteorological parameters and thus can be used to observe the weather. Useful facts about the weather station / air quality station In cooperation with our engineers / technical staff, you will be able to find a satisfactory solution. If you have a specific measuring application or problem, please contact us over the phone. For professional use, we can make some adaptations where necessary (retrofitting of the sensors, extension of the cables, sinter filters, …). The sensors of the weather station are long-time stable, which means that regular calibration for private users is normally not necessary. The name and address of your company or the company on whose behalf you order are also written on the certificate. This certification according to ISO includes a laboratory calibration including a test certificate with all measurement values. This is for companies that want to include a weather station in their official pool of test equipment according to ISO and for annual re-calibration.
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