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BGT: uno schermo solare per il WH31 della Ecowitt

WH31 BGT 01 WH31 BGT 03

Se non si avesse la possibilità o non si volesse modificare il trasmettitore WH31 della Ecowitt

e non si volesse comunque rinunciare ad un buono schermo contro la radiazione solare, consigliamo l'utilizzo di un BGT solar shield la cui versione a 14 piatti, come si può vedere dalle immagini, crea la giusta ventilazione.

 Il KWOS lo ha testato per svariato tempo e confrontato con vari schermi solari sia a ventilazione aspirata attiva, sia passivi.

Le dimensioni sono generose: diametro interno: 61mm, altezza interna:170mm, diametro esterno: 140mm

Viene fornita la staffa per fissaggio a palo sia verticale che orizzontale. Ottima l'idea di distanziarlo dalla staffa con tre grandi distanziatori. 


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Observing equipments

 

Automated airport weather stations use a variety of sophisticated equipment to observe the weather.

Wind speed and direction

 
ASOS Ice Free Wind Sensor

A majority of older automated airport weather stations are equipped with a mechanical wind vane and cup system to measure wind speed and direction. This system is simple in design: the wind spins three horizontally turned cups around the base of the wind vane, providing an estimation of the wind's speed, while the vane on top turns so that the face of the vane offers the least resistance to the wind, causing it to point in the direction the wind is coming from and thus providing the wind direction.

The new generation of sensors use sound waves to measure wind speed and direction. The measurement is based on the time it takes for an ultrasonic pulse to travel from one transducer to another, which varies depending on - among other factors - the wind speed. The transit time is measured in both directions for several (usually two or three) pairs of the transducer heads. Based on those results, the sensor computes wind speed and direction. Compared to mechanical sensors, the ultrasonic sensors offer several advantages such as no moving parts, advanced self-diagnostic capabilities and reduced maintenance requirements.
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All about satellites

Meteosat

There are two generations of active Meteosat satellites, Meteosat First Generation (MFG) and Meteosat Second

Generation (MSG), providing images of the full Earth disc, and data for weather forecasts.

Today, weather satellites scan the whole Earth, meaning not a single tropical storm or severe weather system goes undetected. The early detection and warnings they provide have saved thousands of lives.

Meteosat data is of unique value to nowcasting of high impact weather in support of safety of life and property.

It has been shown to improve weather forecasts and severe weather warnings which, in turn helps limit damage to property and benefits industry e.g. transport, agriculture and energy.
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Scandriglia weather

All Sky cameras

 

 

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KWOS Coordinates

Grid locator: jn62je

Lat: 42°10' 07.3" N 
(42.168694°) 
Long: 
12°47' 09.8" E     
(12.786056°) 
CQ zone:
 15 
ITU zone:
 28

 
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