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It is kept 1.25m/4.1ft (UK standard) above the ground by legs to avoid strong temperature gradients at ground level, has louvred sides to encourage the free passage of air, and is painted white to reflect heat radiation, since what is measured is the temperature of the air in the shade, not of the sunshine.
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Weather observations
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Why was the Stevenson screen named after Thomas Stevenson?
he invented the instrument
What instruments are stored in the stevenson screen?
thermometer
Why does a Stevenson screen have double boarded sheet?
Bold Italic undrline
What is the function of air gaps in sides in Stevenson screen?
allows air to reach the thermometer so that it s temprature can be measured
Why stevenson screen has slatted sides?
to protect the instruments inside from the wind!
why is the stevenson screen placed off the ground?
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Why is a stevenson screen off the ground?
because it is
Why do you not put the stevenson screen on the ground?
A Stevenson screen is typically placed on a stand or pole above ground level to ensure proper air circulation around the temperature and humidity sensors inside. Placing it on the ground could lead to inaccurate readings due to heat radiating from the ground affecting the temperature measurements. Additionally, elevating the Stevenson screen helps prevent interference from obstacles or surfaces that could potentially skew the readings.
Where are the instruments placed which helps to measure air temperature?
it is placed in the Stevenson Screen to shelter it from direct sunlight
Where should a stevenson screen be placed?
A Stevenson screen should be placed at least 1.25 meters above the ground in a sheltered area, away from direct sunlight, artificial heat sources, and reflective surfaces. It should be located in an open area to allow adequate ventilation for accurate temperature and humidity readings.
Why was the stevenson screen raise 121cm above the ground?
The Stevenson screen is raised 1.25 meters above the ground to ensure accurate temperature measurements. Placing the screen at this height helps minimize the effects of ground radiation, which can distort temperature readings. By elevating the screen, it allows for proper ventilation and prevents the collection of heat from the ground, providing more reliable temperature data for meteorological purposes.
Where is the Stevenson screen found?
A Stevenson screen is typically found at weather stations to house temperature and humidity sensors. It is a white louvered box mounted on a stand about four feet off the ground to shield the sensors from direct sunlight and other weather elements, providing accurate readings.
When was the Stevenson Screen invented?
In the 1860s. I think. By Thomas Stevenson.
When was stevenson screen invented?
In the 1860s. I think. By Thomas Stevenson.
Why was the Stevenson screen named after Thomas Stevenson?
he invented the instrument
How do you take the temperature of air?
Assuming that you mean temperature (and not temputure - whatever that may be), it is measured using a thermometer which is placed at a height of 1.25 to 2 metres above ground level in a well-ventilated, white box called a Stevenson screen. A Stevenson screen will usually also contain other meteorological instruments to measure humidity, dew point and air pressure.Details for the setup are defined by the World Meteorological Organization (WMO).Incidentally, the box is named after a British Civil Engineer, Thomas Stevenson, who was father of the author, Robert Louis Stevenson.
Why is a thermometer placed in a stevensons screen?
A thermometer is placed in a Stevenson screen to shield it from direct sunlight, precipitation, and other sources of heat or cold that could affect its accuracy. This allows the thermometer to provide a more precise measurement of air temperature.
