The insulated lid of a Stevenson screen helps to minimize temperature fluctuations caused by direct sunlight and external heat sources. This design ensures that the instruments inside, such as thermometers and hygrometers, receive accurate readings by protecting them from radiant heat. Additionally, the insulation aids in maintaining a stable internal environment, allowing for better long-term data collection in meteorological observations.
he invented the instrument
thermometer
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A metal stand on a Stevenson screen serves to elevate the screen above the ground, ensuring that it is placed at an appropriate height for accurate temperature and humidity measurements. This elevation helps to minimize the influence of heat from the ground and surrounding surfaces, thereby providing more reliable data. Additionally, the metal stand enhances the stability and durability of the Stevenson screen, protecting it from environmental factors.
Yes, a Stevenson screen can be placed on a hard surface, but it is important to ensure that the screen is elevated and well-ventilated to avoid heat from the ground affecting the temperature readings. Ideally, it should be situated on a grassy or natural surface to minimize heat absorption and provide more accurate measurements. Proper placement is crucial for maintaining the integrity of the data collected.
Insulted.
he invented the instrument
In the 1860s. I think. By Thomas Stevenson.
In the 1860s. I think. By Thomas Stevenson.
to prevent heat radiation and damage by people or animals
In observataries,the thermometers are kept in a wooden box with good ventilation and air movement.This box is called stevenson's screen
thermometer
to support
To allow the air to circulate
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The sides of a Stevenson screen are louvered to allow air to circulate freely around the temperature and humidity sensors inside. This design helps prevent the sun's direct rays from hitting the sensors and affecting the accuracy of the readings. The louvered sides also help to reduce the impact of thermal radiation on the inside of the screen.
the stvenson screen has a air vent on the top of it so that air can get out