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.
Long legs 1.25m above the surface of a Stevenson screen are meant to elevate the screen to ensure proper air circulation around the temperature and humidity sensors inside. This helps to prevent any interference from the heat radiating off the ground, providing more accurate measurements of temperature and humidity.
because it is
The ground, like tarmac or concrete is a solid state which absorb sunlight due to the dark colour (e.g. black). Therefore there is probability that the Stevenson Screen can absorb these heat which can then alter the readings of the instruments. Hope that helps JL
The Stevenson screen is placed one meter above the ground to ensure accurate temperature and humidity readings while minimizing the influence of ground heat and moisture. This height helps to avoid distortions caused by surface temperatures, vegetation, or heat from buildings. Additionally, it allows for consistent measurements in various weather conditions and maintains standardization in meteorological observations.
passenger carrying systems that are raised on pylons above ground.
A plateau.
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.
passenger carrying systems that are raised on pylons above ground.
An above-ground pool can be a great choice for many homeowners and their families. When installing a raised deck for an above-ground pool, there are several important things to remember. It's essential to make sure that a raised deck can be connected to the lip of an above-ground pool. In some cases, an above-ground pool may be a separate structure from a deck. This can be a serious tripping hazard for people entering a pool.
so it does not flood
Well, honey, a Stevenson screen should be placed in an open area, away from any obstructions that could mess with the temperature readings. Don't go sticking it next to a building or under a tree, that's just asking for trouble. And for heaven's sake, make sure it's not in direct sunlight, or you'll be getting some wonky data faster than you can say "hot mess."