Stevenson screen

The thermometer hut, hut also climate, weather shelter, rare: English hut, hut Stevenson found in standardized design especially at weather stations in meteorological and climatological measurements ( air monitoring network and synoptic monitoring network ) use.

Basics

The thermometer hut is a white painted fin box, usually made of wood, and serves to protect the therein meteorological equipment from disturbing or even damaging environmental and weather conditions such as solar radiation, precipitation ( rain and snow) and strong wind. A thermometer hut contains measurement instruments (ie, air temperature and humidity) are used to determine the parameters meteorologically relevant with respect to the air is required. These are generally:

  • The psychrometer consisting of Thermometer to measure the air temperature ( on dry thermometer bulb )
  • Thermometer for measuring the wet bulb temperature ( the humidified thermometer bulb )

Execution

  • Disc design (to ensure the required ventilation ), double slats A., wooden
  • White paint (to high reflection of solar radiation, giving low heating during intense sunlight, albedo)
  • Ventilation on the bottom side of the hut
  • Two hinged doors
  • Slightly inclined ( to the south ) roof

In addition to the ( large ) thermometer hut there are also smaller versions, eg for measurements in the field inventory ( Agricultural Meteorology )

List

  • Unshaded on the measurement field, see climate garden
  • To a considerable distance from trees, hedges and buildings or other obstacles (general rule: obstacle distance greater than two times the obstacle height )
  • So that the sensor be in measurement networks of the German Weather Service usually at 2 m height above the ground; international: 1,25 to 2 m
  • The door opening is located to the north
  • If the front of the cottage has to avoid unwanted vibration no contact with the structure ( frame ) of the thermometer hut

History

As a designer (designer ) of the first thermometer huts shall be the engineer Thomas Stevenson ( 1818-1887 ).

Synoptic scale meteorology Lamella Field (agriculture) Deutscher Wetterdienst Design engineer
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