- Dark adaptor goggles
Dark adaptor goggles are used in the field of meteorology for either adapting the eyes to the dark prior to an observation at night or to aid with the identification of clouds during bright sunshine or glare from snow. The goggles are made with red-tinted plastic lenses. Although the goggles are designed to be worn inside some people find walking, especially up and down stairs, to be difficult.
For use at night the observer should put the goggles on about ten minutes prior to going outside. Once the observer is outside and away from major sources of light the goggles may be removed and the observer's vision should be adapted to the dark.
To help with the identification of clouds during the day the goggles should be put on just before the observer goes outside. This will ensure the eyes are not affected by the glare from the sun or snow.
At no time should the goggles be used to help assess the visibility.
- Environment Canada - Atmospheric Environment Services, Manual of Surface Weather Observations (MANOBS), 7th Edition, January 1977.
Earth-based meteorological equipment and instrumentationAnemometer · Barograph · Barometer · Ceiling balloon · Ceiling projector · Ceilometer · Dark adaptor goggles · Disdrometer · Field mill · Hygrometer · Ice Accretion Indicator · LIDAR · Lightning detector · Nephelometer · Nephoscope · Pan evaporation · Pyranometer · Radiosonde · Rain gauge · Snowboard · Snow gauge · SODAR · Solarimeter · Sounding rocket · Stevenson screen · Sunshine recorders · Thermograph · Thermometer · Transmissometer · Weather balloon · Weather radar · Weather vane · Windsock · Wind profiler
Wikimedia Foundation. 2010.
Look at other dictionaries:
Goggles — or safety glasses are forms of protective eyewear that usually enclose or protect the eye area in order to prevent particulates, water or chemicals from striking the eyes. They are used in chemistry laboratories and in woodworking. They are often … Wikipedia
Topic outline of meteorology — For a more comprehensive list, see the List of meteorology topics. Meteorology is the interdisciplinary scientific study of the atmosphere that focuses on weather processes and forecasting. Meteorological phenomena are observable weather events… … Wikipedia
Outline of meteorology — See also: Index of meteorology articles Eye of Hurricane Isabel from the International Space Station, September 15, 2003. Meteorology is the interdisciplinary scientific study of the atmosphere that focuses on weather processes and forecasting.… … Wikipedia
List of fashion topics — This is a list of topics related to fashion, many of which do not yet have Wikipedia articles. NOTOC 0 9 1300 1400 in fashion 1500 1550 in fashion 1600 1650 in fashion 1700 1750 in fashion 1795 1820 in fashion 20th century fashion A A line A line … Wikipedia
LIDAR — A FASOR used at the Starfire Optical Range for LIDAR and laser guide star experiments is tuned to the sodium D2a line and used to excite sodium atoms in the upper atmosphere … Wikipedia
Anemometer — A hemispherical cup anemometer of the type invented in 1846 by John Thomas Romney Robinson Cup ty … Wikipedia
Meteorology — For other uses of the root word meteor , see Meteor (disambiguation). For the work by Aristotle, see Meteorology (Aristotle). Not to be confused with Metrology. Part of the Nature series on Weather … Wikipedia
Thermometer — A clinical mercury in glass thermometer … Wikipedia
Barometer — Schematic drawing of a simple mercury barometer with vertical mercury column and reservoir at base … Wikipedia
Weather forecasting — weather forecaster redirects here. For other uses, see Weatherman (disambiguation). Forecast of surface pressures five days into the future for the north Pacific, North America, and north Atlantic ocean. Weather forecasting is the application of… … Wikipedia