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Remote reading gauges, such as used by weather stations, work similarly to rain gauges. They have a large catch area (such as a drum sawn in half, top to bottom) which collects snow until a given weight is collected. When this critical weight is reached, it tips and empties the snow catch. This
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If the wind is very strong and a blizzard occurs, then extra snow may be blown into the gauge, and the amount of snow fallen will be over-reported. In this case the observer must judge how much of the water is from snow blown into the container and how much is fallen snow.
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container; and the funnel-shaped gauge itself. The actual gauge is mounted on a pipe outdoors and is approximately 1.5 m (150 cm; 59 in; 4 ft 11 in) in height, while the container is 51.5 cm (20.3 in; 1 ft 8.3 in) in length.
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dumping trips a switch, sending a signal. The collection then repeats. If the catch container has a heater in it, it measures the snow weight accurately. It is also possible to tip based on volume instead of weight, with appropriate fill sensing.
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when conditions are windy. If the wind is strong enough, then the snow may be blown across the wind gauge, and the amount of snow fallen will be under-reported. However, due to the shape and size of the funnel, this is a minor problem.
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is collected, the container is removed and replaced with a spare one. The snow is then melted while it is still in the container, and then poured into a glass measuring graduate. While the depth of snow is normally measured in
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An estimate of the snow depth can be obtained by multiplying the water equivalent by a factor of 10. This multiplier can vary over a wide range, however, with many citing a range from 5 to 30, while the
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has quoted a range as wide as from 3 to 100. Any proposed factor depends on the water content of the snow (how "dry" it is), so this at best provides only a rough estimate of snow depth.
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fall before the observer has time to change the gauge. In all of these cases the observer must judge how much of the water is snow and how much is rain.
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looks like a round bag lying on the ground. Inside the pillow is a liquid such as an environmentally safe
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The first use of snow gauges were precipitation gauges that was widely used in 1247 during the
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records the use of gathering rain and snowfall measurements in the Song mathematical treatise
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to gather meteorological data. The Song
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The snow gauge suffers from the same problem as that of the
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240:Another problem occurs when both snow and
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109:Learn how and when to remove this message
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179:The snow gauge consists of two parts: a
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168:Mathematical Treatise in Nine Sections
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191:Measurement procedure
159:Southern Song dynasty
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423:Dark adaptor goggles
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629:Chinese inventions
468:Lightning detector
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558:Thermo-hygrograph
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125:A snow gauge
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58:"Snow gauge"
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41:Please help
36:verification
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563:Thermometer
553:Tethersonde
533:Solarimeter
523:Snow pillow
488:Pyranometer
433:Disdrometer
268:snow pillow
262:Snow pillow
210:millimetres
202:centimetres
175:Description
163:Qin Jiushao
623:Categories
568:Tide gauge
513:Snow gauge
508:Rain gauge
503:Radiosonde
478:Nephoscope
453:Hygrometer
443:Field mill
418:Ceilometer
388:Anemometer
282:References
272:antifreeze
230:rain gauge
147:rain gauge
131:snow gauge
69:newspapers
518:Snowboard
438:Dropsonde
403:Barometer
398:Barograph
393:Atmometer
276:manometer
253:Automated
184:catchment
608:Windsock
208:) is in
428:Dewcell
153:History
83:scholar
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224:Issues
181:copper
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528:SODAR
463:Lidar
195:When
90:JSTOR
76:books
639:Snow
325:ISBN
300:ISBN
242:rain
197:snow
137:and
62:news
45:by
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