Snow pillow

The large panel in the foreground is the snow pillow

A snow pillow is a device for measuring snowpack, especially for automated reporting stations such as SNOTEL.

The snow pillow measures the water equivalent of the snow pack based on hydrostatic pressure created by overlying snow.[1] Any discrepancy due to bridging is minimized by the large dimension of the pillow, typically 9 square metres (11 sq yd).

Another application for snow pillows is to estimate the snow weight on a roof to warn of potential for roof collapse.

Snow pillows were developed in the early 1960s.[2]

## Set-up

Large dimensions (e.g. 3 m × 3 m) of the pillow prevent any bridging that might occur from having an effect on the measurement readings. For snow pressure measurement on roofs using a smaller snow pillow (e.g. 1 m × 1 m) is the better choice, because of the weight of the filling of the snow pillow.[citation needed]

## See also

* Snowboard
* Snow gauge

## References

1. ↑ "Snow Pillow". American Meteorological Society. http://glossary.ametsoc.org/wiki/Snow_pillow. Retrieved 2018-02-21.
2. ↑ R.T. Beaumont, Soil Conservation Service, Portland, Oregon (October 1965). "Mt. Hood Pressure Pillow Snow Gage". Journal of Applied Meteorology (American Meteorology Society) 4 (5): 626. doi:10.1175/1520-0450(1965)004<0626:MHPPSG>2.0.CO;2. ISSN 1520-0450. Bibcode: 1965JApMe...4..626B.

* v
* t
* e

Earth-based meteorological equipment and instrumentation

* Anemometer
* Atmometer
* Barograph
* Barometer
* Ceiling balloon
* Ceiling projector
* Ceilometer
* Dark adaptor goggles
* Dewcell
* Disdrometer
* Dropsonde
* Field mill
* Heat flux sensor
* Hygrometer
* Ice accretion indicator
* Lidar
* Lightning detector
* Nephelometer
* Nephoscope
* Pan evaporation
* Pyranometer
* Pyrheliometer
* Radiosonde
* Rain gauge
* Snow gauge
* Snowboard
* Snow pillow
* SODAR
* Solarimeter
* Sounding rocket
* Stevenson screen
* Sunshine recorder
* Tethersonde
* Thermo-hygrograph
* Thermometer
* Tide gauge
* Transmissometer
* Weather balloon
* Weather buoy
* Weather radar
* Weather vane
* Whole sky camera
* Wind profiler
* Windsock

0.00

(0 votes)

Original source: https://en.wikipedia.org/wiki/Snow pillow. Read more

|

Retrieved from "https://handwiki.org/wiki/index.php?title=Astronomy:Snow_pillow&oldid=2987472"
*[v]: View this template
*[t]: Discuss this template
*[e]: Edit this template