Editing Snow (section)

====Aviation====
{{See also|Ice protection system}}
[[File:2008 aircraft deicing at gate.jpg|thumb|right|Deicing an aircraft during a snow event]]
In order to keep airports open during winter storms, runways and taxiways require snow removal. Unlike roadways, where chloride chemical treatment is common to prevent snow from bonding to the pavement surface, such chemicals are typically banned from airports because of their strong corrosive effect on aluminum aircraft. Consequently, mechanical brushes are often used to complement the action of snow plows. Given the width of runways on airfields that handle large aircraft, vehicles with large plow blades, an echelon of plow vehicles or [[rotary snowplow]]s are used to clear snow on runways and taxiways. Terminal aprons may require {{convert|6|ha}} or more to be cleared.<ref name=Vinson>
{{Citation
 |first1            = Becker
 |last1             = John C.
 |first2           = David C.
 |last2            = Esch
 |editor-last      = Vinson
 |editor-first     = Ted S.
 |editor2-last     = Rooney
 |editor2-first    = James W.
 |editor3-last     = Haas
 |editor3-first    = Wilbur H.
 |title            = Roads and Airfields in Cold Regions: A State of the Practice Report
 |contribution     = Road and airfield maintenance
 |series           = CERF Reports
 |year             = 1996
 |page             = 252
 |publisher        = ASCE Publications
 |url              = https://books.google.com/books?id=VfO8QuV0q0sC&pg=PA252
 |isbn             = 978-0-7844-7412-9
 }}</ref>

Properly equipped aircraft are able to fly through snowstorms under [[instrument flight rules]]. Prior to takeoff, they require [[deicing fluid]] during snowstorms to prevent accumulation and freezing of snow and other precipitation on wings and fuselages, which may compromise the safety of the aircraft and its occupants.<ref>Transport Canada, Ottawa, ON (2016). [http://www.tc.gc.ca/eng/civilaviation/publications/tp14052-chapter8-312.htm "TP 14052. Guidelines for Aircraft Ground-Icing Operations. Chapter 8. Fluids."] {{webarchive|url=https://web.archive.org/web/20140527220255/http://www.tc.gc.ca/eng/civilaviation/publications/tp14052-chapter8-312.htm |date=May 27, 2014 }} Retrieved May 14, 2016.</ref> In flight, aircraft rely on a variety of mechanisms to avoid rime and other types of icing in clouds,<ref>
{{cite web
 | url = http://www.airspacemag.com/how-things-work/electro-mechanical-deicing-6660440/
 | title = Electro-mechanical deicing
 | last = Wright
 | first = Tim
 | date = March 2004
 | website = Air & Space Magazine
 | publisher = Smithsonian
 | access-date = February 20, 2017
 }}</ref> these include pulsing [[deicing boot|pneumatic boots]], electro-thermal areas that generate heat, and fluid deicers that bleed onto the surface.<ref>{{cite web
 |url         = https://www.aopa.org/-/media/files/aopa/home/pilot-resources/asi/safety-advisors/sa22.pdf?la=en
 |title       = Aircraft Deicing and Anti-icing Equipment
 |last        = Ells
 |first       = Steve
 |date        = 2004
 |website     = Safety Advisor – Weather No. 2
 |publisher   = Aircraft Owners and Pilots Association
 |access-date = December 1, 2016
 |quote       = Anti-icing equipment is turned on before entering icing conditions and is designed to prevent ice from forming. Deicing equipment is designed to remove ice after it begins to accumulate on the airframe.
 |url-status=live
 |archive-url  = https://web.archive.org/web/20161203000432/https://www.aopa.org/-/media/files/aopa/home/pilot-resources/asi/safety-advisors/sa22.pdf?la=en
 |archive-date = December 3, 2016
 |df          = mdy-all
}}</ref>