Editing Snow (section)

====Mountain effects====
{{Main|Precipitation types#Orographic}}
[[Orography|Orographic]] or [[relief]] snowfall is created when moist air is forced up the [[windward]] side of [[mountain]] ranges by a large-scale [[wind]] flow. The lifting of moist air up the side of a mountain range results in [[Adiabatic lapse rate|adiabatic]] cooling, and ultimately [[condensation]] and precipitation. Moisture is gradually removed from the air by this process, leaving [[Foehn wind|drier and warmer air]] on the descending, or [[leeward]], side.<ref name="MT">Physical Geography. [http://www.physicalgeography.net/fundamentals/8e.html CHAPTER 8: Introduction to the Hydrosphere (e). Cloud Formation Processes.] {{webarchive|url=https://web.archive.org/web/20081220230524/http://www.physicalgeography.net/fundamentals/8e.html |date=December 20, 2008 }} Retrieved on January 1, 2009.</ref> The resulting enhanced snowfall,<ref>{{Citation
 |first1        = Mark T.
 |last1         = Stoelinga
 |first2       = Ronald E.
 |last2        = Stewart
 |first3       = Gregory
 |last3        = Thompson
 |first4       = Julie M.
 |last4        = Theriault
 |editor-last  = Chow
 |editor-first = Fotini K.
 |display-editors=1
 |editor2=Stephan F.J. De Wekker
 |editor3=Bradley J. Snyder
 |title        = Mountain Weather Research and Forecasting: Recent Progress and Current Challenges
 |contribution = Micrographic processes within winter orographic cloud and precipitation systems
 |series       = Springer Atmospheric Sciences
 |year         = 2012
 |page         = 3
 |publisher    = Springer Science & Business Media
 |bibcode = 2013mwrf.book.....C
 |url          = https://books.google.com/books?id=ihjFd5Q8oPMC&pg=PA3
 |isbn         = 978-94-007-4098-3
 }}</ref> along with the [[Lapse rate|decrease in temperature]] with elevation,<ref>{{cite book|author=Mark Zachary Jacobson|title=Fundamentals of Atmospheric Modeling|publisher=Cambridge University Press|edition=2nd|year=2005|isbn=978-0-521-83970-9}}</ref> combine to increase snow depth and seasonal persistence of snowpack in snow-prone areas.<ref name = Snowenclyclopedia/><ref name=Singh>
{{cite book
 |last        = P.
 |first       = Singh
 |title       = Snow and Glacier Hydrology
 |publisher   = Springer Science & Business Media
 |series      = Water Science and Technology Library
 |volume      = 37
 |date        = 2001
 |page        = 75
 |url         = https://books.google.com/books?id=0VW6Tv0LVWkC&pg=PA75
 |isbn        = 978-0-7923-6767-3
 }}</ref>

[[Mountain waves]] have also been found to help enhance precipitation amounts downwind of mountain ranges by enhancing the lift needed for condensation and precipitation.<ref>{{cite journal|last1=Gaffin|first1=David M.|last2=Parker|first2=Stephen S.|last3=Kirkwood|first3=Paul D.|date=2003|title=An Unexpectedly Heavy and Complex Snowfall Event across the Southern Appalachian Region|journal=Weather and Forecasting|volume=18|issue=2|pages=224–235|bibcode=2003WtFor..18..224G|doi=10.1175/1520-0434(2003)018<0224:AUHACS>2.0.CO;2|doi-access=free}}</ref>