Editing Snow (section)

===Melting===
[[File:1997 Red River Flood Grand Forks.jpg|thumb|right|Snowmelt-induced flooding of the [[Red River of the North]] in [[1997 Red River flood|1997]]]]
Many rivers originating in mountainous or high-latitude regions receive a significant portion of their flow from snowmelt. This often makes the river's flow highly seasonal resulting in periodic [[flooding]]<ref name="Howard Perlman">{{cite web|url=http://ga.water.usgs.gov/edu/watercyclesnowmelt.html|title=The Water Cycle: Snowmelt Runoff|author=Howard Perlman|publisher=[[United States Geological Survey]]|date=May 13, 2009|access-date=July 7, 2009|url-status=dead|archive-url=https://web.archive.org/web/20090813020946/http://ga.water.usgs.gov/edu/watercyclesnowmelt.html|archive-date=August 13, 2009|df=mdy-all}}</ref> during the spring months and at least in dry mountainous regions like the mountain West of the US or most of [[Iran]] and [[Afghanistan]], very low flow for the rest of the year. In contrast, if much of the melt is from [[glaciated]] or nearly glaciated areas, the melt continues through the warm season, with peak flows occurring in mid to late summer.<ref>{{cite web|url=http://watershed.ucdavis.edu/copper_river/background/data/BowersoxCopper.pdf|title=Hydrology of a Glacial Dominated System, Copper River, Alaska|author=Randy Bowersox|page=2|access-date=July 8, 2009|date=June 20, 2002|publisher=[[University of California]]-Davis|url-status=live|archive-url=https://web.archive.org/web/20100612005951/http://watershed.ucdavis.edu/copper_river/background/data/BowersoxCopper.pdf|archive-date=June 12, 2010|df=mdy-all}}</ref>