up·​well·​ing | \ˌəp-ˈwe-liŋ \

Definition of upwelling 

: the process or an instance of rising or appearing to rise to the surface and flowing outward especially : the process of upward movement to the ocean surface of deeper cold usually nutrient-rich waters especially along some shores due to the offshore movement of surface waters (as from the action of winds and the Coriolis force)

Examples of upwelling in a Sentence

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The water temperature was 54 degrees and rich with plankton from months of north winds and upwelling. Tom Stienstra, SFChronicle.com, "Chart-buster times: salmon to whales, bears to bighorns," 8 July 2018 The upwelling of cold water resulted in the sea surface temperature cooling five degrees in the storm’s wake. Jason Samenow, Washington Post, "The Category 4 hurricane named Bud collapsed in spectacular fashion," 13 June 2018 Stronger-than-normal high pressure in the subtropical Atlantic has driven stronger trade winds that have intensified ocean mixing, evaporation and upwelling, and the tropical Atlantic has turned quite cold. Phil Klotzbach, Washington Post, "The water in the tropical Atlantic is the coldest in decades. That may stymie hurricane season.," 18 June 2018 Weaker trade winds meant less mixing of the ocean water, less evaporation and less upwelling of cold water, which collectively led to very warm tropical Atlantic Ocean temperatures. Phil Klotzbach, Washington Post, "The water in the tropical Atlantic is the coldest in decades. That may stymie hurricane season.," 18 June 2018 After 100 hours of work, the student engineered a 3-D printed, five-pound model of an automatic shellfish upwelling process, or a silo cleaner. BostonGlobe.com, "Tea by the sea, Korean peace medals, and $2,000 to fight hunger," 13 July 2018 Lots of fish near shallow structure despite cold water upwellings. Mark Blythe, OrlandoSentinel.com, "Central Florida fishing forecast: July 6," 5 July 2018 These whales usually rely on current upwellings from deep waters to fertilize phytoplankton, which are eaten by zooplankton, which are in turn consumed by the tiny critters that whales love to eat. Brigit Katz, Smithsonian, "Huge Blue Whale Sighted in the Red Sea for the First Time," 2 June 2018 Essentially, Mother's Day might cause an upwelling of emotions antithetical to the celebratory holiday Mother's Day is supposed to be. refinery29.com, "The Most Heartbreaking Movies About Motherhood," 9 May 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'upwelling.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of upwelling

1868, in the meaning defined above

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The first known use of upwelling was in 1868

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