upwelling

noun

up·​well·​ing ˌəp-ˈwe-liŋ How to pronounce upwelling (audio)
: 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)

Example Sentences

Recent Examples on the Web Forecasters say a coastal eddy might develop on Wednesday, which could slow the coastal upwelling, allowing sea surface temperatures to rise. Gary Robbins, San Diego Union-Tribune, 3 Aug. 2021 The change was due to upwelling, a phenomenon in which winds strike the coast at an angle, causing warmer surface water to move offshore, allowing colder, deeper water to rise. Gary Robbins, San Diego Union-Tribune, 10 Aug. 2022 But the public can find easy relief at beach, where sea surface temperatures are running more than 10 degrees below average due to prolonged upwelling. Gary Robbins, San Diego Union-Tribune, 3 Aug. 2021 Forecasters say onshore winds are pushing the warmer, upper layer of ocean away from the coast, allowing cooler water to rise, a phenomenon known as upwelling. Gary Robbins, San Diego Union-Tribune, 14 July 2022 Researchers did know that oxygen levels dipped every spring and summer, when a process called upwelling pulled naturally low-oxygen waters from the deep Pacific in toward shore. Julia Rosen, Smithsonian Magazine, 8 Mar. 2022 The northwest winds contribute to upwelling, where the cold California Current flows southward from Alaska. Los Angeles Times, 11 May 2022 Still, two years into the pandemic, many people have gotten an intuitive feel for what those words can imply: a sudden and sustained upwelling in infections that activates our crisis radar. Katherine J. Wu, The Atlantic, 5 May 2022 That upwelling of iron is fueling thriving ecosystem communities with species of algae, icefish, seals and jellyfish. Allison Chinchar, CNN, 7 May 2022 See More

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.

Word History

First Known Use

1868, in the meaning defined above

Time Traveler
The first known use of upwelling was in 1868

Dictionary Entries Near upwelling

Cite this Entry

“Upwelling.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/upwelling. Accessed 9 Dec. 2022.

Kids Definition

upwelling

noun
up·​well·​ing ˌəp-ˈwel-iŋ How to pronounce upwelling (audio)
: the process or an example of rising or appearing to rise to the surface and flowing outward
especially : the process of movement of deeper cooler layers of ocean water that are often rich in nourishing substances to the surface

More from Merriam-Webster on upwelling

Last Updated: - Updated example sentences
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