The act or an instance of rising up from or as if from a lower source: an upwelling of emotion. (noun)
A process in which cold, often nutrient-rich waters from the ocean depths rise to the surface.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "upwelling" in a sentence
"Every seven years, due to the interference of El Niño currents the cold water upwelling is altered."
"Deep ocean currents surface near Antarctica a process called upwelling, bringing with them lots of nutrients and dissolved carbon dioxide."
"Andrus and colleagues at the University of Arizona and the University of Maine, were awarded a $600,000 National Science Foundation grant to develop a better understanding of a deep ocean phenomenon known as upwelling and its impact on the climate and the economy of the people who lived in Peru over the past 13,000 years."