Printer Friendly
Dictionary, Encyclopedia and Thesaurus - The Free Dictionary
3,921,673,575 visitors served.
forum Join the Word of the Day Mailing List For webmasters
?
Dictionary/
thesaurus
Medical
dictionary
Legal
dictionary
Financial
dictionary
Acronyms
 
Idioms
Encyclopedia
Wikipedia
encyclopedia
?

upwelling

   Also found in: Encyclopedia, Wikipedia 0.01 sec.
up·well·ing  (p-wlng, pwl-)
n.
1. The act or an instance of rising up from or as if from a lower source: an upwelling of emotion.
2. A process in which cold, often nutrient-rich waters from the ocean depths rise to the surface.

upwelling  (p-wlng)
The rising of cold, usually nutrient-rich waters from the ocean depths to the warmer, sunlit zone at the surface. Upwelling usually occurs in the subtropics along the western continental coasts, where prevailing trade winds drive the surface water away from shore, drawing deeper water upward to take its place. Because of the abundance of krill and other nutrients in the colder waters, these regions are rich feeding grounds for a variety of marine and avian species. Upwelling can also occur in the middle of oceans where cyclonic circulation is relatively permanent or where southern trade winds cross the Equator.


Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content.
?Page tools
Printer friendly
Cite / link
Feedback
Add definition
Mentioned in?  References in periodicals archive?   Dictionary browser?   Full browser?
 
During the summer of 1997-1998, measurements of beam absorption and beam attenuation coefficients, and downwelling and upwelling irradiance were made in the Southern Ocean along a S-N transect at 6 degrees E.
This could occur through a combination of known mechanisms, including increased stratification of the water column, changes in ocean upwelling and mixing, aerosol and dust nutrient input, increased acidity, and even changes in water clarity," he added.
Most will probably spawn downstream but maybe, given the perfect combination of lift from an upwelling current generated by cascading water, sufficient reserves of strength at the end of their strenuous journey from the sea to these Pennine foothills and one final desperate exertion, a few might make it over this last barrier.
 
 
 
Dictionary, Thesaurus, and Translations
?

Terms of Use | Privacy policy | Feedback | Advertise with Us | Copyright © 2012 Farlex, Inc.
Disclaimer
All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.