Results 331 to 340 of about 152,334 (371)

Upwelling age: an indicator of local tendency for coastal upwelling

Journal of Oceanography, 2011
A proxy named “upwelling age”, defined as the ratio of wind time scale to “advection time”, was developed to quantify the local tendency for coastal upwelling. The formulation of the “advection time” was derived from Ekman theory. A 3D numerical model was used to validate and refine the theoretical formula by simulating a total of 30 cases of different
Lide Jiang, Lide Jiang, Xiao-Hai Yan, Xiao-Hai Yan, Laurence C. Breaker   +4 more
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Dominant Biological Control Over Upwelling on pCO2 in Sea East of Sri Lanka

Journal of Geophysical Research: Biogeosciences, 2018
Upwelling enhances pCO2 levels due to injection of carbon‐rich water to the surface despite the removal of carbon due to increase in primary production supported by enhanced nutrients.
K. Chakraborty, V. Valsala, G. Gupta, V. Sarma   +3 more
semanticscholar   +1 more source

Density changes in upwelling mantle

Physics of the Earth and Planetary Interiors, 1997
Abstract Gravity modelling of the litho-asthenosphere system in regions involved in extensional tectonics requires an accurate estimation of the vertical density profile in the upwelling asthenosphere. To this end, the calculation of the variation of several parameters is needed, i.e., the degree of thermal anomaly in the asthenosphere, the amount of
CELLA, Federico, RAPOLLA A.
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Upwelling by icebergs

Nature, 1977
A CASE is made for considering the influence of melting icebergs on the oceanographic characteristics of the Weddell Sea. In particular, the equivalent upwelling produced by melting must play a large factor in the supply of nutrients to the surface layers of this ocean.
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The Peruvian upwelling

Environmental Biology of Fishes, 1992
Pauly, I)., P. Muck, J. Mendo & I. Tsukayama (ed.) 1989. The Peruvian upwelling ecosystem: dynamics and interactions. Instituto de1 Mar de1 Peru (IMARPE), Callao, Peru, Deutsche Gesellschaft fur technische Zusammenarbeit (GTZ), GmbH, Eschborn, Federal Republic of Germany and International Centre for Living Aquatic Resources Management, Manila ...
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Arabian Sea Upwelling [PDF]

, 1973
When the IIOE was planned, it was considered a valuable objective to examine the upwelling regions which had been reported in the Arabian Sea (Bobzin, 1922) but had never before been the object of scientific observation.
P. M. Hargreaves, R. I. Currie, A. E. Fisher   +2 more
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Coastal Upwelling

2008
Publisher Summary This chapter focuses on the nitrogen (N) in coastal upwelling. Views on how and which phytoplanktons in coastal upwelling areas respond to the high supply rates of nitrogen (mostly in the form of NO3) have progressed. Information included in this update include descriptions of cell size-fractionated nitrogen uptake, dissolved ...
Richard C. Dugdale, Frances P. Wilkerson
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Guinea Current upwelling [PDF]

Nature, 1978
THE historical record of maritime observations are summarised here to indicate the dominant seasonal variations in upwelling, and in certain associated processes, within the Guinea Current region. The region is similar to other eastern ocean boundary upwelling areas in the appearance of cool sea temperatures near the coast, productive coastal fisheries,
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Sublithospheric upwelling distribution

Nature, 1980
Hot spots have been defined1 as centres of volcanism not associated with plate boundaries. Some authors2,3 have regarded them as surface expressions of upwellings of relatively high temperature material in the mantle. These upwellings, either deep mantle plumes2,4, or shallow convection cells5, create a hot spot on the surface of the Earth only where ...
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On the Upwelling of Downwelling Currents

Journal of Physical Oceanography, 2008
Abstract The term “downwelling currents” refers to currents with a downslope mass flux in the bottom boundary layer. Examples are the Malvinas and Southland Currents in the Southern Hemisphere and the Oyashio in the Northern Hemisphere.
Elbio Daniel Palma, Ricardo P. Matano
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