Results 21 to 30 of about 224 (112)
Evidence of long-term variability in the upper ocean has emerged for two decades. Most of the issues discussed raise a lot of questions. What is the driver of the decadal oscillation of rainfall in Europe that has been observed since the end of the 20th ...
Jean-Louis Pinault
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This study investigates the impact of future changes in atmospheric synoptic variability (ASV) on ocean properties and biogeochemical cycles in the tropical Pacific Ocean using coupled and forced atmosphere–ocean model experiments.
Olaf Duteil, Wonsun Park
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Multiple Fquilibria for Cross-Gyre Flow between Subpolar and Subtropical Gyres [PDF]
Abstract A simple Sverdrup-type two-layer model that allows the outcropping of isopycnals is forced by wind stress, is completed with a frictional western boundary layer, and is investigated along the zero wind-stress curl line separating the subpolar gyre from the subtropical gyre.
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Temporal Stability of Genetic Structure in a Mesopelagic Copepod. [PDF]
Although stochasticity in oceanographic conditions is known to be an important driver of temporal genetic change in many marine species, little is known about whether genetically distinct plankton populations can persist in open ocean habitats.
Erica Goetze +4 more
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Projected Changes in Photosynthetic Picoplankton in a Warmer Subtropical Ocean
The oligotrophic subtropical gyres are the largest biome on Earth, where picoplankton constitute the dominant autotrophs. The trend for autotrophic picoplankton to increase with sea temperature has led to predictions that picophytoplankton abundance will
Susana Agusti +6 more
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Eddy Cancellation of the Ekman Cell in Subtropical Gyres
AbstractThe presence of large-scale Ekman pumping associated with the climatological wind stress curl is the textbook explanation for low biological activity in the subtropical gyres. Using an idealized, eddy-resolving model, it is shown that Eulerian-mean Ekman pumping may be opposed by an eddy-driven circulation, analogous to the way in which the ...
Doddridge, Edward W. +2 more
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Proteorhodopsin variability and distribution in the North Pacific Subtropical Gyre [PDF]
Abstract Proteorhodopsin is a light-activated retinal-containing proton pump found in many marine bacteria. These photoproteins are globally distributed in the ocean’s photic zone and are capable of generating a proton motive force across the cell membrane.
Daniel K Olson +4 more
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The unicellular cyanobacterium Prochlorococcus is the most dominant resident of the subtropical gyres, which are considered to be the largest biomes on earth.
Priscila K. Lange +6 more
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Plastic pollution is a great threat to the marine environment. Owing to its low density, a substantial fraction of plastic debris is transported across ocean surfaces by currents.
Kristian Syberg +10 more
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Chlorophyll Variability in the Oligotrophic Gyres: Mechanisms, Seasonality and Trends
A 16-year (1998-2013) analysis of trends and seasonal patterns was conducted for the five subtropical ocean gyres using satellite data: chlorophyll-a (Chl-a) retrievals from ocean color, sea surface temperature (SST), and sea-level anomaly (SLA).
Sergio Romano Signorini +3 more
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