Results 61 to 70 of about 116,641 (323)

Satellite-Based Analysis of Surface Upwelling in the Sea Adjacent to Zhoushan Islands in China

open access: yesJournal of Marine Science and Engineering, 2023
The fish catch in natural upwelling areas, which accounts for only 0.1% of the ocean surface, accounts for more than 40% of the world’s catch. The Zhoushan fishery, which is the largest fishery in China, is mainly formed by a coastal upwelling that ...
Teng Xiao   +6 more
doaj   +1 more source

Effects of upwelling duration and phytoplankton growth regime on dissolved-oxygen levels in an idealized Iberian Peninsula upwelling system [PDF]

open access: yesNonlinear Processes in Geophysics, 2020
We apply a coupled modelling system composed of a state-of-the-art hydrodynamical model and a low-complexity biogeochemical model to an idealized Iberian Peninsula upwelling system to identify the main drivers of dissolved-oxygen variability and to study
J. H. Bettencourt   +5 more
doaj   +1 more source

Chemical Heterogeneities along the South Atlantic Mid-Ocean-Ridge (5-11°S): Shallow or Deep Recycling of Ocean Crust? [PDF]

open access: yes, 2011
Between 5° and 11°S, the Mid-Atlantic Ridge displays anomalous crustal thickness and geochemical compositions, thought to be related to either small scale upper mantle heterogeneities or a weak, diffuse mantle plume.
Garbe-Schönberg, Dieter   +5 more
core  

Marine radiocarbon reservoir effect of coastal waters off Cape Verde archipelago [PDF]

open access: yes, 2011
Quantification of the marine radiocarbon reservoir effect (Delta R) is essential in order to calibrate conventional C-14 dates from marine shell samples with reliability.
Ascough   +7 more
core   +1 more source

Zonation of bacterioplankton communities along aging upwelled water in the northern Benguela upwelling [PDF]

open access: yesFrontiers in Microbiology, 2015
Upwelling areas are shaped by enhanced primary production in surface waters, accompanied by a well-investigated planktonic succession. Although bacteria play an important role in biogeochemical cycles of upwelling systems, little is known about bacterial community composition and its development during upwelling events.
Bergen, Benjamin   +2 more
openaire   +5 more sources

Neoarchean Arc Magmatism and Crust Recycling in the Northern Marginal Zone of the Limpopo Complex, Zimbabwe: New Insights From Zircon U‐Pb‐Hf Isotopes of a Charnockite Suite

open access: yesGeological Journal, EarlyView.
Charnockites with 2691–2607 Ma magmatic ages from the NMZ show arc‐magmatic geochemical signatures. They correspond to the lower‐crustal equivalent of the Chilimanzi Suite Granite in the Zimbabwe Craton. Lu‐Hf isotopic data of magmatic zircons show negative εHf(t) values (−11.18 to −2.20) with TDMC ages of 3699–3158 Ma, suggesting their protolith ...
Toshiaki Tsunogae   +6 more
wiley   +1 more source

Decadal variability and trends of the Benguela upwelling system as simulated in a high-resolution ocean simulation [PDF]

open access: yesOcean Science, 2015
Detecting the atmospheric drivers of the Benguela upwelling systems is essential to understand its present variability and its past and future changes.
N. Tim, E. Zorita, B. Hünicke
doaj   +1 more source

Verification of the Ekman Upwelling Criterion with In Situ Temperature Measurements in the Southeastern Baltic Sea

open access: yesJournal of Marine Science and Engineering, 2023
Upwelling leads to a sharp and strong decrease in water temperature in the coastal zone of the southeastern Baltic Sea. The quality of existing hydrodynamic models cannot fully meet the requirements of accurate upwelling forecasts.
Stanislav Myslenkov   +3 more
doaj   +1 more source

State of the California current 2013-14: El niño looming [PDF]

open access: yes, 2014
In 2013, the California current was dominated by strong coastal upwelling and high productivity. Indices of total cumulative upwelling for particular coastal locations reached some of the highest values on record.
Abell, J   +37 more
core  

Upwelling in the Gulf of Lions

open access: yes, 1981
The hydrological and meteorological characteristics of the Gulf of Lions are such that upwelling occurs with no bias due to tides or strong longshore circulation. The sky is generally cloud-free, an uncommon feature in an upwelling area that allows extensive use of satellite infrared data.
Millot, Claude, Wald, Lucien
openaire   +3 more sources

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