Coastal upwelling off Peru and Mauritania inferred from helium isotope disequilibrium
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چکیده
منابع مشابه
Methane emissions from the upwelling area off Mauritania (NW Africa)
Coastal upwelling regions have been identified as sites of enhanced CH4 emissions to the atmosphere. The coastal upwelling area off Mauritania (NW Africa) is one of the most biologically productive regions of the world’s ocean but its CH4 emissions have not been quantified so far. More than 1000 measurements of atmospheric and dissolved CH4 in the surface layer in the upwelling area off Maurita...
متن کاملRapid 20th-century increase in coastal upwelling off northwest Africa.
Near-shore waters along the northwest African margin are characterized by coastal upwelling and represent one of the world's major upwelling regions. Sea surface temperature (SST) records from Moroccan sediment cores, extending back 2500 years, reveal anomalous and unprecedented cooling during the 20th century, which is consistent with increased upwelling. Upwelling-driven SSTs also vary out of...
متن کاملNearshore circulation during upwelling inferred from the distribution of dissolved cadmium off the Oregon coast
The effectiveness of dissolved cadmium (Cd) as a tracer of coastal upwelling is demonstrated by comparing its water column distribution to that of traditional upwelling indicators, in particular phosphate (P) and salinity, as well as equatorward wind forcing at the Oregon coast. Cd and P concentrations in samples collected on board ship on 17–27 August 1995 between 3 and 100 km from the coast o...
متن کاملCoastal upwelling – ENSO modulation
Introduction Conclusions References Tables Figures ◭ ◮ ◭ ◮ Back Close Full Screen / Esc Abstract Introduction Conclusions References Tables Figures ◭ ◮ ◭ ◮ Back Close Full Screen / Esc Abstract An index of El Niño Southern Oscillation (ENSO) in the Pacific during pre monsoon is shown to account for a significant part of the variability of coastal Sea Surface Temperature (SST) anomalies measured...
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ژورنال
عنوان ژورنال: Biogeosciences
سال: 2015
ISSN: 1726-4189
DOI: 10.5194/bg-12-7519-2015