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Showing 1 to 20 of 388 for “"ATLANTIC Ocean"”.
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Wind variability over the southeast Atlantic Ocean
… of low-level winds over the southeast Atlantic Ocean is investigated using high-resolution satellite derived QuikSCA T wind data spanning a 5- year period from August 1999 to July 2004. Wavelet analysis is applied to 20-70 day bandpass filtered zonal and meridional wind time series over …
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Distribution of thiols in the northwest Atlantic Ocean
… (especially copper and mercury) in the surface ocean that can impact cycling and bioavailability of those elements. In this study, I present seven concentration profiles of cysteine and glutathione, two low-molecular weight thiols, from the coastal northwest Atlantic Ocean and the Bermuda …
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Agulhas retroflection rings in the South Atlantic Ocean
… and energy from the South Indian into the South Atlantic Ocean. Few hydrographic measurements have been collected from Agulhas rings in the South Atlantic Ocean and their characteristics and influence on the waters of the Cape Basin through which they pass are thus little known. The temperature, …
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Geochemistry and mineralogy of selected Atlantic Ocean basalts
… variations in lavas from four localities in the Atlantic Ocean are evaluated quantitatively in terms of fractional crystallisation and partial melting models. Samples studied are from the Mid-Atlantic Ridge at 36°49 'N (FAMOUS), from the Islas Orcadas fracture zone on the Southwest Indian Ocean …
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Distribution of thiols in the northwest Atlantic Ocean
… (especially copper and mercury) in the surface ocean that can impact cycling and bioavailability of those elements. In this study, I present seven concentration profiles of cysteine and glutathione, two low-molecular weight thiols, from the coastal northwest Atlantic Ocean and the Bermuda …
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Bacterioplankton community composition and activity in the Atlantic Ocean
… in six different provinces of the Atlantic<br/>Ocean were examined between 1996 and 2004. The abundance and integrated biomass<br/>of three prokaryote groups (Prochlorococcus spp., Synechococcus spp. and heterotrophic<br/>bacteria) were used to detect standing stock changes and …
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Selective Dissolution of Recent Coccoliths in the Atlantic Ocean
Made available in DSpace on 2014-12-11T18:10:03Z (GMT). No. of bitstreams: 1 7317403.pdf: 6118427 bytes, checksum: eac83a492b5c5ede25a3d2e8d20fb914 (MD5) Previous issue date: 1972
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On the subtropical front in the South Atlantic Ocean
… of previous literature covers the majority of oceanographic research undertaken in the region of interest. New satellite derived oceanographic data sets and the SODA Reanalysed model are used to overcome the sparse extent of in-situ data in this region. Using latitudinal temperature gradients …
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Latitudinal variation in plankton size spectra along the Atlantic Ocean
… marine pelagic food web, and consequently the oceanic carbon cycle. The transfer of energy between trophic levels can be inferred from regular patterns in population size structure, where plots of abundance within size classes, also known as plankton size spectra, typically show a power-law …
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Heat Storage and Transport Processes in the Tropical Atlantic Ocean
… storage and transport processes of the tropical Atlantic play an important role in the climate of three continents. The exploration of how the warm water mass maintenance in the equatorial basin depends on various external factors is therefore an important task. This study examines the annual …
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Scavenging and transport of thorium radioisotopes in the North Atlantic Ocean
Many chemical constituents are removed from the ocean by attachment to settling particles, a process referred to as “scavenging.” Radioisotopes of thorium, a highly particle-reactive element, have been used extensively to study scavenging in the ocean. However, this process is complicated by the …
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Studies of deep-sea sedimentary microtopography in the North Atlantic Ocean
… m) and in the Rockall Trough (northeastern North Atlantic, water depth greater than 2000 m) have been formed as bed forms of deep currents. These bed forms, all developed in cohesive sediments, include current ripples (spacings of tens of centimeters, formed transverse to the flow), longitudinal …
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Scavenging and transport of thorium radioisotopes in the North Atlantic Ocean
Many chemical constituents are removed from the ocean by attachment to settling particles, a process referred to as "scavenging." Radioisotopes of thorium, a highly particle-reactive element, have been used extensively to study scavenging in the ocean. However, this process is complicated by the …
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Tracer applications of anthropogenic iodine-129 in the North Atlantic Ocean
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 1997.
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Studies of deep-sea sedimentary microtopography in the North Atlantic Ocean.
Thesis. 1978. Ph.D.--Massachusetts Institute of Technology. Dept. of Earth and Planetary Science.
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Subduction in an eddy-resolving state estimate of the northeast Atlantic Ocean
… Here, a new tool to study the eastern North Atlantic Ocean is created by combining a regional, eddy-resolving numerical model with observations to produce a state estimate of the ocean circulation. The estimate is a synthesis of a variety of in-situ observations from the Subduction …
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The distribution of dissolved silica in the deep western North Atlantic Ocean
… of dissolved silica in the deep western North Atlantic Ocean is presented. The potential temperature-dissolved silica relationship is compared with the potential temperature salinity relationship in the North Atlantic Deep Water. Geographical variations in the potential temperature- dissolved …
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Key mechanisms of surface water pCO2 variability in the North Atlantic Ocean
A proxy for the North Atlantic gyre circulation has been developed, using sea-surface height from altimetry. In conjunction with the winter North Atlantic Oscillation (NAO) index, statistical analysis has been applied to understand the key mechanisms of surface water partial pressure of CO2 (pCO2) …
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Evaluation of an eddy resolving HYCOM simulation in the South Atlantic Ocean
The South Atlantic Ocean acts as a key region of ocean teleconnections and water mass transformation, directly transporting waters from the Southern, Pacific and Indian Oceans towards the North Atlantic and feeding the upper branch of the Atlantic Meridional Overturning Circulation. To date, this …
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Subduction in an eddy-resolving state estimate of the northeast Atlantic Ocean
… Here, a new tool to study the eastern North Atlantic Ocean is created by combining a regional, eddy-resolving numerical model with observations to produce a state estimate of the ocean circulation. The estimate is a synthesis of a variety of in-situ observations from the Subduction …
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