Oceanography: Recent submissions
Now showing items 81-100 of 152
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Methyl iodide distribution in the ocean and fluxes to the atmosphere
(1999-05)Methyl iodide concentrations have been measured in air samples, surface, and subsurface waters of the NW Atlantic, NE Atlantic, and Pacific Oceans. They are shown to be substantially oversaturated in all surface waters. ... -
Geochemical Profiles in the Central Arctic Ocean - their Relation to Freezing and Shallow Circulation
(1983)No abstract available. -
Seasonal and spatial variations in methyl chloride in NW Atlantic waters
(2007-05)[1] Methyl chloride concentrations were measured in the upper 200 m of the water column of the NW Atlantic during three cruises along the same track in spring, summer and fall of 2003. Distinct seasonality was apparent, ... -
Dichloromethane in North Atlantic waters
(2004-09)[1] Dichloromethane is an atmospheric trace gas that has a tropospheric lifetime on the order of 5 months and has major anthropogenic sources. Evidence has been presented for an oceanic source. This paper reports measurements ... -
A relationship between heat transfer to sea ice and temperature-salinity properties of Arctic Ocean waters
(1988)It is demonstrated that the characteristic temperature-salinity relationship shown by thermocline waters of the Arctic Ocean can be reproduced using a simple model based on transfer of heat directly from these waters to ... -
A description of water types on the Mackenzie Shelf of the Beaufort Sea during winter
(1992)For a number of years during the 1980s, observations of the physical and chemical properties of seawater in the southeastern Beaufort Sea have been acquired in late winter. The most complete data set, from 1987, has been ... -
Natural emissions of chlorine-containing gases: Reactive Chlorine Emissions Inventory
(1999-04)Although there are many chlorine-containing trace gases in the atmosphere, only those with atmospheric lifetimes of 2 years or fewer appear to have significant natural sources. The most abundant of these gases are methyl ... -
Heat-Flow, Depth, and Crustal Thickness of Marginal Basins of South Philippine Sea
(1976)No abstract available. -
Evidence for asymmetric nonvolcanic rifting and slow incipient oceanic accretion from seismic reflection data on the Newfoundland margin
(2006-09)[ 1] Prestack depth migrations of seismic reflection data collected around the Ocean Drilling Program (ODP) Leg 210 transect on the Newfoundland nonvolcanic margin delineate three domains: ( 1) extended continental crust, ... -
Extinct spreading center in the Labrador Sea: Crustal structure from a two-dimensional seismic refraction velocity model
(1995-02/10)The Labrador Sea contains a rare example of an abandoned mid-ocean ridge where active accretion of oceanic crust ceased due to a change in the spreading geometry of lithospheric plates. Seismic refraction data were collected ... -
Crustal structure of the Labrador Sea conjugate margin and implications for the formation of nonvolcanic continental margins
(1995-12)Wide-angle seismic studies have determined the detailed velocity structure along a 350-km-long profile across the Labrador margin. Combination of this model with a previously published cross section for the southwestern ... -
Variations in heat flow across the Goban Spur and Galicia Bank continental margins
(1991)Presents the results of 44 new heat flow stations which were taken in 1984 and 1989 in profiles across the Goban Spur and Galicia Bank continental margins (NE Atlantic Ocean). Simple extensional models indicate that the ... -
Deep structure of the ocean-continent transition in the southern Iberia Abyssal Plain from seismic refraction profiles: Ocean Drilling Program (Legs 149 and 173) transect
(1999-04)We present a wide-angle seismic refraction study of an 80x40 km region of the southern Iberia Abyssal Plain, south of Galicia Bank. An intersecting grid of two E-W and four NS wide-angle reflection/refraction profiles is ... -
Paleomagnetism of Dsdp Sediments, Phase-Shifting of Magnetic-Anomalies, and Rotations of West Philippine Basin
(1977)No abstract available. -
Thermal Conduction Across Fracture Zones and Gravitational Edge Effect
(1976)No abstract available. -
The continent-ocean crustal transition across the southwest Greenland margin
(1994-05/10)The complete crustal transition across the nonvolcanic, southwest Greenland continental margin of the Labrador Sea is examined using wide-angle and coincident vertical-incidence seismic profiles. Six ocean bottom seismometers ... -
Seismic study of the transform-rifted margin in Davis Strait between Baffin Island (Canada) and Greenland: What happens when a plume meets a transform
(2007-04)[ 1] The Davis Strait transform margin was studied using a 630-km-long wide-angle reflection/ refraction seismic transect extending from SE Baffin Island to Greenland. Dense airgun shots were recorded by 28 ocean bottom ... -
Heat flow in the Balearic and Tyrrhenian basins, western Mediterranean
(1985-01/10)Presents the results of three detailed heat flow surveys which are used to investigate the variations of heat flow and age of the Balearic and Tyrrhenian basins in the western Mediterranean. The heat flow values are within ... -
Three-dimensional structure of the Torngat Orogen (NE Canada) from active seismic tomography
(2000-10)The crustal velocity structure and the Moho depth of the Proterozoic Torngat Orogen, NE Canada, is determined by active seismic tomography using travel times of crustal turning rays and Moho reflections. The orogen developed ... -
Crustal structure of the ocean-continent transition at Flemish Cap: Seismic refraction results
(2003-11)[1] We conducted a seismic refraction experiment across Flemish Cap and into the deep basin east of Newfoundland, Canada, and developed a velocity model for the crust and mantle from forward and inverse modeling of data ...