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The adjoint method of data assimilation used operationally for shelf circulation
(1996-02)
A real-time shelf circulation model with data assimilation has been successfully used, possibly for the first time, on the outer Nova Scotian Shelf, The adjoint method was used to infer the time histories of flows across ...
The spectral effects of clouds on solar irradiance
(1998-12)
Knowledge of the spectral attenuation associated with clouds is important for accurate estimates of natural irradiance at the Earth's surface. We compare spectral measurements of visible downwelling irradiance, under varying ...
Distributions of Pigments and Primary Production in a Gulf-Stream Meander
(1993-08)
An investigation was made of physical effects of Gulf Stream meandering on the vertical and horizontal distributions of photosynthetic pigments and primary production. Cruises were conducted in the vicinity of a meander ...
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. ...
Primary Production Estimates from Recordings of Solar Stimulated Fluorescence in the Equatorial Pacific at 150-Degrees-W
(1992-01)
Biological, optical, and hydrographical data were collected on the WEC88 cruise along 150-degrees-W and during a 6-day time series station on the equator during February/March 1988. This area was characterized by a subsurface ...
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 ...
A new measurement of CO sub(2) eddy flux in the nearshore atmospheric surface layer
(1991)
Fluxes of CO sub(2) in the atmospheric surface layer have been measured at a shoreline site by the eddy correlation method using a new CO sub(2) sensor with greater sensitivity than the ones used in earlier studies. In ...
Ocean-atmosphere exchange of methyl bromide: NW Atlantic and Pacific Ocean studies
(1998-07)
Measurements of methyl bromide partial pressure and concentration in surface water and air samples in the NW Atlantic Ocean in July 1995 and the Pacific Ocean in October 1995 are presented, Mean atmospheric mixing ratios ...
Effect of the nonlinearity of the carbonate system on partial pressure of carbon dioxide in the oceans
(1995-04)
Partial pressure of CO sub(2) is a nonlinear function of several seawater properties. Due to the nonlinearity in this relationship, the partial pressure of a uniform ocean would be different from that of a nonuniform ocean ...
Measurements of methyl chloride in the Northwest Atlantic
(American Geophysical Union, 1994-04)
Methyl chloride was measured directly in seawater using a purge and trap system and gas chromatography with electron capture detection. The results indicate that surface waters of the northwest Atlantic are a source of ...