The solubility of nitrogen, oxygen and argon in water and seawater

Weiss, Ray F.

doi:10.1016/0011-7471(70)90037-9

Cited by 1,300 publications

(1,121 citation statements)

References 12 publications

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“…The O 2 solubility, η l,h O 2 , was converted from the Bunsen solubility coefficients that depend on prognostic temperatures, and to a lesser degree, on prognostic salinities of the ocean surface layers (Weiss, 1970) to model units using the ideal gas mole volume. The quantities [O 2 ] l,h are the prognostic dissolved oxygen concentrations in the ocean surface layers (Sect.…”

Section: Atmosphere Chemistry and Air-sea Gas Exchangementioning

confidence: 99%

Presentation, calibration and validation of the low-order, DCESS Earth System Model (Version 1)

2008

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Abstract.A new, low-order Earth System Model is described, calibrated and tested against Earth system data. The model features modules for the atmosphere, ocean, ocean sediment, land biosphere and lithosphere and has been designed to simulate global change on time scales of years to millions of years. The atmosphere module considers radiation balance, meridional transport of heat and water vapor between low-mid latitude and high latitude zones, heat and gas exchange with the ocean and sea ice and snow cover. Gases considered are carbon dioxide and methane for all three carbon isotopes, nitrous oxide and oxygen. The ocean module has 100 m vertical resolution, carbonate chemistry and prescribed circulation and mixing. Ocean biogeochemical tracers are phosphate, dissolved oxygen, dissolved inorganic carbon for all three carbon isotopes and alkalinity. Biogenic production of particulate organic matter in the ocean surface layer depends on phosphate availability but with lower efficiency in the high latitude zone, as determined by model fit to ocean data. The calcite to organic carbon rain ratio depends on surface layer temperature. The semi-analytical, ocean sediment module considers calcium carbonate dissolution and oxic and anoxic organic matter remineralisation. The sediment is composed of calcite, non-calcite mineral and reactive organic matter. Sediment porosity profiles are related to sediment composition and a bioturbated layer of 0.1 m thickness is assumed. A sediment segment is ascribed to each ocean layer and segment area stems from observed ocean depth distributions. Sediment burial is calculated from Correspondence to: G. Shaffer (gs@dcess.ku.dk) sedimentation velocities at the base of the bioturbated layer. Bioturbation rates and oxic and anoxic remineralisation rates depend on organic carbon rain rates and dissolved oxygen concentrations. The land biosphere module considers leaves, wood, litter and soil. Net primary production depends on atmospheric carbon dioxide concentration and remineralization rates in the litter and soil are related to mean atmospheric temperatures. Methane production is a small fraction of the soil remineralization. The lithosphere module considers outgassing, weathering of carbonate and silicate rocks and weathering of rocks containing old organic carbon and phosphorus. Weathering rates are related to mean atmospheric temperatures.A pre-industrial, steady state calibration to Earth system data is carried out. Ocean observations of temperature, carbon 14, phosphate, dissolved oxygen, dissolved inorganic carbon and alkalinity constrain air-sea exchange and ocean circulation, mixing and biogeochemical parameters. Observed calcite and organic carbon distributions and inventories in the ocean sediment help constrain sediment module parameters. Carbon isotopic data and carbonate vs. silicate weathering fractions are used to estimate initial lithosphere outgassing and rock weathering rates. Model performance is tested by simulating atmospheric greenhouse gas increases, global warming ...

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Section: Atmosphere Chemistry and Air-sea Gas Exchangementioning

confidence: 99%

Presentation, calibration and validation of the low-order, DCESS Earth System Model (Version 1)

2008

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“…The labelled 15 N concentration was estimated by multiplying its isotopic ratios ( 14 N 15 N/total N 2 and 15 N 15 N/total N 2 ) by the calculated N 2 concentration in the air trapped in the head-space and in water layer knowing the distribution coefficient of N 2 in sea water as a function of temperature (Weiss, 1970).…”

Section: Calculationsmentioning

confidence: 99%

Seasonal variability of denitrification efficiency in northern salt marshes: An example from the St. Lawrence Estuary

Poulin

Pelletier

Saint-Louis

2007

Marine Environmental Research

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“…where C i * (T,S,P) are the moist air solubility equilibrium concentrations as functions of temperature, salinity, and atmospheric pressure (Clever, 1979;Weiss, 1970Weiss, , 1971Weiss and Kyser, 1978), and z i are the noble gas volume fractions in dry air. A describes the initial amount of dry entrapped air per unit mass of water and F parameterizes the fractionation of excess air.…”

Section: Interpretation Of Noble Gas Datamentioning

confidence: 99%

A paleotemperature record derived from dissolved noble gases in groundwater of the Aquia Aquifer (Maryland, USA)

Aeschbach–Hertig

Stute

Clark

et al. 2002

Geochimica et Cosmochimica Acta

111

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The solubility of nitrogen, oxygen and argon in water and seawater

Cited by 1,300 publications

References 12 publications

Presentation, calibration and validation of the low-order, DCESS Earth System Model (Version 1)

Presentation, calibration and validation of the low-order, DCESS Earth System Model (Version 1)

Seasonal variability of denitrification efficiency in northern salt marshes: An example from the St. Lawrence Estuary

A paleotemperature record derived from dissolved noble gases in groundwater of the Aquia Aquifer (Maryland, USA)

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