Isotopic composition of atmospheric oxygen and nitrogen

Dole, Malcolm; Lane, G.A.; Rudd, DeForest P.; Zaukelies, D.A.

doi:10.1016/0016-7037(54)90016-2

Cited by 150 publications

(62 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The general air circulation theory (Kida, 1983) also estimated the age of the mid-latitudinal stratospheric air to be about 2 years or more. Although fossil fuel carbon has a 613C value of -27%, (Tans, 1981) close to that of biospheric CO,, the secular C0,-613C slope is not similar to that of the seasonal variation but significantly suppressed to be -0.02 --0.03%, ppmv-' (Keeling et al, 1979;Francey, 1985), due to the interaction between the atmosphere and the ocean (Keeling et al, 1979(Keeling et al, , 1980. The regression analysis was also applied to the stratospheric CO2-6I3C data (a solid line in Fig.…”

Section: C02 and 6i3c Resultsmentioning

confidence: 99%

Carbon and oxygen isotopic ratios of carbon dioxide of a stratospheric profile over Japan

Gamo

Tsutsumi

Sakai

et al. 1989

Tellus B: Chemical and Physical Meteorology

View full text Add to dashboard Cite

Four stratospheric air samples from 19 to 25 km altitudes over Japan were collected by using a balloon-borne cryogenic sampling system to measure the vertical profiles of carbon and oxygen stable isotopic ratios of the lower stratospheric C0 2 .The .5 13 C value of the stratospheric C0 2 increased with increasing altitude, while the C0 2 mixing ratios decreased, in accordance with anthropogenic input of the isotopically light, fuel C0 2 into the atmosphere. However, the relationship between .5 13 C and C0 2 mixing ratio (-0.07'.)' 00 ppmv-1 ) was somehow similar to that for the seasonal variation in the troposphere rather than that for the secular variation so far observed in the troposphere (-0.G2 --0.03% 0 ppmv-1 ).The .5 18 0 of the stratospheric C0 2 was found to be about 2%o greater than that of the tropospheric C0 2 at an altitude of 19 km and to increase further with increasing altitude. Two possibilities for explaining this phenomenon are presented and discussed. One possibility is that the tropical C0 2 with high .5 18 0 might upwell and advect horizontally to the midlatitudinal stratosphere, although the .5 18 0 enhancement by this process is insufficient to raise the .5 18 0 value up to the observed level. The other is that the 18 0 might be enriched by an in-situ oxygen isotope exchange between C0 2 and Oz, which is possibly accelerated through photochemical dissociations of 0 2 and C0 2 • A relationship between .5 18 0 of C0 2 and 18 0 enrichment of ozone in the stratosphere is also suggested.

show abstract

Section: C02 and 6i3c Resultsmentioning

confidence: 99%

Carbon and oxygen isotopic ratios of carbon dioxide of a stratospheric profile over Japan

Gamo

Tsutsumi

Sakai

et al. 1989

Tellus B: Chemical and Physical Meteorology

View full text Add to dashboard Cite

show abstract

“…The body's main oxygen sources are atmospheric O 2 , liquid water, and oxygen bound in food. Since atmospheric O 2 18 O values are relatively constant (Dole et al, 1954;Kroopnick & Craig, 1972) enamel oxygen isotope composition is controlled primarily by the composition of ingested water and, to a lesser extent, the composition of macronutrients in food. The isotopic composition of meteoric water (which is available to drink) is sensitive to climatic factors such as mean annual temperature and amount of local precipitation (Dansgaard, 1964).…”

Section: Introductionmentioning

confidence: 99%

Oxygen Isotopes in Enamel Carbonate and their Ecological Significance

Sponheimer

Lee‐Thorp

1999

Journal of Archaeological Science

267

142

View full text Add to dashboard Cite

“…We used air as a primary standard (Dole et al 1954) with a known d 18 O value of 23.5% (6 0.14% standard deviation, n 5 128). The airequilibrated artificial seawater that was used as a procedural standard gave the expected d 18 O value of 24.2% (6 0.17% standard deviation for d 18 O, n 5 113), as well as accurate dissolved oxygen and nitrogen concentrations, with which the saturation concentrations were calculated according to Weiss (1970) using known temperature and salinity.…”

Section: Methodsmentioning

confidence: 99%

Effects of biological and physical factors on seasonal oxygen dynamics in a stratified, eutrophic coastal ecosystem

Rivera

Wissel

Rabalais

et al. 2009

Limnology & Oceanography

View full text Add to dashboard Cite

Using a dual-budget approach based on oxygen concentrations and stable isotopes, we examined primary production, respiration, and production to respiration ratios (P : R) across the Louisiana continental shelf to determine the relative roles of biological and physical factors in controlling seasonal oxygen dynamics. Regression models for d 18 O and P : R indicated that the concentration of algal biomass explained most of the variability of the seasonal oxygen dynamics in surface waters. Physical factors, such as salinity, temperature, water-column stability, and station depth were only of minor importance. Seasonal oxygen dynamics were more pronounced in bottom waters than in surface waters as hypoxia was common in bottom waters during summer months (MayOctober). During cooler winter months (November-April), oxygen concentrations throughout the water column were close to equilibrium with the atmosphere. The relative importance of benthic respiration to water-column respiration in bottom waters was more pronounced during summer months when the water column was stratified.

show abstract

Isotopic composition of atmospheric oxygen and nitrogen

Cited by 150 publications

References 11 publications

Carbon and oxygen isotopic ratios of carbon dioxide of a stratospheric profile over Japan

Carbon and oxygen isotopic ratios of carbon dioxide of a stratospheric profile over Japan

Oxygen Isotopes in Enamel Carbonate and their Ecological Significance

Effects of biological and physical factors on seasonal oxygen dynamics in a stratified, eutrophic coastal ecosystem

Contact Info

Product

Resources

About