A 30,000-yr isotope climatic record from Antarctic ice

Lorius, C.; Merlivat, Liliane; Jouzel, Jean; Pourchet, M.

doi:10.1038/280644a0

Cited by 356 publications

(163 citation statements)

References 18 publications

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“…Recently, Oeschger et al (1984) have found, by comparing the CO2 change and *18O data in detail from the Dye 3 Greenland core, that the sudden air temperature warmings suggested by the rise in * 18O are accompanied by sharp rises in CO 2 content of air trapped in the ice. Lorius et al (1985) have obtained the similar results as Oeschger et al (1984) from the Antarctic ice records. Pisias and Shackleton (1984) also pointed out an importance of a relationship between CO2 content and atmospheric temperatures from analyses of climatic records.…”

Section: Introductionsupporting

confidence: 79%

“…This variation for CO2 content is so large that we cannot disregard its thermal effect on the earth's climate. Eventually, Lorius et al (1985) found a CO2 -atmospheric temperature connection from records in Antarctic ice all over the past 150kyr. Oeschger et al (1984), and Pisias and Shackleton (1984) have also pointed out an existence of the similar connection.…”

Section: Three Assumptionsmentioning

confidence: 99%

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One Hypothesis in Glaciation Cycles of the Earth : (I) Reproduction of the Observed δ<sup>18</sup>O-Derived Data Using Three Assumptions

Moriyama¹

1986

Journal of the Meteorological Society of Japan

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If three assumptions shown in the text are adopted, we can replicate the *18O-derived observations of ice mass evolution. Our results suggest that the large free oscillations with 100 kyr period may be governing the most predominant oscillations in the actual climate, and that the effect of variation in CO2 which would be induced by the link between biological action and the Milankovitch insolation variation would be superposed non-linearly on the free oscillation system with phase lock of the major variation, and play an important role in an apprearance of the real *18O data.

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Section: Introductionsupporting

confidence: 79%

Section: Three Assumptionsmentioning

confidence: 99%

One Hypothesis in Glaciation Cycles of the Earth : (I) Reproduction of the Observed δ<sup>18</sup>O-Derived Data Using Three Assumptions

Moriyama¹

1986

Journal of the Meteorological Society of Japan

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“…1), several relatively low-resolution (centennial) climate records covering most of the late glacial period have been published. Deep ice cores have been recovered at Byrd [21], Dome C [22] (50 km from the EPICA Dome C site), Vostok [23], Dome B [24] and Taylor Dome [25]. Higher resolution was achieved in the recently published Dome F record which has decadal resolution over this period [26].…”

Section: Introductionmentioning

confidence: 89%

A late-glacial high-resolution site and source temperature record derived from the EPICA Dome C isotope records (East Antarctica)

Stenni¹,

Jouzel²,

Masson‐Delmotte³

et al. 2004

Earth and Planetary Science Letters

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The timing and synchronisation of Greenland and Antarctic climate events that occurred during the last glacial period are still under debate, as is the magnitude of temperature change associated with these events. Here we present detailed records of local and moisture-source temperature changes spanning the period 27^45 kyr BP from water stable isotope measurements (ND and N 18 O) in the recently drilled EPICA Dome C ice core, East Antarctic plateau. Using a simple isotopic model, site (vT site ) and source (vT source ) temperatures are extracted from the initial 50-yr highresolution isotopic records, taking into account the changes in seawater isotopic composition. The deuterium isotope variability is very similar to the less precise ND record from the Vostok ice core, and the site temperature inversion leads to a temperature profile similar to the classical palaeothermometry method, due to compensations between source and ocean water corrections. The reconstructed vT site and vT source profiles show different trends during the glacial: the former shows a decreasing trend from the warm A1 event (38 kyr BP) toward the Last Glacial Maximum, while the latter shows increasing values from 41 to 28 kyr BP. The low-frequency deuterium excess fluctuations are strongly influenced by obliquity fluctuations, controlling the low-to high-latitude temperature gradients, and show a remarkable similarity with a high-resolution southeast Atlantic sea surface temperature record. A comparison of the temperature profiles (site and source) and temperature gradient (vT source -vT site ) with the non-sea-salt calcium and sodium records suggests a secondary influence of atmospheric transport changes on aerosol variations. ß

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“…), the climate in North Australia was much drier than today (Kershaw, 1974;Bowler et al, 1976;Webster and Streten, 1978;Coventry et al, 1980). The winds, favourable to the transport of the salts, and to the concentration of salts in the soils by evaporation, were much stronger than today (Lorius et al, 1979;Petit et al, 1981).…”

Section: The Rain Inputsmentioning

confidence: 99%

The origin of gypsum in Vertisols in New Caledonia determined by isotopic characteristics of sulphur

Podwojewski¹,

Arnold

1994

Geoderma

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Gypsum crystals occur in Vertisols on the west coast of New Caledonia. These soils are derived from the weathering of basic rocks that contain no gypsum. The sulphur isotopic ratio 34S/32S was used as tracer to identify the origin of the gypsum. A total of 26 measurements of 1 3~~s were made on gypsum crystals from the Vertisols and compared to those of continental sulphates and to marine gypsum in tidal flats. The S34S value of the crystals located in New Caledonian Vertisols decreases with increasing distance from the coast. This suggests that the gypsum in the Vertisols comes from two sources: an oceanic source where the major part of the sulphur is introduced by atmospheric precipitation, and a continental source where sulphides disseminated in various subsurface deposits are oxidized. Gypsum from atmospheric precipitation penetrates the Vertisols through vertical cracks that probably formed in dry seasons during the last glacial period.

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A 30,000-yr isotope climatic record from Antarctic ice

Cited by 356 publications

References 18 publications

One Hypothesis in Glaciation Cycles of the Earth : (I) Reproduction of the Observed δ<sup>18</sup>O-Derived Data Using Three Assumptions

One Hypothesis in Glaciation Cycles of the Earth : (I) Reproduction of the Observed δ<sup>18</sup>O-Derived Data Using Three Assumptions

A late-glacial high-resolution site and source temperature record derived from the EPICA Dome C isotope records (East Antarctica)

The origin of gypsum in Vertisols in New Caledonia determined by isotopic characteristics of sulphur

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A 30,000-yr isotope climatic record from Antarctic ice

Cited by 356 publications

References 18 publications

One Hypothesis in Glaciation Cycles of the Earth : (I) Reproduction of the Observed &delta;<sup>18</sup>O-Derived Data Using Three Assumptions

One Hypothesis in Glaciation Cycles of the Earth : (I) Reproduction of the Observed &delta;<sup>18</sup>O-Derived Data Using Three Assumptions

A late-glacial high-resolution site and source temperature record derived from the EPICA Dome C isotope records (East Antarctica)

The origin of gypsum in Vertisols in New Caledonia determined by isotopic characteristics of sulphur

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One Hypothesis in Glaciation Cycles of the Earth : (I) Reproduction of the Observed δ<sup>18</sup>O-Derived Data Using Three Assumptions

One Hypothesis in Glaciation Cycles of the Earth : (I) Reproduction of the Observed δ<sup>18</sup>O-Derived Data Using Three Assumptions