Vostok (Antarctica) climate record time-scale deduced from the analysis of a borehole-temperature profile
Several sets of temperature measurements were carried out in 1972-88 in the Vostok boreholes. They have provided the ice-sheet temperature profile down to a depth of 2000m. The accuracy of the profile is sufficient to analyse perturbations induced by the surface-temperature variations over the last...
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ftneicon:oai:rour.neicon.ru:rour/130769 2023-05-15T13:29:11+02:00 Vostok (Antarctica) climate record time-scale deduced from the analysis of a borehole-temperature profile Salamatin A. Lipenkov V. Blinov K. 1994 https://openrepository.ru/article?id=130769 unknown Annals of Glaciology 207 20 0260-3055 https://openrepository.ru/article?id=130769 SCOPUS02603055-1994-20-SID0028583621 1994 ftneicon 2020-07-21T11:47:33Z Several sets of temperature measurements were carried out in 1972-88 in the Vostok boreholes. They have provided the ice-sheet temperature profile down to a depth of 2000m. The accuracy of the profile is sufficient to analyse perturbations induced by the surface-temperature variations over the last climatic cycle. The mathematical model developed for the ice-temperature computation is applied to solve an inverse problem. The amplitudes and phase lags of the main harmonic components in the surface-temperature variations are reconstructed on the basis of fitting the calculated ice-temperature profile to the experimental one with the assumption that Milankovich's cycles (100, 41, 23 and 19kyear) are dominant in the climate oscillations. The resultant time-scale for the Vostok record appears to be in good agreement with the dating of climate events recorded in deep-sea sediments. -from Authors Other/Unknown Material Annals of Glaciology Antarc* Antarctica Ice Sheet NORA (National aggregator of open repositories of Russian universities) |
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NORA (National aggregator of open repositories of Russian universities) |
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Several sets of temperature measurements were carried out in 1972-88 in the Vostok boreholes. They have provided the ice-sheet temperature profile down to a depth of 2000m. The accuracy of the profile is sufficient to analyse perturbations induced by the surface-temperature variations over the last climatic cycle. The mathematical model developed for the ice-temperature computation is applied to solve an inverse problem. The amplitudes and phase lags of the main harmonic components in the surface-temperature variations are reconstructed on the basis of fitting the calculated ice-temperature profile to the experimental one with the assumption that Milankovich's cycles (100, 41, 23 and 19kyear) are dominant in the climate oscillations. The resultant time-scale for the Vostok record appears to be in good agreement with the dating of climate events recorded in deep-sea sediments. -from Authors |
author |
Salamatin A. Lipenkov V. Blinov K. |
spellingShingle |
Salamatin A. Lipenkov V. Blinov K. Vostok (Antarctica) climate record time-scale deduced from the analysis of a borehole-temperature profile |
author_facet |
Salamatin A. Lipenkov V. Blinov K. |
author_sort |
Salamatin A. |
title |
Vostok (Antarctica) climate record time-scale deduced from the analysis of a borehole-temperature profile |
title_short |
Vostok (Antarctica) climate record time-scale deduced from the analysis of a borehole-temperature profile |
title_full |
Vostok (Antarctica) climate record time-scale deduced from the analysis of a borehole-temperature profile |
title_fullStr |
Vostok (Antarctica) climate record time-scale deduced from the analysis of a borehole-temperature profile |
title_full_unstemmed |
Vostok (Antarctica) climate record time-scale deduced from the analysis of a borehole-temperature profile |
title_sort |
vostok (antarctica) climate record time-scale deduced from the analysis of a borehole-temperature profile |
publishDate |
1994 |
url |
https://openrepository.ru/article?id=130769 |
genre |
Annals of Glaciology Antarc* Antarctica Ice Sheet |
genre_facet |
Annals of Glaciology Antarc* Antarctica Ice Sheet |
op_source |
SCOPUS02603055-1994-20-SID0028583621 |
op_relation |
Annals of Glaciology 207 20 0260-3055 https://openrepository.ru/article?id=130769 |
_version_ |
1765999133065216000 |