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Record #204492:
Математическое моделирование течения льда в северо-западной части Гренландии и интерпретация данных глубокого бурения на станции NEEM
Title: | Математическое моделирование течения льда в северо-западной части Гренландии и интерпретация данных глубокого бурения на станции NEEM |
Title, transliterated: | Matematicheskoe modelirovanie techenii︠a︡ lʹda v severo-zapadnoĭ chasti Grenlandii i interpretat︠s︡ii︠a︡ dannykh glubokogo burenii︠a︡ na stant︠s︡ii NEEM / O.O. Rybak, J.J. Fürst, P. Huĭbrecht︠s︡. |
Translated title: | Mathematical modelling of ice flow in the north-western part of Greenland and interpretation of deep drilling data at the NEEM camp. |
Author(s): | Rybak, O. O. Fürst, J. J. Huĭbrecht︠s︡, P. |
Date: | 2013. |
Language: | Russian. |
In: | Led i Sneg. (2013.), Vol. 4(121) (2013) |
Abstract: | Presents numerical modelling to support interpretation of NEEM ice core, based on 400-km-square domain at 2.5 km resolution. Modelled present-day surface velocity field agrees well with satellite and GPS measurements. Runs nested ice-sheet model over last two glacial cycles to reconstruct relevant flow history. Uses Lagrangian backtracking to determine particle trajectories of ice drilled at NEEM site, ice chronology and non-climatic biases. Heavily disturbed ice from 2206 m to 2435 m depth and high isotope values indicate presence of ice from previous warm interglacial. Model correctly locates δ¹⁸O maximum of warmest Eemian ice at 2400 m, suggesting that measured contrast between present and Eemian be increased by about 1.5 per mil. Most of non-climatic bias results from upstream advection over ~175 km. |
Notes: | Led i Sneg. Vol. 4(121) :16-25 (2013). English abstract and figure captions. |
Keywords: | 551.32 -- Glaciology. 622.233 -- Drills and drilling, ice and snow sampling. 551.58 -- Climatology. 551.583.3 -- Climatic changes, Quaternary. 551.324.22 -- Glaciers: Greenland Ice Sheet. 519.673 -- Modelling. 551.324.54 -- Land ice, flow of particular glaciers. 551.337 -- Chronology of the Pleistocene and recent periods. 546.21 -- Oxygen. 54.027 -- Isotope analysis. 528.37 -- Surveying, levelling. 551.79 -- Quaternary. E5 -- Glaciology: land ice. (*38) -- Greenland. |
SPRI record no.: | 204492 |
LDR 03128naa#a2200000#a#4500 001 SPRI-204492 005 20240328122822.0 007 ta 008 240328s2013####xx#ab#|##|###|0||#0|rus#d 035 ## ‡aSPRI-204492 040 ## ‡aUkCU-P‡beng‡eaacr 041 0# ‡arus 100 1# ‡6880-01‡aRybak, O. O. 242 10 ‡aMathematical modelling of ice flow in the north-western part of Greenland and interpretation of deep drilling data at the NEEM camp.‡yeng 245 10 ‡6880-02‡aMatematicheskoe modelirovanie techenii︠a︡ lʹda v severo-zapadnoĭ chasti Grenlandii i interpretat︠s︡ii︠a︡ dannykh glubokogo burenii︠a︡ na stant︠s︡ii NEEM /‡cO.O. Rybak, J.J. Fürst, P. Huĭbrecht︠s︡. 260 ## ‡a[S.l.] :‡b[s.n.],‡c2013. 300 ## ‡ap. 16-25 :‡bill., diags., maps. 500 ## ‡aLed i Sneg. Vol. 4(121) :16-25 (2013). 500 ## ‡aEnglish abstract and figure captions. 520 3# ‡aPresents numerical modelling to support interpretation of NEEM ice core, based on 400-km-square domain at 2.5 km resolution. Modelled present-day surface velocity field agrees well with satellite and GPS measurements. Runs nested ice-sheet model over last two glacial cycles to reconstruct relevant flow history. Uses Lagrangian backtracking to determine particle trajectories of ice drilled at NEEM site, ice chronology and non-climatic biases. Heavily disturbed ice from 2206 m to 2435 m depth and high isotope values indicate presence of ice from previous warm interglacial. Model correctly locates δ¹⁸O maximum of warmest Eemian ice at 2400 m, suggesting that measured contrast between present and Eemian be increased by about 1.5 per mil. Most of non-climatic bias results from upstream advection over ~175 km. 546 ## ‡aIn Russian. 546 ## ‡aRussian transliteration entered into original records using BGN/PCGN 1947 romanisation of Russian; Cyrillic text in MARC 880 field(s) reverse transliterated from this by automated process; BGN/PCGN 1947 text then upgraded to Library of Congress romanisation. 650 07 ‡a551.32 -- Glaciology.‡2udc 650 07 ‡a622.233 -- Drills and drilling, ice and snow sampling.‡2udc 650 07 ‡a551.58 -- Climatology.‡2udc 650 07 ‡a551.583.3 -- Climatic changes, Quaternary.‡2udc 650 07 ‡a551.324.22 -- Glaciers: Greenland Ice Sheet.‡2udc 650 07 ‡a519.673 -- Modelling.‡2udc 650 07 ‡a551.324.54 -- Land ice, flow of particular glaciers.‡2udc 650 07 ‡a551.337 -- Chronology of the Pleistocene and recent periods.‡2udc 650 07 ‡a546.21 -- Oxygen.‡2udc 650 07 ‡a54.027 -- Isotope analysis.‡2udc 650 07 ‡a528.37 -- Surveying, levelling.‡2udc 650 07 ‡a551.79 -- Quaternary.‡2udc 650 07 ‡aE5 -- Glaciology: land ice.‡2local 651 #7 ‡a(*38) -- Greenland.‡2udc 700 1# ‡6880-03‡aFürst, J. J. 700 1# ‡6880-04‡aHuĭbrecht︠s︡, P. 773 0# ‡6880-05‡7nnas ‡tLed i Sneg. ‡gVol. 4(121) (2013) ‡wSPRI-191013 880 1# ‡6100-01/(N‡aРыбак, О. О. 880 10 ‡6245-02/(N‡aМатематическое моделирование течения льда в северо-западной части Гренландии и интерпретация данных глубокого бурения на станции NEEM /‡cО.О. Рыбак, J.J. Фüрст, П. Hуйбречц. 880 1# ‡6700-03/(N‡aФüрст, J. J. 880 1# ‡6700-04/(N‡aHуйбречц, П. 880 0# ‡6773-05/(N‡7nnas ‡tЛед и Снег. ‡gVol. 4(121) (2013) ‡wSPRI-191013 916 ## ‡a2013/06/30 -- RF 917 ## ‡aUnenhanced record from Muscat, imported 2019 948 3# ‡a20240328 ‡bRF