Abrupt and moderate climate changes in the mid-latitudes of Asia during the Holocene
A multiple parameter dating technique was used to establish a depth/age scale for a 171.3 m (145.87 m w.e.) surface to bedrock ice core (Bl2003) recovered from the cold recrystallization accumulation zone of the Western Belukha Plateau (4115 m a.s.l.) in the Siberian Altai Mountains. The ice-core re...
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Cambridge University Press
2016
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ftdoajarticles:oai:doaj.org/article:40d10afd40634c6f8f8a80ba68b56173 2023-05-15T16:38:48+02:00 Abrupt and moderate climate changes in the mid-latitudes of Asia during the Holocene ELENA M. AIZEN VLADIMIR B. AIZEN NOZOMU TAKEUCHI PAUL A. MAYEWSKI BJORN GRIGHOLM DANIEL R. JOSWIAK STANISLAV A. NIKITIN KOJI FUJITA MASAYOSHI NAKAWO ALEXANDER ZAPF MARGIT SCHWIKOWSKI 2016-06-01T00:00:00Z https://doi.org/10.1017/jog.2016.34 https://doaj.org/article/40d10afd40634c6f8f8a80ba68b56173 EN eng Cambridge University Press https://www.cambridge.org/core/product/identifier/S0022143016000344/type/journal_article https://doaj.org/toc/0022-1430 https://doaj.org/toc/1727-5652 doi:10.1017/jog.2016.34 0022-1430 1727-5652 https://doaj.org/article/40d10afd40634c6f8f8a80ba68b56173 Journal of Glaciology, Vol 62, Pp 411-439 (2016) ice-core records isotope chemistry paleoclimatic reconstruction Environmental sciences GE1-350 Meteorology. Climatology QC851-999 article 2016 ftdoajarticles https://doi.org/10.1017/jog.2016.34 2023-03-12T01:30:59Z A multiple parameter dating technique was used to establish a depth/age scale for a 171.3 m (145.87 m w.e.) surface to bedrock ice core (Bl2003) recovered from the cold recrystallization accumulation zone of the Western Belukha Plateau (4115 m a.s.l.) in the Siberian Altai Mountains. The ice-core record presented visible layering of annual accumulation and of δ 18O/δD stable isotopes, and a clear tritium reference horizon. A steady-state glacier flow model for layer thinning was calibrated and applied to establish a depth/age scale. Four radiocarbon (14C) measurements of particulate organic carbon contained in ice-core samples revealed dates for the bottom part of Bl2003 from 9075 ± 1221 cal a BC at 145.2 ± 0.1 m w.e. (0.665 m w.e. from the bedrock) to 790 ± 93 AD at 121.1 m w.e. depth. Sulfate peaks coincident with volcanic eruptions, the Tunguska meteorite event, and the 1842 dust storm were used to verify dating. Analysis of the Bl2003 ice core reveals that the modern Altai glaciers were formed during the Younger Dryas (YD) (~10 950 to ~7500 cal a BC), and that they survived the Holocene Climate Optimum (HCO) (~6500 to ~3600 cal a BC) and the Medieval Warm Period (MWP) (~640 to ~1100 AD). A decrease in air temperature at the beginning and an abrupt increase at the end of the YD were identified. Intensification of winds and dust loading related to Asian desert expansion also characterized the YD. During the YD major ion concentrations increased significantly, up to 50 times for Na+ (background), up to 45 times for Ca2+ and Mg2+, and up to 20 times for SO4 2− relative to the recent warm period from 1993 to 2003. A warm period lasted for about three centuries following the YD signaling onset of the HCO. A significant and prolonged decrease in air temperature from ~2000 to ~600 cal a BC was associated with a severe centennial drought (SCD). A sharp increase in air temperatures after the SCD was coincident with the MWP. After the MWP a cooling was followed gradually with further onset of the Little Ice Age. During ... Article in Journal/Newspaper ice core Journal of Glaciology Directory of Open Access Journals: DOAJ Articles Tunguska ENVELOPE(144.784,144.784,59.388,59.388) Journal of Glaciology 62 233 411 439 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
ice-core records isotope chemistry paleoclimatic reconstruction Environmental sciences GE1-350 Meteorology. Climatology QC851-999 |
spellingShingle |
ice-core records isotope chemistry paleoclimatic reconstruction Environmental sciences GE1-350 Meteorology. Climatology QC851-999 ELENA M. AIZEN VLADIMIR B. AIZEN NOZOMU TAKEUCHI PAUL A. MAYEWSKI BJORN GRIGHOLM DANIEL R. JOSWIAK STANISLAV A. NIKITIN KOJI FUJITA MASAYOSHI NAKAWO ALEXANDER ZAPF MARGIT SCHWIKOWSKI Abrupt and moderate climate changes in the mid-latitudes of Asia during the Holocene |
topic_facet |
ice-core records isotope chemistry paleoclimatic reconstruction Environmental sciences GE1-350 Meteorology. Climatology QC851-999 |
description |
A multiple parameter dating technique was used to establish a depth/age scale for a 171.3 m (145.87 m w.e.) surface to bedrock ice core (Bl2003) recovered from the cold recrystallization accumulation zone of the Western Belukha Plateau (4115 m a.s.l.) in the Siberian Altai Mountains. The ice-core record presented visible layering of annual accumulation and of δ 18O/δD stable isotopes, and a clear tritium reference horizon. A steady-state glacier flow model for layer thinning was calibrated and applied to establish a depth/age scale. Four radiocarbon (14C) measurements of particulate organic carbon contained in ice-core samples revealed dates for the bottom part of Bl2003 from 9075 ± 1221 cal a BC at 145.2 ± 0.1 m w.e. (0.665 m w.e. from the bedrock) to 790 ± 93 AD at 121.1 m w.e. depth. Sulfate peaks coincident with volcanic eruptions, the Tunguska meteorite event, and the 1842 dust storm were used to verify dating. Analysis of the Bl2003 ice core reveals that the modern Altai glaciers were formed during the Younger Dryas (YD) (~10 950 to ~7500 cal a BC), and that they survived the Holocene Climate Optimum (HCO) (~6500 to ~3600 cal a BC) and the Medieval Warm Period (MWP) (~640 to ~1100 AD). A decrease in air temperature at the beginning and an abrupt increase at the end of the YD were identified. Intensification of winds and dust loading related to Asian desert expansion also characterized the YD. During the YD major ion concentrations increased significantly, up to 50 times for Na+ (background), up to 45 times for Ca2+ and Mg2+, and up to 20 times for SO4 2− relative to the recent warm period from 1993 to 2003. A warm period lasted for about three centuries following the YD signaling onset of the HCO. A significant and prolonged decrease in air temperature from ~2000 to ~600 cal a BC was associated with a severe centennial drought (SCD). A sharp increase in air temperatures after the SCD was coincident with the MWP. After the MWP a cooling was followed gradually with further onset of the Little Ice Age. During ... |
format |
Article in Journal/Newspaper |
author |
ELENA M. AIZEN VLADIMIR B. AIZEN NOZOMU TAKEUCHI PAUL A. MAYEWSKI BJORN GRIGHOLM DANIEL R. JOSWIAK STANISLAV A. NIKITIN KOJI FUJITA MASAYOSHI NAKAWO ALEXANDER ZAPF MARGIT SCHWIKOWSKI |
author_facet |
ELENA M. AIZEN VLADIMIR B. AIZEN NOZOMU TAKEUCHI PAUL A. MAYEWSKI BJORN GRIGHOLM DANIEL R. JOSWIAK STANISLAV A. NIKITIN KOJI FUJITA MASAYOSHI NAKAWO ALEXANDER ZAPF MARGIT SCHWIKOWSKI |
author_sort |
ELENA M. AIZEN |
title |
Abrupt and moderate climate changes in the mid-latitudes of Asia during the Holocene |
title_short |
Abrupt and moderate climate changes in the mid-latitudes of Asia during the Holocene |
title_full |
Abrupt and moderate climate changes in the mid-latitudes of Asia during the Holocene |
title_fullStr |
Abrupt and moderate climate changes in the mid-latitudes of Asia during the Holocene |
title_full_unstemmed |
Abrupt and moderate climate changes in the mid-latitudes of Asia during the Holocene |
title_sort |
abrupt and moderate climate changes in the mid-latitudes of asia during the holocene |
publisher |
Cambridge University Press |
publishDate |
2016 |
url |
https://doi.org/10.1017/jog.2016.34 https://doaj.org/article/40d10afd40634c6f8f8a80ba68b56173 |
long_lat |
ENVELOPE(144.784,144.784,59.388,59.388) |
geographic |
Tunguska |
geographic_facet |
Tunguska |
genre |
ice core Journal of Glaciology |
genre_facet |
ice core Journal of Glaciology |
op_source |
Journal of Glaciology, Vol 62, Pp 411-439 (2016) |
op_relation |
https://www.cambridge.org/core/product/identifier/S0022143016000344/type/journal_article https://doaj.org/toc/0022-1430 https://doaj.org/toc/1727-5652 doi:10.1017/jog.2016.34 0022-1430 1727-5652 https://doaj.org/article/40d10afd40634c6f8f8a80ba68b56173 |
op_doi |
https://doi.org/10.1017/jog.2016.34 |
container_title |
Journal of Glaciology |
container_volume |
62 |
container_issue |
233 |
container_start_page |
411 |
op_container_end_page |
439 |
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1766029140290437120 |