XRF, XRD, grainsize and total organic carbon in core Konar Sandal peat bog, SE Iran
Rapid North Atlantic cooling events during the last deglaciation caused atmospheric reorganizations on global and regional scales. Their impact on Asian climate has been investigated for monsoonal domains, but remains largely unknown in westerly wind-dominated semi-arid regions. Here we generate a d...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.918548 2023-05-15T17:28:32+02:00 XRF, XRD, grainsize and total organic carbon in core Konar Sandal peat bog, SE Iran Safaierad, Reza Mohtadi, Mahyar Zolitschka, Bernd Yokoyama, Yusuke Vogt, Christoph Schefuß, Enno LATITUDE: 28.533889 * LONGITUDE: 57.781389 2020-06-09 application/zip, 4 datasets https://doi.pangaea.de/10.1594/PANGAEA.918548 https://doi.org/10.1594/PANGAEA.918548 en eng PANGAEA Safaierad, Reza; Mohtadi, Mahyar; Zolitschka, Bernd; Yokoyama, Yusuke; Vogt, Christoph; Schefuß, Enno (2020): Elevated dust depositions in West Asia linked to ocean–atmosphere shifts during North Atlantic cold events. Proceedings of the National Academy of Sciences, 202004071, https://doi.org/10.1073/pnas.2004071117 https://doi.pangaea.de/10.1594/PANGAEA.918548 https://doi.org/10.1594/PANGAEA.918548 CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Atmospheric dust North Atlantic cooling Northern Hemisphere Westerlies sea-ice West Asia Dataset 2020 ftpangaea https://doi.org/10.1594/PANGAEA.918548 https://doi.org/10.1073/pnas.2004071117 2023-01-20T07:34:35Z Rapid North Atlantic cooling events during the last deglaciation caused atmospheric reorganizations on global and regional scales. Their impact on Asian climate has been investigated for monsoonal domains, but remains largely unknown in westerly wind-dominated semi-arid regions. Here we generate a dust record from southeastern Iran spanning the period 19-7 cal. ka BP. We find a direct link between frequent occurrences of dust plumes originating from the Arabian Peninsula and North Africa, and rapid southward shifts of the westerlies associated with changes of the winter stationary waves during Heinrich Stadial 1, the Younger Dryas, the Preboreal Oscillation and the 8.2 ka event. Dust input rises and falls abruptly at the transitions into and out of these cooling events, which we attribute to changes in the ocean circulation strength and modulated by the North Atlantic winter sea-ice cover. Our findings reveal that waxing and waning of North American ice sheets have a stronger influence than those of European ice sheets on the winter climate over West Asia. Dataset North Atlantic Sea ice PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(57.781389,57.781389,28.533889,28.533889) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Atmospheric dust North Atlantic cooling Northern Hemisphere Westerlies sea-ice West Asia |
spellingShingle |
Atmospheric dust North Atlantic cooling Northern Hemisphere Westerlies sea-ice West Asia Safaierad, Reza Mohtadi, Mahyar Zolitschka, Bernd Yokoyama, Yusuke Vogt, Christoph Schefuß, Enno XRF, XRD, grainsize and total organic carbon in core Konar Sandal peat bog, SE Iran |
topic_facet |
Atmospheric dust North Atlantic cooling Northern Hemisphere Westerlies sea-ice West Asia |
description |
Rapid North Atlantic cooling events during the last deglaciation caused atmospheric reorganizations on global and regional scales. Their impact on Asian climate has been investigated for monsoonal domains, but remains largely unknown in westerly wind-dominated semi-arid regions. Here we generate a dust record from southeastern Iran spanning the period 19-7 cal. ka BP. We find a direct link between frequent occurrences of dust plumes originating from the Arabian Peninsula and North Africa, and rapid southward shifts of the westerlies associated with changes of the winter stationary waves during Heinrich Stadial 1, the Younger Dryas, the Preboreal Oscillation and the 8.2 ka event. Dust input rises and falls abruptly at the transitions into and out of these cooling events, which we attribute to changes in the ocean circulation strength and modulated by the North Atlantic winter sea-ice cover. Our findings reveal that waxing and waning of North American ice sheets have a stronger influence than those of European ice sheets on the winter climate over West Asia. |
format |
Dataset |
author |
Safaierad, Reza Mohtadi, Mahyar Zolitschka, Bernd Yokoyama, Yusuke Vogt, Christoph Schefuß, Enno |
author_facet |
Safaierad, Reza Mohtadi, Mahyar Zolitschka, Bernd Yokoyama, Yusuke Vogt, Christoph Schefuß, Enno |
author_sort |
Safaierad, Reza |
title |
XRF, XRD, grainsize and total organic carbon in core Konar Sandal peat bog, SE Iran |
title_short |
XRF, XRD, grainsize and total organic carbon in core Konar Sandal peat bog, SE Iran |
title_full |
XRF, XRD, grainsize and total organic carbon in core Konar Sandal peat bog, SE Iran |
title_fullStr |
XRF, XRD, grainsize and total organic carbon in core Konar Sandal peat bog, SE Iran |
title_full_unstemmed |
XRF, XRD, grainsize and total organic carbon in core Konar Sandal peat bog, SE Iran |
title_sort |
xrf, xrd, grainsize and total organic carbon in core konar sandal peat bog, se iran |
publisher |
PANGAEA |
publishDate |
2020 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.918548 https://doi.org/10.1594/PANGAEA.918548 |
op_coverage |
LATITUDE: 28.533889 * LONGITUDE: 57.781389 |
long_lat |
ENVELOPE(57.781389,57.781389,28.533889,28.533889) |
genre |
North Atlantic Sea ice |
genre_facet |
North Atlantic Sea ice |
op_relation |
Safaierad, Reza; Mohtadi, Mahyar; Zolitschka, Bernd; Yokoyama, Yusuke; Vogt, Christoph; Schefuß, Enno (2020): Elevated dust depositions in West Asia linked to ocean–atmosphere shifts during North Atlantic cold events. Proceedings of the National Academy of Sciences, 202004071, https://doi.org/10.1073/pnas.2004071117 https://doi.pangaea.de/10.1594/PANGAEA.918548 https://doi.org/10.1594/PANGAEA.918548 |
op_rights |
CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.918548 https://doi.org/10.1073/pnas.2004071117 |
_version_ |
1766121273876807680 |