Speleothem records of glacial/interglacial climate from Iran forewarn of future Water Availability in the interior of the Middle East

Sevag Mehterian, Ali Pourmand, Arash Sharifi, Hamid A.K. Lahijani, Majid Naderi, Peter K Swart

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

This study presents the first absolute-dated record of climate variability constructed by oxygen isotopes (δ18Oc) from stalagmites in the interior of West Asia (Middle East) that encompass the Last Interglacial and early glacial periods (73,000–127,000 Before Present, BP) and early Holocene (6500–7500 BP). Variations in δ18Oc of two stalagmites from Qal'e Kord (QK) cave in central NW Iran show significant agreement and follow the solar insolation curve at 30°N closely, indicating the fidelity of these records as climate signals. The stalagmites capture millennial-scale Dansgaard/Oeschger stadial and interstadial events (19–25) observed in the North Greenland Ice Core Project (NGRIP). These observations point to the presence of a strong atmospheric teleconnection between the north Atlantic climate and the Middle East region. Variations in δ18Oc from QK cave also agree with the main features of Marine Isotope Stage 5 (MIS5), climate reconstructions from Soreq Cave, Israel, and Sanbao Cave in East Asia. This suggests propagation of a pan-Eurasian climate signal via interplay between changes in solar insolation, strength and position of the mid-latitude Westerly Jet, and strength of the Asian Monsoon. More negative δ18Oc from QK stalagmites are representative of wetter conditions when JJA insolation is at maximum, supporting a hypothesis that winter precipitation should increase in the Mediterranean storm tracks over the interior of West Asia when seasonality is at maximum. This record of water availability from central NW Iran across past glacial cycles suggests precipitation increased with higher solar insolation, an orbital configuration that will not return for another 10,000 years.

Original languageEnglish (US)
Pages (from-to)187-198
Number of pages12
JournalQuaternary Science Reviews
Volume164
DOIs
StatePublished - May 15 2017

Fingerprint

stalagmite
speleothem
Middle East
insolation
water availability
interglacial
Iran
cave
caves
climate
solar radiation
climate signal
water
West Asia
isotopes
GRIP
marine isotope stage
storm track
Last Interglacial
interstadial

ASJC Scopus subject areas

  • Global and Planetary Change
  • Archaeology
  • Ecology, Evolution, Behavior and Systematics
  • Archaeology
  • Geology

Cite this

Speleothem records of glacial/interglacial climate from Iran forewarn of future Water Availability in the interior of the Middle East. / Mehterian, Sevag; Pourmand, Ali; Sharifi, Arash; Lahijani, Hamid A.K.; Naderi, Majid; Swart, Peter K.

In: Quaternary Science Reviews, Vol. 164, 15.05.2017, p. 187-198.

Research output: Contribution to journalArticle

@article{7c548b58ea814cbabac7a799162fcf74,
title = "Speleothem records of glacial/interglacial climate from Iran forewarn of future Water Availability in the interior of the Middle East",
abstract = "This study presents the first absolute-dated record of climate variability constructed by oxygen isotopes (δ18Oc) from stalagmites in the interior of West Asia (Middle East) that encompass the Last Interglacial and early glacial periods (73,000–127,000 Before Present, BP) and early Holocene (6500–7500 BP). Variations in δ18Oc of two stalagmites from Qal'e Kord (QK) cave in central NW Iran show significant agreement and follow the solar insolation curve at 30°N closely, indicating the fidelity of these records as climate signals. The stalagmites capture millennial-scale Dansgaard/Oeschger stadial and interstadial events (19–25) observed in the North Greenland Ice Core Project (NGRIP). These observations point to the presence of a strong atmospheric teleconnection between the north Atlantic climate and the Middle East region. Variations in δ18Oc from QK cave also agree with the main features of Marine Isotope Stage 5 (MIS5), climate reconstructions from Soreq Cave, Israel, and Sanbao Cave in East Asia. This suggests propagation of a pan-Eurasian climate signal via interplay between changes in solar insolation, strength and position of the mid-latitude Westerly Jet, and strength of the Asian Monsoon. More negative δ18Oc from QK stalagmites are representative of wetter conditions when JJA insolation is at maximum, supporting a hypothesis that winter precipitation should increase in the Mediterranean storm tracks over the interior of West Asia when seasonality is at maximum. This record of water availability from central NW Iran across past glacial cycles suggests precipitation increased with higher solar insolation, an orbital configuration that will not return for another 10,000 years.",
author = "Sevag Mehterian and Ali Pourmand and Arash Sharifi and Lahijani, {Hamid A.K.} and Majid Naderi and Swart, {Peter K}",
year = "2017",
month = "5",
day = "15",
doi = "10.1016/j.quascirev.2017.03.028",
language = "English (US)",
volume = "164",
pages = "187--198",
journal = "Quaternary Science Reviews",
issn = "0277-3791",
publisher = "Elsevier Limited",

}

TY - JOUR

T1 - Speleothem records of glacial/interglacial climate from Iran forewarn of future Water Availability in the interior of the Middle East

AU - Mehterian, Sevag

AU - Pourmand, Ali

AU - Sharifi, Arash

AU - Lahijani, Hamid A.K.

AU - Naderi, Majid

AU - Swart, Peter K

PY - 2017/5/15

Y1 - 2017/5/15

N2 - This study presents the first absolute-dated record of climate variability constructed by oxygen isotopes (δ18Oc) from stalagmites in the interior of West Asia (Middle East) that encompass the Last Interglacial and early glacial periods (73,000–127,000 Before Present, BP) and early Holocene (6500–7500 BP). Variations in δ18Oc of two stalagmites from Qal'e Kord (QK) cave in central NW Iran show significant agreement and follow the solar insolation curve at 30°N closely, indicating the fidelity of these records as climate signals. The stalagmites capture millennial-scale Dansgaard/Oeschger stadial and interstadial events (19–25) observed in the North Greenland Ice Core Project (NGRIP). These observations point to the presence of a strong atmospheric teleconnection between the north Atlantic climate and the Middle East region. Variations in δ18Oc from QK cave also agree with the main features of Marine Isotope Stage 5 (MIS5), climate reconstructions from Soreq Cave, Israel, and Sanbao Cave in East Asia. This suggests propagation of a pan-Eurasian climate signal via interplay between changes in solar insolation, strength and position of the mid-latitude Westerly Jet, and strength of the Asian Monsoon. More negative δ18Oc from QK stalagmites are representative of wetter conditions when JJA insolation is at maximum, supporting a hypothesis that winter precipitation should increase in the Mediterranean storm tracks over the interior of West Asia when seasonality is at maximum. This record of water availability from central NW Iran across past glacial cycles suggests precipitation increased with higher solar insolation, an orbital configuration that will not return for another 10,000 years.

AB - This study presents the first absolute-dated record of climate variability constructed by oxygen isotopes (δ18Oc) from stalagmites in the interior of West Asia (Middle East) that encompass the Last Interglacial and early glacial periods (73,000–127,000 Before Present, BP) and early Holocene (6500–7500 BP). Variations in δ18Oc of two stalagmites from Qal'e Kord (QK) cave in central NW Iran show significant agreement and follow the solar insolation curve at 30°N closely, indicating the fidelity of these records as climate signals. The stalagmites capture millennial-scale Dansgaard/Oeschger stadial and interstadial events (19–25) observed in the North Greenland Ice Core Project (NGRIP). These observations point to the presence of a strong atmospheric teleconnection between the north Atlantic climate and the Middle East region. Variations in δ18Oc from QK cave also agree with the main features of Marine Isotope Stage 5 (MIS5), climate reconstructions from Soreq Cave, Israel, and Sanbao Cave in East Asia. This suggests propagation of a pan-Eurasian climate signal via interplay between changes in solar insolation, strength and position of the mid-latitude Westerly Jet, and strength of the Asian Monsoon. More negative δ18Oc from QK stalagmites are representative of wetter conditions when JJA insolation is at maximum, supporting a hypothesis that winter precipitation should increase in the Mediterranean storm tracks over the interior of West Asia when seasonality is at maximum. This record of water availability from central NW Iran across past glacial cycles suggests precipitation increased with higher solar insolation, an orbital configuration that will not return for another 10,000 years.

UR - http://www.scopus.com/inward/record.url?scp=85017346414&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85017346414&partnerID=8YFLogxK

U2 - 10.1016/j.quascirev.2017.03.028

DO - 10.1016/j.quascirev.2017.03.028

M3 - Article

AN - SCOPUS:85017346414

VL - 164

SP - 187

EP - 198

JO - Quaternary Science Reviews

JF - Quaternary Science Reviews

SN - 0277-3791

ER -