Relative humidity history on the Batang-Litang Plateau of western China since 1755 reconstructed from tree-ring δ18O and δD

Wenling An, Xiaohong Liu, Steven Leavitt, Guobao Xu, Xiaomin Zeng, Wenzhi Wang, Dahe Qin, Jiawen Ren

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

We measured the annual variation in the stable isotopes of oxygen (δ18O) and hydrogen (δD) in tree rings of Abies georgei on the Batang-Litang Plateau of western China. Although correlations between tree-ring δ18O and δD are relatively weak in semi-arid regions, we found a strong correlation between the δ18O and δD time series from 1755 to 2009 under the wetter environment. Tree-ring δ18O and δD time series are both significantly and negatively correlated with moisture conditions from June to August, including relative humidity and total precipitation, respectively, from 1960 to 2009. Considering the difference in low-frequency domain between the two isotopes, the relative humidity histories from June to August, reconstructed separately from the tree-ring δ18O and δD data with instrumental climate data, reveal a persistent drying trend since 1850s, especially since the early 1970s. There is an obvious offset of reconstructed relative humidity from tree-ring δ18O and δD in the period 1755-1820, despite the strong similarity in their 21-year moving averages. The decreased relative humidity since the 1850s may be associated with the thermal contrast between the sea surface temperature of the Indian Ocean and the Qinghai-Tibetan Plateau, which determines the strength of moisture transfer via the Indian summer monsoon.

Original languageEnglish (US)
Pages (from-to)2639-2654
Number of pages16
JournalClimate Dynamics
Volume42
Issue number9-10
DOIs
StatePublished - 2014

Fingerprint

tree ring
relative humidity
plateau
history
time series
moisture transfer
semiarid region
annual variation
stable isotope
monsoon
sea surface temperature
moisture
hydrogen
isotope
oxygen
climate
summer

Keywords

  • Atmospheric circulations
  • Batang-Litang Plateau
  • Dendrochronology
  • Relative humidity
  • Tree rings
  • δD

ASJC Scopus subject areas

  • Atmospheric Science

Cite this

Relative humidity history on the Batang-Litang Plateau of western China since 1755 reconstructed from tree-ring δ18O and δD. / An, Wenling; Liu, Xiaohong; Leavitt, Steven; Xu, Guobao; Zeng, Xiaomin; Wang, Wenzhi; Qin, Dahe; Ren, Jiawen.

In: Climate Dynamics, Vol. 42, No. 9-10, 2014, p. 2639-2654.

Research output: Contribution to journalArticle

An, Wenling ; Liu, Xiaohong ; Leavitt, Steven ; Xu, Guobao ; Zeng, Xiaomin ; Wang, Wenzhi ; Qin, Dahe ; Ren, Jiawen. / Relative humidity history on the Batang-Litang Plateau of western China since 1755 reconstructed from tree-ring δ18O and δD. In: Climate Dynamics. 2014 ; Vol. 42, No. 9-10. pp. 2639-2654.
@article{f4d97837f5884db4b23c0309c5e019b2,
title = "Relative humidity history on the Batang-Litang Plateau of western China since 1755 reconstructed from tree-ring δ18O and δD",
abstract = "We measured the annual variation in the stable isotopes of oxygen (δ18O) and hydrogen (δD) in tree rings of Abies georgei on the Batang-Litang Plateau of western China. Although correlations between tree-ring δ18O and δD are relatively weak in semi-arid regions, we found a strong correlation between the δ18O and δD time series from 1755 to 2009 under the wetter environment. Tree-ring δ18O and δD time series are both significantly and negatively correlated with moisture conditions from June to August, including relative humidity and total precipitation, respectively, from 1960 to 2009. Considering the difference in low-frequency domain between the two isotopes, the relative humidity histories from June to August, reconstructed separately from the tree-ring δ18O and δD data with instrumental climate data, reveal a persistent drying trend since 1850s, especially since the early 1970s. There is an obvious offset of reconstructed relative humidity from tree-ring δ18O and δD in the period 1755-1820, despite the strong similarity in their 21-year moving averages. The decreased relative humidity since the 1850s may be associated with the thermal contrast between the sea surface temperature of the Indian Ocean and the Qinghai-Tibetan Plateau, which determines the strength of moisture transfer via the Indian summer monsoon.",
keywords = "Atmospheric circulations, Batang-Litang Plateau, Dendrochronology, Relative humidity, Tree rings, δD",
author = "Wenling An and Xiaohong Liu and Steven Leavitt and Guobao Xu and Xiaomin Zeng and Wenzhi Wang and Dahe Qin and Jiawen Ren",
year = "2014",
doi = "10.1007/s00382-013-1937-z",
language = "English (US)",
volume = "42",
pages = "2639--2654",
journal = "Climate Dynamics",
issn = "0930-7575",
publisher = "Springer Verlag",
number = "9-10",

}

TY - JOUR

T1 - Relative humidity history on the Batang-Litang Plateau of western China since 1755 reconstructed from tree-ring δ18O and δD

AU - An, Wenling

AU - Liu, Xiaohong

AU - Leavitt, Steven

AU - Xu, Guobao

AU - Zeng, Xiaomin

AU - Wang, Wenzhi

AU - Qin, Dahe

AU - Ren, Jiawen

PY - 2014

Y1 - 2014

N2 - We measured the annual variation in the stable isotopes of oxygen (δ18O) and hydrogen (δD) in tree rings of Abies georgei on the Batang-Litang Plateau of western China. Although correlations between tree-ring δ18O and δD are relatively weak in semi-arid regions, we found a strong correlation between the δ18O and δD time series from 1755 to 2009 under the wetter environment. Tree-ring δ18O and δD time series are both significantly and negatively correlated with moisture conditions from June to August, including relative humidity and total precipitation, respectively, from 1960 to 2009. Considering the difference in low-frequency domain between the two isotopes, the relative humidity histories from June to August, reconstructed separately from the tree-ring δ18O and δD data with instrumental climate data, reveal a persistent drying trend since 1850s, especially since the early 1970s. There is an obvious offset of reconstructed relative humidity from tree-ring δ18O and δD in the period 1755-1820, despite the strong similarity in their 21-year moving averages. The decreased relative humidity since the 1850s may be associated with the thermal contrast between the sea surface temperature of the Indian Ocean and the Qinghai-Tibetan Plateau, which determines the strength of moisture transfer via the Indian summer monsoon.

AB - We measured the annual variation in the stable isotopes of oxygen (δ18O) and hydrogen (δD) in tree rings of Abies georgei on the Batang-Litang Plateau of western China. Although correlations between tree-ring δ18O and δD are relatively weak in semi-arid regions, we found a strong correlation between the δ18O and δD time series from 1755 to 2009 under the wetter environment. Tree-ring δ18O and δD time series are both significantly and negatively correlated with moisture conditions from June to August, including relative humidity and total precipitation, respectively, from 1960 to 2009. Considering the difference in low-frequency domain between the two isotopes, the relative humidity histories from June to August, reconstructed separately from the tree-ring δ18O and δD data with instrumental climate data, reveal a persistent drying trend since 1850s, especially since the early 1970s. There is an obvious offset of reconstructed relative humidity from tree-ring δ18O and δD in the period 1755-1820, despite the strong similarity in their 21-year moving averages. The decreased relative humidity since the 1850s may be associated with the thermal contrast between the sea surface temperature of the Indian Ocean and the Qinghai-Tibetan Plateau, which determines the strength of moisture transfer via the Indian summer monsoon.

KW - Atmospheric circulations

KW - Batang-Litang Plateau

KW - Dendrochronology

KW - Relative humidity

KW - Tree rings

KW - δD

UR - http://www.scopus.com/inward/record.url?scp=84899903869&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84899903869&partnerID=8YFLogxK

U2 - 10.1007/s00382-013-1937-z

DO - 10.1007/s00382-013-1937-z

M3 - Article

AN - SCOPUS:84899903869

VL - 42

SP - 2639

EP - 2654

JO - Climate Dynamics

JF - Climate Dynamics

SN - 0930-7575

IS - 9-10

ER -