TY - JOUR
T1 - Abrupt Contraction of the Indo-East Asian Monsoons Ended the Holocene Humid Period
AU - Goldsmith, Yonaton
AU - Xu, Hai
AU - Torfstein, Adi
AU - Lan, Jianghu
AU - Song, Yunping
AU - Zhang, Jin
AU - Zhou, Kang'en
AU - Cheng, Jun
AU - Enzel, Yehouda
N1 - Publisher Copyright:
© 2022. The Authors.
PY - 2022/11/28
Y1 - 2022/11/28
N2 - Rain-belt migration, and in particular monsoon migration, are a cardinal, yet under-constrained aspect of climate change. Here, we present a new lake-level record from a closed-basin lake in northern China and a compilation of available lake level records from closed-basin lakes located at the northern margins of East Asian and Indian monsoon regions. These data show that ca. 6 ka ago, changes in water availability, as recorded by the surface areas of the closed-basin lakes, shrunk dramatically, within a few decades, and have not been restored to their pre-6 ka sizes since. These data imply that the Indo-East Asian monsoon systems underwent a large coeval southward contraction, which preceded the gradual decline in insolation forcing, and abruptly ended the Holocene Humid Period (HHP). This new compilation enables to constrain potential feedback mechanisms involved in the early termination of the HHP at the monsoon fringes.
AB - Rain-belt migration, and in particular monsoon migration, are a cardinal, yet under-constrained aspect of climate change. Here, we present a new lake-level record from a closed-basin lake in northern China and a compilation of available lake level records from closed-basin lakes located at the northern margins of East Asian and Indian monsoon regions. These data show that ca. 6 ka ago, changes in water availability, as recorded by the surface areas of the closed-basin lakes, shrunk dramatically, within a few decades, and have not been restored to their pre-6 ka sizes since. These data imply that the Indo-East Asian monsoon systems underwent a large coeval southward contraction, which preceded the gradual decline in insolation forcing, and abruptly ended the Holocene Humid Period (HHP). This new compilation enables to constrain potential feedback mechanisms involved in the early termination of the HHP at the monsoon fringes.
KW - East Asian monsoon
KW - Holocene Humid Period
KW - Indian monsoon
KW - closed basin lake
KW - paleoclimate
UR - http://www.scopus.com/inward/record.url?scp=85142880475&partnerID=8YFLogxK
U2 - 10.1029/2022GL100137
DO - 10.1029/2022GL100137
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AN - SCOPUS:85142880475
SN - 0094-8276
VL - 49
JO - Geophysical Research Letters
JF - Geophysical Research Letters
IS - 22
M1 - e2022GL100137
ER -
