Comparisons of drought variability between central High Asia and monsoonal Asia: Inferred from tree rings

Keyan FANG1,Xiaohua GOU1,Fahu CHEN1,Fen ZHANG1,Yingjun LI1,Jianfeng PENG2,

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Front. Earth Sci. ›› DOI: 10.1007/s11707-010-0111-8
Research articles
Research articles

Comparisons of drought variability between central High Asia and monsoonal Asia: Inferred from tree rings

  • Keyan FANG1,Xiaohua GOU1,Fahu CHEN1,Fen ZHANG1,Yingjun LI1,Jianfeng PENG2,
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Abstract

Severe drought is a serious natural disaster that frequently strikes East Asia, highlighting the need to understanding its drought regime and the associations with Asian monsoon. Tree-ring-based drought reconstructions provide invaluable paleoclimatic archives for detecting regional and large-scale drought variability and their potential forcings. We herein reviewed many drought reconstructions from central High Asia and monsoonal Asia and compared their similarities and differences, as well as their linkages to Asia monsoon. We compared the decadal-scale variability of six drought reconstructions for the central High Asia, where differing drought variations were found between the western and eastern portions. Seven drought reconstructions were reviewed for monsoonal Asia, from which a difference in drought variability was observed between the northern and southern parts. Therefore, we compared the drought variations of the four sub-regions of western and eastern parts of central High Asia, as well as northern and southern portions of monsoonal Asia. ENSO activity and sea surface temperature of western Pacific and northern Indian Oceans, coupled with Asian monsoon, play an important role in modulating drought variability of much area of the East Asia. An improved denser multi-index tree-ring network of longer length for East Asia is necessary for the establishment of more reliable large-scale drought reconstruction.

Keywords

tree ring / drought reconstruction / ENSO / central High Asia / monsoonal Asia

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Keyan FANG, Xiaohua GOU, Fahu CHEN, Fen ZHANG, Yingjun LI, Jianfeng PENG,. Comparisons of drought variability between central High Asia and monsoonal Asia: Inferred from tree rings. Front. Earth Sci., https://doi.org/10.1007/s11707-010-0111-8
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