A gridded reconstruction of warm season precipitation for asia spanning the past half millennium

Song Feng, Qi Hu, Qianru Wu, Michael E. Mann

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

The authors reconstructed May-September precipitation over the Asian continent (58-558N, 608-1358E) back to AD 1470 on the basis of tree-ring data, historical documentary records, ice core records, and the few long-term instrumental data series available in the region. They employed the method of Regularized Expectation Maximization (RegEM) and applied it to 44 subregions within the continent. Verification exercises demonstrate that the reconstruction is skillful over most of the study domain, with eastern China, India, and other regions of humid climate displaying the greatest skill. Lower reconstruction skill is observed in semiarid and arid regions, which was attributable at least in part to the scarcity of observations available for calibration/ validation. The precipitation reconstructions agree well with previous reconstructions, where they are available. The explanatory value of the reconstruction is illustrated using five historically documented severe droughts in north-central China during the past half millennium. The reconstructions both validate and provide a larger-scale context for understanding these past climate events and their relationship with the Asian summer monsoons.

Original languageEnglish (US)
Pages (from-to)2192-2204
Number of pages13
JournalJournal of Climate
Volume26
Issue number7
DOIs
StatePublished - Apr 1 2013

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climate
tree ring
ice core
semiarid region
arid region
Asia
monsoon
drought
calibration
summer
continent
method

All Science Journal Classification (ASJC) codes

  • Atmospheric Science

Cite this

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A gridded reconstruction of warm season precipitation for asia spanning the past half millennium. / Feng, Song; Hu, Qi; Wu, Qianru; Mann, Michael E.

In: Journal of Climate, Vol. 26, No. 7, 01.04.2013, p. 2192-2204.

Research output: Contribution to journalArticle

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