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The spatial distribution of precipitation over the West Qinling region, China, AD 1470–2000
Stockholm University, Faculty of Humanities, Department of History.ORCID iD: 0000-0003-0220-3947
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2016 (English)In: Palaeogeography, Palaeoclimatology, Palaeoecology, ISSN 0031-0182, E-ISSN 1872-616X, Vol. 443, 278-285 p.Article in journal (Refereed) Published
Abstract [en]

The West Qinling Mountains form part of the climatic barrier that separates southern and northern China, and are located at the edge of the region dominated by the Asian summer monsoon. To investigate the spatial distribution of regional hydroclimatic variability in the West Qinling region, the annually resolved spatial field of rainy season (May–June–July–August–September, MJJAS) precipitation anomalies from AD 1470 to 2000 was reconstructed using 39 tree-ring chronologies, as well as 28 dryness/wetness indices derived from historical documentary data. The results indicate that the El Niño–Southern Oscillation (ENSO) and the Tropospheric Biennial Oscillation (TBO) may jointly affect the spatial pattern of precipitation over the West Qinling Mountains at inter-annual timescales. The drought in the 1990s was found to exceed the amplitude and duration of all other periods of drought that have occurred since AD 1470 in this region. The new precipitation field reconstruction assesses the spatial pattern of historical hydroclimatic variability in the West Qinling region and provides an opportunity to test the performance of climate models in simulating regional precipitation variability and change.

Place, publisher, year, edition, pages
2016. Vol. 443, 278-285 p.
Keyword [en]
Precipitation field reconstruction, West Qinling region, tree-ring data, dryness/wetness index
National Category
Climate Research
Research subject
Physical Geography
Identifiers
URN: urn:nbn:se:su:diva-124100DOI: 10.1016/j.palaeo.2015.12.003ISI: 000370090200023OAI: oai:DiVA.org:su-124100DiVA: diva2:882061
Available from: 2015-12-13 Created: 2015-12-13 Last updated: 2016-03-14Bibliographically approved

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Charpentier Ljungqvist, Fredrik
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Department of History
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