The spatial distribution of precipitation over the West Qinling region, China, AD 1470–2000

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.

NATURVETENSKAP Geovetenskap och miljövetenskap Klimatforskning hsv//swe
NATURAL SCIENCES Earth and Related Environmental Sciences Climate Research hsv//eng
Precipitation field reconstruction
West Qinling region
tree-ring data
dryness/wetness index
Physical Geography
naturgeografi

Wang, Naiang (författare)
Shi, Feng (författare)
Charpentier Ljungqvist, Fredrik,1982-Stockholms universitet,Historiska institutionen(Swepub:su)fchar (författare)
Zhao, Sen (författare)
Liu, Ting (författare)
Stockholms universitetHistoriska institutionen (creator_code:org_t)

Ingår i:Palaeogeography, Palaeoclimatology, Palaeoecology: Elsevier BV443, s. 278-2850031-01821872-616X

Av författaren/redakt...: Yang, Fengmei; Wang, Naiang; Shi, Feng; Charpentier Ljun ...; Zhao, Sen; Liu, Ting

Om ämnet

NATURVETENSKAP: NATURVETENSKAP; och Geovetenskap och ...; och Klimatforskning

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