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(Article of periodic en Anglais - 2013)

Document title

Spatio-temporal variation of precipitation in the Three-River Headwater Region from 1961 to 2010

Authors(s) and Affiliation(s)

YI X. (1 2) ; LI G. (1) ; YIN Y. (1) ;
(1) Inst. of Geographic Sciences and Natural Resources Research, Beijing, CHINE
(2) Univ. of Chinese Academy of Sciences, Beijing, CHINE

Abstract

Based on a monthly dataset of precipitation time series (1961–2010) from 12 meteorological stations across the Three-River Headwater Region (THRHR) of Qinghai Province, the spatio-temporal variation and abrupt change analysis of precipitation were examined by using moving average, linear regression, spline interpolation, the Mann-Kendall test and so on. The long-term annual and seasonal precipitation in the study area indicated an increasing trend with some oscillations during 1961–2010. The changing trends of precipitation feature at different time scales in the THRHR, spatial patterns of temporal variation in precipitation and the abrupt change of precipitation are presented. The abrupt changes of spring precipitation were mainly in the late 1980s and early 1990s, while the abrupt changes of winter precipitation were primary in the mid-to late 1970s. This research would be helpful for further understanding the trends and periodicity of precipitation and for watershed-based water resource management in the THRHR

Source

Article of periodic

published at : Journal of geographical sciences. Acta geographica sinica / ISSN 1009-637X

Editor : CHINE

Millesime : 2013, vol. 23, no3 [pp. 447-464]

Bibliographic references : 56 ref.

Collation : 5 fig., 2 tabl.

Language

Anglais

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1007/s11442-013-1021-y

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2013
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