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| Titel |
Teleconnection analysis of runoff and soil moisture over the Pearl River basin in southern China |
| VerfasserIn |
J. Niu, J. Chen, B. Sivakumar |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1027-5606
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| Digitales Dokument |
URL |
| Erschienen |
In: Hydrology and Earth System Sciences ; 18, no. 4 ; Nr. 18, no. 4 (2014-04-23), S.1475-1492 |
| Datensatznummer |
250120337
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| Publikation (Nr.) |
 copernicus.org/hess-18-1475-2014.pdf |
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| Zusammenfassung |
| This study explores the teleconnection of two climatic patterns, namely the
El Niño–Southern Oscillation (ENSO) and the Indian Ocean Dipole (IOD),
with hydrological processes over the Pearl River basin in southern China,
particularly on a sub-basin-scale basis. The Variable Infiltration Capacity
(VIC) model is used to simulate the daily hydrological processes over the
basin for the study period 1952–2000, and then, using the simulation
results, the time series of the monthly runoff and soil moisture anomalies
for its ten sub-basins are aggregated. Wavelet analysis is performed to
explore the variability properties of these time series at 49 timescales
ranging from 2 months to 9 yr. Use of the wavelet coherence and rank
correlation method reveals that the dominant variabilities of the time
series of runoff and soil moisture are basically correlated with IOD. The
influences of ENSO on the terrestrial hydrological processes are mainly
found in the eastern sub-basins. The teleconnections between climatic
patterns and hydrological variability also serve as a reference for
inferences on the occurrence of extreme hydrological events (e.g., floods and
droughts). |
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