scholarly journals Coherent modes in multi-scale variability of precipitation over the headwater catchments in the Pearl River basin, South China

2016 ◽  
Vol 31 (4) ◽  
pp. 948-955 ◽  
Author(s):  
Jun Niu ◽  
Ji Chen ◽  
Keyi Wang ◽  
Bellie Sivakumar
2013 ◽  
Vol 10 (9) ◽  
pp. 11943-11982 ◽  
Author(s):  
J. Niu ◽  
J. Chen ◽  
B. Sivakumar

Abstract. 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 South China. 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 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 basis for inferences on the occurrence of extreme hydrological events (e.g. floods and droughts).


Zootaxa ◽  
2018 ◽  
Vol 4471 (1) ◽  
pp. 125
Author(s):  
LIANG CAO ◽  
E. ZHANG

Schistura alboguttata, a new species of nemacheilid loach, is herein described from the Leli-He, a tributary flowing to the You-Jiang of the Pearl River basin (Zhu-Jiang in Chinese) at Tianlin County, Guangxi, South China. This new species can be readily distinguished from all other Chinese species of Schistura by its striking body coloration consisting of irregular white spots scattered over the dorsal and lateral regions of the body, with occasional irregular bars with narrow interspaces on the predorsal region. 


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