Details

Autor(en) / Beteiligte

• Lin, Yong
• Liu, Shirong
• Li, Chongwei
• Ge, Jianqing
• Suo, Anning
• Chen, Baoyu

Titel

Application of wavelet transform to monthly runoff time serial analysis in Zagunao watershed, the upper Minjiang river

Ist Teil von

• Ying yong sheng tai xue bao, 2005-09, Vol.16 (9), p.1645

Ort / Verlag

China

Erscheinungsjahr

2005

Quelle

MEDLINE

Beschreibungen/Notizen

• Runoff is an important component of regional water resources, and its dynamics is to some extent an indicator of water resources dynamics in a region. To know the runoff dynamics and water resources in a region is essential for the sustainable utilization and planning of water resources, and for the research on hydrological response of vegetation change at watershed scale. To disclose the water resources dynamics in Upper Minjiang River, one of the large reaches of Yangze River in southwest China, this paper analyzed the runoff dynamic features of Zagunao watershed, an important watershed in Minjiang River basin. Multi-Resolution Analysis (MRA) and periodicity analysis were conducted with Dmey wavelet function on the monthly runoff data from 1962 to 2002 observed by Zagunao hydrological station, which provided a data-based approximation on the evolution of monthly runoff in Zagunao watershed. It was found that the runoff dynamics in Zagunao watershed was relatively stable during 1962 - 1978, despite that this