Correlations between Salinity and Tidal Process in Modaomen Waterway of the Pearl River Estuary

ZHANG Wen; LIU Bingjun; CHEN Xiaohong; XIN Yanbo; YAN Shulan

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Correlations between Salinity and Tidal Process in Modaomen Waterway of the Pearl River Estuary

更新时间：2023-12-11

- Correlations between Salinity and Tidal Process in Modaomen Waterway of the Pearl River Estuary
- Acta Scientiarum Naturalium Universitatis SunYatseni Vol. 52, Issue 6, Pages: 11-16(2013)
- 作者机构：
  
  1. 中山大学地理科学与规划学院水资源与环境系∥华南地区水循环与水安全广东省普通高校重点实验室,广东,广州,510275
  2. 
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2013，
  
  Published Online：25 December 2013，
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ZHANG Wen, LIU Bingjun, CHEN Xiaohong, et al. Correlations between Salinity and Tidal Process in Modaomen Waterway of the Pearl River Estuary. [J]. Acta Scientiarum Naturalium Universitatis SunYatseni 52(6):11-16(2013)
DOI：

ZHANG Wen, LIU Bingjun, CHEN Xiaohong, et al. Correlations between Salinity and Tidal Process in Modaomen Waterway of the Pearl River Estuary. [J]. Acta Scientiarum Naturalium Universitatis SunYatseni 52(6):11-16(2013) DOI：

摘要

珠江河口区河网复杂，受到径流、潮汐等多种自然因素及人类活动的共同影响，咸潮上溯过程中盐度变化异常复杂。选取近10年枯水期磨刀门水道广昌站逐日盐度序列与三灶站同期潮位过程，应用交叉小波分析方法，研究了珠江河口区磨刀门水道盐度变化与潮汐过程的相关性。研究结果表明：磨刀门水道盐度变化与潮汐过程在15 d的变化周期上存在显著相关关系，位相差约为60°~90°，即盐度变化提前于潮汐过程约2.5~3.75 d。

Abstract

The Pearl River Estuary region is densely covered with rivers. Affected by runoff

tide and other natural factors and human activities

the salinity change process during salt water intrusion period is extremely complex. With the data of salinity from Guangchang Station and tidal range from Sanzao Station

the period features of salinity change and the correlation between tides and salinity change in Modaomen waterway were studied using wavelet analysis. The results show significant correlation between salinity change and tides in the cycle of 15 days. Phase difference is about 60°~90°

that means salinity changes ahead of tidal process about 2.5~3.75 days.

关键词

磨刀门水道盐度变化潮汐过程时延相关性

Keywords

the Pearl River estuarysalinity changestidal processdelay correlation

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