A numerical analysis of biogeochemical controls with physical modulation on hypoxia during summer in the Pearl River estuary

Wang, Bin; Hu, Jiatang; Li, Shiyu; Liu, Dehong

doi:https://doi.org/10.5194/bg-14-2979-2017

Volume 14, issue 12

Biogeosciences, 14, 2979–2999, 2017
https://doi.org/10.5194/bg-14-2979-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Volume 14, issue 12

Research article 20 Jun 2017

Research article | 20 Jun 2017

A numerical analysis of biogeochemical controls with physical modulation on hypoxia during summer in the Pearl River estuary

Bin Wang et al.

Data sets

A numerical analysis of biogeochemical controls with physical modulation on hypoxia during summer B. Wang, J. Hu, S. Li, and L. Dehong http://wemt_number1.pc.goabc.cn/wemt_number1/vip_doc/4712454.html

Short summary

We proposed a novel method named the physical modulation method to quantify the contributions of boundary conditions, the source and sink processes occurring in local and adjacent waters to DO conditions. A mass balance analysis of DO based on the physical modulation method indicated that the DO conditions were mainly controlled by source and sink processes, among which the sediment oxygen demand and re-aeration were two main processes controlling the spatial extent and the duration of hypoxia.

We proposed a novel method named the physical modulation method to quantify the contributions of...