CONTINUOUS SHIPBOARD MEASUREMENT OF THE PH OF SURFACE SEAWATERS, AND DERIVATION OF THE CORRESPONDING RECORD OF PCO2

被引：10

作者：

BUTLER, ECV

MACKEY, DJ

机构：

[1] CSIRO Division of Oceanography, Marine Laboratories, Hobart, TAS 7001

来源：

SCIENCE OF THE TOTAL ENVIRONMENT | 1992年 / 112卷 / 2-3期

关键词：

D O I：

10.1016/0048-9697(92)90185-U

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A shipboard system comprising a peristaltic pump, digital pH meter, and flow-cell with pH electrode and temperature probe has been used for underway measurement of surface water pH. The high-precision pH data is logged on board with continuous records of surface temperature and salinity. The partial pressure of carbon dioxide, pCO2, in surface waters can be calculated from pH and derived alkalinities if internally consistent thermodynamic data is used. Measurements of pH, and estimations of pCO2 in the Tasman Sea and around the south of New Zealand, reveal regions where these two parameters are highly correlated with surface temperature and salinity. The discussion focuses on pH and pCO2 changes in the region of the Subtropical Convergence.

引用

页码：165 / 175

页数：11

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