Technical note: Interpreting pH changes

doi:10.5194/bg-18-1407-2021

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Technical note: Interpreting pH changes

2021-02-24

Andrea J. Fassbender *

James C. Orr

Andrew G. Dickson

DOI：10.5194/bg-18-1407-2021

Original

Original request for help

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Abstract

En 中文

The number and quality of ocean pH measurements have increased substantially over the past few decades such that trends, variability, and spatial patterns of change are now being evaluated. However, comparing pH changes across domains with different initial pH values can be misleading because a pH change reflects a relative change in the hydrogen ion concentration ([HC], expressed in mol kg(-1)) rather than an absolute change in [HC]. We recommend that [HC] be used in addition to pH when describing such changes and provide three examples illustrating why.

Keywords:

GLOBAL SURFACE OCEAN

ANTHROPOGENIC CARBON

INORGANIC CARBON

SEA-WATER

ACIDIFICATION

CO2

PACIFIC

CLIMATE

CHEMISTRY

SEAWATER

Journal

Biogeosciences

IF:

3.9

Papers:

6.5K

Citations:

2.4W

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CEA

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3.5W

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Monterey Bay Aquarium Research Institute

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Universite Paris Saclay

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Citations: 540

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