sea_water_ph_reported_on_total_scale

complete

Created: May 11, 2017

Proposer: Alison Pamment

Proposed Date: 2017-05-11

CMIP6 - OMIP Updated definition of pH to replace 'activity' with 'concentration' for consistency with OMIP discussion.

New standard names for OMIP biogeochemistry and chemistry

Change Date: May 11, 2017, 1:21 p.m.

Term: sea_water_ph_reported_on_total_scale

Unit: 1

Unit ref:

AMIP:

GRIB:

'sea_water_pH_reported_on_total_scale' is the measure of acidity of seawater, defined as the negative logarithm of the activity of dissolved hydrogen ions plus bisulfate ions in a sea water medium; it can be measured or calculated; when measured the scale is defined according to a series of buffers prepared in artificial seawater containing bisulfate. The quantity may be written as pH(total) = -log([H+](free) + [HSO4-]).

Change Date: May 11, 2017, 1:26 p.m.

Term: sea_water_ph_reported_on_total_scale

Unit: 1

Unit ref: UUUU

AMIP:

GRIB:

'sea_water_pH_reported_on_total_scale' is the measure of acidity of seawater, defined as the negative logarithm of the concentration of dissolved hydrogen ions plus bisulfate ions in a sea water medium; it can be measured or calculated; when measured the scale is defined according to a series of buffers prepared in artificial seawater containing bisulfate. The quantity may be written as pH(total) = -log([H+](free) + [HSO4-]).