Table 7-3: previously published measurements of chemical enhancement

author

medium

control

Temp / C

pCO2

set-up

prediction

Wanninkhof & Knox 1996 seawater N2O 20 - 25 water high
air low
small stirred tank My calculation (published was Schmidt number corrected)
DeGrandpre et al 1995 seawater O2 20.7 270? small annular wind tunnel My calculation (data taken from graph)
Broecker & Peng 1974 seawater & freshwater pH 8.2 acidified freshwater 23? not known small stirred tank My calculation (published used formula from
Bolin 1960)
Liss 1973 freshwater pH 6.5 O2 ? (low pH) wind tunnel Published calculation (can't calculate without temperature)
Hoover & Berkshire 1969 freshwater pH 6.5 acidified freshwater 20 - 25 (low pH) stirred tank with wind Published calculation (my predictions are slightly higher)