PMEL Publications Abstract

FY 2007

Global relationships of total alkalinity with salinity and temperature in surface waters of the world's oceans

Lee, K., L.T. Tong, F.J. Millero, C.L. Sabine, A.G. Dickson, C. Goyet, G.-H. Park, R. Wanninkhof, R.A. Feely, and R.M. Key

Geophys. Res. Lett., 33, L19605, doi: 10.1029/2006GL027207 (2006)

A simple function of sea surface salinity (SSS) and temperature (SST) in the form A_T = a + b (SSS–35) + c (SSS–35)

+ d (SST–20) + e (SST–20)

fits surface total alkalinity (A_T) data for each of five oceanographic regimes within an area-weighted uncertainty of ±8.1 µmol kg

). Globally coherent surface A_T data (n = 5,692) used to derive regional correlations of A_T with SSS and SST were collected during the global carbon survey in the 1990s. Such region specific A_T algorithms presented herein enable the estimation of the global distribution of surface A_T when observations of SSS and SST are available.

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