Global relationships of total inorganic carbon with temperature and nitrate in surface seawater

Kitack Lee, Rik Wanninkhof, Richard A. Feely, Frank J Millero, Tsung Hung Peng

Research output: Contribution to journalArticle

44 Citations (Scopus)

Abstract

High quality total inorganic carbon (C(T)) measurements made in the major ocean basins as part of the Joint Global Ocean Flux Study (JGOFS), the National Oceanic and Atmospheric Administration/Ocean Atmosphere Carbon Exchange Study (NOAA/OACES), and the Department of Energy/World Ocean Circulation Experiment (DOE/WOCE) programs and related to sea surface temperature (SST) and nitrate (NO3 -). A simple two-parameter function with SST and NO3 - of the form NC(T)= a + b SST + c SST2 + d NO3 - fits salinity (S)-normalized surface C(T)(NC(T)=C(T)x35/S) data for different parts of the oceans within an area-weighted error of±7 μmol kg-1 (1σ). Estimated values of NC(T) using the derived algorithms with NO3 - and SST are compared with values calculated from the surface partial pressure of CO2 (pCO(2sw)) [Takabashi et al., 1997] and total alkalinity (A(T)) [Millero et al., 1998] fields using thermodynamic models. Comparisons of the estimated values of NC(T) with measurements not used to derive the same algorithms, and comparisons with the values calculated from global A(T) and pCO(2sw) fields, give a realistic uncertainty of ±15 μmol kg-1 in estimated C(T). The derived correlations of NC(T) with SST and NO3 presented here make it possible to estimate surface C(T) over the ocean from climatological SST, S, and NO3 - fields.

Original languageEnglish (US)
Pages (from-to)979-994
Number of pages16
JournalGlobal Biogeochemical Cycles
Volume14
Issue number3
StatePublished - 2000

Fingerprint

inorganic carbon
Seawater
Nitrates
Carbon
sea surface temperature
nitrate
seawater
temperature
Temperature
alkalinity
ocean
Alkalinity
surface pressure
ocean basin
global ocean
partial pressure
thermodynamics
salinity
Partial pressure
atmosphere

ASJC Scopus subject areas

  • Global and Planetary Change
  • Atmospheric Science
  • Environmental Science(all)
  • Environmental Chemistry

Cite this

Lee, K., Wanninkhof, R., Feely, R. A., Millero, F. J., & Peng, T. H. (2000). Global relationships of total inorganic carbon with temperature and nitrate in surface seawater. Global Biogeochemical Cycles, 14(3), 979-994.

Global relationships of total inorganic carbon with temperature and nitrate in surface seawater. / Lee, Kitack; Wanninkhof, Rik; Feely, Richard A.; Millero, Frank J; Peng, Tsung Hung.

In: Global Biogeochemical Cycles, Vol. 14, No. 3, 2000, p. 979-994.

Research output: Contribution to journalArticle

Lee, K, Wanninkhof, R, Feely, RA, Millero, FJ & Peng, TH 2000, 'Global relationships of total inorganic carbon with temperature and nitrate in surface seawater', Global Biogeochemical Cycles, vol. 14, no. 3, pp. 979-994.
Lee, Kitack ; Wanninkhof, Rik ; Feely, Richard A. ; Millero, Frank J ; Peng, Tsung Hung. / Global relationships of total inorganic carbon with temperature and nitrate in surface seawater. In: Global Biogeochemical Cycles. 2000 ; Vol. 14, No. 3. pp. 979-994.
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