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Effect of improved subgrid scale transport of tracers on uptake of bomb radiocarbon in the GFDL Ocean General Circulation Model
Author(s) -
Duffy P. B.,
Eltgroth P.,
Bourgeois A. J.,
Caldeira K.
Publication year - 1995
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/95gl00807
Subject(s) - isopycnal , advection , radiocarbon dating , tracer , ocean general circulation model , ocean current , climatology , general circulation model , environmental science , thermohaline circulation , circulation (fluid dynamics) , scale (ratio) , geology , atmospheric sciences , oceanography , climate change , physics , mechanics , thermodynamics , paleontology , quantum mechanics , nuclear physics
We show that the Gent‐McWilliams tracer transport parameterization greatly improves the ability of the GFDL ocean general circulation model to simulate vertical profiles of both temperature and bomb radiocarbon with a single set of model parameter values. This parameterization, which includes new advection terms as well as isopycnal mixing, has previously been shown to greatly improve simulated temperature fields. Here, we show that it does not markedly affect the already good simulation of oceanic absorption of bomb radiocarbon, and discuss the reasons for this result.