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The effect of excess CO 2 on the calculated calcite and aragonite saturation horizons in the northeast Pacific
Author(s) -
Feely Richard A.,
Chen ChenTung A.
Publication year - 1982
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/gl009i011p01294
Subject(s) - aragonite , calcite , transect , saturation (graph theory) , geology , carbonate , oceanography , subarctic climate , supersaturation , pacific ocean , mineralogy , chemistry , mathematics , organic chemistry , combinatorics
Using the ΔTCO 2 ° results of Chen (1982a) obtained during a cruise in the northeast Pacific Ocean (June‐July 1981), we have calculated preindustrial and 1981 calcite and aragonite saturation horizons for a transect along 150°W between Alaska and Hawaii. Uptake of excess CO 2 by the oceans over the past 130 years has resulted in a significant change in the carbonate chemistry of the northeast Pacific Ocean. The results indicate an apparent reduction in the thickness of the supersaturated lenses and an upward translation of the 100% saturation level by as much as 150 meters for calcite and 70 meters for aragonite in the coldwater region north of the Subarctic Front.