Distribution of anthropogenic CO2 in the Pacific Ocean

[1] This work presents an estimate of anthropogenic CO2 in the Pacific Ocean based on measurements from the WOCE/JGOFS/OACES global CO2 survey. These estimates used a modified version of the DeltaC* technique. Modifications include a revised preformed alkalinity term, a correction for denitrificatio...

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Bibliographic Details
Published in:Global Biogeochemical Cycles
Main Authors: Sabine, CL, Feely, RA, Key, RM, Bullister, JL, Millero, FJ, Lee, K, Peng, TH, Tilbrook, B, Ono, T, Wong, CS
Other Authors: 환경연구소, 10056383
Format: Article in Journal/Newspaper
Language:English
Published: AMER GEOPHYSICAL UNION 2002
Subjects:
Pacific Ocean
anthropogenic CO2
carbon cycle
total CO2
delta C*
optimum multiparameter analysis
DISSOLVED INORGANIC CARBON
WESTERN NORTH PACIFIC
INDIAN-OCEAN
ATLANTIC-OCEAN
SURFACE OCEAN
BOTTOM WATER
RED-SEA
INCREASE
DIOXIDE
CIRCULATION
Indian
Okhotsk
Pacific
Southern Ocean
North Atlantic
Online Access:https://oasis.postech.ac.kr/handle/2014.oak/29090
https://doi.org/10.1029/2001GB001639
Description
Summary:[1] This work presents an estimate of anthropogenic CO2 in the Pacific Ocean based on measurements from the WOCE/JGOFS/OACES global CO2 survey. These estimates used a modified version of the DeltaC* technique. Modifications include a revised preformed alkalinity term, a correction for denitrification, and an evaluation of the disequilibrium terms using an optimum multiparameter analysis. The total anthropogenic CO2 inventory over an area from 120degreesE to 70degreesW and 70degreesS to 65degreesN (excluding the South China Sea, the Yellow Sea, the Japan/East Sea, and the Sea of Okhotsk) was 44.5 +/- 5 Pg C in 1994. Approximately 28 Pg C was located in the Southern Hemisphere and 16.5 Pg C was located north of the equator. The deepest penetration of anthropogenic CO2 is found at about 50 S. The shallowest penetration is found just north of the equator. Very shallow anthropogenic CO2 penetration is also generally observed in the high-latitude Southern Ocean. One exception to this is found in the far southwestern Pacific where there is evidence of anthropogenic CO2 in the northward moving bottom waters. In the North Pacific a strong zonal gradient is observed in the anthropogenic CO2 penetration depth with the deepest penetration in the western Pacific. The Pacific has the largest total inventory in all of the southern latitudes despite the fact that it generally has the lowest average inventory when normalized to a unit area. The lack of deep and bottom water formation in the North Pacific means that the North Pacific inventories are smaller than the North Atlantic. X 1 1 87 scie scopus

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