Anthropogenic CO2 accumulation and uptake rates in the Pacific Ocean based on changes in the C-13/C-12 of dissolved inorganic carbon

Quay, P.; Sonnerup, R.; Munro, D.; Sweeney, C.

doi:10.1002/2016gb005460

Advanced Search

Select up to three search categories and corresponding keywords using the fields to the right. Refer to the Help section for more detailed instructions.

Search our Collections & Repository

Advanced Search
Custom Query

All these words:

For very narrow results

This exact word or phrase:

When looking for a specific result

Any of these words:

Best used for discovery & interchangable words

None of these words:

Recommended to be used in conjunction with other fields

Language:

Dates

Publication Date Range:

to

Document Data

Title:

Document Type:

Library

Collection:

Series:

People

Author:

Clear All

Query Builder

Query box

Clear All

For additional assistance using the Custom Query please check out our Help Page

i

Anthropogenic CO2 accumulation and uptake rates in the Pacific Ocean based on changes in the C-13/C-12 of dissolved inorganic carbon

2017
By Quay, P. ; Sonnerup, R. ; Munro, D. ; ...
Source: Global Biogeochemical Cycles, 31(1), 59-80.

[PDF-2.10 MB]

Details You May Also Like

Details:

Journal Title:

Global Biogeochemical Cycles
Personal Author:

Quay, P. ; Sonnerup, R. ; Munro, D. ; Sweeney, C.

Quay, P. ; Sonnerup, R. ; Munro, D. ; Sweeney, C. Less -
NOAA Program & Office:

OAR (Oceanic and Atmospheric Research) ; JISAO (Joint Institute for the Study of the Atmosphere and Ocean) ; CIRES (Cooperative Institute for Research in Environmental Sciences)

OAR (Oceanic and Atmospheric Research) ; JISAO (Joint Institute for the Study of the Atmosphere and Ocean) ; CIRES (Cooperative Institute for Research in Environmental Sciences) Less -
Description:

The anthropogenic CO2 accumulation rate for the Pacific Ocean was estimated from the decrease in C-13 of the dissolved inorganic carbon measured on six World Ocean Circulation Experiment cruises during the 1990s and repeated during Climate Variability and Predictability in the 2000s. A mean depth-integrated anthropogenic C-13 change of -8320mdecade(-1) was estimated for the basin by using the multiple linear regression approach. The largest anthropogenic C-13 decreases occurred between 40 degrees S and 60 degrees S, whereas the smallest decreases occurred in the Southern Ocean and subpolar North Pacific. A mean anthropogenic CO2 accumulation rate of 0.410.13molCm(-2)yr(-1) (0.820.26PgCyr(-1)) was determined based on observed C-13 changes and is in agreement with previous observation- and model-based estimates. The mean dissolved inorganic carbon DIC13 inventory change of -178 +/- 43 parts per thousand molm(-2)decade(-1) was primarily the result of air-sea CO2 exchange acting on the measured air-sea C-13 disequilibrium of similar to-1.2 +/- 0.1 parts per thousand. Regional differences between the DIC13 inventory change and air-sea (CO2)-C-13 flux yielded net anthropogenic CO2 uptake rates (independent of pCO(2)) that ranged from similar to 0 to 1molm(-2)yr(-1) and basin-wide mean of 1.2 +/- 1.5PgCyr(-1). High rates of surface ocean DIC increase and C-13 decrease observed in the Drake Passage (53 degrees S-60 degrees S) support above average anthropogenic CO2 accumulation since 2005. Observed C-13 changes in the Pacific Ocean indicate that ocean transport significantly impacted the anthropogenic CO2 distribution and illustrate the utility of C-13 as a tracer to unravel the processes controlling the present and future accumulation of anth ropogenic CO2 in the ocean.
Source:

Global Biogeochemical Cycles, 31(1), 59-80.
DOI:

https://doi.org/10.1002/2016gb005460
Document Type:

Journal Article
Rights Information:

Other
Compliance:

Submitted
Main Document Checksum:

[+]

urn:sha256:19cd866839824a98538402b4165877f545f7418743b2dc52a9039c063120b68f
Download URL:

https://repository.library.noaa.gov/view/noaa/22308/noaa_22308_DS1.pdf
File Type:

No Additional Files

More +

Anthropogenic CO2 accumulation and uptake rates in the Pacific Ocean based on changes in the C-13/C-12 of dissolved inorganic carbon

Details:

Supporting Files

You May Also Like