dc.contributor.author | Valsala, Vinu | |
dc.contributor.author | Maksyutov, Shamil | |
dc.date.accessioned | 2019-05-14T14:56:57Z | |
dc.date.available | 2019-05-14T14:56:57Z | |
dc.date.issued | 2010 | |
dc.identifier.citation | Valsala. V. and Maksyutov, S. (2010) Simulation and assimilation of global ocean pCO2 and air–sea CO2 fluxes using ship observations of surface ocean pCO 2in a simplified biogeochemical offline model. Tellus, 62B, pp.821-840. DOI: 10.1111/j.1600-0889.2010.00495.x | en_US |
dc.identifier.uri | http://hdl.handle.net/11329/933 | |
dc.identifier.uri | http://dx.doi.org/10.25607/OBP-474 | |
dc.description.abstract | We used an offline tracer transport model, driven by reanalysis ocean currents and coupled to a simple biogeochemical
model, to synthesize the surface ocean pCO2 and air–sea CO2 flux of the global ocean from 1996 to 2004, using a
variational assimilation method. This oceanic CO2 flux analysis system was developed at the National Institute for
Environmental Studies (NIES), Japan, as part of a project that provides prior fluxes for atmospheric inversions using
CO2 measurements made from an on-board instrument attached to the Greenhouse gas Observing SATellite (GOSAT).
Nearly 250 000 pCO2 observations from the database of Takahashi et al. (2007) have been assimilated into the model
with a strong constraint provide by ship-track observations while maintaining a weak constraint of 20% on global
averages of monthly mean pCO2 in regions where observations are limited. The synthesized global air–sea CO2 flux
shows a net sink of 1.48 PgC yr−1. The Southern Ocean air–sea CO2 flux is a sink of 0.41 PgC yr−1. The interannual
variability of synthesized CO2 flux from the El Nino region suggests a weaker source (by an amplitude of 0.4 PgC yr ˜ −1)
during the El Nino events in 1997/1998 and 2003/2004. The assimilated air–sea CO ˜ 2 flux shows remarkable correlations
with the CO2 fluxes obtained from atmospheric inversions on interannual time-scales. | en_US |
dc.language.iso | en | en_US |
dc.title | Simulation and assimilation of global ocean pCO2 and air–sea CO2 fluxes using ship observations of surface ocean pCO2 in a simplified biogeochemical offline model. | en_US |
dc.type | Journal Contribution | en_US |
dc.description.notes | Model Data: https://www.nodc.noaa.gov/archive/arc0102/0157733/1.1/data/0-data/ | en_US |
dc.description.refereed | Refereed | en_US |
dc.format.pagerange | pp.821–84 | en_US |
dc.identifier.doi | 10.1111/j.1600-0889.2010.00495.x | |
dc.subject.parameterDiscipline | Parameter Discipline::Chemical oceanography | en_US |
dc.bibliographicCitation.title | Tellus | en_US |
dc.bibliographicCitation.volume | 62B | en_US |
dc.description.eov | Inorganic carbon | en_US |
dc.description.eov | Stable carbon isotopes | en_US |
dc.description.bptype | Best Practice | en_US |
dc.description.bptype | Standard Operating Procedure | en_US |
obps.contact.contactemail | vinu.valsala@nies.go.jp | |
obps.resourceurl.publisher | https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1600-0889.2010.00495.x | en_US |