Physical control on the seasonal cycle of surface pCO2 in the equatorial Pacific

Details Physical control on the seasonal cycle of surface pCO2 in the equatorial Pacific Physical control on the seasonal cycle of surface pCO2 in the equatorial Pacific

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006georl..3323608j&link_type=abstract

Geophysical Research Letters, Volume 33, Issue 23, CiteID L23608

Mathematics

Logic

2

Oceanography: Biological And Chemical: Carbon Cycling (0428), Oceanography: Biological And Chemical: Biogeochemical Cycles, Processes, And Modeling (0412, 0414, 0793, 1615, 4912), Oceanography: General: Equatorial Oceanography, Oceanography: General: Numerical Modeling (0545, 0560), Oceanography: General: Upwelling And Convergences (4964)

Scientific paper

The controlling mechanism of the seasonal cycle of surface partial pressure of CO2 (pCO2) in the central/eastern equatorial Pacific is studied using a coupled physical-biogeochemical model. The model results indicate that the individual components of physical transport of total CO2 (TCO2) in the Niño3 area are out of phase with each other such that the net TCO2 transport is an order smaller. This net transport is further nearly balanced by the biological drawdown and air-sea CO2 flux combined, resulting in a weak seasonality of surface TCO2. As a consequence, the seasonal cycle of sea surface temperature (SST) controls the surface pCO2 cycle with a maximum in boreal spring-summer and a minimum in boreal fall-winter. In turn, the seasonality of air-sea CO2 flux is largely controlled by SST and surface winds via the piston velocity of gas exchange. Perturbations to the subtle balance of TCO2 transport by dynamical processes on other timescales such as El Niño, La Niña and tropical instability waves, could induce significant change to the surface pCO2, in addition to the change due to SST variability.

Affiliated with

Also associated with

No associations

Rating

Physical control on the seasonal cycle of surface pCO2 in the equatorial Pacific does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Physical control on the seasonal cycle of surface pCO2 in the equatorial Pacific, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Physical control on the seasonal cycle of surface pCO2 in the equatorial Pacific will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1544791