Influence of air-sea transfer velocity and average timescale on the estimation of air-sea CO<sub>2</sub> flux

SONG Zhaoyang; ZHAO Dongliang; ZHANG Yuming

doi:10.3969/j.issn.0253-4193.2013.04.009

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SONG Zhaoyang, ZHAO Dongliang, ZHANG Yuming. Influence of air-sea transfer velocity and average timescale on the estimation of air-sea CO2 flux[J]. Haiyang Xuebao, 2013, 35(4): 72-79. doi: 10.3969/j.issn.0253-4193.2013.04.009

Citation:

SONG Zhaoyang, ZHAO Dongliang, ZHANG Yuming. Influence of air-sea transfer velocity and average timescale on the estimation of air-sea CO₂ flux[J]. Haiyang Xuebao, 2013, 35(4): 72-79. doi: 10.3969/j.issn.0253-4193.2013.04.009

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Influence of air-sea transfer velocity and average timescale on the estimation of air-sea CO₂ flux

doi: 10.3969/j.issn.0253-4193.2013.04.009

1.
Key Laboratory of Physical Ocenography Ministry of Education, Ocean University of China, Qingdao 266100, China
2.
National Marine Environmental Monitoring Center, Dalian 116023, China

Received Date: 2012-05-07
Rev Recd Date: 2012-09-01

Abstract

Abstract

Based on CCMP data, ECMWF wave data and the latest CO₂ data, we made an estimation of air-sea CO₂ flux by using 2 bi-parameter gas transfer velocity formulas and 4 gas transfer velocity formulas parameterized by wind speed. The former result is 30% larger than the latter one. On the whole, bi-parameter formulas strengthen both sink and source of CO₂ in the ocean. Extended research on the influence of average time-scale on estimation of air-sea CO₂ flux was made. Result of scaler averaging method is much more stable than that of vector averaging method.Average global sea wind speed was enlarging during 1988-2009, while the uptake of CO₂ didn't change much.In the past 20 years, the uptake ability of global ocean declined．
- gas transfer velocity,
- air-sea CO₂ flux,
- average time scale

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References(29)

References

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