The effect of typhoon on particulate organic carbon flux in the southern East China Sea

C. C. Hung, G. C. Gong, W. C. Chou, C. C. Chung, M. A. Lee, Yi Chang, H. Y. Chen, S. J. Huang, Y. Yang, W. R. Yang, W. C. Chung, W. C. Li, E. Laws

Research output: Contribution to journalArticle

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Abstract

Severe tropical storms play an important role in triggering phytoplankton blooms, but the extent to which such storms influence biogenic carbon flux from the euphotic zone is unclear. In 2008, typhoon Fengwong provided a unique opportunity to study the in situ biological responses including phytoplankton blooms and particulate organic carbon fluxes associated with a severe storm in the southern East China Sea (SECS). After passage of the typhoon, the sea surface temperature (SST) in the SECS was markedly cooler (∼25 to 26 °C) than before typhoon passage (∼28 to 29 °C). The POC flux 5 days after passage of the typhoon was 265 ± 14mg Cm-2 d-1, which was ∼1.7-fold that (140-180 mg C m-2 dd-1) recorded during a period (June-August, 2007) when no typhoons occurred. A somewhat smaller but nevertheless significant increase in POC flux (224-225 mg C mg C m-2 d-1) was detected following typhoon Sinlaku which occurred approximately 1 month after typhoon Fengwong, indicating that typhoon events can increase biogenic carbon flux efficiency in the SECS. Remarkably, phytoplankton uptake accounted for only about 5% of the nitrate injected into the euphotic zone by typhoon Fengwong. It is likely that phytoplankton population growth was constrained by a combination of light limitation and grazing pressure. Modeled estimates of new/export production were remarkably consistent with the average of new and export production following typhoon Fengwong. The same model suggested that during non-typhoon conditions approximately half of the export of organic carbon occurs via convective mixing of dissolved organic carbon, a conclusion consistent with earlier work at comparable latitudes in the open ocean.

Original languageEnglish
Pages (from-to)3007-3018
Number of pages12
JournalBiogeosciences
Volume7
Issue number10
DOIs
Publication statusPublished - 2010 Oct 14

Fingerprint

East China Sea
typhoon
particulate organic carbon
carbon flux
euphotic zone
algal blooms
carbon
phytoplankton
typhoons
dissolved organic carbon
coolers
surface temperature
population growth
oceans
nitrates
grazing
algal bloom
effect
sea
grazing pressure

All Science Journal Classification (ASJC) codes

  • Ecology, Evolution, Behavior and Systematics
  • Earth-Surface Processes

Cite this

Hung, C. C., Gong, G. C., Chou, W. C., Chung, C. C., Lee, M. A., Chang, Y., ... Laws, E. (2010). The effect of typhoon on particulate organic carbon flux in the southern East China Sea. Biogeosciences, 7(10), 3007-3018. https://doi.org/10.5194/bg-7-3007-2010
Hung, C. C. ; Gong, G. C. ; Chou, W. C. ; Chung, C. C. ; Lee, M. A. ; Chang, Yi ; Chen, H. Y. ; Huang, S. J. ; Yang, Y. ; Yang, W. R. ; Chung, W. C. ; Li, W. C. ; Laws, E. / The effect of typhoon on particulate organic carbon flux in the southern East China Sea. In: Biogeosciences. 2010 ; Vol. 7, No. 10. pp. 3007-3018.
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Hung, CC, Gong, GC, Chou, WC, Chung, CC, Lee, MA, Chang, Y, Chen, HY, Huang, SJ, Yang, Y, Yang, WR, Chung, WC, Li, WC & Laws, E 2010, 'The effect of typhoon on particulate organic carbon flux in the southern East China Sea', Biogeosciences, vol. 7, no. 10, pp. 3007-3018. https://doi.org/10.5194/bg-7-3007-2010

The effect of typhoon on particulate organic carbon flux in the southern East China Sea. / Hung, C. C.; Gong, G. C.; Chou, W. C.; Chung, C. C.; Lee, M. A.; Chang, Yi; Chen, H. Y.; Huang, S. J.; Yang, Y.; Yang, W. R.; Chung, W. C.; Li, W. C.; Laws, E.

In: Biogeosciences, Vol. 7, No. 10, 14.10.2010, p. 3007-3018.

Research output: Contribution to journalArticle

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AU - Hung, C. C.

AU - Gong, G. C.

AU - Chou, W. C.

AU - Chung, C. C.

AU - Lee, M. A.

AU - Chang, Yi

AU - Chen, H. Y.

AU - Huang, S. J.

AU - Yang, Y.

AU - Yang, W. R.

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AU - Li, W. C.

AU - Laws, E.

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