Extreme storm events, landscape denudation, and carbon sequestration: Typhoon Mindulle, Choshui River, Taiwan

Steven T. Goldsmith*, Anne E. Carey, W. Berry Lyons, Shuh Ji Kao, T. Y. Lee, Jean Chen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

We have performed the first known semicontinuous monitoring of particulate orgame carbon (POC) fluxes and dissolved Si concentrations delivered to the ocean during a typhoon. Sampling of the Choshui River in Taiwan during Typhoon Mindulle in 2004 revealed a POC flux of 5.00 × 105 t associated with a sediment flux of 61 Mt during a 96 h period. The linkage of high amounts of POC with sediment concentrations capable of generating a hyperpyenal plume upon reaching the ocean provides the first known evidence for the rapid delivery and burial of POC from the terrestrial system. These fluxes, when combined with storm-derived CO2 consumption of 1.65 × 108 mol from silicate weathering, elucidate the important role of these tropical cyclone events on small mountainous rivers as a global sink of CO2.

Original languageEnglish
Pages (from-to)483-486
Number of pages4
JournalGeology
Volume36
Issue number6
DOIs
Publication statusPublished - 2008 Jun
Externally publishedYes

Keywords

  • Chemical weathering
  • CO consumption
  • Fluxes
  • Organic carbon
  • Particulate materials

ASJC Scopus subject areas

  • Geology

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