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Proceedings Paper

Primary production enhancement by typhoon Ketsana in 2003 in western North Pacific
Author(s): Mitsuhiro Toratani
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Paper Abstract

The purpose of this works was to investigate temporal and spatial variation of chlorophyll-a concentration and sea surface temperature before and after the typhoon Ketsana passage in subtropical western North Pacific Ocean and to evaluate primary production enhancement by satellite data. Chlorophyll-a concentration kept higher level (>0.1mg/m3) for one month after typhoon Ketsana passage Maximum value of chlorophyll-a concentration was 3.5 mg/m3 that is 70 times more than a normal condition of the area in the seventh day after the passage. Sea surface temperature decreased from 30 to 22 °C. The lowest Sea surface temperature was recorded in Oct. 25 after two days the passage. Time rag was 4 days between Sea surface temperature minimum and chlorophyll-a concentration maximum. Primary production enhancement by the typhoon was estimated 727 Gg Carbon. Carbon fixation by typhoon Ketsana was estimated about 0.11% of western North Pacific's annual new production.

Paper Details

Date Published: 19 December 2008
PDF: 8 pages
Proc. SPIE 7150, Remote Sensing of Inland, Coastal, and Oceanic Waters, 715013 (19 December 2008); doi: 10.1117/12.806426
Show Author Affiliations
Mitsuhiro Toratani, Tokai Univ. (Japan)


Published in SPIE Proceedings Vol. 7150:
Remote Sensing of Inland, Coastal, and Oceanic Waters
Robert J. Frouin; Serge Andrefouet; Hiroshi Kawamura; Mervyn J. Lynch; Delu Pan; Trevor Platt, Editor(s)

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