Primary production enhancement by typhoon Ketsana in 2003 in western North Pacific

Mitsuhiro Toratani

doi:10.1117/12.806426

19 December 2008 Primary production enhancement by typhoon Ketsana in 2003 in western North Pacific

Mitsuhiro Toratani

Proceedings Volume 7150, Remote Sensing of Inland, Coastal, and Oceanic Waters; 715013 (2008) https://doi.org/10.1117/12.806426
Event: SPIE Asia-Pacific Remote Sensing, 2008, Noumea, New Caledonia

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.

Citation Download Citation

Mitsuhiro Toratani "Primary production enhancement by typhoon Ketsana in 2003 in western North Pacific", Proc. SPIE 7150, Remote Sensing of Inland, Coastal, and Oceanic Waters, 715013 (19 December 2008); https://doi.org/10.1117/12.806426

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