Nutrient supply in the Southern East China Sea after Typhoon Morakot
Chou, Wen Chen
Gawarkiewicz, Glen G.
MetadataShow full item record
Recent studies show that typhoons have profound effects on phytoplankton assemblages along their tracks, but it is difficult to quantitatively estimate nutrient supply after a typhoon's passage due to a lack of nutrient information before and after the arrival of a typhoon. During the passage of Typhoon Morakot (July 22 to Aug. 26, 2009), we conducted pre- and post-typhoon field cruises to study nutrient supply in the Southern East China Sea (SECS). The results showed nitrate and phosphate supplies to the water column in the SECS after the typhoon's passage were 5.6 × 1011 g-N/day and 7.8 × 1010 g-P/day which were significantly higher than those before the typhoon occurred (nitrate supply = 1 × 109 g-N/day, phosphate supply = 1.6 × 108 g-P/day). We conclude from this data, and after consulting the available physical data, that the highest nitrate concentration was caused by strong upwelling and/or vertical mixing, and input of nutrient-replete terrestrial waters. The nitrate and phosphate input related to the passage of Typhoon Morakot can account for approximately 86% and 87% of summer nitrate and phosphate supplies to the southern East China Sea.
Author Posting. © Sears Foundation for Marine Research, 2013. This article is posted here by permission of Sears Foundation for Marine Research for personal use, not for redistribution. The definitive version was published in Journal of Marine Research 71 (2013): 133-149, doi:10.1357/002224013807343425.
Showing items related by title, author, creator and subject.
Hung, Chin-Chang; Chung, Chih-Ching; Gong, Gwo-Ching; Jan, Sen; Tsai, Ya-Ling; Chen, Kuo-Shu; Chou, Wen Chen; Lee, Ming-An; Chang, Yi; Chen, Meng-Hsien; Yang, Wen-Rong; Tseng, Chiung-Jung; Gawarkiewicz, Glen G. (Sears Foundation for Marine Research, 2013-11-01)
Duda, Timothy F.; Lynch, James F.; Newhall, Arthur E.; Wu, Lixin; Chiu, Ching-Sang (IEEE, 2004-10)We present analyses of fluctuations seen in acoustic signals transmitted by two 400-Hz sources moored as part of the ASIAEX 2001 South China Sea (SCS) experiment. One source was near the bottom in 350-m deep water 31.3 km ...
Dahl, Peter H.; Zhang, Renhe; Miller, James H.; Bartek, Louis R.; Peng, Zhauhui; Ramp, Steven R.; Zhou, Ji-Xun; Chiu, Ching-Sang; Lynch, James F.; Simmen, Jeffrey A.; Spindel, Robert C. (IEEE, 2004-10)The Asian Seas International Acoustics Experiment (ASIAEX) included two major field programs, one in the South China Sea and the other in the East China Sea (ECS). This paper presents an overview of research results from ...