| タイトル | Can Asian Dust Trigger Phytoplankton Blooms in the Oligotrophic Northern South China Sea? |
| 本文（外部サイト） | http://hdl.handle.net/2060/20140011866 |
| 著者（英） | Tsay, Si-Chee; Huang, Shih-Jen; Lin, Neng-Huei; Sayer, Andrew M.; Hsu, Nai-Yung Christina; Wang, Sheng Hsiang; Lau, William K. M. |
| 著者所属（英） | NASA Goddard Space Flight Center |
| 発行日 | 2012-03-15 |
| 言語 | eng |
| 内容記述 | Satellite data estimate a high dust deposition flux (approximately 18 g m(exp-2 a(exp-1) into the northern South China Sea (SCS). However, observational evidence concerning any biological response to dust fertilization is sparse. In this study, we combined long-term aerosol and chlorophyll-a (Chl-a) measurements from satellite sensors (MODIS and SeaWiFS) with a 16-year record of dust events from surface PM10 observations to investigate dust transport, flux, and the changes in Chl-a concentration over the northern SCS. Our result revealed that readily identifiable strong dust events over this region, although relatively rare (6 cases since 1994) and accounting for only a small proportion of the total dust deposition (approximately 0.28 g m(exp-2 a(exp-1), do occur and could significantly enhance phytoplankton blooms. Following such events, the Chl-a concentration increased up to 4-fold, and generally doubled the springtime background value (0.15 mg m(exp-3). We suggest these heavy dust events contain readily bioavailable iron and enhance the phytoplankton growth in the oligotrophic northern SCS. |
| NASA分類 | Geosciences (General) |
| レポートNO | GSFC-E-DAA-TN9217 |
| 権利 | Copyright, Distribution as joint owner in the copyright |
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