Case Studies of Tropical Cyclones and Phytoplankton Blooms over Atlantic and Pacific Regions

Earth Interactions

Ashley M.Merritt-Takeuchi¹ 

关键词: Tropical cyclones;    Phytoplankton;    Sea surface temperature;   

DOI  :  10.1175/2013EI000517.1

学科分类：地球科学(综合)

来源: American Geophysical Union

【 摘 要 】

AbstractThis study investigates phytoplankton blooms following the passage of tropical cyclones in the Atlantic and Pacific Ocean basins. The variables of sea surface temperature (SST), chlorophyll (Chl-a), precipitation, and storm surface winds were monitored for two case studies, Typhoon Xangsane (2006) and Hurricane Earl (2010). Strong near-surface wind from tropical cyclones creates internal friction, which causes deep nutrient enriched waters to displace from the bottom of the ocean floor up toward the surface. In return, the abundance of upwelled nutrients near the surface provides an ideal environment for the growth of biological substances such as chlorophyll and phytoplankton. The inverse correlation coefficients of SST and Chl-a for this study are −0.67 and −0.26 for Xangsane and Earl, respectively. This suggests that, regardless of ocean basin, changing sea surface temperature and chlorophyll concentrations can be correlated to various characteristics of tropical cyclones including precipitatio...

【 授权许可】

Unknown