Upwelling plumes in sagami bay and adjacent water around the Izu Islands,Japan |
| |
| Authors: | Masayuki Takahashi Isao Koike Takashi Ishimaru Toshiro Saino Ken Furuya Yoshihiko Fujita Akihiko Hattori Shun-ei Ichimura |
| |
| Affiliation: | (1) Institute of Biological Sciences, University of Tsukuba, Sakura-mura, 305 Ibaraki Pref., Japan;(2) Ocean Research Institute, University of Tokyo, Nakano, 164 Tokyo, Japan |
| |
| Abstract: | Water plumes, 20 km long or less, identified by low temperature, high salinity and high nutrient concentrations, were observed on the eastern side of Izu Islands where the Kuroshio Current or its branch flowed eastward. The T-S diagrams and the vertical profiles of oceanographic variables indicated that the water plumes resulted from the upwelling of subsurface water. A newly formed plume, characterized by a sharp temperature front and high nutrient concentrations, contained less chlorophyll than did old plumes. It is suggested that the upwelling plumes are maintained for a period long enough to allow luxuriant growth of phytoplankton. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
