Spatiotemporal characteristics of interannual temperature variations in the Tsushima Strait |
| |
| Authors: | Tomoharu Senjyu Sigeaki Matsui In-Seong Han |
| |
| Institution: | (1) National Fisheries University, 2-7-1 Nagata-Honmachi, Shimonoseki 759-6595, Japan;(2) National Research Institute of Fisheries Science, Fisheries Research Agency, 2-12-4 Fukuura, Kanazawa Yokohama, 236-8648, Japan;(3) Research Institute for Applied Mechanics, Kyushu University, 6-1 Kasuga-kouen, Kasuga Fukuoka, 816-8580, Japan;(4) Hydrospheric Atmospheric Research Center, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan;(5) Atmosphere and Ocean Research Institute, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa 277-8564, Japan;(6) Department of Mechanical and Environmental Informatics, Graduate School of Information Science and Engineering, Tokyo Institute of Technology, 2-12-1, O-okayama, Meguro-ku Tokyo, 152-8552, Japan |
| |
| Abstract: | Spatiotemporal characteristics of interannual temperature variations in the Tsushima Strait are investigated on the basis
of historical hydrographic data applying the same procedures as Senjyu et al. (2006). Empirical orthogonal function (EOF) analysis revealed that the most energetic mode of variation (the EOF first mode),
which accounts for about 31.5% of the total variance, is the in-phase temperature change for the entire strait. The wintertime
temperature variation described by the first mode is associated with the wintertime heat flux in the northern East China Sea,
while they are poorly correlated in other seasons. The large standard deviation in the time coefficient of the first mode
in August suggests a relationship with the horizontal heat advection in summer in the northern East China Sea. On the other
hand, the EOF second mode, which explains about 12.6% of the total variance, is associated with the stratification and baroclinicity
in the strait. The time coefficient of the EOF second mode negatively correlates with the baroclinic volume transport through
the strait in summer. Comparison of temporal variations among the leading EOF modes for temperature and salinity shows no
significant correlations. This indicates that the principal modes of variation in temperature and salinity vary independently
within an interannual timescale. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
