@article{oai:ir.kagoshima-u.ac.jp:00010957, author = {HIGASHI, Masataka and UCHIYAMA, Masaki and HABANO, Akimasa and AZUMA, Takafumi and FUKUDA, Ryuji and ARITA, Youichi and MAKINO, Fumihiro}, journal = {鹿児島大学水産学部紀要=Memoirs of Faculty of Fisheries Kagoshima University}, month = {2016-10-31}, note = {The CTD observations were carried out along 134°E from 12°N to 30°N in the northwestern part of the North Pacific in September’s of 2003 and 2009. The surface layers warmer than 27.5℃ were observed from 12°N to 27°N in 2003 and observed from 12°N to 22°N in 2009. The present paper aims to comparing the September’s hydrographic conditions for the two years. The subtropical Mode Water occupied the subsurface layer between 200m and 400m depths in the region between 18°N and 24°N for 2003, while in that between 18°N and 26°N for 2009. The North Equatorial Current, which is identified by the downward slope of isotherms toward the south, was observed north of 17°N in 2003 while north of 15°N in 2009. The saline water higher than 34.8 psu occupied the subsurface layer between 100 m and 250 m depths in the almost whole section in 2003, whereas only in the region north of 21°N in 2009. The halocline below the subsurface saline water, was identified between 34.5 psu and 34.7 psu in the entire sections for both the years. The intermediate water fresher than 34.2 psu occupied within the depths from 550 m to 850 m in the region between 18°N and 27°N in 2003, but the depths from 550 m to 750 m in the region between 19°N and 27°N in 2009.}, pages = {1--9}, title = {The Oceanographic Conditions along 134°E from 12°N to 30°N in September, 2003 and 2009}, volume = {59}, year = {} }