HR: 0800h
AN: OS41B-0599    [Abstracts]
TI: A preliminary report on hydrographic survey in the southwestern part of the East/Japan Sea in July 2005.
AU: * Shin, C
EM: cwshin@kordi.re.kr
AB: An oceanographic multi-disciplinary survey was achieved to investigate carbon circulation in Ulleung Basin. Physical oceanographic survey items were temperature and salinity at 34 points by a CTD and current velocity along a ship track by a VM-ADCP on R/V Eardo. Water masses were clearly classified by temperature and salinity. Surface water that appears in summer season, Tsushima Warm Current Water, East Sea Intermediate Water and East/Japan Sea Proper Water were major water masses. East Korean Warm Current that is a branch current of Tsushima Warm Current flowed northeastward separated from Korean coast at Pohang, based on synoptic analysis of horizontal thermal fronts in depths of 30~100 m. Temperature structure of horizontal at 200 m and vertical section along 37.5 degree north in latitude showed mesoscale warm eddy. Thus surface flow pattern was anti-cyclonic circulation. Below the Tsushima Warm Current Water, there was East Sea Intermediate Water that characterized by salinity minimum and oxygen maximum. Inshore side core water in the salinity minimum layer was detached from offshore side core water. This suggests that flow paths of these core waters are different from each other because of anti-cyclonic eddy in the Ulleung Basin.
DE: 4283 Water masses
DE: 4512 Currents
DE: 4532 General circulation (1218, 1222)
DE: 4536 Hydrography and tracers
SC: Ocean Sciences [OS]
MN: Fall Meeting 2005