Repeated hydrographic surveys across the Kuroshio and its recirculation south of Japan have been carried out by a group called ASUKA (Affiliated Surveys of the Kuroshio off Cape Ashizuri) since 1992.
Hydrographic data (CTD XCTD, XBT, and DBT) obtained from more than 155 cruises were collected.
A uniform data processing was applied to raw data from the XBT and XCTD, and salinity profiles for the XBT and DBT measurements were estimated.
The dataset, ASUKA Hydrographic Data Collection (AHDC), is publicly available through the Research Institute for Applied Mechanics, Kyushu University web site (http://www.riam.kyushu-u.ac.jp/oed/asuka/ahdc/).
