A hydrographic survey was conducted in the North Pacific Ocean aboard the UNOLS vessel R/V Melville from 21 March 2013 - 5 May 2013. A total of 159 rosette/CTD/LADCP stations were occupied on a transect running roughly along latitude 30 deg.N. CTD casts extended to within 10 meters of the seafloor and up to 36 water samples were collected throughout the water column. CTDO (conductivity, temperature, pressure, oxygen), transmissometer, fluorometer, and LADCP (lowered acoustic Doppler current profiler) electronic data; rosette water samples; and underway shipboard ADCP and carbon dioxide (CO2) measurements were collected during the survey.

Carbon Data
CTD and other hydrographic data
Section designation: P02
Chief Scientists, Leg 1: Dr. Jim Swift and Dr. Sachiko Yoshida
Chief Scientists, Leg 2: Dr. Sabine Mecking and Dr. Gunnar Voet
Dates: 2013 March 21 to 2013 June 01
Ship: R/V Melville
Ports of call: Yokohama, Japan - Honolulu, HI - San Diego, CA
Number of stations: 159
Geographic boundaries: 29.97°N to 32.715°N by 133.03°E to 117.16°W