Oceanographic data collected during the EX1503L2 (Tropical Exploration (Mapping II)) expedition on the NOAA Ship OKEANOS EXPLORER in the North Pacific Ocean from May 16, 2015 - June 24, 2015 (NCEI Accession 0129881)

During EX-15-03L2, multibeam data was collected 24 hours a day and XBT casts were conducted at an interval defined by prevailing oceanographic conditions, but not to exceed 6 hours. Additionally, EK 60 (single beam) and sub-bottom profile data was collected 24 hours per day. Data was only collected in foreign waters where clearance was granted. If no permit was obtained, all data collection systems were shut down in those foreign waters. All multibeam data was fully processed according to standard onboard procedures and was archived with the National Geophysical Data Center.