In situ dataset for the West Atlantic cruise, including Sargassum raft characterization, station metadata and availability of satellite imagery.

Satellite availability is reported as A = Available; NA = Not available; BD = Bad data (cloud, glint, straylight, etc.); for OLCI and MSI, first symbol refers to availability on the day of the station and symbol in brackets to availability at +/– 1 day (OLCI) and +/– 3 days (MSI).