Sediment trap flux measurements for the Hawaii Ocean Time-Series (HOT) project from December 1988 to December 2023 at Station ALOHA

This dataset presents 35 years of particle flux measurements from Hawaii Ocean Time-Series (HOT) cruises during December 1988 to December 2023 at Station ALOHA in the Pacific Ocean north of Hawaii. Particle flux was measured at a standard reference depth using multiple cylindrical particle interceptor traps deployed on a free-floating array for approximately 60 hours during each cruise. Sediment trap design and collection methods are described in Winn et al. (1991). Passively sinking particulate matter was collected, prescreened (335 µm) to remove zooplankton and micronekton carcasses, then the sample materials analyzed for particulate carbon, nitrogen, phosphorus, silica, and mass flux.