2018-2019 USAP Field Season
High-resolution underway air-sea observations in Drake Passage for climate science
Dr. Janet Sprintall
Project Web Site:
Supporting Stations: ARSV Laurence M. Gould
In collaboration with Chereskin (O-217-L), this project continues a long-term study of ocean properties and variability in the Antarctic Circumpolar Current (ACC) by repeat transects across the Drake Passage from Punta Arenas, Chile to Palmer Station. This aspect of the project measures the seasonal to interannual variability of upper-ocean temperature and geostrophic transport through the Drake Passage with closely spaced eXpendable BathyThermograph (XBT) deployments.
Field Season Overview
ARSV Laurence M. Gould (LMG) personnel and passenger volunteers will hand-launch about 70 XBTs at predetermined locations on each of six Drake Passage crossings of the LMG. Salinity bottle samples will also be collected at various sites. This bottle data will be used to calibrate the underway thermosalinograph (TSG) data.