Oxygen isotope and salinity data from JR17003 CTD Niskin bottle samples, January-February 2018.

This dataset contains the oxygen isotope (O-18) and salinity data from water samples collected from Niskin bottles on the CTD rosette on cruise JR17003, the 2018 repeat of the A23 section from the shelf break southeast of South Georgia, south through the eastern Scotia Sea, and into the northern Weddell Sea. In addition to the stations on the A23 section, four stations were occupied on the West Antarctic Peninsula, one station with two casts near the South Orkney Islands, 23 stations in King Haakon Bay and on the surrounding continental shelf (one of which included O-18 samples), and one cast was made near the BAS long-term mooring site P3 northwest of South Georgia.