Historical UW global O2 data set The previous link to the UW calibrated oxygen data set that was hosted here has been removed, because the global float oxygen data are now available through the Argo data system. Drucker, R. and S. C. Riser (2016). In situ phase-domain calibration of oxygen optodes on profiling floats, Methods in Oceanography, 17, 206-318, doi:10.1016/j.mio.2016.09.007.