This dataset contains the processed Hydrology (HYD) data collected on Courageous cruise 048. The voyage took place off south-west Western Australia during April 1979. Four hydrology transects were completed between Albany and Cape Naturaliste. This dataset has been processed and is archived within the CSIRO Marine and Atmospheric Research Data Centre in Hobart. Additional information regarding this dataset is contained in the cruise report for this voyage. Courageous on-voyage hydrology data are typically obtained from water samples collected in Nansen bottles at various depths. Parameters measured comprise some or all of the following: temperature, salinity, dissolved oxygen, phosphate, nitrate, silicate, and nitrite. For further details consult the Divisional Data Centre.