This data is output from the Regional Ocean Modeling System (ROMS) simulations that comprise a suite of four 4D-Var Observing System Simulation Experiments (OSSEs) of the East Australian Current (EAC). The model has a horizontal resolution of 2.5-6 km in the cross shelf direction and 5 km in the along shelf direction, and 30 vertical s-levels. The model domain covers the southeastern Australia oceanic region from 25.1-41.5°S and 147.1-162.2°E, and the grid is orientated 20 degrees clockwise to be predominantly orientated alongshore. These experiments test the impact on the state estimate and representation of the EAC in the presence of subsurface temperature (XBT) observations. Each experiment has varying observation repeat frequencies: quarterly, monthly, fortnightly and weekly. This dataset contains the temperature variable (and associated coordinates and dimensions) for the period Jan 2012 to Jan 2013. All variables in the netcdf are described with metadata. Some data has been removed to reduce file size but full datasets can be obtained by contacting the authors. The ROMS configuration files (header and in files) and the forcing files are linked in the associated dataset (https://doi.org/10.26190/unsworks/24146).

The models (free-running and data assimilating) used to produce this output are described in Gwyther, D., Kerry, C., Roughan, M., and Keating, S. R. et al (2022) and Gwyther, D., Keating, S. R., Kerry, C., and Roughan, M. (submitted). The free-running simulation is similar to presented in https://doi.org/10.26190/TT1Q-NP46, while the data assimilating model is similar to that presented in: https://doi.org/10.26190/5ebe1f389dd87