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Data is binned to 1 m depth bins with the middle of each bin being an integer depth (ie. bin1 includes 0.5 m <= x < 1.5 m, bin 2 includes 1.5 <= x < 2.5, etc.). Any data with QAQC flag value 3 or 4 are not included in the bin averages, as noted in the scalar data product and Quality Assurance Quality Control documentation. If the number of data points averaged in a bin is >= 70% of the expected (total) number of data points for the bin, then the data is given QAQC flag value of 7 to indicate averaging, otherwise a value of 3 is given indicating probably bad data. Each 1 m depth bin is then interpolated to a time grid. The time grid is automatically determined by the amount of data requested for best results. For <= 31 days, data is interpolated to a 5 minute grid; for > 31 days but <= 124 days, data is interpolated to a 20 minute grid; for > 124 days, data is interpolated to a 1 hour grid. Depth bins with QAQC flag values of 3 and 4 are not included in the interpolation. Depth bins are linearly interpolated to the time grid and given QAQC flag values of 8 to indicate interpolation. Cases where gaps in data greater than 8 hours exist are not interpolated over and instead replaced with NaN, with QAQC flag values of 9 indicating missing data. Any previous segments of missing data (QAQC flag 9) or bad data (QAQC flag 3 or 4) that span less than 8 hours will be interpolated over (though the bad data is not included in the interpolation), and subsequently given QAQC flag value of 8. Density contours are overlaid and labeled on each plot. Grey dashed lines at the top of the plot indicate times when a cast occurred. The example plot shown above, and the PDF example, both exhibit extrapolation, as the time range is too short to contain enough VPS profiles through the water column to fill out the plot. The more profiles in the plot, the smoother and more accurate it will be.
Oceans 23.0 API filter: dataProductCode=TSSPPGD
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This data is available as PNG or PDF images, plus MAT and netCDF data files.
Oceans 23.0 API filter: extension={png,pdf,mat,netcdf}
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This data is available as MAT or netCDF data products.
MAT Files
Oceans 23.0 API filter: extension=mat
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NETCDF Files
Oceans 23.0 API filter: extension=mat
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Example NetCDF file: 61
Oceans 23.0 API filter: extension=nc
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The newly calculated ‘_aligned’ sensors do not have unique sensor ID’s. Therefore, they cannot be explicitly searched for in Oceans 23.0 and will not show up in Cast Scalar Profile plots. They will however show up in Time Series Scalar Profile plots and both MAT or netCDF data files, but only if the user selects data that includes both temperature and conductivity sensors.
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