TB EDF correction time series

• Solid curves indicate Afternoon satellites, Dotted curves are Morning satellites.
• Dotted curve on lowest three figures is the evening pass. This is the time series that the other three passes are adjusted and is the result after applying the EDF adjustment. You can note that some EDF- adjusted time series still contains artificial jumps between satellite periods. While the morning satellites are more stable and have smaller delta Tb differences, they do have significant differences for some channels. To eliminate the bias found in the EDF-adjusted time series, a simple mean bias correction was applied. The solid curve on these figures is the EDF-adjusted TBs after a bias correction. The resulting time series eliminates the jumps seen in the EDF-adjusted (dotted) time series, but reduces any trends in the overall time series. For example, Channel 2 60N-60S time series shows less negative trend after bias correction. Bias correction may not be necessary for some of the stable channels, such as channel 2, where the intersatellite biases are quite small.
• Channel 10 changed central frequencies in the middle of the time series. TN,N6,N7,N8,N9,N10,and N12 are at 1218 cm-1, whereas N11,N14, and N15 are at 796 cm-1.
• Channel 12 changed frequencies for N15 to 1533 cm-1 from 1480 cm-1 for the other satellites. This caused temperatures to be ~10 K cooler than the previous satellites.