Ahmet Öztopal, Albero Mugnai, Daniele Casella, Marco ... - H-SAF

Oxigen Band Channels pdfs Over LandOccourrence0.30.250.20.150.10.05060 80 100 120 140 160 180 200 220 240 260 280 300Brightness Temperature (K)Ch 50.300 HCh 52.800 HCh 53.596 HWater Vapour Band Channels pdfs Over OceanOccourrence0.160.140.120.10.080.060.040.02060 80 100 120 140 160 180 200 220 240 260 280 300Brightness Temperature (K)Ch 183.311 HCh 183.313 HCh 183.317 HFigure 5.5. PDFs of the simulated TBs for the three lower SSMIS channels in the 50-60GHz oxygen band over land (top) and for the three SSMIS channels in the 183GHz water vapor line over ocean (bottom).5.1.3. Comparison of Measured and Simulated Brightness TemperaturesIn this figure (Figure 5.6), different colors are employed for the indication of thedensity concerning two databases around each 19-37 GHz “point”. They are in terms ofthe log-occurrences at all 19-37 GHz couples as shown in the color bar. The simulationsdatabase are more consistent with the measurements apart from the long tail in thesimulations (especially at 19 GHz).17