Assessments of F16 Special Sensor Microwave Imager and Sounder Antenna Temperatures at Lower Atmospheric Sounding Channels

Figure 5

(a) FFT energy spectrum of 𝐶^Obs_𝑊 at channel 4 (54.4 GHz) during one orbit of observations on March 20, 2006. (b) Time series of 𝐶^Obs_𝑊, 𝐶¹_𝑊∼𝐶⁴_𝑊 at 54.4 GHz for the same orbit as in (a). (c) Comparisons of 𝐶^Obs_𝑊, 𝐶^Ext_𝑊 and its periodically extended warm counts at 54.4 GHz. In the figures, an orbital mean of corresponding counts has been subtracted from the warm counts in each orbit of observations.

(a)

(b)

(c)