Tuesday, June 12, 2012

First round of various sounding results

So far, the results of spaghetti plot and composite soundings have shown that there is considerable variance in the height and amplitude of pertinent features. Averaging smooths these features down to essentially a constant lapse rate sounding. From the previous tests, the primary inversion layer is generally found near and above 2000m, which can be seen in the spaghetti plot.

To supplement the average, I also plotted the standard deviation of the temperature at each level. This has interesting results. The spread of the weak cases generally increases with height, while the strong cases actually significantly converge around -16.5C at 3000m, at which point the standard deviation drops to near just one degree C. This is around the height that an inversion or stable layer is most likely to be present, and thus the lapse rate is very small or negative.

The plots below are for 18 hours from the time of the event report. Other times are being analyzed now, and show similar results.



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