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<br />Thermodynamic changes caused by mesoscale lifting were simulated in <br />a one-dimensional, quasi-time-dependent numerical cloud model (MESOCU). <br />A series of model i ng experiments was ma.de to detenni ne the effect of <br />lifting on the release of available potential instability using the <br />aircraft-observed vertical motion. Above the two aircraft flight <br />levels, four different lifting profiles were tested to detennine the <br />relative importance of the shape of a lifting profile (figure 10). <br /> <br />These profiles were used to simulate thennodynamic response for the <br />1200 g.m.t. and 1800 g.m.t. soundings at Goodland on August 19, 1977. <br />The results indicate that the shape of the lifting profile and its <br />vertical extent are important (see table 2). <br /> <br />VIII. Conclusions <br /> <br />Remote sens ing systems can provi de very useful quant itat ive real <br />time infonnation regarding the structur'e of gravity waves. Combina- <br />tion of information from remote sensing systems on satellites with <br />those on the earth will provide detailed infonnation on the location, <br />motion, and amplitude of gravity waves. Satellite observations <br />detect the response of clouds to 1 arge-scal e gravity waves, wher'eas <br />acoustic sounders, LIDAR, and FM-CW radar provide detailed high- <br />resol ution observations of waves in the pl anetary boundary 1 ayer'. <br />These surface systems provide measurements of wave amplitude, <br />wavelength, period, and phase speed which may be used to initialize <br /> <br />12 <br />