An evaluation of 700 mb aircraft reconnaissance data for selected northwest Pacific tropical cyclones
Dunnavan, George Milton
MetadataShow full item record
The 700 mb aircraft reconnaissance data for 25 selected northwest Pacific tropical cyclones were analyzed and compared with similar data for Atlantic tropical cyclones. Correlations of observed winds and winds calculated from the height gradient indicated that the cyclostrophic equation provided a very good approximation of the observed winds, although the root mean square and bias errors suggested that a gradient wind expression was a slightly better estimate. A wind-radius relationship evaluated by Shea and Gray (1972) for Atlantic cyclones was shown to apply very well for this data set also. Based on the surface pressure-equivalent potential temperature relationship noted by Malkus and Riehl (1960), it is proposed that periods of rapid/explosive deepening are related to the inward transport to the eyewall of "pulses" of high equivalent potential temperature air. The evaluation of the aircraft reconnaissance data from four super typhoons suggests, but does not provide conclusive proof that such pulses do exist.
Approved for public release; distribution is unlimited
Showing items related by title, author, creator and subject.
Richardson, Jonathon J. (Monterey, California: Naval Postgraduate School, 2013-09);This thesis developed behaviorally anchored-rating scales (BARS) for use in evaluating Marine Corps small-units (SUs) during live and virtual decision-making (DM) training. Currently, the Marine Corps does not mandate the ...
Martinez, T.; Agrawal, B.N. (2008);This paper discusses two optical beam control testbeds developed at the Spacecraft Research and Design Center, Naval Postgraduate School, to evaluate and develop control techniques for jitter and adaptive optics control. ...
Barrett, Christopher J. (Monterey, CaliforniaNaval Postgraduate School, 2009-09);Test and evaluation is incorporated throughout both the systems engineering and Department of Defense system acquisition processes. It is the mechanism for accomplishing verification in the systems engineering process and ...