Western North Pacific tropical cyclone wind structure and structure changes

Download
Author
Fisher, Michael Robert.
Date
1996-09Advisor
III, Lester E. Carr
Elsberry, Russell L.
Metadata
Show full item recordAbstract
Subjective and objective analyses of near-surface winds are utilized to estimate tropical cyclone (TC) size over a region of the western North Pacific. An empirical outer wind profile assuming partial conservation of angular momentum is utilized to determine the radial extent of cyclonic winds, which may be defined as the TC size in four categories. The first method uses the radii of either 3O-kt or 35-kt wind in the Joint Typhoon Warning Center (JTWC) warnings during 1989-1994 to estimate the size categories each 6 h. A second subjective method based on satellite imagery has more cases of large and midget TCs than the first method. A multi-quadric interpolation (MQI) of composited wind observations over +/- 12 h is tested as a more objective method of estimating the 30-kt or 35-kt wind radii. For two case studies, these MQI-derived size estimates generally agree with the first method, although the MQI values varied more in time depending on the data distribution. It is concluded that a combination of the second and third methods could provide supporting data for estimating the outer wind profiles for the JTWC wind warnings.
Collections
Related items
Showing items related by title, author, creator and subject.
-
Multichannel 2-D power spectral estimation and applications.
El-Shaer, Hamdy Taha M. (1987-12);Spectral estimation for multiple 2-D signals by model-based methods is developed. The procedures compute the entire spectral matrix of autospectra and cross spectra for the set of 2-D signals. Spectral analysis by ... -
Development of a locomotion interface for portable virtual environment systems using an inertial/magnetic sensor-based system and a ranging measurement system
Yang, Chuan Hao (Monterey, California: Naval Postgraduate School, 2014-03);This dissertation describes the development of an integrated locomotion interface for building self-contained, portable, and immersive virtual environment (VE) systems. Such VE systems do not rely on any infrastructure ... -
Case studies of optimum filter-controller design in sampled data systems
McMichael, John Coleman; Skezas, George Christ (Monterey, California. U.S. Naval Postgraduate School, 1966-05);In this paper an investigation is made of the problem of estimating and predicting the states of a linear, discrete, time-invariant, dynamic process which is excited by Gaussian noise and where the observable states are ...