Naval Postgraduate School

About: Naval Postgraduate School is a education organization based out in Monterey, California, United States. It is known for research contribution in the topics: Tropical cyclone & Boundary layer. The organization has 5246 authors who have published 11614 publications receiving 298300 citations. The organization is also known as: NPS & U.S. Naval Postgraduate School.

Northwestward-Propagating Wave Patterns over the Tropical Western North Pacific during Summer

Abstract: The possible relationship between northwestward-propagating wave disturbances and tropical cyclones over the tropical western North Pacific during summer is studied using data assimilated by the navy's global model during May–September 1989–91. A multiple-set canonical correlation (MCC) analysis is applied to the 850-hPa meridional (v) component over a core domain covering the western Pacific. The analysis seeks the maximal geometrically averaged correlation between 12 consecutive twice-daily fields. Two MCC components, with a 90° phase difference and comparable variances that combine to nearly one-third of the total variance, describe the northwestward-propagating pattern with a period near 8–9 days. Upstream of this steady northwestward-propagating pattern there is a weaker, westward propagation along 5°N that may be traced back to 170°E. The surface pressure cell advancing east of the Philippines is consistent with low-level winds for a circulation in gradient wind balance. It has a zonal wave...

NPSNET-V. A new beginning for dynamically extensible virtual environments

Abstract: At the Naval Postgraduate School (NPS) we, like others in the collaborative VE community, have extolled the virtues of persistent online virtual worlds for years. We previously addressed the infrastructure requirements of a large-scale, persistent online virtual world: runtime extensibility of both content and applications; scalability in world complexity and number of participants; and composability of heterogeneous content and applications. We follow those arguments with the first publication describing NPSNET-V.

Rossby Waves in Zonally Opposing Mean Flow: Behavior in Northwest Pacific Summer Monsoon

Abstract: The interactions between monsoon circulations and tropical disturbances in the Northwest Pacific, where the low-level mean flow is westerly in the west and easterly in the east, are studied with a barotropic model. The authors’ model results suggest that the scale contraction by the confluent background flow, the nonlinear dynamics, the β effect, and the large-scale convergence are important for the energy and enstrophy accumulation near the region where the zonal flow reverses. The energy/enstrophy accumulation can be maintained with a continuous Rossby wave emanation upstream. The largest accumulation occurs when the emanating zonal wavelength is around 2000 km. Longer Rossby waves experience less scale contraction and nonlinear effects while shorter Rossby waves cannot hold a coherent structure against dispersive effects. The nonlinear energy/enstrophy accumulation mechanism is significantly different from previous linear energy accumulation theories. In the linear theories this is primarily a...

Principles of Programming Languages: Design, Evaluation, and Implementation

Abstract: PREFACE Concept Directory I. History, Motivation, and Evaulation II. Design and Implementation III. Principles IV. Implementation INTRODUCTION 1. The Beginning: Pseudo-Code Interpreters 1.1 History and Motivation 1.2 Design of a Pseudo-Code 1.3 Implementation 1.4 Phenomenology of Programming Languages 2. Emphasis on Efficiency: FORTRAN 2.1 History and Motivation 2.2 Design: Structural Organization 2.3 Design: Control Structures 2.4 Design: Data Structures 2.5 Design: Name Structures 2.6 Design: Syntactic Structures 2.7 Evaluation and Epilog 3. Generality and Hierarchy: ALGOL-60 3.1 History and Motivation 3.2 Design: Structural Organization 3.3 Design: Name Structures 3.4 Design: Data Structures 3.5 Design: Control Structures 4. Syntax and Elegance: ALGOL-40 4.1 Design: Syntactic Structures 4.2 Descriptive Tools: BNF 4.3 Design: Elegance 4.4 Evaluation and Epilog 5. Return to Simplicity: PASCAL 5.1 History and Motivation 5.2 Design: Structural Organization 5.3 Design: Data Structures 5.4 Design: Name Structures 5.5 Design: Control Structures 5.6 Evaluation and Epilog 6. Implementation of Block Structured Languages 6.1 Activation Records and Context 6.2 Procedure Call and Return 6.3 Display Method 6.4 Blocks 6.5 Summary 7. Modularity and Data Abstraction: ADA 7.1 History and Motivation 7.2 Design: Structural Organization 7.3 Design Data Structures and Typing 7.4 Design: Name Structures 8. Procedures and Concurrency: ADA 8.1 Design: Control Structures 8.2 Design: Syntactic Structures 8.3 Evaluation and Epilog 9. List Processing: LISP 9.1 History and Motivation 9.2 Design: Structural Organization 9.3 Design: Data Structures 10. Functional Processing: LISP 10.1 Design: Control Structures 10.2 Design: Name Structures 10.3 Design: Syntactic Structures 11. Implementation of Recursive List-Processors: LISP 11.1 Recursive Interpreters 11.2 Storage Reclamation 11.3 Evaluation and Epilog 12. Object-Oriented Programming: SmallTalk 12.1 History and Motivation 12.2 Design: Structural Organization 12.3 Design: Classes and Subclasses 12.4 Design: Objects and Message Sending 12.5 Implementation: Classes and Objects 12.6 Design: Object-Oriented Extensions 12.7 Evaluation and Epilog 13. Logic Programming: Prolog 13.1 History and Motivation 13.2 Design: Structural Organization 13.3 Design: Data Structures 13.4 Design: Control Structures 13.5 Evaluation and Epilog 14. Principles of Language Desing 14.1 General Remarks 14.2 Principles BIBLIOGRAPHY INDEX