Accession Number : ADA305748

Title :   Coastally Trapped Disturbances Along the U.S. West Coast: Synoptic and Mesoscale Analysis of 9-12 June 1994.

Descriptive Note : Master's thesis,

Corporate Author : NAVAL POSTGRADUATE SCHOOL MONTEREY CA

Personal Author(s) : Oosterling, Paul S.

PDF Url : ADA305748

Report Date : SEP 1995

Pagination or Media Count : 86

Abstract : Synoptic and mesoscale analyses were made for a coastally trapped disturbance along the central California coast that occurred on 9 - 12 June 1994. Hourly sea-level pressure analyses were constructed using a Multi-Quadric interpolation technique to blend observations with synthetic observations from the National Meteorological Center mesoscale model in data-void regions over the ocean. In addition to describing the disturbance's evolution in terms of sea-level pressure changes, the 850 mb temperature change and thermal advection were analyzed to determine their influence on the initiation and propagation of the coastally trapped disturbance. Low-level thermal advection was shown to be a key mechanism in initiating the event, in the development of an off-shore low pressure center, and subsequently in changing the nature of the forcing of the disturbance from ageostrophic down-gradient flow to more nearly a response to the existing geostrophic pressure gradient. (MM)

Descriptors :   *COASTAL REGIONS, *METEOROLOGICAL PHENOMENA, *AIR WATER INTERACTIONS, *MARINE METEOROLOGY, THERMAL PROPERTIES, PRESSURE GRADIENTS, WIND, THESES, ATMOSPHERIC MOTION, CALIFORNIA, BAROMETRIC PRESSURE, GEOSTROPHIC CURRENTS, GEOSTROPHIC WIND, ADVECTION, SEA LEVEL, BOUNDARY LAYER FLOW, OFFSHORE.

Subject Categories : Meteorology
      Physical and Dynamic Oceanography

Distribution Statement : APPROVED FOR PUBLIC RELEASE