Accession Number:

ADA052659

Title:

Structure of Synoptic-Scale Waves in the Tropical Pacific during July-December 1974-1976.

Descriptive Note:

Master's thesis,

Corporate Author:

NAVAL POSTGRADUATE SCHOOL MONTEREY CALIF

Personal Author(s):

Report Date:

1977-12-01

Pagination or Media Count:

38.0

Abstract:

Composite wave structures, sea-surface temperatures SST, and mean zonal winds are studied for the period July through December over the three consecutive years 1974, 1975 and 1976. These three years were found to possess an average SST anomaly distribution, a cold anomaly pattern and a warm anomaly pattern respectively. Radiosonde data for the six month period for each year and each of the six locations Koror, Yap, Truk, Ponape, Kwajalein and Majuro were analyzed to derive composite wave descriptions of meridional and zonal wind components, temperature and specific humidity. The basic results such as periodicity and structural tilt were generally in agreement with previous research. Combining the SST data, mean zonal flow and wave composites leads to some new insights into the effects of the tropical SST on the semi-permanent Walker circulation and transient easterly waves. Results indicate that the east to west oscillation of the Walker circulation may be directly related to the tropical eastern Pacific SST.

Subject Categories:

  • Atmospheric Physics
  • Meteorology
  • Physical and Dynamic Oceanography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE