The relationship between sea breeze forcing and hf radar-derived surface currents in Monterey Bay
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Authors
Tukenmez, Emre
Subjects
Sea Breeze
Coastal jet
HF Radar derived surface currents
Harmonic analysis
Coastal jet
HF Radar derived surface currents
Harmonic analysis
Advisors
Paduan, Jeffrey D.
Date of Issue
2014-06
Date
June 2014
Publisher
Monterey, California. Naval Postgraduate School
Language
Abstract
Despite the importance of sea breeze, only Hendrickson and MacMahanâ s research has been done to determine sea breeze effects in Monterey Bay; other than that not much research has been done. In this thesis, CODAR SeaSonde radars are used to map the surface current in Monterey Bay. Temperature, wind speed and wind direction are analyzed for five locations to establish the algorithm for determining the sea breeze days in Monterey Bay. Harmonic analysis is used to understand the relationship between sea breeze and high frequency (HF) radar-derived surface currents. To explain the cause of the peaks and lows in the amplitude of the sea breeze as shown by the harmonic analysis, coastal jet influences, boundary layer height changes, temperature gradient variations and cloudiness are investigated. Current patterns clearly respond to changing sea breeze strength with the strongest amplitudes corresponding to days with fully developed coastal jets. No coastal jet, lower amplitude sea breeze days, however, appear to have a more classical response in terms of wind direction changes. It is understood that rapid decrease of the amplitude of sea breeze in harmonic analysis is the day with sea breeze including obvious wind shifting, and rapid increase is the day when strong synoptic effect is seen obviously over the region.
Type
Thesis
Description
Supplementary materials (animations) for this document may be found here: https://calhoun.nps.edu/handle/10945/41602
Series/Report No
Department
Oceanography
Organization
Identifiers
NPS Report Number
Sponsors
Funder
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Citation
Distribution Statement
Approved for public release; distribution is unlimited.
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.