Type of Document	Thesis
Author	Lombardi, Khara Carisse
Author's Email Address	Lombardi@coaps.fsu.edu
URN	etd-08062004-142604
Title	Resolving the Diurnal and Synoptic Variance of Scatterometer Vector Wind Observations
Degree	Master of Science
Department	Meteorology, Department of
Advisory Committee	Advisor Name Title Mark Bourassa Committee Chair Carol Anne Clayson Committee Member James O'Brien Committee Member Jon Ahlquist Committee Member
Keywords	Midori2 QSCAT least squares regression rotary spectra oceanic winds
Date of Defense	2004-07-20
Availability	unrestricted
Abstract Scatterometer observations of vector winds are used to examine the amplitudes of synoptic and diurnal cycles. Scatterometers have the advantage of providing global coverage over water; however, irregular temporal sampling complicates the analyses. A least squares technique is used in determination of the amplitudes and phases of the diurnal and synoptic cycles on spatial scales of 5°, 15°, and 30°. In open ocean areas and regions with sufficient open water, the magnitudes of the diurnal and synoptic cycles are 1.0 ms-1 and 3.5ms-1, respectively. Diurnal amplitudes are highest in the polar regions and close to land surfaces due to sea breeze effects. The fraction of variance explained by the diurnal cycle is greatest near the equator. Synoptic amplitudes are consistently larger downwind of land from storm tracks and in the southern polar region as the time analyzed is during the southern winter season.
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