The wind field measured during Project JASIN 1972, a joint
British-American venture during September 1972, was analyzed.
These measurements were done, with equipment manufactured by
Ivar Aanderaa of Bergen, Norway, on large, anchored toroid buoys.
The results of the analysis of the wind field, which included
divergence and vorticity estimates and spectral analysis, compared
favorably with results from previous studies by other investigators.
The spectral analysis of the wind field at different locations showed
some differences indicating that ocean wind fields are less homogeneous
than had been expected. Basic statistics of the wind speed and
direction at the same locations also confirmed this conclusion.
An apparent diurnal cycle in the u and v components of the wind
was studied. It was shown that the total wind vector for the study
period was quite different at different horizontal locations while hourly
deviations around these means during a day showed remarkable
similarities.
A curious eight-hour period found in the divergence estimates
on a 100 km grid is possibly related to an eight-hour air pressure wave
studied many years ago by Von Hann (1918) and Bartels (1932).
It was concluded that the wind field over the ocean is not entirely
homogeneous and some rather large differences are found over a scale
as small as 100 kilometers. / Graduation date: 1974
| Identifer | oai:union.ndltd.org:ORGSU/oai:ir.library.oregonstate.edu:1957/28336 |
| Date | 16 August 1973 |
| Creators | Cummings, Timothy K. |
| Contributors | Burt, Wayne V. |
| Source Sets | Oregon State University |
| Language | en_US |
| Detected Language | English |
| Type | Thesis/Dissertation |
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