Record Details
Observations of the coastal upwelling region off Oregon during 1972
ScholarsArchive at Oregon State University
| Field | Value |
|---|---|
| Title | Observations of the coastal upwelling region off Oregon during 1972 |
| Names |
Huyer, Adriana, 1945-
(creator) Smith, Robert L. (advisor) |
| Date Issued | 1973-11-15 (iso8601) |
| Note | Graduation date: 1974 |
| Abstract | Observations of wind, currents, sea level and hydrography obtained during the 1972 Coastal Upwelling Experiment (CUE-I) are described. Only phenomena with periods longer than a day are considered. One section describes the changes observed during a period of variable winds in early July 1972. Another describes a ribbon of relatively cool water observed early in the upwelling season and attributes its existence to advection of Subarctic water by the coastal jet associated with upwelling. A third section describes the seasonal development of the upwelling regime between April and October 1972. These studies are combined with other studies of CUE-I data to provide a partial description of the upwelling regime which is compared to the conceptual model developed prior to CUE-I. It is concluded that the vertical and onshore velocity fields are as yet largely unknown. The alongshore velocity field includes southward surface flow with a coastal jet, a persistent vertical shear with deeper velocities northward relative to the surface and high coherence with the wind and sea level at periods of several days. A poleward undercurrent is observed, but it may not be an integral part of the upwelling regime. The hydrography has a strong seasonal cycle. Differences between any two sections between April and October l972 are smaller than between any of these and a section occupied in January 1973. Oscillations in the wind with periods of several days cause significant changes in the region inshore of 10 km and in the upper 20 m further offshore. Subsurface temperature observations are not coherent with the wind at periods of several days. |
| Genre | Thesis/Dissertation |
| Topic | Coasts -- Oregon |
| Identifier | http://hdl.handle.net/1957/28749 |
