Observations of the coastal upwelling region off Oregon during 1972
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. Anothe...
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ftoregonstate:ir.library.oregonstate.edu:g158bk67s 2024-09-09T20:10:52+00:00 Observations of the coastal upwelling region off Oregon during 1972 Huyer, Adriana, 1945- Smith, Robert L. School of Oceanography Oregon State University. Graduate School https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/g158bk67s English [eng] eng unknown Oregon State University https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/g158bk67s Copyright Not Evaluated Coasts -- Oregon Dissertation ftoregonstate 2024-07-22T18:06:05Z 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. Doctoral or Postdoctoral Thesis Subarctic ScholarsArchive@OSU (Oregon State University) |
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Open Polar |
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ScholarsArchive@OSU (Oregon State University) |
op_collection_id |
ftoregonstate |
language |
English unknown |
topic |
Coasts -- Oregon |
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Coasts -- Oregon Huyer, Adriana, 1945- Observations of the coastal upwelling region off Oregon during 1972 |
topic_facet |
Coasts -- Oregon |
description |
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. |
author2 |
Smith, Robert L. School of Oceanography Oregon State University. Graduate School |
format |
Doctoral or Postdoctoral Thesis |
author |
Huyer, Adriana, 1945- |
author_facet |
Huyer, Adriana, 1945- |
author_sort |
Huyer, Adriana, 1945- |
title |
Observations of the coastal upwelling region off Oregon during 1972 |
title_short |
Observations of the coastal upwelling region off Oregon during 1972 |
title_full |
Observations of the coastal upwelling region off Oregon during 1972 |
title_fullStr |
Observations of the coastal upwelling region off Oregon during 1972 |
title_full_unstemmed |
Observations of the coastal upwelling region off Oregon during 1972 |
title_sort |
observations of the coastal upwelling region off oregon during 1972 |
publisher |
Oregon State University |
url |
https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/g158bk67s |
genre |
Subarctic |
genre_facet |
Subarctic |
op_relation |
https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/g158bk67s |
op_rights |
Copyright Not Evaluated |
_version_ |
1809945300091011072 |