An intensive chemical investigation, that includes the
determinations of salinity, oxygen, nutrients, pH, alkalinity, and
total carbon dioxide of the Columbia River plume off the Oregon
coast in July 1967 shows the following unique features:
1. Along the axis of the river plume both the salinity minimum and
temperature maximum occur. The location of these extrema at zero,
ten, twenty meters depths differ considerably, suggesting different
patterns of water flow at different depths.
2. Throughout the plume region, at salinities less than 32.5%, the
plume water is supersaturated with respect to dissolved oxygen,
and a subsurface oxygen maximum exists at the depths of 3.0-50
meters.
3. The relationship between apparent oxygen production by marine
organisms and nutrient concentrations shows biological production of dissolved oxygen is a definite cause for the oxygen supersaturation
in the plume region.
4. The plume area off Oregon is a source of oxygen transfer from
the ocean into the atmosphere. / Graduation date: 1969
| Identifer | oai:union.ndltd.org:ORGSU/oai:ir.library.oregonstate.edu:1957/28209 |
| Date | 18 April 1969 |
| Creators | Cissell, Milton Charles |
| Contributors | Park, P. Kilho |
| Source Sets | Oregon State University |
| Language | en_US |
| Detected Language | English |
| Type | Thesis/Dissertation |
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