Hydrographic and bathythermograph data taken off the Oregon
coast during a two week period in August of 1969 were analyzed to
determine if heat content and mixed layer depth may be used as
indicators of Columbia River plume water.
Heat content was found to be a poor indicator of plume...
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...
The Columbia River plume region was investigated during the
period of 20 June to 3 July, 1968 by light scattering measurements
and standard hydrographic station observations. The Columbia
River plume was traced by the light scattering particles of the plume
water. The light scattering particles are estimated to be contained...
Radioactive chromium-51, a waste byproduct from operation
of nuclear reactors at Hanford, Washington, has been followed down
the Columbia River and into the Pacific Ocean. Chemical factors
influencing the partitioning of ⁵¹Cr between solution and sediment
have been considered.
Chromium-5l, in a hexavalent oxyanion when introduced into the
Columbia River,...
An investigation has been made of several physical parameters of the effluent plume of the Columbia River as it enters the Pacific
Ocean. Radioactive material in trace amounts enters the Columbia River from the Hanford nuclear reactors at Richland, Washington. One of these nuclides, chromium -51, has been used to...
This annual report describes progress in marine radioecological studies
under USAEC Contract Number AT(45-1)2227 Task Agreement 12 during the period
1 July 1970 through 30 June 1971. This contract number replaces USAEC
Contract Number AT(45-1)1750 which started 1 June 1962. Although the basic
report format has not been greatly changed...
This report covers somewhat more than a full year of operation.
Individual contracts between the AEC and Oregon State University covering
the research of William Pearcy, Andrew Carey, Jr. , and Charles Osterberg
were combined into a joint contract on 1 November 1964. No Progress
Reports for the unexpired portions...
The probable pollution distribution and flushing times have been
calculated for the Columbia River Estuary, a coastal plain estuary.
The pollution distribution was determined by the fresh water fraction
and by the diffusion equation. The flushing times were calculated by
the modified tidal prism method and by the fraction of...
This investigation has been carried out primarily to define the Columbia
River bar crossing problem, to determine the physical factors involved in
hazardous transit developments, and to develop a method for predicting
hazardous bar transit conditions sufficiently in advance to allow proper
safety precautions to be effected.
Actual records of...