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• 21. [Article] A compilation of observations from moored current meters and associated oceanographic observations : POLYMODE Array III Cluster C, May 1977 - May 1978

  Citation × Citation Citation Abstract Copy Title: A compilation of observations from moored current meters and associated oceanographic observations : POLYMODE Array III Cluster C, May 1977 - May 1978 Author: Keffer, T., Koblinsky, C. J., Niiler, Pearn P., Oregon State University. School of Oceanography Title: A compilation of observations from moored current meters and associated oceanographic observations : POLYMODE Array III Cluster C, May 1977 - May 1978 Author: Keffer, T., Koblinsky, C. J., Niiler, Pearn P., Oregon State University. School of Oceanography Close

• 22. [Article] A compendium of time series measurements from moored instrumentation during the MAM '77 phase of JOINT-II

  Citation × Citation Citation Abstract Copy Title: A compendium of time series measurements from moored instrumentation during the MAM '77 phase of JOINT-II Author: Halpern, David, 1942-, Brink, Kenneth H., Oregon State University. School of Oceanography, Smith, Robert L. (Robert Lloyd), 1935- Title: A compendium of time series measurements from moored instrumentation during the MAM '77 phase of JOINT-II Author: Halpern, David, 1942-, Brink, Kenneth H., Oregon State University. School of Oceanography, Smith, Robert L. (Robert Lloyd), 1935- Close

• 23. [Article] Hydrographic data from the first coastal ocean dynamics experiment : R/V Wecoma, Leg 2, 10-14 April 1981

  Citation × Citation Citation Abstract Copy Title: Hydrographic data from the first coastal ocean dynamics experiment : R/V Wecoma, Leg 2, 10-14 April 1981 Author: Gilbert, William E., Schramm, Richard E., Huyer, Adriana, 1945-, Oregon State University. School of Oceanography Title: Hydrographic data from the first coastal ocean dynamics experiment : R/V Wecoma, Leg 2, 10-14 April 1981 Author: Gilbert, William E., Schramm, Richard E., Huyer, Adriana, 1945-, Oregon State University. School of Oceanography Close

• 24. [Article] Results of an intercalibration at sea of hydrographic and chemical observations and standards aboard the USSR ship PROFESSOR VIESE and the US research vessel THOMAS G. THOMPSON during FDRAKE 76

  On 15 February 1976 the USSR Research Ship PROFESSOR VIESE and the US R/V T.G. THOMPSON rendezvoused in the southern Drake Passage. The ships simultaneously occupied hydrographic stations as close together ...

  Citation × Citation Citation Abstract Copy Title: Results of an intercalibration at sea of hydrographic and chemical observations and standards aboard the USSR ship PROFESSOR VIESE and the US research vessel THOMAS G. THOMPSON during FDRAKE 76 Author: Gordon, Louis Irwin, 1928-, Nowlin, W. D. (Worth D.), Anderson, George Cameron, 1926-, Oregon State University. School of Oceanography On 15 February 1976 the USSR Research Ship PROFESSOR VIESE and the US R/V T.G. THOMPSON rendezvoused in the southern Drake Passage. The ships simultaneously occupied hydrographic stations as close together as feasible. Calibration standards for salinity, dissolved oxygen, and dissolved reactive phosphate and silicate were then exchanged by the two scientific parties. The calibration standards were found to be in very good agreement, the differences being insignificant with respect to measurement precision. The results of the hydrographic station intercomparison showed average differences with regard to sign between the two ships' results for temperature, salinity, dissolved oxygen, reactive phosphate, and reactive silicate to be realtively small but the root-mean-square differences to be quite large. This indicates that general comparisons of the two data sets are possible, whereas detailed considerations are not reasonable because of serious measurement errors aboard VIESE. Title: Results of an intercalibration at sea of hydrographic and chemical observations and standards aboard the USSR ship PROFESSOR VIESE and the US research vessel THOMAS G. THOMPSON during FDRAKE 76 Author: Gordon, Louis Irwin, 1928-, Nowlin, W. D. (Worth D.), Anderson, George Cameron, 1926-, Oregon State University. School of Oceanography On 15 February 1976 the USSR Research Ship PROFESSOR VIESE and the US R/V T.G. THOMPSON rendezvoused in the southern Drake Passage. The ships simultaneously occupied hydrographic stations as close together as feasible. Calibration standards for salinity, dissolved oxygen, and dissolved reactive phosphate and silicate were then exchanged by the two scientific parties. The calibration standards were found to be in very good agreement, the differences being insignificant with respect to measurement precision. The results of the hydrographic station intercomparison showed average differences with regard to sign between the two ships' results for temperature, salinity, dissolved oxygen, reactive phosphate, and reactive silicate to be realtively small but the root-mean-square differences to be quite large. This indicates that general comparisons of the two data sets are possible, whereas detailed considerations are not reasonable because of serious measurement errors aboard VIESE. Close

• 25. [Article] Particle size distributions and the vertical distribution of suspended matter in the upwelling region off Oregon : final report

  Various methods of presenting and mathematically describing particle size distribution are explained and evaluated. The hyperbolic distribution is found to be the most practical but the more complex characteristic ...

  Citation × Citation Citation Abstract Copy Title: Particle size distributions and the vertical distribution of suspended matter in the upwelling region off Oregon : final report Author: United States. National Aeronautics and Space Administration, United States. National Technical Information Service, Oregon State University. School of Oceanography, Kitchen, James C. Various methods of presenting and mathematically describing particle size distribution are explained and evaluated. The hyperbolic distribution is found to be the most practical but the more complex characteristic vector analysis is the most sensitive to changes in the shape of the particle size distributions. Particle size distribution, nutrient concentrations, temperature and other biological and hydrographic data were taken during two cruises off the Oregon coast. The first, in late July, 1973, was during a period of consistent upwelling-favorable winds. The second cruise, in August, 1974, was during a period of intermittently favorable winds. Thus the data presented represent several different upwelling situations. Two distinct vertical structures of suspended particulates and two types of particle size distributions were found, separated by a particle front. On the offshore side of the front, the structure was characterized by dominantly small particles and a subsurface maximum of suspended matter. On the other side of the front, the structure shows a particle maximum at or very near the surface with dominantly large particles. A method for determining onshore-offshore flow patterns from the distribution of particulates was presented. The method was applied to the data from the two cruises. A further experiment was suggested with an emphasis on determining three-dimensional current patterns at the same time as particle distributions. Such data would be used for a three-dimensional numerical model. A numerical model of the vertical structure of two size classes of particles was developed. The results show a close similarity to the observed distributions but overestimate the particle concentration by forty percent. This was attributed to ignoring grazing by zooplankton. Sensitivity analyses showed the size preference was most responsive to the maximum specific growth rates and nutrient half saturation constants. The vertical structure was highly dependent on the eddy diffusivity followed closely by the growth terms. Title: Particle size distributions and the vertical distribution of suspended matter in the upwelling region off Oregon : final report Author: United States. National Aeronautics and Space Administration, United States. National Technical Information Service, Oregon State University. School of Oceanography, Kitchen, James C. Various methods of presenting and mathematically describing particle size distribution are explained and evaluated. The hyperbolic distribution is found to be the most practical but the more complex characteristic vector analysis is the most sensitive to changes in the shape of the particle size distributions. Particle size distribution, nutrient concentrations, temperature and other biological and hydrographic data were taken during two cruises off the Oregon coast. The first, in late July, 1973, was during a period of consistent upwelling-favorable winds. The second cruise, in August, 1974, was during a period of intermittently favorable winds. Thus the data presented represent several different upwelling situations. Two distinct vertical structures of suspended particulates and two types of particle size distributions were found, separated by a particle front. On the offshore side of the front, the structure was characterized by dominantly small particles and a subsurface maximum of suspended matter. On the other side of the front, the structure shows a particle maximum at or very near the surface with dominantly large particles. A method for determining onshore-offshore flow patterns from the distribution of particulates was presented. The method was applied to the data from the two cruises. A further experiment was suggested with an emphasis on determining three-dimensional current patterns at the same time as particle distributions. Such data would be used for a three-dimensional numerical model. A numerical model of the vertical structure of two size classes of particles was developed. The results show a close similarity to the observed distributions but overestimate the particle concentration by forty percent. This was attributed to ignoring grazing by zooplankton. Sensitivity analyses showed the size preference was most responsive to the maximum specific growth rates and nutrient half saturation constants. The vertical structure was highly dependent on the eddy diffusivity followed closely by the growth terms. Close