Oceanography FACULTY As of January 1985 Administration: Douglas R. Caldwell, Acting Dean Lawrence F. Small, Associate Dean Victor T. Neal, Assistant Dean Professors Emerti: Bdvarsson, Burt, Hedgpeth, Quinn, Strong Professors: J. Allen, Beasley, Byrne, Caldwell, Carey, Dymond, Frolander, Gonor, Komar, Kulm, C. Miller, Morita, Neshyba, Paulson, Pearcy, Pytkowicz, Schrader, Simoneit, L. F. Small, R. L. Smith, Suess, Zaneveld; Associate Professors Chen, Couch, Cowles, de Szoeke, Dillon, Duncan, Gordon, Holman, Huyer, Levi, Mate, Mesecar, Neal, D. M. Nelson, Pak,' Pillsbury,' Pisias, Richman, Wheeler; Assistant Professors Abbott, Bibee, Carlson, Chelton, Chereskin,' Enfield, Fisk, Garber, Good, Jacobson, Levine, Lyle,' Menke, Mix, Ness, Prahl, Purcell, Richman, Siebenaller, Stein, Steub, Taghon; Research Associates Clarke, Collier, Dauphin, Grover, Hogan, Kadko, Karlin, Moum, Ness, Newberger, Peterson, Stein, Thornburg, Wagner; Instructor Palfrey The College of Oceanography has a short but impressive history of growth and development at Oregon State University. Since its inception in 1959 as a department with one specialist, it has grown to include a staff or more than 80 scientists with over 100 support personnel. Before 1959 very little was known about Oregon's coastal or estuarine areas, their animals and plants, or the earth beneath them. Since that time, the college (initially a department) has directed major research effort to the Pacific Ocean off the Oregon Coast. In recent years, the territory of interest has widened to include all the oceans of the world. Mission The college has a three-fold mission: to prepare men and women for careers in oceanography and related fields; to broaden, through research and extension, regional knowledge about the marine environment; and to further national oceanic endeavors. 'Senior research faculty. Teaching and Research Teaching and research programs emphasize the interdependence of the biological, chemical, geological, geophysical, and physical processes in and under the sea. In the college, each of these disciplines is represented by a number of scientists. This interdisciplinary approach encourages and makes possible the rapid exchange of ideas often necessary for the solution of a research or management problem. Graduate students play an essential part in carrying out such research. Degree Programs Although there are some undergraduate courses, only graduate degrees are offered in oceanography. Programs available lead to the Master of Science (M.S.), Master of Arts (M.A.), and Doctor of Philosophy (Ph.D.) degrees in biological, chemical, geological, and physical oceanography, as well as in geophysics. In addition, the college offers master's degree options in marine resource management and in air-sea interaction. Job Opportunities The college helps students prepare for research, teaching, and management positions. Branches of the federal government that employ oceanographers include the Navy, the Coast Guard, the Department of the Interior, the National Oceanic and Atmospheric Administration, the Department of Energy, the Army Corps of Engineers, and the Environmental Protection Agency. The main U.S. oceanographic effort is still centered around federal programs or federally funded programs. Therefore, most of the oceanographic research at universities is supported by federal grants and contracts. Career opportunities in marine education and marine research exist in colleges and universities, especially Academics 231 at those institutions in the coastal and Great Lakes states. Opportunities for research also exist with private enterprise, especially with those involved with develop- ment of marine and coastal resources. Admission Requirements Requirements for admission to graduate study: a. A bachelor's degree with a major (40 term credits or more) in a basic natural science (such as physics, mathematics, chemistry, biology, or geology) or engineering. Marine resource management majors must also have a bachelor's degree, but the major may be in the social sciences (economics, political science, etc.), business administration, the natural sciences, fisheries, or engineering. b. A minimum cumulative grade-point average of approximately 3.00 on a 4.00 scale for the last 90 credits of undergraduate work. c. One year each of undergraduate course work in physics, chemistry, and calculus. d. Graduate Record Examination (GRE) scores (general and advanced). e. Three letters of recommendation. Students may apply for admission any term. Early application is recommended. General Program Requirements Students majoring in oceanography or marine resource management are required to take prescribed core courses in each of the following fields: biological, chemical, geological, and physical oceanography. Geophysics majors are normally required to take one or more courses in physical and geological oceanography in addition to their geophysics courses. Oceanography and geophysics majors usually minor in some other field of science, mathematics, statistics, or engineering. Marine resource management majors have multidisciplinary programs and do not declare minor programs. All students are expected to participate in seagoing projects. Students normally consult with their major professors to make arrangements to obtain experience on research vessels. Master's Programs All students must satisfy the minimum program requirements (45 credits including six credits of thesis) established by the Graduate School. Some graduate credits 232 Oregon State University earned at other institutions may be approved for inclusion in the program. Marine resource management programs normally have 60 hours of course work and six credits of internship. (No thesis is required in the marine resource management program, but an internship normally is required.) A two-hour, final oral examination is required upon completion of the master's program. Marine Resource Management Program The master's degree in marine resource management is designed to prepare students for careers in resource management. The program, which usually can be completed within two years, generally consists of basic courses in oceanography, economics, fisheries, and business administration. Additional courses may be taken in the Colleges of Engineering, Agriculture, Science, and Liberal Arts. Each program is adjusted to the needs of the individual. No thesis is required. An applicant's bachelor's degree should be in natural science, social or political science, business administration, fisheries, or engineering. College physics, chemistry, and calculus are required. The Western Interstate Commission for Higher Education (WICHE) has selected the marine resource management program as one of the unique or specialized graduate programs it coordinates in the Northwest. Residents of Alaska, Arizona, Colorado, Hawaii, Idaho, Montana, Nevada, New Mexico, Utah, Washington, and Wyoming, who major in this program, pay resident tuition rates at OSU. Air-Sea Interaction Program For the master's degree, students may elect an option in air-sea interaction, offered jointly by the College of Oceanography and the Department of Atmospheric Sciences in the College of Science. This integrated curriculum emphasizes physical oceanography and atmospheric sciences, but may also include work in mathematics, statistics, and engineering. Students who wish to select this option for their master's degree program may seek admission to either the College of Oceanography or the Department of Atmospheric Sciences. Doctor of Philosophy Program The Ph.D. program is determined by the individual student and his or her committee. Specific University requirements are formulated by the Graduate School. Approximately 80 credits of oceanography courses (including the core courses and 30 to 35 credits of thesis) are usually included in the major. A first and second minor or an integrated minor totaling about 40 credits is common. Some graduate credits earned at other institutions may be accepted in the major and minor. There are no set requirements on the number of course credits to be taken; each program corresponds to the needs of the individual candidate. The dissertation is based on an original investigation in some area of oceanography. Oceanography courses taken as a part of the master's program at OSU are normally transferable into the Ph.D. program. Geophysics Program Programs in geophysics are offered by the college in cooperation with the Departments of Physics, Geology, and Mathematics in the College of Science. A student studying for a degree under this program works out with his or her committee, a course of study which must include a minimum of two courses in oceanography. The remainder of the program is selected from geophysics courses and related fields. Oceanography Minor Programs Master's candidates who wish to minor in oceanography must take one course in descriptive physical oceanography and from 8 to 15 credits of other oceanography courses. Ph.D. candidates who wish to minor in oceanography must take the core oceanography courses. If oceanography is the first minor, the program should include a total of approximately 30 credits of oceanography. Summer Programs Programs are usually offered at the Hatfield Marine Science Center in Newport as well as on the main campus in Corvallis, and vary from year to year. For further information on summer programs at the coast, write to: Director, Hatfield Marine Science Center, Newport, Oregon 97365. Courses offered on the Corvallis campus each summer are normally graduate-level courses for nonmajors, such as high school teachers. Distinguished visiting oceanographers occasionally offer short courses or seminars which are usually open to majors and nonmajors. For further information on summer programs write to the director of OSU's Summer Term Office. Research Vessels The college's major research vessel, the R/V Wecoma, is based at the Hatfield Marine Science Center in Newport, 50 miles (90 kilometers) from the Corvallis campus. The ship, which came into service in early 1976, is 177 feet long (54 meters) and has space for '16 scientists. It is especially designed for oceanographic research and is used mainly for deep ocean l work. The college also maintains small vessels for nearshore, estuarine, and limnological research. Courses Not all courses are offered every year. Consult the Schedule of Classes or the College of Oceanography for current offerings. GENERAL Upper Division Courses Courses numbered 400-499 and designated (G) may be taken for graduate credit. OC 199. SPECIAL TOPICS. (1, 2, or 3 credits). OC 331. INTRODUCTION TO OCEANOGRAPHY. (3 credits). Marine ecosystems; geological and geophysical aspects of the seafloor; physical and chemical properties of seawater; waves, tides, currents, ocean circulation; related topics. OC 406. PROJECTS. (Terms and credits to be arranged). Not offered every year. OC 471. PHYSICAL LIMNOLOGY. (3 credits) (G). Geological and physical processes in lakes, rivers, and reservoirs; procedures for field studies in physical limnology. PREREQ: College algebra; 18 credits of science. Offered alternate years. OC 499. SPECIAL TOPICS IN OCEANOGRAPHY. (1, 2, 3, 4, or 5 credits) (G). Graduate Courses See also courses marked (G) above. OC 501. RESEARCH. OC 510. INTERNSHIP.. (1-9 credits to be arranged). Planned and supervised experience with selected, cooperating governmental agencies, private organizations, or business firms. Supplementary conferences, reports, and evaluations. Consent of instructor required. OC 503. THESIS. MRM 501. RESEARCH. (Terms and credits to be arranged). MRM 503. THESIS. (Terms and credits to be arranged). MARINE RESOURCE MANAGEMENT MRM 505. READING AND CONFERENCE. (Terms and credits to be arranged). OC 506. PROJECTS. Graduate Courses MRM 506. PROJECTS. (Terms and credits to be arranged). OC 507. SEMINAR. Section M, Resource Management, graded PIN. See also courses OC 505. READING AND CONFERENCE. OC 508. WORKSHOP. (Terms and credits to be arranged). Not offered every year. marked (G) above. MRM 499. SPECIAL TOPICS. (1-5 credits) (G). MRM 507. SEMINAR (Terms and credits to be arranged). Academics 233 MRM 508. WORKSHOP. (Terms and credits to be arranged). MRM 510. INTERNSHIP. (1-9 credits to be arranged). Planned and supervised resource management experi- ence with selected cooperating governmental agencies, private organizations, or business firms. Supplementary conferences, reports and evaluations. Consent of instructor required. For marine resource management majors only. MRM 512. MARINE TRANSPORTATION. (3 credits). National and international aspects of maritime commerce. Vehicles, ports, navigation, economics, social and legal aspects, management problems and trends. PREREQ: EC 499; OC 431 or equivalent. BIOLOGICAL OCEANOGRAPHY Upper Division Courses Courses numbered 400-499 and designated (G) may be taken for graduate credit. OC 442. MARINE ZOOPLANKTON. (3 credits) (G). Small animal life in the sea, population and production, regional distribution, physiology, sampling. PREREQ: Two years of biology OC 490, or OC 541. Offered alternate years. Not offered 1985-86. OC 443. MARINE ZOOPLANKTON LABORATORY. (2 credits) (G). OC 442 to be taken concurrently. Offered alternate years. Not offered 1985-86. MB 450. MARINE MICROBIOLOGY. (3 credits) (G). See Microbiology in College of Science. OC 490. PRINCIPLES OF BIOLOGICAL OCEANOGRAPHY. (3 credits) (G). The ocean as a living environment: importance of temperature, salinity, density, circulation, light, nutrients, and dissolved gases to life in the sea; adaptations of organisms living in the ocean; productivity; food web; ocean pollution problems. For nonoceanography majors. PREREQ: 8 hours of upper division science. Courses from other departments accepted for major credit. Graduate Courses See also courses marked (G) above. OC 541. BIOLOGICAL OCEANOGRAPHY. (4 credits). The ocean as an ecosystem; interaction of the physical, chemical, and biological factors; plant and animal populations; methods of sampling, identification, and analysis. PREREQ: OC 431,551. OC 542. MARINE NEKTON. (3 credits). Biology of oceanic and deep sea fishes, squids, and shrimp, including sampling methods, vertical distribution and migration, bioluminescence, buoyancy, locomotion, migration, special adaptations, and relationships with oceanographic processes. PREREQ: OC 490 or OC 541 or equivalent. Offered alternate years. Not offered 1985-86. OC 543. MARINE NEKTON LABORATORY. (1 credit). To be taken concurrently with OC 542. Offered alternate years. Offered 1985-86. OC 544. MARINE PHYTOPLANKTON ECOLOGY. (3 credits). Floating plant life in the sea and estuaries; systematics and distribution; physiology; population dynamics; environmental factors; artificial cu tivation, effect upon environment and position in food webs. PREREQ: OC 331 or OC 490 or OC 541 or two years of biology. OC 545. MARINE PHYTOPLANKTON PIIYSIOLOGY. (3 credits). Life processes of plankton algae: energy-capturing processes, mineral nutrition, flotation mechanisms, cell division. Evaluation of experimental procedures; problems of existence in the open ocean; artificial productioin of maximum yields. PREREQ: OC 544. Offered alternate years. Not offered 1985-86. 234 Oregon State University OC 546. EARLY LIFE HISTORY OF MARINE FISHES. (4 credits). Ecology, behavior, physiology, and development of egg, larval, and juvenile stages, with special reference to adaptationsforsurvival in larval rearing, egg and larval sampling methods. Laboratory work with systematics of larval fishes; particular emphasis on identification of eggs and larvae of marine fishes of the California current system. PREREQ: FW 313 or 571 or consent of instructor. OC 548. SEA FLOOR ECOLOGY. (4 credits). Oceanic benthic habitats; distribution and abundance of marine benthic organisms; biogeography and adaptations to benthic environments; structural analysis of benthic systems; community energetics, production, regulating mechanisms, and benthicpelagic coupling. PREREQ: Z 451,452, or consent of instructor. Offered alternate years. Offered 1985-86. OC 549. SPECIAL TOPICS IN BIOLOGICAL OCEANOGRAPHY. (1, 2, or 3 credits). Not offered every year. CHEMICAL OCEANOGRAPHY Upper Division Courses Courses numbered 400-499 and designated (G) may be taken for graduate credit. OC 493. PRINCIPLES OF CHEMICAL OCEANOGRAPHY. (3 credits) (G). Chemical composition of seawater; methods of analysis; chemistry of solutions; salinity, pH, dissolved gases, nutrients, and other factors important to people; pollution problems; extraction of materials useful to people. For nonoceanography majors. PREREQ: College algebra and one year of chemistry or consent of instructor. Offered alternate years. Not offered 1985-86. Graduate Courses See also courses marked (G) above. OC 551. CHEMICAL OCEANOGRAPHY. (3 credits). Chemistry of the oceans; the chemical processes which take place within them and between them and the biosphere, lithosphere, and atmosphere. Chemistry of marine pollution. Not for chemistry or chemical oceanography majors. PREREQ: CH 203 or 205. OC 552. CHEMICAL OCEANOGRAPHY. (3 credits). Chemistry of the oceans for chemists. Seawater as a complex electrolyte solution. The nature and rates of chemical reactions occurring in seawater and between the oceans and the biosphere, lithosphere, and atmosphere. Chemical models of seawater and the oceans. PREREQ: Undergraduate degree in chemistry. OC 553. DESCRIPTIVE CHEMICAL OCEANOGRAPHY. (4 credits). Reasons for observed distributions and cycles of chemical species in seawater. Applications of these distributions to the study of water masses, exchange with the atmosphere, biological production, and sedimentation. PREREQ: OC 551 or 552. Not offered every year. OC 554. THEORETICAL CHEMICAL OCEANOGRAPHY. (4 credits). Thermodynamics of chemical reactions in seawater at atmospheric and at high pressures, illustrated mainly by the carbon dioxidecarbonate system. Physico-chemical properties of seawater. PREREQ: One year of physical chemistry. Not offered every year. OC 555. CHEMICAL OCEANOGRAPHY LABORATORY. (2 credits). Selected methods of chemical analysis of seawater. PREREQ or COREQ: OC 551 or 552. Offered alternate years. Offered 1985-86. OC 556. MARINE ORGANIC GEOCHEMISTRY. (3 credits). Organic carbon forms (gas, lipids-bitumen, humic substances, kerogen) in the geosphere,. Present versus past, genesis of organic matter, diagenesis, cycling, resources, nutrients, and pollutants in the biosphere, atmosphere, hydrosphere, and lithosphere. Transport and preservation. Organic matter characterization on molecular levels, methods, and interpretations. PREREQ: One year of organic chemistry or biochemistry, or consent of instructor. OC 559. SPECIAL TOPICS IN CHEMICAL OCEANOGRAPHY. (1, 2, or 3 credits). Not offered every year. GEOLOGICAL OCEANOGRAPHY Upper Division Courses Courses numbered 400-499 and designated (G) may be taken for graduate credit. OC 492. PRINCIPLES OF GEOLOGICAL OCEANOGRAPHY. (3 credits) (G). Sedimentation processes, geological features of the oceans and continental margins, minerals found in or on the sea floor, sea floor spreading, present day research. For nonoceanography ma ors. PREREQ: 8 credits of upper division science. Offlered alternate years. Offered 1985-86. Graduate Courses See also courses marked (G) above. OC 511. LITTORAL PROCESSES AND SEDIMENTATION. (3 credits). Nearshore environmental processes including an examination of real waves (wave theories and their application, refraction, diffraction, reflection, and breaking); generation of longshore and rip currents, mechanics of sediment transport on beaches, and features of recent sediments. PREREQ: General physics; integral and differential calculus. Offered alternate years. Offered 1985-86. OC 560. GEOLOGICAL OCEANOGRAPHY. (4 credits). Structure of ocean basins, plate tectonics and sea floor spreading, marine sedimentation, history of ocean basins, and analysis of geological and geophysical data. PREREQ: One year of physics and chemistry or science background. OC 561. PLATE TECTONICS AND STRUCTURE OF OCEAN BASINS. (3 credits). Evidence and predictions of plate tectonic model; structure and evolution of the divergent and convergent plate margins; metrology of oceanic crust and upper mantle; lithosphere-mantle interaction; evolution of oceanic lithosphere; models for development of continental margins. Required for majors in geological oceanography. PREREQ: One year each of physics, calculus, and geology or permission of instructor. OC 562. PHYSICAL, CHEMICAL, AND BIOLOGICAL SEDIMENTATION IN THE OCEANS. (3 credits). Fundamentals of transport, chemical reactions, and biological processes in sediment formation, including fluid flow and drag, threshold and sedimentary bed forms, sources, facies and budgets of sediments, early diagenetic reactions, marine microfossil stratigraphy and paleoceanographicinterpretations. Required for majors in geological oceanography and recommended for geology majors. Consent of instructor required. OC 563. DEEP-SEA SEDIMENTS. (3 credits). Nature and distribution of deep-sea deposits; factors controlling the distribution of terrigenous, volcanic, biogenic, and authigenic components; diagenesis and redistribution at the ocean floor; ancient deep-sea sediments. OC 564. MINERALOGY OF MARINE SEDIMENTS. (3 credits). Identification and quantitative determination of fine-grained minerals in marine, especially deep-sea, sediments; structural characteristics and genesis of important mineral groups; application of laboratory techniques, particularly x-ray diffraction, to specialized research problems. Not offered every year. OC 565. BIOSTRATIGRAPHY OF MARINE SEDIMENTS. (3 credits). Curation and description of marine deep sea sediments; identification and quantitative determination of major biogenic components; biostratigraphy of marine microfossils; structure and texture of sediments; application of laboratory techniques. Consent of instructor required. OC 566. ISOTOPIC MARINE GEOCHEMISTRY. (3 credits). Radioactive and stable isotope systems and their application to problems involving seawater, marine sediments, and oceanic rocks. Consent of instructor required. Not offered every year. OC 567. MARINE MICROPALEONTOLOGY I: FORAMINIFERA. (4 credits). Systematics and taxonomy; laboratory identification and classification; field and laboratory techniques, use of literature; numerical analysis of faunas; familiarization with bathymetric and zoogeographic index species of benthic and planktonic foraminifera; specialized research problems. OC 568. MARINE MICROPALEONTOLOGY II: SILICEOUS MICROFOSSILS. (6 credits). Stratigrapphic distribution; systematics and taxonomy of Radiolaria, Silicoflagellatae, Diatomacease; distribution of floras and faunas during the Cainozoic; laboratorty preparatrion, identification and classification. Consent of instructor required. OC 569. SPECIAL TOPICS IN GEOLOGICAL OCEANOGRAPHY. (1, 2, or 3 credits). Nct offered every year. OC 581. IGNEOUS AND METAMORPHIC PROCESSES IN THE OCEAN BASINS. (3 credits). Origin and evolution of oceanic crusts, including the origin and nature of chemical heterogeneity and igneous rocks in the ocean basins; interaction mantle and lithosphere, as reflected in the topography of ocean basins; hydrothermal processes and the alteration of oceanic crust; geothermometry and geobarometry of oceanic magmas; elementary fractionation patterns and modeling of partial melting; fractional crystallization in oceanic magmas. Consent of instructor required. OC 582. ANALYSIS OF GEOLOGIC DATA BASES. (4 credits). Spatial and stratigraphic characteristics of geologic data; geologic data bases; application of matrix theory to the solution of geologic problems; descriptive models, predictive models, spatial models, and stratigraphic and time-series models. PREREQ: One year of statistics and one year computer science or consent of instructor. Not offered every year. PHYSICAL OCEANOGRAPHY Upper Division Courses Courses numbered 400-499 and designated (G) may be taken for graduate credit. OC 431. PHYSICAL OCEANOGRAPHY. (3 credits). Introduction to the physics of the ocean. Physical properties of seawater; dynamics governing motion in the ocean; equations of motion, time, and space scales of motion, geostrophy, turbulence; wind and tides: generation and propagation of wind waves, internal waves, tidal theory and prediction, tsunamis; propagation of light and sound in the ocean. PREREQ: One year college physics; one year calculus. OC 432. CURRENTS AND WATER MASSES. (3 credits) (G). Heat budget of the ocean, air-sea interaction processes, planetary heat budget; water masses, conservation laws, distribution of conservative and non-conservative properties, water mass formation; wind-driven circulation, the major surface current systems; abyssal circulation, thermohaline circulation, formation of deep and bottom water; coastal and estuarine oceanography. PREREQ: OC 431 or 571. OC 433. ESTUARINE AND COASTAL OCEANOGRAPHY. (3 credits) (G). Dynamics of estuarine and coastal waters. Tides, waves, wind-driven currents, upwelling, fronts and plumes, sedimentary processes, surges, temporal and spatial distribution of variables and the effects of human activities. PREREQ: OC 431 or 491. OC 491. PRINCIPLES OF PHYSICAL OCEANOGRAPHY. (3 credits) (G). Physical properties of seawater, interrelationships between atmosphere and ocean, heat budget, water mass formation, ocean circulation, waves, tides, coastal processes. For nonoceanography majors. PREREQ: College algebra; physics or physical science or consent of instructor. Not offered every year. Academics 235 Graduate Courses See also courses marked (G) above. OC 579. SPECIAL TOPICS IN PHYSICAL OCEANOGRAPHY. (1, 2, or 3 credits). Consent of instructor required. Not offered every year. OC 531. DESCRIPTIVE PHYSICAL OCEANOGRAPHY. (3 credits). Physical properties of seawater; air-sea interaction; light transmission; heat, water, and salt budgets and water mass formation; distribution of temperature, salinity, and density; sound transmission; surface circulation; deep circulation and mixing processes. PREREQ: One year of college physics; differential and integral calculus. Not offered every year. GEOPHYSICS OC 535. OPTICAL OCEANOGRAPHY. (3 credits). Absorption, scattering, and attenuation properties of pure water; dissolved and suspended materials; distribution of optical properties; reflection; albedo; ocean color; irradiance; elementary radiative transfer; visibility; determination of total suspended mass, particle size distribution, nature of particles; remote sensing of ocean color. PREREQ: One year of college physics; differential and integral calculus. Not offered every year. GPH 463. INTRODUCTORY SOLID EARTH GEOPHYSICS, (4 credits) (G). Principles of geophysics, including gravity, earthquakes, elasticity and seismic waves, the earth's interior, heat flow and convection, plate tectonics, geomagnetism, and paleomagnetism. PREREQ: G 212; MTH 201; PH 203. GPH 464. INTRODUCTION TO GEOPHYSICAL EXPLORATION. (4 credits) (C). Physical principles, operational procedures, and interpretation techniques in geophysical methods used for geologic mapping and resource exploration. Gravity, magnetic, electrical, electromagnetic, seismic reflection and refraction, and radioactivity surveys and well logging. Laboratory includes interpretation and field exercises. PREREQ: G 463 or GPH 463 or equivalent. GPH 501. RESEARCH. OC 539. REGIONAL PHYSICAL OCEANOGRAPHY. (3 credits). Detailed study of selected regions of the world ocean: mesoscale wind and ocean circulation; budgets of conservative and non-conservative properties; GPH 503. THESIS. historical and current literature review; research and discussion of interdisciplinary questions. Successive terms may cover different regions; thus course may be taken more than once (with consent of instructor) for additional credits. PREREQ: OC 431,432. Not offered GPH 507. SEMINAR. (Terms and credits to be arranged). every year. OC 571. THEORETICAL PHYSICAL OCEANOGRAPHY I. (4 credits). Fundamentals of fluid dynamics: conservation laws of mass, momentum, and energy; constitutive relations; viscous flow, dynamic similarity, boundary layers; the inviscid approximation, vorticity dynamics, irrotational flow; compressibility effects, sound waves. PREREQ: One year of college physics; mathematics through differential equations and vector calculus. OC 572. THEORETICAL PHYSICAL OCEANOGRAPHY H. (4 credits). Geophysical fluid dynamics: perturbation methods; dynamics of rotating and stratified fluids, conservation of potential vorticity, geostrophic motion, Ekman layers, the 6-plane, Rossby waves; topographic waves; two-layer and continuously stratified models, geostrophic adjustment, baroclinic instability. PREREQ: OC 571. Offered alternate years. Not offered 1985-86. OC 573. THEORETICAL PHYSICAL OCEANOGRAPHY III. (4 credits). Ocean circulation theory: scale analysis; parameterization of small-scale motions; barotropic and baroclinic wind driven circulation; Sverdrup's theory; western boundary currents; abyssal circulation; the thermocline models; laboratory models; temporal variability, mid-ocean eddies, seasonal and climatic variability. PREREQ: OC 572. Offered alternate years. Offered 1985-86. OC 574. THEORETICAL PHYSICAL OCEANOGRAPHY IV. (4 credits). Stratified flow, waves, and instabilities: principles of waves, hyperbolic waves, dispersive waves, phase and group velocity; surface gravity waves; dynamics of stably stratified fluids, internal waves, lee waves, finite amplitude motions; hydrodynamic stability; thermal instability, Rayleigh number; stability of parallel flows, Orr Summerfeld equation; effect of stratification on stability. Richardson number. PREREQ: OC 471. Offered alternate years. Offered 1985-86. OC 575. THEORETICAL PHYSICAL OCEANOGRAPHY V. (4 credits). Dynamics of turbulence: dimensional analysis; Reynolds averaging, derivation of turbulence moment equations; turbulent transport; turbulent boundary layers; statistical description; spectral dynamics; applications to geophysical problems. PREREQ: OC 571. Offered alternate years. Offered 1985-86. 236 Oregon State University GPH 505. READING AND CONFERENCE GPH 521. PLANETOLOGY. (3 credits). Review of relevant topics in hysics; theory of the internal constitution of cold gravitating bodies; observational data; models of the earth and other planets involving density, pressure, seismic parameters, chemistry, and temperature; topics in astrophysics and cosmology. Consent of instructor required. Offered alternate years. Offered 1985-86. GPH 530. THEORETICAL SEISMOLOGY I. (3 credits). Wave propagation in one-dimensional structures; stress and strain in liquids and solids; propagation of waves in linearly elastic solids; basic solutions, body waves, surface waves, and propagation of elastic energy; theory of guided waves and waves in layered media. Fundamental oscillation modes of the earth. PREREQ: Differential equations; complex functions. Offered alternate years. Offered 1985-86. GPH 532. OBSERVATIONAL SEISMOLOGY I: EXPLORATION. (3 credits). Methods and techniques used in research and exploration seismology: reflection methods, refraction methods, data reduction, deconvolution, filtering, stacking, interpretation, instrumentation, and field procedures. Consent of instructor required. Offered alternate years. Not offered 1985-86. GPH 546. GEOELECTRICITY I. (3 credits). Fundamentals of electromagnetic theory, Maxwell's equations, individual field equations; stationary fields in a layered half-space; theory of the D.C. methods of exploration, field procedures, and applications. PREREQ: PH 431,432,433 (electromagnetic theory and optics) or consent of instructor. Offered alternate years. Offered 1985-86. GPH 547. GEOELECTRICITY II. (3 credits). Maxwell's equations in the long-wave approximation; diffusion of electromagnetic fields in layered solids; theory of the magneto-telluric and other A. C. methods of geophysical exploration, field procedures, and applications; electromagnetic fields in weak plasmas; topics in aeronomy. Consent of instructor required. Offered alternate years. Offered 1985-86. GPH 548. GEOTHERMOLOGY. (3 credits). Geology, physics, and chemistry of geothermal systems; reservoir mechanics; exploration, production, and utilization of geoheat. Consent of instructor required. Offered alternate years. Not offered 1985-86. GPH 552. PALEOMAGNETISM AND ROCK MAGNETISM. (3 credits).Principles of paleomagnetism and their application to geological and geophysical problems; field procedures and laboratory techniques; origin of remanent magnetism in rocks and the physical and chemical processes which control and affect it; properties of ferri-magnetic minerals that occur in rocks. PREREQ: One year of calculus and one year of physics or consent of instructor. Offered alternate years. Offered 1985-86. GPH 563. PHYSICS OF THE EARTH. (3 credits). Effects of confining pressure, temperature, time, and solutions on properties of rocks; earth and moon in solar system; source materials and their reliabilities for determining nature and composition of the earth; composition of core, crust, and mantle; processes within the earth with special reference to their effect on earthquakes, isostasy, crustal structure, island arcs. PREREQ: Differential equations; two years of physics; one year of geology. Offered alternate years. Not offered 1985-86. GPH 580. GEOPHYSICAL TIME SEQUENCE ANALYSIS. (3 credits). Linear systems theory applied to the analysis of geophysical data. Topics include transforms, rational filters, spectral resolution, theory of least-squares fitting, and multichannel time series. Methods specifically applied to seismic wave propagation, marine magnetic anomalies, and other geophysical data. PREREQ: ST 521. Consent of instructor required. Offered alternate years. Offered 1985-86. GPH 581. GEOPHYSICAL INVERSE THEORY. (3 GPH 533. OBSERVATIONAL SEISMOLOGY II: EARTHQUAKES. (3 credits). Description of earthquakes; types of earthquakes; seismograph theory; seismic ray paths; velocity determinations; shallow and deep earthquakes; magnitude and energies of credits). Survey of techniques for the parameterization of geophysical models, given data sets which may be incomplete and inaccurate. Applications to seismic, magnetic, and gravimetric data. PREREQ: Calculus, linear algebra; consent of instructor. Offered alternate years. Not offered 1985-86. years. Offered 1985-86. GPH 589. SPECIAL TOPICS IN GEOPHYSICS. (1, earthquakes; locating earthquakes; microseisms; seismicity. PREREQ: GPH 530. Offered alternate GPH 540. THE EARTH'S GRAVITY FIELD. (3 credits). Gravity field and gravity potential, earth ell, soid; gravity measurements (sea, land, and space), reduction of gravity measurements; gravity anomalies, isostasy, deviations, from isostatic equilibrium; internal constitution of the earth. PREREQ: Differential equations; two years of physics; one year of geology. Consent of instructor required. Offered alternate years. Offered 1985-86. GPH 542. GEOMAGNETISM. (3 credits). Geomagnetic field and magnetic potential; general morphology, secular change, magnetic storms; magnetic measurements, reduction of magnetic measurements; magnetic anomalies, application to structure and composition of crust, mantle, and core of earth. PREREQ: Differential equations; two years of physics; one year of geology. Consent of instructor required. Offered alternate years. Offered 1985-86. 2, or 3 credits). Consent of instructor required. GPH 590. GEOPHYSICS OF OCEAN BASINS. (3 credits). Current topics concerning geophysical data and the structure and evolution of the oceanic lithosphere. Topics include marine seismology, marine gravity, marine magnetic anomalies, marine heat flow measurements, and the physical and magnetic properties of drilled and dredged rocks. Consent of instructor required.