Ocean Engineering (OE)

OE 817 - Marine Robotics and Applications

Credits: 3

This course covers (lecture/lab format) the broad spectrum of marine vehicles and applications, as well as what is involved in designing and building robotic vehicles for specific missions. Course topics include: marine applications, sensors for marine environments, vehicle subsystems, ocean and open water environment, dynamic modeling and control, and design/fabrication/testing. Various invited speakers (both scientists and engineers) provide learning modules on various marine robotic related topics. Graduate students will be assigned extra project work.

Equivalent(s): ME 817

Grade Mode: Letter Grading

OE 820 - Design of Recirculating Aquaculture Systems

Credits: 3

The purpose of this course is to provide a practical engineering approach to the design of land-based, recirculating aquaculture systems. The course includes an introductory background on the state of our global seafood industries and the need for sustainable production approaches in fresh, brackish, and saltwater environments with various types of systems presently in use. With a focus on recirculating aquaculture systems, this course will include topics such as environmental chemistry and water quality, stoichiometric analyses, nitrification, the potential of hydrogen, temperature, dissolved oxygen, carbon dioxide, the carbonate cycle and alkalinity. A systems design approach will then be covered to include developing plans for assessing biomass growth, system oxygen consumption and total nitrogen and carbon dioxide production. System design will consider processes associated with tank hydrodynamics, waste settling, solids removal, biofiltration, UV treatment, temperature control, aeration, degassing, pumps, and piping systems. Mass balance approaches through control volumes will be examined. A hands-on, student led system design project will be required and examined using engineering economic principles such as the time value of money, inflation, taxes, and internal rates of return. The use of computer tools will be necessary. To distinguish OE 820 from the OE 720 level students, homework assignments, exams, and course projects will include additional in-depth components. Graduate students in the class will also be expected to have a suitable background in mathematics, physics, and chemistry commensurate with the UNH courses MATH 426, PHYS 408, and CHEM 405.

Grade Mode: Letter Grading

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OE 853 - Ocean Hydrodynamics

Credits: 3

Fundamental concepts of fluid mechanics as applied to the ocean; continuity; Euler and Navier-Stokes equations; Bernoulli equation; stream function, potential function; momentum theorem; turbulence and boundary layers are developed with ocean applications.

Prerequisite(s): MATH 527 with a minimum grade of D- and (CEE 650 with a minimum grade of D- or ME 608 with a minimum grade of D-).

Grade Mode: Letter Grading

OE 854 - Ocean Waves and Tides

Credits: 4

Small amplitude, linear wave theory, standing and propagating waves, wave energy, refraction, diffraction, transformation in shallow water, statistics of random seas, spectral energy density, generating eave time series using the random phase methods forces on structures, Froude scaling of wave tank experiments, nonlinear effects. Description of tides as long waves, equilibrium tide, mathematical modeling including friction, nonlinear effects, and Coriolis forces, tidal analysis, the Great Bay Estuarine System as a case study. Requires knowledge of calculus-based physics and differential equations.

Equivalent(s): EOS 854

Grade Mode: Letter Grading

OE 857 - Coastal Engineering and Processes

Credits: 3

Introduction to small-amplitude and finite-amplitude wave theories. Wave forecasting by significant wave method and wave spectrum method. Coastal processes and shoreline protection. Wave forces and wave structure interaction. Introduction to mathematical and physical modeling. Requires knowledge of fluid dynamics.

Grade Mode: Letter Grading

OE 858 - Design of Ocean Structures

Credits: 3

The foundational information necessary for the design of ocean structures. Topics include floating body, fixed body and moored line hydrostatics; wave forces on small and large bodies; dynamic response of floating bodies; and pile and gravity foundation geotechnics. Requires knowledge of mechanics of materials, fluid mechanics, differential equations, and ocean waves and tides.

Grade Mode: Letter Grading

OE #864 - Spectral Analysis of Geophysical Time Series Data

Credits: 4

This course considers basic exploratory techniques and in-depth spectral analysis for estimation with geophysical time series data, including calculations of confidence intervals and significance testing. This course prepares students for interpreting time series data with science and engineering applications. Topics include sampling theory, filtering, statistics, probability, spectral analysis, and empirical orthogonal functions. Students gain experience in code-writing for the analysis of time series data. Students enrolled at the 800 level provide data for analysis. One year of calculus is required.

Equivalent(s): ESCI 864

Grade Mode: Letter Grading

OE 865 - Underwater Acoustics

Credits: 3

An introduction to acoustics in the ocean. Fundamental acoustic concepts including the simple harmonic oscillator, waves on strings, and the acoustic wave equation; the sonar equation; sound generation and reception by underwater acoustic transducers and arrays; basics of sound propagation; reflection and scattering from ocean boundaries. Spring semester; offered every year; satisfies core course requirement in Ocean Engineering. Requires knowledge of differential equations and college physics.

Grade Mode: Letter Grading

OE 870 - Geodesy for Ocean Mapping

Credits: 3

Ocean mapping requires precise positioning and navigation. For this we need to precisely know Earth's shape, gravity field, and orientation in space. Data used for this purpose include satellite-based positioning, gravity measurements, and ground surveys. Reference frames can then be created allowing the integration of geometric observations for the creation of mapping products. One year of calculus and one year of college physics prior to taking this course.

Grade Mode: Letter Grading

OE 871 - Positioning for Ocean Mapping

Credits: 4

Ocean mapping requires precise positioning and navigation. For this we need to precisely know Earth's shape, gravity field, and orientation in space. Data used for this purpose include satellite-based positioning, gravity measurements, and ground surveys. Reference frames can then be created allowing the integration of geometric observations for the creation of mapping products. This course will focus on this integration of measurements and the uncertainty associated to them.

Prerequisite(s): OE 770 with a minimum grade of D- or OE 870 with a minimum grade of B- or ESCI 870 with a minimum grade of B-.

Equivalent(s): ESCI 871

Grade Mode: Letter Grading

OE 874 - Integrated Seabed Mapping Systems

Credits: 4

Overview of typical applications that involve mapping the sediment-water interface in the ocean and adjacent waters. Emphasis on defining the task-specific resolution and accuracy requirements. Fundamentals of acoustics relevant to seabed mapping. Progressions through typical configurations involving single beam, sidescan, phase differing and multibeam systems. Integration of asynchronous 3D position, orientation and sound speed measurements with sonar-relative acoustic travel times and angles. Analysis of impact offsets, mis-alignments and latency in all integrated sensors.

Equivalent(s): ESCI 874

Grade Mode: Letter Grading

OE 875 - Advanced Topics in Ocean Mapping

Credits: 4

The second of two courses covering the principles and practices of hydrography and ocean mapping. In this course the following topics are covered: Verification and Field QA/QC, Water Levels (Tides); Mapping Standards; Survey Planning, Execution and Reporting; Terrain Analysis; Optical Remote Sensing; Data Presentation; Seafloor Characterization; Electronic Navigational Charts; Hydrography for Nautical Charting, Product Liability and contracts; and the United Nations Convention for the Law of the Sea (UNCLOS).

Prerequisite(s): (OE 874 with a minimum grade of B- or ESCI 874 with a minimum grade of B-) and MATH 831 (may be taken concurrently) with a minimum grade of B-.

Equivalent(s): ESCI 875

Grade Mode: Letter Grading

OE 892 - Master's Project

Credits: 3

The student works with a faculty member during one or two semesters on a well-defined research and/or original design project. A written report and seminar are presented. IA (continuous grading).

Grade Mode: Graduate Credit/Fail grading

OE #895 - Special Topics

Credits: 1-4

New or specialized courses and/or independent study. May be repeated barring duplication of subject.

Repeat Rule: May be repeated up to unlimited times.

Grade Mode: Letter Grading

OE 899 - Master's Thesis

Credits: 1-6

Master's Thesis.

Repeat Rule: May be repeated for a maximum of 6 credits.

Grade Mode: Graduate Credit/Fail grading

OE #965 - Advanced Underwater Acoustics

Credits: 3

Focused topics varying from year to year depending on student interests and need. Topics may include one or more of the following: sonar systems engineering; underwater acoustic transducers; volume and surface scattering; underwater acoustic propagation; fisheries acoustics. Spring semester; offered every other year.

Prerequisite(s): OE 765 with a minimum grade of D- or OE 865 with a minimum grade of B-.

Repeat Rule: May be repeated for a maximum of 9 credits.

Grade Mode: Letter Grading

OE 972 - Hydrographic Field Course

Credits: 4

A lecture, lab, and field course on the methods and procedures for the acquisition and processing of hydrographic and ocean mapping data. Practical experience in planning and conducting hydrographic surveys. Includes significant time underway (day trips and possible multi-day cruises) aboard survey vessel(s).

Prerequisite(s): OE 875 with a minimum grade of B- and OE 871 with a minimum grade of B-.

Equivalent(s): ESCI 972

Grade Mode: Letter Grading

OE 990 - Ocean Seminars I

Credits: 1

Various topics, including marine systems design, marine vehicle operation, data collecting and processing, and marine law.

Grade Mode: Graduate Credit/Fail grading

OE 991 - Ocean Seminars II

Credits: 1

Various topics, including marine systems design, marine vehicle operation, data collecting and processing, and marine law.

Grade Mode: Graduate Credit/Fail grading

OE 995 - Graduate Special Topics

Credits: 1-4

Investigation of graduate-level problems or topics in ocean engineering.

Repeat Rule: May be repeated for a maximum of 16 credits.

Grade Mode: Letter Grading

OE 998 - Independent Study

Credits: 1-4

Independent theoretical and/or experimental investigation of an ocean engineering problem under the guidance of a faculty member.

Grade Mode: Letter Grading

OE 999 - Doctoral Research

Credits: 0

Doctoral Research.

Grade Mode: Graduate Credit/Fail grading

Special Fee: Yes