Introduction to boundary-layer meteorology. Surface energy budgets, structure and evolution of boundary layers, and basic ideas of turbulence theory. Prerequisite: either ATMOS 340 or PHYS 224. Offered: A.

Principles of operating instruments for measuring important atmospheric parameters (e.g., temperature, humidity, aerosol concentration). Concepts of sensitivity, accuracy, representativeness, time response. Manipulation of output data including signal processing and statistical analysis. Experimental design and implementation of the design in actual field experiments is included. Prerequisite: ATMOS 370; either STAT/MATH 390 or Q SCI 381.

Basic forecasting techniques. Application of numerical modeling and statistical approaches. Structure, evolution, and forecasting of convective systems. Radar applications. Diurnal and topographically-forced circulations. Aviation meteorology. Laboratories include extensive practice in forecasting and surface map analysis. Prerequisite: ATMOS 370; ATMOS 442; either STAT/MATH 390 or Q SCI 381. Offered: Sp.

Global atmosphere as a chemical system emphasizing physical factors and chemical processes that give rise to elevated surface ozone, particulate matter, and air toxics; international issues of air pollution transport and changing tropospheric background composition; and regulatory control strategies and challenges. Aimed at science and engineering majors. Offered: jointly with CHEM 458; A.

Evaluation of air-quality models relating air pollution emissions to environmental concentrations. Emphasis on models used for air pollution permits. Emphasizes current problems. Prerequisite: MATH 125. Offered: jointly with CEE 480; W.

Fundamentals of hydrostatics, thermodynamics, radiation, cloud physics, and atmospheric chemistry. Offered: A.

Overview of weather systems; atmospheric observations and data assimilation. Elementary manual and computer-aided synoptic analysis techniques. Interpretation of satellite and ground-based observations. Kinematics. Fronts and frontogenesis; life cycles of extratropical cyclones; related mesoscale phenomena. Numerical weather prediction; interpretation of forecast products. Offered: Sp.

Basic equations governing atmospheric motions and their elementary applications; circulation and vorticity; dynamics of midlatitude disturbances. Offered: A.

Wave dynamics, numerical prediction, development of midlatitude synoptic systems, and general circulation. Prerequisite: either ATMOS 441 or ATMOS 503. Offered: W.

Eulerian equations for mass-motion; Navier-Stokes equation for viscous fluids, Cartesion tensors, stress-strain relations; Kelvin’s theorem, vortex dynamics; potential flows, flows with high-low Reynolds numbers; boundary layers, introduction to singular perturbation techniques; water waves; linear instability theory. Prerequisite: either a course in partial differential equations or permission of instructor. Offered: jointly with AMATH 505/OCEAN 511; A, odd years.

Descriptive, quantitative aspects of earth as biogeochemical system. Study of equilibria, transport processes, chemical kinetics, biological processes; their application to carbon, sulfur, nitrogen, phosphorus, other elemental cycles. Stability of biogeochemical systems; nature of human perturbations of their dynamics. Prerequisite: permission of instructor. Offered: jointly with CHEM 523/OCEAN 523.

Dynamics of rotating stratified fluid flow in the atmosphere/ocean and laboratory analogues. Equations of state, compressibility, Boussinesq approximation. Geostrophic balance, Rossby number. Poincare, Kelvin, Rossby waves, geostrophic adjustment. Ekman layers. Continuously stratified dynamics: Inertia-gravity waves, potential vorticity, quasigeostrophy. Prerequisite: OCEAN 511 or ATMOS 505/AMATH 505. Offered: jointly with OCEAN 512; W.

Structure of the water molecule. Crystallographic structures of ice. Electrical, optical, thermal, and mechanical properties of ice. Growth of ice from vapor and liquid phases. Offered: jointly with ESS 531.

Snow and ice climatology. Formation of the ice crystals in clouds. Snow metamorphism. Transfer of radiative, sensible, and latent heat at snow and ice surfaces. Remote sensing of snow and ice. Growth and melt of sea ice. Climatic records from ice. Prerequisite: permission of instructor. Offered: jointly with ESS 532.

Rheology of snow and ice. Sliding and processes at glacier beds. Thermal regime and motion of seasonal snow, glaciers, and ice sheets. Avalanches and glacier surges. Deformation and drift of sea ice. Response of natural ice masses to change in climate. Prerequisite: permission of instructor. Offered: jointly with ESS 533.

Examines the role of ice and snow in climate. Polar climate dynamics. Polar-global interactions. Modeling snow cover, sea ice, and ice-sheet balance, and flow in the climate system. Prerequisite: permission of instructor. Offered: jointly with ESS 535.

Covers principles of scientific writing; methods of ensuring clarity in writing for scientific journals and research proposals; principles of graph construction; and authorship, peer review, and citations. For graduate students in Earth-science related fields. Credit/no-credit only. Offered: jointly with ESS 519/OCEAN 518; Sp, odd years.

Seminars on current research in advanced topics related to atmospheric and climate science, conducted by faculty and visiting professors/scientists. Includes presentation of doctoral dissertations by department graduate students. For Atmospheric Sciences graduate students only. Prerequisite: permission of department. Credit/no-credit only. Offered: AWSp.

Directed at current research in the subject. For advanced students. Prerequisite: permission of instructor. Credit/no-credit only. Offered: AWSp.

Directed at current research in the subject. For advanced students. Prerequisite: permission of instructor. Credit/no-credit only. Offered: AW.

Directed at current research in the subject. For advanced students. Prerequisite: permission of instructor. Credit/no-credit only. Offered: A.

Seminar for atmospheric scientists, chemists, engineers in problems associated with the chemical composition of the atmosphere. Covers wide variety of topics, ranging from the natural system to urban pollution and global atmospheric change. Prerequisite: ATM S 301 or permission of instructor. Offered: jointly with CEE 553.

Fundamentals of radiative transfer; absorption and scattering by atmospheric gases; elementary applications to constraints on the thermal structure, photochemistry, and remote sensing. Prerequisite: PHYS 225 or permission of instructor. Offered: Sp.

Optical properties and particle absorption and scattering; solutions of radiative transfer equation in multiple scattering atmospheres; applications to atmospheric and surface energy balance and remote sensing. Prerequisite: ATMOS 532/ESS 571 or permission of instructor.

Satellite systems for sensing the atmosphere and climate system. Recovery of atmospheric and surface information from satellite radiance measurements. Applications to research. Prerequisite: ATMOS 532 or ATMOS 533.

Basic concepts of cloud microphysics, water continuity in clouds, cloud dynamics, and cloud models. Prerequisite: ATMOS 501 or permission of instructor. Offered: jointly with ESS 573; Sp.

Techniques of observing storm structure and dynamics by radar and aircraft, observed structures of precipitating cloud systems, comparison of observed structures with cloud models. Prerequisite: either ATMOS 535, ATMOS 504, or ATMOS 509.

Quasi-geostrophic theory, baroclinic instability, symmetric instability, tropical disturbances, frontogenesis, orographic disturbances, convective storms. Prerequisite: ATMOS 509/OCEAN 512 and AMATH 402 or equivalents. Offered: Sp.

Covers the fundamental of chaos theory to help compare and contrast traditional, deterministic forecasting versus ensemble forecasting. Explores the various components of an ensemble prediction system. Introduces decision science to show how to apply probabilistic weather information in optimal decision making. Prerequisite: ATMOS 501; ATMOS 502; and ATMOS 552 or permission of instructor. Offered: Sp.

Requirements of the global angular momentum, heat, mass, and energy budgets upon atmospheric motions as deduced from observations. Study of the physical processes through which these budgets are satisfied. Prerequisite: ATM S 509/OCEAN 512 or permission of instructor. Offered: A.

Turbulence, turbulent fluxes, averaging. Convection and shear instability. Monin-Obukhov similarity theory, surface roughness. Wind profiles. Organized large eddies. Energy fluxes at ocean and land surfaces, diurnal cycle. Convective and stably stratified boundary layers. Cloud-topped boundary layers. Remote sensing. Boundary layer modeling and parameterization. Prerequisite: ATMOS 505, AMATH 505, or OCEAN 511.

Extratropical cyclones and cyclogenesis. Jet streams. Upper waves in the westerlies. Diagnosis of vertical motions. Fronts and frontogenesis. Prerequisite: ATMOS 502 and ATMOS 509/OCEAN 512.

Review of objective analysis techniques commonly applied to atmospheric problems; examples from the meteorological literature and class projects. Superposed epoch analysis, cross-spectrum analysis, filtering, eigenvector analysis, and optimum interpolation techniques. Offered: W.

Provides a critical evaluation of the most commonly applied paleoclimate proxies from the ocean, land, and ice sheets. Offered: jointly with ESS 554/OCEAN 554.

Problems of origin, evolution, and structure of planetary atmospheres, emphasizing elements common to all; roles of radiation, chemistry, and dynamical processes; new results on the atmospheres of Venus, Mars, Jupiter, and other solar system objects in the context of comparative planetology. Offered: jointly with ASTR 555/ESS 581.

Zonally symmetric circulations, planetary waves, equatorial waves, dynamics of the middle atmosphere, trace constituent transport, nonlinear aspects of atmospheric flows. Prerequisite: ATMOS 542 or permission of instructor.

Photochemistry of urban, rural, and marine tropospheric air, and of the natural and perturbed ozone in the middle atmosphere. Unity of the chemistries in these apparently different regimes. Prerequisite: ATMOS 458 or ATMOS 501 or CHEM 457 or permission of instructor. Offered: Sp.

Principles of Earth system modeling. Emphasis on atmosphere, ocean sea ice, and land-surface components. Climate forcing. Appropriate use of models. Topics of current interest including carbon cycle, atmosphere chemistry, and biogeochemistry. Prerequisite: either ATMOS 587/OCEAN 587/ESS 587, ATMOS 504 or ATMOS 505. Instructors: Bitz, Thompson Offered: jointly with ESS 559/OCEAN 558.

Observations and theory of phenomena of the coupled atmosphere-ocean system. El Nino/Southern Oscillation; decadal tropical variability; atmospheric teleconnections; midlatitude atmosphere-ocean variability. Overview of essential ocean and atmospheric dynamics, where appropriate. Prerequisite: ATMOS 509/OCEAN 512. Credit/no-credit only. Offered: jointly with OCEAN 560.

Physics and chemistry of particles and droplets in the atmosphere. Statistics of size distributions, mechanics, optics, and physical chemistry of atmospheric aerosols. Brownian motion, sedimentation, impaction, condensation, and hydroscopic growth. Prerequisite: permission of instructor.

In this course we will discuss the foundations of mathematical models for atmospheric chemistry. Our focus will be on three-dimensional numerical models that simulate transport, chemistry, emissions, and deposition of chemical species in the atmosphere. Prerequisite: ATMOS 558

Physical processes that determine the climate of Earth and its past and future changes. Greenhouse effect. Climate modeling. Radiative and dynamical feedback processes. Orbital parameter theory. Critical analysis of climate change predictions. Prerequisite: permission of instructor. Offered: A.

Observations and underlying dynamics of large-scale tropical circulations. Factors that determine regions of large-scale persistent precipitation in the tropics, thermal forcing of atmospheric circulations by these regions, and temporal variability of the forcing and response. Prerequisite: ATMOS 509/OCEAN 512, ATMOS 542.

Numerical methods for time-dependent differential equations, including explicit and implicit methods for hyperbolic and parabolic equations. Stability, accuracy, and convergence theory. Spectral and pseudospectral methods. Prerequisite: either AMATH 581, AMATH 584/MATH 584, AMATH 585/MATH 585, or permission of instructor. Offered: jointly with AMATH 586/MATH 586; Sp.

Topics of current interest including: efficient time differencing, semi-implicit and multiple time-step techniques. Semi-lagrangian schemes. Treatment of poorly resolved gradients. Flux-corrected transport. Positive definite advection schemes. Aliasing error and nonlinear instability. Wave permeable boundary conditions. Prerequisite: ATMOS 581 and AMATH 586 or MATH 586.

Knowledge of past/future patterns of climate to improve Pacific Northwest resource management. Topics include the predictability of natural/human-caused climate changes; past societal reactions to climate impacts on water, fish, forest, and coastal resources; how climate and public policies interact to affect ecosystems and society. Offered: jointly with ENVIR 585/ESS 585/SMEA 585; Sp.

Weekly lectures focusing on a particular aspect of climate (topic to change each year) from invited speakers (both UW and outside), plus one or two keynote speakers, followed by class discussion. Credit/no-credit only. Offered: jointly with ESS 586/OCEAN 586.

Examines Earth’s climate system; distribution of temperature, precipitation, wind ice, salinity, and ocean currents; fundamental processes determining Earth’s climate; energy and constituent transport mechanisms; climate sensitivity; natural climate variability on interannual to decadal time scales; global climate models; predicting future climate. Offered: jointly with ESS 587/OCEAN 587.

Oceanic and terrestrial biogeochemical processes controlling atmospheric CO2 and other greenhouse gases. Records of past changes in the earth’s carbon cycle from geological, oceanographic, and terrestrial archives. Anthropogenic perturbations to cycles. Develop simple box models, discuss results of complex models. Offered: jointly with ESS 588/OCEAN 588; W.

Evidence for past changes in land and sea surface temperature, in precipitation and atmospheric dynamics, and in ocean circulation: both long and interannual timescales. Paleoclimate modeling and theory. Time series analysis and climate noise. Rapid climate change. Statistical reconstruction of interannual variability. Offered: jointly with ESS 589/OCEAN 589.

Lecture series on topics of major importance in the atmospheric sciences. Prerequisite: permission of instructor.

Focuses on how to communicate climate science to many different audiences through careful construction of figures and through written and oral communication. Credit/no-credit only. Offered: jointly with ESS 593/OCEAN 593; W.

Climate capstone directed by a mentor, may be a group effort, and may encompass curriculum development, internships, workshop organization, etc., capturing interdisciplinary aspects of climate science and effective communication of climate science. Offered: jointly with ESS 596/OCEAN 596; AWSpS.

Credit/no-credit only. Offered: AWSpS.

Offered: AWSpS.

Offered: AWSpS.

Presents visions of the future when the climate crisis is solved. Describes paths towards reaching these goals. Solutions include building a resilient society with clean energy, sustainable agriculture, climate justice, and a just transition for workers.

The earth’s atmosphere with emphasis on weather observations and forecasting. Daily weather map discussions. Highs, lows, fronts, clouds, storms, jetstreams, air pollution, and other features of the atmosphere. Physical processes involved in weather phenomena. Intended for non-majors.

Explores the science, history, and impacts of thunderstorms and hurricanes. Includes basic processes responsible for thunderstorms and hurricanes and for the lightning, hail, high winds, and storm surges that accompany them. Presents significant historical examples, along with the impact on human activities, strategies for personal safety, and societal adaptation. Offered: Sp.

Includes a broad overview of the science of global warming. Discusses the causes, evidence, future projections, societal and environmental impacts, and potential solutions. Introduces the debate on global warming with a focus on scientific issues. Offered: AWSp.

The nature of the global climate system. Factors influencing climate including interactions among the atmosphere, oceans, solid earth, and biosphere. Stability and sensitivity of climate system. Global warming, ozone depletion, and other human influences. Intended for nonmajors. Offered: AWSp.

Introduction to air pollution on local, regional, and global scales, with focus on the sources, transformation, and dispersion of pollutants responsible for urban smog, acid rain, climate change, and the ozone hole. Health and environmental effects of air pollutants, technological solutions, and international policy regulations.

Focuses on current research in the atmospheric and climate science and the related implications for public health, business, and environmental policy. Credit/no-credit only.

Includes participation in a national weather forecast contest; weekly discussion on forecast models, forecasting methods, and unique considerations for specific forecast locations. Prerequisite: either ATMOS 101 or ATMOS 301. Credit/no-credit only. Offered: AW.

Focuses on the connections between ecosystems and climate including physical, chemical and biological interactions. Investigates global scale implications and the expected response of a coupled earth system under past and future climate change. Recommended: MATH 120 or equivalent; and either PHYS 114; PHYS 115; PHYS 116, or PHYS 121; PHYS 122; PHYS 123 Offered: A.

Credit/no-credit only. Offered: AWSpS.

Students will work in teams to create their own video games or interactive digital experience relating to climate change or other pressing environmental issues. Credit/no-credit only. Offered: AWSpS.

Focuses on current research in the atmospheric and climate science and the related implications for public health, business, and environmental policy. Credit/no-credit only.

Includes participation in a national weather forecast contest; weekly discussion on forecast models, forecasting methods, and unique considerations for specific forecast locations. Prerequisite: either ATMOS 101 or ATMOS 301. Credit/no-credit only. Offered: AW.

Composition and structure of the atmosphere. Clouds and weather phenomena. Thermodynamic processes. Solar and terrestrial radiation. Air motions. Daily weather discussions and forecasts. For majors and nonmajors. Prerequisite: minimum grade of 2.0 in each of MATH 124; MATH 125; MATH 126; PHYS 121; PHYS 122; and PHYS 123. Offered: A.

Introduces students to data analysis in the atmospheric sciences using modern programming languages and techniques. Provides hands-on experience through the exploration of atmospheric datasets. Offered: A.

Evolution and present state of earth’s climate. Emphasis on physical processes determining the climate of the earth’s atmosphere and surface: radiative transfer, energy balance, hydrologic cycle, and atmospheric and oceanic energy transport. Factors controlling climate change. Prerequisite: minimum of grade of 2.0 each of MATH 124; MATH 125; MATH 126; PHYS 121; PHYS 122; PHYS 123. Offered: Sp.

Examines thermodynamics and hydrostatics. Studies cloud and precipitation processes with emphasis on the microphysics. Prerequisite: ATMOS 301. Offered: W.

Comprehensive introduction to atmospheric radiation, including solar and infrared radiation, the earth’s radiation budget, and remote sensing. Prerequisite: ATMOS 301. Offered: Sp.

Focuses on the connections between ecosystems and climate including physical, chemical and biological interactions. Investigates global scale implications and the expected response of a coupled earth system under past and future climate change. Recommended: MATH 120 or equivalent; and either PHYS 114; PHYS 115; PHYS 116, or PHYS 121; PHYS 122; PHYS 123 Offered: A.

Review of basic principles of physical chemistry; evolution and chemical composition of earth’s atmosphere; half-life, residence and renewal time; sources, transformation, transport and sinks of gases in the troposphere; atmospheric aerosols; chemical cycles; air pollution; stratospheric chemistry. Offered: Sp.

Students practice presenting with a green chroma-key screen and camera, and write a daily weather blog for publication. Discusses the history and future of media-driven meteorology. Invited speakers present, and students take field trips to a local television station and the National Weather Service. Prerequisite: ATMOS 101 or ATMOS 301.

Structure and evolution of extratropical cyclones, fronts, and convective systems. Surface and upper air analysis techniques. Radar and satellite data. Real-world applications of basic dynamical principles. Introduction to operational products and forecasting. Prerequisite: ATM S 301. Offered: W.

Applies weather and climate models to solve problems in atmospheric sciences. Includes visualization of atmospheric phenomena and Earth’s energy and hydrologic cycles; and basics in numerical modeling and high-performance computing. Prerequisite: MATH 126; PHYS 122; either ATMOS 101, ATMOS 111, ATMOS 211, ATMOS 301, ASTR 150, ASTR 321, or ESS 201. Offered: W.

Review and discussion of selected problems in atmospheric and climate science. Introduction to research methods. Presentation of a research paper. Offered: AWSpS.

Introduction to boundary-layer meteorology. Surface energy budgets, structure and evolution of boundary layers, and basic ideas of turbulence theory. Prerequisite: either ATMOS 340 or PHYS 224. Offered: A.

Basic equations governing atmospheric motions and their elementary applications; circulation and vorticity; dynamics of midlatitude disturbances. Prerequisite: either AMATH 353 or MATH 309; MATH 324. Offered: A.

Wave dynamics, numerical prediction, development of midlatitude synoptic systems, and general circulation. Includes laboratory exercises. Prerequisite: ATMOS 441. Offered: W.

Covers the fundamental of chaos theory to help compare and contrast traditional, deterministic forecasting versus ensemble forecasting. Explores the various components of an ensemble prediction system. Introduces decision science to show how to apply probabilistic weather information in optimal decision making. Prerequisite: ATMOS 370; either STAT/MATH 390 or Q SCI 381; AMATH 301. Offered: Sp.

Principles of operating instruments for measuring important atmospheric parameters (e.g., temperature, humidity, aerosol concentration). Concepts of sensitivity, accuracy, representativeness, time response. Manipulation of output data including signal processing and statistical analysis. Experimental design and implementation of the design in actual field experiments is included. Prerequisite: ATMOS 370; either STAT/MATH 390 or Q SCI 381.

Basic forecasting techniques. Application of numerical modeling and statistical approaches. Structure, evolution, and forecasting of convective systems. Radar applications. Diurnal and topographically-forced circulations. Aviation meteorology. Laboratories include extensive practice in forecasting and surface map analysis. Prerequisite: ATMOS 370; ATMOS 442; either STAT/MATH 390 or Q SCI 381. Offered: Sp.

Global atmosphere as a chemical system emphasizing physical factors and chemical processes that give rise to elevated surface ozone, particulate matter, and air toxics; international issues of air pollution transport and changing tropospheric background composition; and regulatory control strategies and challenges. Aimed at science and engineering majors. Offered: jointly with CHEM 458; A.

Students learn to create comprehensive forecasts for the Seattle area, design graphics to communicate the forecasts, post forecasts on social media accounts, and become comfortable with public speaking and communicating complex scientific ideas to a wide audience. Use for students participating in the DawgCast Club. Credit/no-credit only. Offered: AWSp.

Weekly lectures focusing on a particular aspect of climate from invited speakers, complemented by class discussion, readings, and final paper. Promotes interdisciplinary understanding of climate concepts. Prerequisite: either ESS 201, ATMOS 211, or ATMOS 321. Offered: jointly with ESS 475/OCEAN 475; A.

Evaluation of air-quality models relating air pollution emissions to environmental concentrations. Emphasis on models used for air pollution permits. Emphasizes current problems. Prerequisite: MATH 125. Offered: jointly with CEE 480; W.

Examines Earth’s climate system; distribution of temperature, precipitation, wind ice, salinity, and ocean currents; fundamental processes determining Earth’s climate; energy and constituent transport mechanisms; climate sensitivity; natural climate variability on interannual to decadal time scales; global climate models; predicting future climate. Prerequisite: ATMOS 321.

Reviews and analyzes current weather situations and forecasts. Promotes active discussion between the leader and attendees, and provides exposure to practical aspects of forecasting, the structure of synoptic and local weather phenomena, and applications of basic meteorological concepts. Credit/no-credit only. Offered: AWSp.

Used for various special topics.

Students will work in teams to create their own video games or interactive digital experience relating to climate change or other pressing environmental issues. Credit/no-credit only. Offered: AWSpS.

Internship experience with a public agency or private company, supervised and approved by a faculty member. Requires preparation of a professional report reflecting on the experience. Credit/no-credit only. Offered: AWSpS.

Students synthesize prior knowledge and experience gained through hands-on, applied work with academic research or off campus internship experience under the guidance of a faculty advisor. Students refine their writing skills and practice their presentation skills by conveying information orally and visually by making a formal presentation. Prerequisite: ATMOS 497 or ATMOS 499; recommended: Internship or Research Experience

Individual research supervised by a faculty member. May involve laboratory work, fieldwork, or surveys. Credit/no-credit only. Offered: AWSpS.