Water supply is a problem of worldwide concern: more than 1 billion …
Water supply is a problem of worldwide concern: more than 1 billion people do not have reliable access to clean drinking water. Water is a particular problem for the developing world, but scarcity also impacts industrial societies. Water purification and desalination technology can be used to convert brackish ground water or seawater into drinking water. The challenge is to do so sustainably, with minimum cost and energy consumption, and with appropriately accessible technologies. This subject will survey the state-of-the-art in water purification by desalination and filtration. Fundamental thermodynamic and transport processes which govern the creation of fresh water from seawater and brackish ground water will be developed. The technologies of existing desalination systems will be discussed, and factors which limit the performance or the affordability of these systems will be highlighted. Energy efficiency will be a focus. Nanofiltration and emerging technologies for desalination will be considered. A student project in desalination will involve designing a well-water purification system for a village in Haiti.
Water supply is a problem of worldwide concern: more than 1 billion …
Water supply is a problem of worldwide concern: more than 1 billion people do not have reliable access to clean drinking water. Water is a particular problem for the developing world, but scarcity also impacts industrial societies. Water purification and desalination technology can be used to convert brackish ground water or seawater into drinking water. The challenge is to do so sustainably, with minimum cost and energy consumption, and with appropriately accessible technologies. This subject will survey the state-of-the-art in water purification by desalination and filtration. Fundamental thermodynamic and transport processes which govern the creation of fresh water from seawater and brackish ground water will be developed. The technologies of existing desalination systems will be discussed, and factors which limit the performance or the affordability of these systems will be highlighted. Energy efficiency will be a focus. Nanofiltration and emerging technologies for desalination will be considered. A student project in desalination will involve designing a well-water purification system for a village in Haiti.
The course covers the basic techniques for evaluating the maximum forces and …
The course covers the basic techniques for evaluating the maximum forces and loads over the life of a marine structure or vehicle, so as to be able to design its basic configuration. Loads and motions of small and large structures and their short-term and long-term statistics are studied in detail and many applications are presented in class and studied in homework and laboratory sessions. Issues related to seakeeping of ships are studied in detail. The basic equations and issues of maneuvering are introduced at the end of the course. Three laboratory sessions demonstrate the phenomena studied and provide experience with experimental methods and data processing. This course was originally offered in Course 13 (Ocean Engineering) as 13.42.
This course covers the complete cycle of designing an ocean system using …
This course covers the complete cycle of designing an ocean system using computational design tools for the conceptual and preliminary design stages. Students complete the projects in teams with each student responsible for a specific subsystem. Lectures cover such topics as hydrodynamics; structures; power and thermal aspects of ocean vehicles; environment, materials, and construction for ocean use; and generation and evaluation of design alternatives. The course focuses on innovative design concepts chosen from high-speed ships, submersibles, autonomous vehicles, and floating and submerged deep-water offshore platforms. Lectures on ethics in engineering practice are included, and instruction and practice in oral and written communication is provided.
Project lesson plan involving detecting floating marine debris. Connections to the oceans' …
Project lesson plan involving detecting floating marine debris. Connections to the oceans' garbage patches. Resource using Micro:bit and extension equipment to wire devices and Microsoft Makecode to code the Micro:bit to perform processes. Engineering Design Process is used to design a floating platform to hold and protect all equipment from water while it performs its functions.
In this problem-based learning (PBL) activity, students take on the role of …
In this problem-based learning (PBL) activity, students take on the role of a student research scientist and explore the role of solar energy in determining climate, focusing on the urban heat island effect. Students conduct research and compare temperatures between two cities, and determine the factors that are responsible for the difference exhibited between them. The lesson is supported by teacher notes, answer key, glossary and an appendix with information about using PBL in the classroom. This is the third of three activities in Investigating the Climate System: Energy, a Balancing Act, and serves as an authentic assessment for all three modules.
This resource is a video abstract of a research paper created by …
This resource is a video abstract of a research paper created by Research Square on behalf of its authors. It provides a synopsis that's easy to understand, and can be used to introduce the topics it covers to students, researchers, and the general public. The video's transcript is also provided in full, with a portion provided below for preview:
"Biodiversity keeps our planet stable. Each species, no matter how small, plays an important role in this global balancing act. That’s why the current pace of biodiversity loss is so alarming. Unfortunately, slowing that pace is extremely difficult. Scientists must first take on the virtually impossible task of measuring the richness and variety of all life on earth—the tools for which are prone to error. Now, researchers have applied a technique that promises estimates that more closely reflect true biodiversity. Proven insightful for stony coral species found throughout the world, the approach could potentially be extended to other animals and plants. Researchers typically use two types of methods to measure biodiversity: by consulting occurrence datasets, which describe points where species have been physically counted, or by combining maps describing geographical ranges where a species is predicted to occur. Each has its own drawbacks. Occurrence datasets tend to be incomplete..."
The rest of the transcript, along with a link to the research itself, is available on the resource itself.
In this project, students perform library research on an assigned marine animal, …
In this project, students perform library research on an assigned marine animal, create a formatted poster of their topic, and share with their classmates what they've learned in a poster session, conducted in the way of poster sessions at science conferences. Afterward, students complete a written assignment where they are asked to reflect on their experience as a participant in a community of science students, their focused learning on their own marine animal, their larger learning about the diversity of marine life from their poster session participation, and what it implies about the intrinsic value of the ocean realm, and the need for conservation. The outcomes for this assignment are aligned with course-specific outcomes articulated in the Minnesota Transfer Curriculum. They are:
Synthesize central concepts from assigned readings of scientific literature in written assignments. Discuss/compare characteristics of diverse environments in the context of ocean science. Interpret data generated by oceanographic techniques, and present written and oral summaries of their findings. Explain the basic structure and function of the ocean realm, the impact of humans on it, and the impact of the ocean realm on humans.
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Introduction to dynamics and vibration of lumped-parameter models of mechanical systems. Three-dimensional …
Introduction to dynamics and vibration of lumped-parameter models of mechanical systems. Three-dimensional particle kinematics. Force-momentum formulation for systems of particles and for rigid bodies (direct method). Newton-Euler equations. Work-energy (variational) formulation for systems particles and for rigid bodies (indirect method). Virtual displacements and work. Lagrange’s equations for systems of particles and for rigid bodies. Linearization of equations of motion. Linear stability analysis of mechanical systems. Free and forced vibration of linear damped lumped parameter multi-degree of freedom models of mechanical systems. Application to the design of ocean and civil engineering structures such as tension leg platforms. This subject was originally offered in Course 13 (Department of Ocean Engineering) as 13.013J. In 2005, ocean engineering became part of Course 2 (Department of Mechanical Engineering), and this subject merged with 2.003.
This course begins with a study of the role of dynamics in …
This course begins with a study of the role of dynamics in the general physics of the atmosphere, the consideration of the differences between modeling and approximation, and the observed large-scale phenomenology of the atmosphere. Only then are the basic equations derived in rigorous manner. The equations are then applied to important problems and methodologies in meteorology and climate, with discussions of the history of the topics where appropriate. Problems include the Hadley circulation and its role in the general circulation, atmospheric waves including gravity and Rossby waves and their interaction with the mean flow, with specific applications to the stratospheric quasi-biennial oscillation, tides, the super-rotation of Venus’ atmosphere, the generation of atmospheric turbulence, and stationary waves among other problems. The quasi-geostrophic approximation is derived, and the resulting equations are used to examine the hydrodynamic stability of the circulation with applications ranging from convective adjustment to climate.
This animation depicts real-time wind speed and direction at selected heights above …
This animation depicts real-time wind speed and direction at selected heights above Earth's surface, ocean surface currents, and ocean surface temperatures and anomalies.
DATA: Digital Elevation Model Data. TOOL: GeoMapApp. SUMMARY: Explore a timeline about …
DATA: Digital Elevation Model Data. TOOL: GeoMapApp. SUMMARY: Explore a timeline about how we have learned about the oceans. Construct a profile across the Atlantic Ocean and create 3-D visualizations of the seafloor.
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This short video uses animated imagery from satellite remote sensing systems to …
This short video uses animated imagery from satellite remote sensing systems to illustrate that Earth is a complex, evolving body characterized by ceaseless change. Adapted from NASA, this visualization helps explain why understanding Earth as an integrated system of components and processes is essential to science education.
Our planet is becoming hot. In fact, Earth may be warming faster …
Our planet is becoming hot. In fact, Earth may be warming faster than ever before. This warming will challenge society throughout the 21st century. How do we cope with rising seas? How will we prepare for more intense hurricanes? How will we adapt to debilitating droughts and heat waves? Scientists are striving to improve predictions of how the environment will change and how it will impact humans. Earth in the Future: Predicting Climate Change and Its Impacts Over the Next Century is designed to provide the state of the art of climate science, the impact of warming on humans, as well as ways we can adapt. Every student will understand the challenges and opportunities of living in the 21st century.
Our planet is becoming hot. In fact, Earth may be warming faster …
Our planet is becoming hot. In fact, Earth may be warming faster than ever before. This warming will challenge society throughout the 21st century. How do we cope with rising seas? How will we prepare for more intense hurricanes? How will we adapt to debilitating droughts and heat waves? Scientists are striving to improve predictions of how the environment will change and how it will impact humans. Earth in the Future: Predicting Climate Change and Its Impacts Over the Next Century is designed to provide the state of the art of climate science, the impact of warming on humans, as well as ways we can adapt. Every student will understand the challenges and opportunities of living in the 21st century.
This activity will help students to identify and analyze factors contributing to …
This activity will help students to identify and analyze factors contributing to Earth's climate systems.
Provenance: Beverly Owens, Cleveland Early College High School Reuse: This item is offered under a Creative Commons Attribution-NonCommercial-ShareAlike license http://creativecommons.org/licenses/by-nc-sa/3.0/ You may reuse this item for non-commercial purposes as long as you provide attribution and offer any derivative works under a similar license.
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Hands-on laboratory activity that allows students to investigate the effects of distance …
Hands-on laboratory activity that allows students to investigate the effects of distance and angle on the input of solar radiation at Earth's surface, the role played by albedo, the heat capacity of land and water, and how these cause the seasons. Students predict radiative heating based on simple geometry and experiment to test their hypotheses.
Individual project designed to combine basic oceanographic concepts in the creation of …
Individual project designed to combine basic oceanographic concepts in the creation of a travel brochure. Involves some group interaction, but project is individual. Can be done online or in a face-to-face class. Best completed at midterm or later in the semester so that most concepts have been introduced.
LEARNING OUTCOMES
Describe major oceanic processes and evaluate their influence on the coastal environment. 2Use global data on climate and wind patterns to quantify and describe conditions at various specific coastal sites.
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This video shows 15 years of data obtained via Polar-orbiting satellites that …
This video shows 15 years of data obtained via Polar-orbiting satellites that are able to detect subtle differences in ocean color, allowing scientists to see where there are higher concentrations of phytoplankton - a proxy for the concentration of chlorophyll in the ocean.
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