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  • Dispersion
Advanced Fluid Dynamics of the Environment, Fall 2002
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Theoretical topics of fluid dynamics relevant to natural phenomena or man-made hazards ... More

Theoretical topics of fluid dynamics relevant to natural phenomena or man-made hazards in water and atmosphere. Basic law of fluid motion. Scaling and approximations. Slow flows, with applications to drag on a particle and mud flow on a slope. Boundary layers: jets and plumes in pure fluids or in porous media. Thermal and buoyancy effects, selective withdrawal and internal waves. Transient boundary layers in impulsive flows or waves. Induced streaming and mass transport. Dispersion in steady flows or in waves. Effects of earth rotation on coastal flows. Wind induced flow in shallow seas. Stratified seas and coastal upwelling. Less

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Subject:
Environmental Science
Material Type:
Full Course
Homework and Assignments
Lecture Notes
Syllabi
Other
Provider:
M.I.T.
Provider Set:
MIT OpenCourseWare
Author:
Mei, Chiang C.
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Advanced Partial Differential Equations with Applications, Fall 2009
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" The focus of the course is the concepts and techniques for ... More

" The focus of the course is the concepts and techniques for solving the partial differential equations (PDE) that permeate various scientific disciplines. The emphasis is on nonlinear PDE. Applications include problems from fluid dynamics, electrical and mechanical engineering, materials science, quantum mechanics, etc." Less

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Subject:
Algebra
Material Type:
Activities and Labs
Assessments
Full Course
Lecture Notes
Provider:
M.I.T.
Provider Set:
MIT OpenCourseWare
Author:
Rosales, Rodolfo R.
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Forecasting Dust Storms - Version 2
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Forecasting Dust Storms Version 2 provides background and operational information about dust ... More

Forecasting Dust Storms Version 2 provides background and operational information about dust storms. The first part of the module describes dust source regions, the life cycle of a dust storm, and the major types of dust storms, particularly those found in the Middle East. The second part presents a process for forecasting dust storms and applies it to a case in the Middle East. Although the process refers to U.S. Department of Defense models and tools, it can easily be adapted to other forecast requirements and data sources. Note that this module is an updated version of the original one published in 2003. Less

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Subject:
Environmental Science
Life Science
Ecology
Forestry and Agriculture
Astronomy
Atmospheric Science
Chemistry
Physics
Material Type:
Data
Full Course
Images and Illustrations
Instructional Material
Interactive
Lecture Notes
Simulations
Provider:
UCAR Staff
Provider Set:
COMET/MetEd Program Collection
DLESE Community Collection
Author:
COMET
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Groundwater Hydrology, Fall 2005
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Fundamentals of subsurface flow and transport, emphasizing the role of groundwater in ... More

Fundamentals of subsurface flow and transport, emphasizing the role of groundwater in the hydrologic cycle, the relation of groundwater flow to geologic structure, and the management of contaminated groundwater. Topics include: Darcy equation, flow nets, mass conservation, the aquifer flow equation, heterogeneity and anisotropy, storage properties, regional circulation, unsaturated flow, recharge, stream-aquifer interaction, well hydraulics, flow through fractured rock, numerical models, groundwater quality, contaminant transport processes, dispersion, decay, and adsorption. Includes laboratory and computer demonstrations. Less

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Subject:
Environmental Science
Material Type:
Activities and Labs
Full Course
Homework and Assignments
Lecture Notes
Syllabi
Provider:
M.I.T.
Provider Set:
MIT OpenCourseWare
Author:
Harvey, Charles
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HYSPLIT Applications for Emergency Decision Support
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This module helps forecasters provide decision support services during hazardous materials emergencies. ... More

This module helps forecasters provide decision support services during hazardous materials emergencies. Topics covered include: Types of weather data inputs required for short-range dispersion models typically used by emergency managers Types of inputs required to run the web version of the HYSPLIT model, which is now available to NWS forecasters The types and scales of events that are appropriate and inappropriate for modeling by HYSPLIT Key uncertainties that can cause misleading dispersion model forecasts The processes and limitations of CAMEO/ALOHA and HYSPLIT How to read and interpret HYSPLIT output How to handle special situations, such as when the spilled chemical is known or when the meteorological models do not adequately represent conditions at the spill site The role of emergency managers and how to effectively communicate with them In addition, two WES case studies have been sent to NWS offices. These cases provide practice running the HYSPLIT model in two scenarios that emphasize potential hazards and weather influences. Less

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Subject:
Atmospheric Science
Physics
Material Type:
Instructional Material
Provider:
UCAR Staff
Provider Set:
COMET/MetEd Program Collection
Author:
COMET
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Numerical Methods of Applied Mathematics II, Spring 2005
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Advanced introduction to applications and theory of numerical methods for solution of ... More

Advanced introduction to applications and theory of numerical methods for solution of differential equations, especially of physically-arising partial differential equations, with emphasis on the fundamental ideas underlying various methods. Topics include finite differences, spectral methods, finite elements, well-posedness and stability, particle methods and lattice gases, boundary and nonlinear instabilities. Less

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Subject:
Mathematics
Material Type:
Full Course
Homework and Assignments
Lecture Notes
Syllabi
Other
Provider:
M.I.T.
Provider Set:
MIT OpenCourseWare
Author:
Koev, Plamen
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Patterns of point objects (Chapter 3)
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This chapter continues the examination and clarification of concepts relating to point ... More

This chapter continues the examination and clarification of concepts relating to point objects, for which as argued in Chapter 1, appropriate, complex/ second order, concepts relate to words like ‘distribution’, ‘dispersion’, ‘density’, ‘pattern’ and ‘scale’ and, at higher level still, third order concepts relating to point process models, stationarity and isotropy/anisotropy. Less

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Subject:
Mathematics
Physics
Material Type:
Activities and Labs
Instructional Material
Lesson Plans
Unit of Study
Provider:
TeachSpatial
Provider Set:
TeachSpatial resources for spatial teaching and learning
Author:
David J. Unwin
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Quantitative Reasoning and Statistical Method for Planning I, Spring 2006
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This course develops logical, empirically based arguments using statistical techniques and analytic ... More

This course develops logical, empirically based arguments using statistical techniques and analytic methods. It covers elementary statistics, probability, and other types of quantitative reasoning useful for description, estimation, comparison, and explanation. Emphasis is placed on the use and limitations of analytical techniques in planning practice. This course is required for and restricted to first-year M.C.P. students. Less

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Subject:
Statistics and Probability
Material Type:
Assessments
Full Course
Homework and Assignments
Lecture Notes
Syllabi
Provider:
M.I.T.
Provider Set:
MIT OpenCourseWare
Author:
Zegras, P. Christopher
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Supporting Military Emergency Response During Hazardous Releases
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This module is primarily intended for AFWA and other military forecasters. It ... More

This module is primarily intended for AFWA and other military forecasters. It explains the basics of how hazardous materials are dispersed in the atmosphere and how emergency responders and others model the transport and impact of the materials. The goal is to acquaint forecasters with the inputs needed for modeling and to encourage them to be proactive in providing their site-specific knowledge to improve dispersion predictions. Less

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Subject:
Atmospheric Science
Physics
Material Type:
Instructional Material
Provider:
UCAR Staff
Provider Set:
COMET/MetEd Program Collection
Author:
COMET
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Transport Processes in the Environment, Fall 2004
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Introduction to momentum and scalar transport in environmental flows, with emphasis given ... More

Introduction to momentum and scalar transport in environmental flows, with emphasis given to river and lake systems. Derivation and solutions to the differential form of mass conservation equations. Topics include: molecular and turbulent diffusion, boundary layers, dissolution, phase partitioning, bed-water exchange, air-water exchange, settling and coagulation, buoyancy-driven flows, and stratification in lakes. Less

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Subject:
Environmental Science
Material Type:
Activities and Labs
Full Course
Homework and Assignments
Lecture Notes
Syllabi
Other
Provider:
M.I.T.
Provider Set:
MIT OpenCourseWare
Author:
Nepf, Heidi
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Transport Processes in the Environment, Fall 2008
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" This class serves as an introduction to mass transport in environmental ... More

" This class serves as an introduction to mass transport in environmental flows, with emphasis given to river and lake systems. The class will cover the derivation and solutions to the differential form of mass conservation equations. Class topics to be covered will include: molecular and turbulent diffusion, boundary layers, dissolution, bed-water exchange, air-water exchange and particle transport." Less

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Subject:
Environmental Science
Hydrology
Material Type:
Activities and Labs
Full Course
Lecture Notes
Video Lectures
Other
Provider:
M.I.T.
Provider Set:
MIT OpenCourseWare
Author:
Nepf, Heidi
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Volcanic Ash: Introduction
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Provides a concise introduction to volcanic ash through the examples of the ... More

Provides a concise introduction to volcanic ash through the examples of the Mt. Pinatubo and Eyjafjallajökull eruptions. This is the introduction to a four-part series on Volcanic Ash. Less

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Subject:
Ecology
Forestry and Agriculture
Atmospheric Science
Physics
Material Type:
Instructional Material
Provider:
UCAR Staff
Provider Set:
COMET/MetEd Program Collection
Author:
COMET
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Volcanic Ash: Volcanism
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This module is the second in the four-part Volcanic Ash series. It ... More

This module is the second in the four-part Volcanic Ash series. It provides information about the geological, and geophysical processes related to volcanic activity and volcanic ash in the atmosphere and on the ground. It discusses four types of volcanic eruptions and describes six major volcanic hazards: Tephra Pyroclastic flow Lahar Lava flow Volcanic gas Tsunami Less

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Subject:
Ecology
Forestry and Agriculture
Atmospheric Science
Physics
Material Type:
Instructional Material
Provider:
UCAR Staff
Provider Set:
COMET/MetEd Program Collection
Author:
COMET
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Wave Life Cycle II: Propagation & Dispersion
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The goal of the module is to enable a marine forecaster to ... More

The goal of the module is to enable a marine forecaster to manually predict how the wave height and period will change as the waves leave their generation area, become swell, and then propagate and disperse into the forecaster’s offshore coastal waters. While numerical wave prediction models can provide swell height and period forecasts, they are dependent on accurate wind forecasts by atmospheric prediction models. Therefore, manual skills in determining swell height and period are needed in order to cross-check or correct model predictions in cases of poor or unresolved model forecasts of winds. The module starts by discussing how swell propagate along great circle tracks and how these tracks will look different on various map projections. With this in mind the concept of developing a known “swell window” for a given location is introduced. Next, the module uses conceptual animations to demonstrate the effects of dispersion on the swell group as it propagates over a long distance. Also discussed are nonlinear processes, wave steepness, travel time, event duration, and opposing winds. Then the module explains how swell height changes due to angular spreading of wave energy and provides a simplified method to calculate this change. Finally, users are able to test their new understanding of these concepts through a short exercise where they are asked to determine swell height and period at multiple locations. User interactions are included throughout the module and within the short exercise. This is the third in a series of training modules on marine wind and waves. It follows the “Wave Types and Characteristics” and “Wave Generation” modules. Less

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Subject:
Atmospheric Science
Physics
Material Type:
Instructional Material
Provider:
UCAR Staff
Provider Set:
COMET/MetEd Program Collection
Author:
COMET
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Where Do We Choose to Live and Why?
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In this geography investigation, learners use a nighttime satellite image to observe ... More

In this geography investigation, learners use a nighttime satellite image to observe areas of light across the United States and to identify patterns and spatial distributions of human settlements. They explain the reasons for these patterns by answering questions and making inferences about what they observe. This detailed lesson guide includes background information, resource links, and handouts. Less

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Subject:
Engineering
Education
Life Science
Ecology
Forestry and Agriculture
Mathematics
Atmospheric Science
Physical Geography
Physics
Material Type:
Activities and Labs
Instructional Material
Lesson Plans
Provider:
Science and Math Informal Learning Educators (SMILE)
Provider Set:
SMILE Pathway: Science and Math Activities in One Search
Author:
Mission Geography
NASA
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.)310.1( tcejbus ngised enotspac eht dna )150.1 ,140.1 ,130.1( stcejbus ngised aera ... More

.)310.1( tcejbus ngised enotspac eht dna )150.1 ,140.1 ,130.1( stcejbus ngised aera ytlaiceps tneuqesbus eht ni desu si hcihw decudortni si esac ngised egral A .naps efil detcepxe dna ,srotcaf laicos dna cimonoce ,tnemnorivne larutan ,tnemnorivne tliub gnitsixe eht fo noitaredisnoc sa llew sa sehcaorppa lacinhcet snrecnoc ylticilpxe ngised tcejorP .)sdaor dna segdirb ,sgnidliub ,.g.e( seitilicaf tliub no sisahpme na htiw ,sesac ngised lareves sedulcnI .gnireenigne livic ni secitcarp dna seussi ngised sa llew sa ,gnivlos-melborp evitaerc dna ngised gnireenigne fo seuqinhcet dna ,sloot ,yroeht eht ot stneduts secudortnI Less

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