Physics of Glacier Flow :: physics glaciers ice

How Glaciers Flow - Glaciers flow under the force of gravity as snow accumulates on the upper parts of the glacier and wants moves down slope. - The snow compresses to become ice and flows through the glacier into the ablation zone where it is lost. - If the accumulation equals the ablation than the glacier is said to be in equilibrium and its position will not change. This does not mean that the ice will not flow! Accumulation Zone The area where inputs occur into a glacier system. This usually occurs near the top of the glacier or ice sheet and such inputs to the system include snowfall, wind blown snow, rain and avalanches. Ablation Zone The region in which more mass is lost than gained in a glacier system. This usually occurs at the end and sides of the glacier. Forms of losses include wind ablation, avalanching, iceberg calving and melting. Glaciers flow through three different mechanisms: (1) by internal deformation; (2) by basal sliding; and (3) by subglacial deformation. Glacier Flow Mechanisms Internal Deformation Ice deforms under its own weight due to gravity and the movements of tiny ice crystals. Thicker and warmer ice deforms more rapidly although the overall movement is very slow, only around tens of meters a year. There are two main processes of internal deformation; creep, which forms fold structures, and faulting, which occurs when ice cannot creep fast enough and forms superficial tensional fractures. Basal Sliding Enhanced Basal Creep - Stress concentrations around the upstream side of an obstacle result in locally high strain rates which causes ice to accelerate around the obstacle. The basal ice continually modifies its shape to allow a continued sliding. This process works best when the obstacle is over 1m in size. Regelation - The process allows glacier ice to slide over rough beds by melting and refreezing on the downglacier side. It occurs as the most resistance to glacier movement is provided by the upstream side of obstacles. This results in locally high pressures and the consequent encouragement of ice melting immediately upglacier of the obstacle. The resulting meltwater migrates to the lower pressure area downstream where it refreezes. This process is most effective when objects are less than 1m in size. Subglacial deformation Sediment has a lower yield strength than rock and ice and so it is deformable. As the sediment deforms, it moves the ice sheet with it. Ice Velocites * The surface velocities of a glacier can be measured quite easily using GPS.

Course Syllabus Essay

This capstone course for the criminal justice administration undergraduate degree program provides students with an integration of acquired knowledge of theory to practical applications. Particular attention is given to integrating core content of criminal justice administration with specialized content from students’ selected concentration area. Students will assess the impact of their educational experiences on their professional competence and values, critical thinking and problem solving, communication, information utilization, and collaboration skills. Policies Faculty and students/learners will be held responsible for understanding and adhering to all policies contained within the following two documents: University policies: You must be logged into the student website to view this document. Instructor policies: This document is posted in the Course Materials forum. University policies are subject to change. Be sure to read the policies at the beginning of each class. Policies may be slightly different depending on the modality in which you attend class. If you have recently changed modalities, read the policies governing your current class modality. Course Materials All electronic materials are available on the student website. Week One: Overview of Administration of Justice Details Due Points Objectives 1.1 Critically evaluate current qualitative and quantitative research pertaining to trends in the criminal justice arena. 1.2 Evaluate past, present, and future trends in the interface between components of the criminal justice system and criminal justice connections with surrounding society. 1.3 Analyze organizational behavior concepts associated with common managerial practices involved in day-to-day operations within criminal justice settings. 1.4 Identify professional standards and values that apply across various components of the criminal justice system. 1.5 Analyze the relationship among ethics theory, critical thinking, and professional behavior within the administration of criminal justice. Readings Read this week’s Read Me First. Review this week’s Electronic Reserve Readings. Examine this week’s Additional Readings. Discussion & Participation Participate in weekly class discussions (eight substantive posts on at least three class days). Each Week  4 Learning Team Instructions Meet and Greet Learning Team members who work together throughout the course. Create the Learning Team Charter. Begin preparing for Learning Team Assignment: Critical Thinking, Ethics, and Professional Standards As Assigned Individual Assignment Quiz #1 Complete the Week 1 Quiz #1 (found in Course Materials) Submit your responses to the Assignments Section Sunday Week 1 Day 6 Individual Assignment Quiz #2 Complete the Week 1 Quiz #2 (found in Course Materials) Submit your responses to the Assignments Section Sunday Week 1 Day 6 Learning Team Instructions Submit the Learning Team Charter. Monday Week 1 Day 7 Individual Criminal Justice Trends Evaluation Select one component of the criminal justice system (police, courts, or corrections). Write a 1,050 to 1,400 word paper: Evaluate and assess the past, present, and future trends of the criminal justice component you selected (limit your evaluation to post-World War II trends). Justify the future budgetary and managerial needs of the component you selected, and how these needs will affect other components of the criminal justice system. Include current qualitative and quantitative research data in your analysis. Format your paper to APA guidelines. Submit your paper to the Assignments Section. Note: Do not use a textbook as a reference – seek professional and scholarly reference sources, including our weekly readings. Monday Week 1 Day 7 Week Two: Policing Perspective: Theory and Application Details Due Points Objectives 2.1 Examine perspectives of the policing function from the local, state, and federal organizational levels. 2.2 Evaluate past, present, and future trends pertaining to the development and operation of the field of policing. 2.3 Identify leadership characteristics and responsibilities within policing organizations. 2.4 Apply prevailing theories of crime control to the policing function. 2.5 Analyze the organizational management, administration, and operational aspects of policing. Readings Read this week’s Read Me First. Review this week’s Electronic Reserve Readings. Examine this week’s Additional Readings. Discussion & Participation Participate in weekly class discussions (eight substantive posts on at least three class days). Each Week Learning Team Instructions Begin preparing for Learning Team assignment: Discussion Question Q&A: Policing Perspective: Theory and Application. Individual Instruction Prepare and submit Week 1 Summary Wed Week 2 Day 2 Individual Organizational Management and Operations Analysis Police agencies exist at the federal, state, and local government levels. These agencies have legal, jurisdictional, and functional commonalities and differences. Write a 1,050 to 1,400 word paper in which you identify, compare, and contrast the policing functions and the legal and jurisdictional differences of the local, state, and federal levels of police. Analyze similarities and differences of the organizational, management, administration, and operational functions of each level, and why these exist. Format your paper to APA guidelines. Submit your paper to the Assignments Section. NOTE: Do not use a textbook as a reference — seek out professional and scholarly reference sources, including our weekly readings. Monday Week 2 Day 7 Learning Team Critical Thinking, Ethics, and Professional Standards Analysis Write a 1,400 to 2,100 word paper: Analyze the relationship between ethics and professional behavior in the administration of criminal justice. Describe the role of critical thinking with regard to the relationship of criminal justice ethics and professional standards across criminal justice components. Identify five current or recent (within past year) criminal justice professional standards issues in the news and explain the related ethical conduct issue. Format your paper to APA guidelines. Designate a team member to submit your team assignment. Submit your paper to the Assignments Section. NOTE: Do not use a textbook as a reference — seek out professional and scholarly reference sources, including our weekly readings. Monday Week 2 Day 7 Week Three: Courts: Role, Process, and Impact Details Due Points Objectives 3.1 Evaluate the diverse roles of the courtroom personnel and participants in shaping both substantive law and procedural law relating to the criminal justice system. 3.2 Analyze the relationship of the courts of the criminal justice system when establishing legal standards applicable to the professional practice of criminal justice. 3.3 Evaluate the constitutional foundations and safeguards and how they apply to the criminal law and adult and juvenile proceedings. 3.4 Assess the relationship of crime, criminal law, and liability. Readings Read this week’s Read Me First. Review this week’s Electronic Reserve Readings. Examine this week’s Additional Readings. Discussion & Participation Participate in weekly class discussions (eight substantive posts on at least three class days). Each Week Learning Team Instructions Begin preparing for Learning Team assignment: Constitutional Safeguards Analysis Individual Instruction Prepare and submit Week 2 Summary Wed Week 3 Day 2 Individual Court Evaluation Judges, prosecutors, and defense counsel perform diverse roles for effective operation of courts. Each holds broad power, authority, and responsibility in duty and function. Their relationships are both independent and interdependent. Legal and ethical standards guide the relationships, duties, and responsibilities of each profession. The actions of judges, prosecutors, and defense counsel affect both substantive and procedural law. Write a 1,050 to 1,400 word paper in which you assess and evaluate the above issues and concepts. Format your paper to APA guidelines. Submit your paper to the Assignments Section. Note: Do not use a textbook as a reference – seek out professional and scholarly reference sources, including our weekly readings. Monday Week 3 Day 7 Learning Team Policing Perspective: Theory and Application Write a 1,400 to 2,100 word paper responding to policing and crime control theory and application. Evaluate the past, present, and future trends affecting the development and operations of policing. Limit your past-trend discussion to post-World War II trends. Classify and interpret some prevailing theories of crime as they apply to policing. Consider the following in your narrative: The effect of crime theories on police  practices The correlation of criminal justice and crime data on crime theories The effects of crime control models and corresponding police practices on due process The future model of policing Format your team assignment to APA guidelines. Designate a team member to post your team’s final assignment on behalf of the team. Post the final assignment in the Assignments Section. NOTE: Do not use a textbook as a reference — seek out professional and scholarly reference sources, including our weekly readings. Monday Week 3 Day 7 Week Four: Corrections: Contemporary Views of Offender Management and Treatment Details Due Points Objectives 4.1 Evaluate past, present, and future trends pertaining to the development and operation of institutional and community based corrections. 4.2 Assess the security, technology, management, and control functions within correctional environments. 4.3 Explain the various educational and treatment programs used in rehabilitation efforts for institutional and community corrections. 4.4 Examine correctional organization and administration functions that reflect operations and fiscal demands. 4.5 Analyze the relationship among jails, prisons, probation, parole, juvenile and community corrections processes. Readings Read this week’s Read Me First. Review this week’s Electronic Reserve Readings. Examine this week’s Additional Readings. Discussion & Participation Participate in weekly class discussions (eight substantive posts on at least three class days). Each Week Learning Team Instructions Begin preparing for Learning Team assignment: Institutional Corrections in America Research Paper. Individual Instruction Prepare and submit Week 3 Summary Wed Week 4 Day 2 Individual Community Corrections Analysis Write a 1,050 to 1,400 word paper. Evaluate the development, operation, and purpose of community correction systems (probation and parole), and the legal, jurisdictional, and functional differences between these. Analyze the relationship between federal, state, and local community corrections systems and federal, state, and local institutional corrections (hint: consider state versus federal crimes and felony versus misdemeanor crimes and the respective corrections systems that respond to these). Include a discussion of the effects of truth-in-sentencing law on parole and institutional corrections populations. Format your paper to APA guidelines. Submit your paper to the Assignments Section. NOTE: Do not use a textbook as a reference – seek out professional and scholarly reference sources, including our weekly readings. Monday Week 4 Day 7 Learning Team Constitutional Safeguards Analysis Write a 1,400 to 2,100 word paper: Identify and evaluate the constitutional safeguards provided by the Fourth, Fifth, and Sixth Amendments to the United States Constitution as they apply to both adult and juvenile court proceedings. Examine the effect these safeguards have on the day-to-day operation of adult and juvenile courts. Discuss any safeguards to eliminate and why your team would eliminate these. Support your recommendation with valid research. Format your team assignment to APA guidelines. Designate a team member to post your team’s final assignment on behalf of the team. Post the final assignment in the Assignments Section. NOTE: Do not use a textbook as a reference – seek out professional and scholarly reference sources, including our weekly readings. Monday Week 4 Day 7 Week Five: Globalization of Criminal Justice: International Perspectives Details Due Points Objectives 5.1 Assess the impact of globalization on the U.S. criminal justice process. 5.2 Compare and contrast international criminal justice systems. 5.3 Discuss the impact of cyber crime on worldwide justice systems. 5.4 Differentiate the policing systems on a worldwide scale. 5.5 Identify major crimes and criminal issues that have a global impact on justice systems and processes. Readings Read this week’s Read Me First. Review this week’s Electronic Reserve Readings. Examine this week’s Additional Readings. Discussion & Participation Participate in weekly class discussions (eight substantive posts on at least three class days). Each Week Individual Instruction Prepare and submit Week 4 Summary Wed Week 5 Day 2 Individual Instruction Prepare and submit Week 5 and Final Summary Monday Week 5 Day 7 Learning Team Institutional Corrections in America Research Paper Write a 2,500- to 3,000-word research paper regarding Incarceration in America. Evaluate the current state of American institutional corrections. Include analysis of correctional organization and administration functions; assess security, technology, and inmate-management and inmate-control functions, and; analyze the fiscal demands of these functions and programs. Forecast the future of American institutional corrections from past and current corrections trends (limit past-trend examination to post-1950s era corrections) and recommend a criminal justice and corrections philosophy for all states to adopt, supported by your research, evaluation, and analysis. Note: This is a research paper. Develop a thesis about your future forecast or recommendation and present it in your introduction. The Center for Writing Excellence offers assistance for this final assignment (and all previous assignments). Support all assertions with valid and credible research. In your research and thesis design, you may wish to consider any of the following concepts: past (post-1950s) and present incarceration trends and policies; incarceration rates, populations, and overcrowding; crime rates and trends; privatization; incarceration and sentencing initiatives and practices; use of incarceration alternatives; management, organizational, and inmate-supervision functions and practices; fiscal demands; inmate health-care; educational, vocational, and recreational opportunities; rehabilitative programs; and other corrections concepts. Format your team assignment to APA guidelines. Include an abstract with this writing (Abstract is graded separately and worth 2 of the 12 points) Designate a team member to post your team’s final assignment on behalf of the team. Post the final assignment in the Assignments Section. NOTE: Do not use a textbook as a reference – seek out professional and scholarly reference sources, including our weekly readings.

State Sponsored Terrorism Is Not Conducted By Democratic...

There are generally four repeating common themes used to define terrorism: (1) the use or threat to use violence; (2) a political objective; (3) with intent to spread fear through a public act; (4) with the intent to commit violence against civilians (Various, n.d.). Additionally, these themes are promoted mostly by non-democratic societies or dictatorships that advance their goals through state sponsored terrorism. State sponsored terrorism is not conducted by democratic regimes for if they truly suppressed their people through acts of terrorism then they would no longer be democratic (Various, n.d.). Terroristic acts involving the slaughter of innocent men, woman and children from all sides are often justified or legitimatized by the accustomed morals and values of each group. Although there is extensive literature on the subject of terrorism, no common or universal definition for the term exists. The word terrorism has had changing meaning over the centuries which is illustrated in this week s reading assignment. For example, earlier incarnations used the term terrorism as it was wielded as a government instrument – by the French government during the transient point of the French Revolution, as well as, the Nazi and Fascist Italy regimes (Hoffman, 2006). Much of the modern concept of terrorism has been historically shaped and defined by military powers. Legitimate warfare was created out of custom and treaty law. It did not matter to the great powers that theShow MoreRelatedTerrorism, State Terror And Terrorism Essay2005 Words   |  9 PagesOn November 9th 2016, Donald Trump was declared the president-elect of the United States. This announcement was quickly followed by mass protests in the streets. Citizens were outraged that a candidate, whose entire platform had relied on racist and misogynistic rhetoric, could win the presidency despite losing the popular vot e. 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