Starting Post WW-2, When The United States Became The Dominant Foreign Power In The Middle East, Create A Timeline Of US Activities With Middle Eastern Countries.

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ThoughtCo.

 

The U.S: and the Middle East Since 1945 to 2008

A Guide to Mideast Policy From Harry Truman to George W. Bush

 

by Pierre Tristam Updated August 18, 2017

 

The first time a Western power got soaked in the politics of oil in the Middle East was toward the end of 1914, when British soldiers landed at Basra, in southern Iraq, to protect oil supplies from neighboring Persia. At the time the United States had little interest in Middle East oil or in imperial designs on the region. Its overseas ambitions were focused south toward Latin America and the Caribbean (remember Maine?) and westward toward east Asia and the Pacific.

When Britain offered to share the spoils of the defunct Ottoman Empire after World War I in the Middle East, President Woodrow Wilson declined. It was only a temporary reprieve from creeping involvement that began during the Truman administration. It’s not been a happy history. But it’s necessary to understand that past, even if only in its general outlines, to better make sense of the present, especially regarding current Arab attitudes toward the West.

 

Truman Administration: 1945–1952.

 

American troops were stationed in Iran during World War II to help transfer military supplies to the Soviet Union and protect Iranian oil. British and Soviet troops were also on Iranian soil. After the war, Stalin withdrew his troops only when Harry Truman protested their continued presence through the United Nations and possibly threatened to use force to boot them

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( 4 of7 ) ( 7 / 23 / 2018, 4:54 PM )

 

 

out.

 

American duplicity in the Middle East was born: while opposing Soviet influence in Iran, Truman solidified America’s relationship with Mohammed Reza Shah Pahlavi, in power since 1941, and brought Turkey into the North Atlantic Treaty Organization (NATO), making it clear to the Soviet Union that the Middle East would be a Cold War hot zone.

Truman accepted the 1947 United Nations partition plan for Palestine, granting 57% of the land to Israel and 43% to Palestine, and personally lobbied for its success. The plan lost support from U.N. member nations, especially as hostilities between Jews and Palestinians multiplied in 1948 and Arabs lost more land or fled. Truman recognized the State of Israel 11 minutes after its creation, on May 14, 1948.

 

Eisenhower Administration: 1953–1960

 

Three major events marked Dwight Eisenhower’s Middle East policy. In 1953, Eisenhower ordered the CIA to depose Mohammed Mossadegh, the popular, elected leader of the Iranian parliament and an ardent nationalist who opposed British and American influence in Iran. The coup severely tarnished America’s reputation among Iranians, who lost trust in American claims of protecting democracy.

In 1956, when Israel, Britain, and France attacked Egypt when Egypt nationalized the Suez Canal, a furious Eisenhower not only refused to join the hostilities, he ended the war.

Two years later, as nationalist forces roiled the Middle East and threatened to topple Lebanon’s Christian-led government, Eisenhower ordered the first landing of U.S. troops in Beirut to protect the regime. The deployment, lasting just three months, ended a brief civil war in Lebanon.

 

Kennedy Administration: 1961–1963.

 

John Kennedy was supposedly uninvolved in the Middle East. But as Warren Bass argued in “Support Any Friend: Kennedy’s Middle East and the Making of the U.S.-Israeli Alliance,” John Kennedy tried to develop a special relationship with Israel while diffusing the effects of his predecessors’ Cold War policies regarding Arab regimes.

Kennedy increased economic aid toward the region and worked to reduce its polarization between Soviet and American

 

spheres. While the friendship with Israel was solidified during his tenure, Kennedy’s abbreviated administration, while briefly inspiring the Arab public, largely failed to mollify Arab leaders.

 

Johnson Administration: 1963–1968

 

Lyndon Johnson was absorbed by his Great Society programs at home and the Vietnam War abroad. The Middle East burst back onto the American foreign policy radar with the Six-Day War of 1967, when Israel, after rising tension and threats from all sides, preempted what it characterized as an impending attack from Egypt, Syria, and Jordan.

Israel occupied the Gaza Strip, the Egyptian Sinai Peninsula, the West Bank, and Syria’s Golan Heights. Israel threatened to go further. The Soviet Union threatened an armed attack if it did. Johnson put the U.S. Navy’s Mediterranean Sixth Fleet on alert but also compelled Israel to agree to a cease-fire on June 10, 1967.

 

Nixon-Ford Administrations: 1969–1976

 

Humiliated by the Six-Day War, Egypt, Syria, and Jordan tried to regain lost territory when they attacked Israel during the Jewish holy day of Yorn Kippur in 1973. Egypt regained some ground, but its Third Army was then surrounded by an Israeli army led by Ariel Sharon (who would later become prime minister).

The Soviets proposed a ceasefire, failing which they threatened to act “unilaterally.” For the second time in six years, the United States faced its second major and potentially nuclear confrontation with the Soviet Union over the Middle East. After what journalist Elizabeth Drew described as “Strangelove Day,” when the Nixon administration put American forces on the highest alert, the administration persuaded Israel to accept a cease-fire.

Americans felt the effects of that war through the 1973 Arab oil embargo, rocketing oil prices upward and contributing to a recession a year later.

In 1974 and 1975, Secretary of State Henry Kissinger negotiated so-called disengagement agreements, first between Israel and Syria, then between Israel and Egypt, formally ending the hostilities begun in 1973 and returning some land Israel had seized from the two countries. Those were not peace agreements, however, and they left the Palestinian situation untouched. Meanwhile, a military strongman called Saddam Hussein was rising through the ranks in Iraq.

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Carter Administration: 1977–1981.

 

Jimmy Carter’s presidency was marked by American Mid-East policy’s greatest victory and greatest loss since World War II.

II. On the victorious side, Carter’s mediation led to the 1978 Camp David Accord and the 1979 peace treaty between Egypt and Israel, which included a huge increase in U.S. aid to Israel and Egypt. The treaty led Israel to return the Sinai Peninsula to Egypt. The accord took place, remarkably, months after Israel invaded Lebanon for the first time, ostensibly to repel chronic attacks from the Palestine Liberation Organization in south Lebanon.

On the losing side, the Iranian Islamic Revolution culminated in 1978 with demonstrations against the regime of Shah Mohammad Reza Pahlavi, culminating with the establishment of an Islamic Republic with Supreme Leader Ayatollah Ruhollah Khomeini on April 1, 1979.

On Nov. 4, 1979, Iranian students backed by the new regime took 63 Americans at the U.S. Embassy in Tehran hostage. They’d hold on to 52 of them for 444 days, releasing them the day Ronald Reagan was inaugurated as president.

The hostage crisis, which included one failed military rescue attempt that cost the lives of eight American servicemen, undid the Carter presidency and set back American policy in the region for years. The rise of Shiite power in the Middle East has begun.

To top things off for Carter, the Soviets invaded Afghanistan in December 1979, eliciting little response from the president other than an American boycott of the 1980 Summer Olympics in Moscow.

 

Reagan Administration: 1981–1989

 

Whatever progress the Carter administration achieved on the Israeli-Palestinian front stalled over the next decade. As the Lebanese civil war raged, Israel invaded Lebanon for the second time in June 1982, advancing as far as Beirut, the Lebanese capital city, before Reagan, who had condoned the invasion, intervened to demand a cease-fire.

American, Italian, and French troops landed in Beirut that summer to mediate the exit of 6,000 PLO militants. The troops then withdrew, only to precipitately return following the assassination of Lebanese President-elect Bashir Gemeyel and the retaliatory massacre by Israeli-backed Christian militias of up to 3,000 Palestinians in the refugee camps of Sabra and Shatila, south of Beirut.

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In April 1983, a truck bomb demolished the U.S. Embassy in Beirut, killing 63 people. On October 23, 1983, simultaneous bombings killed 241 American soldiers and 57 French paratroopers in their Beirut barracks. The American forces withdrew shortly after. The Reagan administration then faced several crises as the Iranian-backed Lebanese Shiite organization that became known as Hezbollah took several Americans hostage in Lebanon.

The 1986 Iran-Contra Affair revealed that the Reagan administration had secretly negotiated arms-for-hostages deals with Iran, discrediting Reagan’s claim that he would not negotiate with terrorists. It would be December 1991 before the last hostage, former Associated Press reporter Terry Anderson, would be released.

Throughout the 1980s, the Reagan administration supported Israel’s expansion of Jewish settlements in occupied territories. The administration also supported Saddam Hussein in the 1980–1988 Iran–Iraq War. The administration provided logistical and intelligence support, believing wrongly that Saddam could destabilize the Iranian regime and defeat the Islamic Revolution.

 

George H.W. Bush Administration: 1989-1993

 

After benefiting from a decade of support from the United States and receiving conflicting signals immediately before the invasion of Kuwait, Saddam Hussein invaded the small country to his southeast on August 2, 1990. President

Bush launched Operation Desert Shield, immediately deploying U.S. troops in Saudi Arabia to defend against a possible invasion by Iraq.

Desert Shield became Operation Desert Storm when Bush shifted strategy — from defending Saudi Arabia to repelling Iraq from Kuwait, ostensibly because Saddam might, Bush claimed, be developing nuclear weapons. A coalition of 30 nations joined American forces in a military operation that numbered more than half a million troops. An additional 18 countries supplied economic and humanitarian aid.

After a 38-day air campaign and a 100-hour ground war, Kuwait was liberated. Bush stopped the assault short of an invasion of Iraq, fearing what Dick Cheney, his defense secretary, would call a “quagmire.” Bush established instead “no-fly zones” in the south and north of the country, but those didn’t keep Hussein from massacring Shiites following an attempted revolt in the south — which Bush had encouraged — and Kurds in the north.

In Israel and the Palestinian territories, Bush was largely ineffective and uninvolved as the first Palestinian intifada roiled on

 

 

 

for four years.

 

. In the last year of his presidency, Bush launched a military operation in Somalia in conjunction with a humanitarian operation by the United Nations. Operation Restore Hope, involving 25,000 U.S. troops, was designed to help stem the spread of famine caused by the Somali civil war.

The operation had limited success. A 1993 attempt to catch Mohamed Farah Aidid, leader of a brutal Somali militia, ended in disaster, with 18 American soldiers and up to 1,500 Somali militias and civilians killed. Aidid wasn’t caught.

Among the architects of the attacks on Americans in Somalia was a Saudi exile then living in Sudan and largely unknown in the United States: Osama bin Laden.

 

Clinton Administration: 1993-2001

 

Besides mediating the 1994 peace treaty between Israel and Jordan, Bill Clinton’s involvement in the Middle East was bracketed by the short-lived success of the Oslo Accord in August 1993 and the collapse of the Camp David summit in December 2000.

The accord ended the first intifada, established Palestinians’ right to self-determination in Gaza and the West Bank, and established the Palestinian Authority. The accord also called on Israel to withdraw from the occupied territories.

But Oslo left unsettled such fundamental questions as the right of Palestinian refugees to return to Israel, the fate of East Jerusalem — which is claimed by Palestinians — and continuing expansion of Israeli settlements in the territories.

Those issues, still unresolved by 2000, led Clinton to convene a summit with Palestinian leader Yasser Arafat and Israeli leader Ehud Barak at Camp David in December 2000, the waning days of his presidency. The summit failed, and the second intifada exploded.

Throughout the Clinton administration, terrorist attacks orchestrated by the increasingly public bin Laden punctured the 1990s’ post-Cold War air of quietude, from the 1993 World Trade Center bombing to the bombing of the USS Cole, a Navy destroyer, in Yemen in 2000.

 

George W. Bush Administration: 2001–2008

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After deriding operations involving the U.S. military in what he called “nation-building,” President Bush turned, after the terrorist attacks of 9/11, into the most ambitious nation-builder since the days of Secretary of State George Marshall and the Marshall Plan that helped rebuild Europe after World War II. Bush’s efforts, focused on the Middle East, were not as successful.

Bush had the world’s backing when he led an attack on Afghanistan in October 2001 to topple the Taliban regime there, which had given sanctuary to al-Qaeda. Bush’s expansion of the “war on terror” to Iraq in March 2003, however, had less backing. Bush saw the toppling of Saddam Hussein as the first step in a domino-like birth of democracy in the Middle East.

Bush set in motion his controversial doctrine of preemptive strikes, unilateralism, democratic regime change, and attacking countries that harbored terrorists—or, as Bush wrote in his 2010 memoir, “Decision Points”: “Make no distinction between terrorists and the nations that harbor them and hold both to account… take the fight to the enemy overseas before they can attack us again here at home… confront threats before they fully materialize… and advance liberty and hope as an alternative to the enemy’s ideology of repression and fear.”

But while Bush talked about democracy in Iraq and Afghanistan, he continued to support repressive, undemocratic regimes in Egypt, Saudi Arabia, Jordan, and in several countries in North Africa. The credibility of his democracy campaign was short-lived. By 2006 , with Iraq plunging into civil war, Hamas winning elections in the Gaza Strip, and Hezbollah winning immense popularity following its summer war with Israel, Bush’s democracy campaign was dead. The US military surged troops into Iraq in 2007, but by then the majority of the American people and many government officials were widely skeptical that going to war in Iraq was the right thing to do in the first place.

In an interview with The New York Times magazine in 2008 — toward the end of his presidency — Bush touched upon what he hoped his Middle East legacy would be, saying, “I think history will say George Bush clearly saw the threats thatkeep the Middle East in turmoil and was. willing to do something about it, wa. s willing to lead and had this great faith in the capacity of democracies and great faith in the capacity of people to decide the fate of their countries and that the

democracy movement gained impetus and gained movement in the Middle East.”

 
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Industrial Health

PowerPoint Presentation

Create a PowerPoint presentation of 15 slides (not counting title and reference slides) that provides an overview of the three major environmental, health, and safety (EHS) disciplines. Include each of the following elements:

summary of the responsibilities for the discipline, evaluation of types of hazards addressed by the discipline, description of how industrial hygiene practices relate to safety and environmental programs, description of how industrial hygiene practices relate to environmental programs, evaluation of types of control methods commonly used by the discipline, interactions with the other two disciplines, and major organizations associated with the discipline.

Construct your presentation using a serif type font such as Times New Roman. A serif type font is easier to read than a non-serif type font. For ease of reading, do not use a font smaller than 28 points

 
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Safety And Accident

OSHA published a comprehensive ergonomics standard that was subsequently rescinded by Congress using the Congressional Review Act (CRA). Since that time, OSHA has been prohibited from passing another ergonomics standard. OSHA’s current approach is to publish ergonomic guidelines, which are not legally enforceable, for industries with high incidence rates of MSDs and CTDs.

What is your opinion of OSHA’s current approach to ergonomic issues in workplaces? Can you propose an approach that you believe would better address ergonomic issues?

Please respond to one posts from your peers. Please include the name of the person or question to which you are replying in the subject line. For example, “Tom’s response to Susan’s comment.”
ALSO PLEASE REPLY TO ANOTHER STUDENTS COMMENT BELOW

William:

When functioning in a highly charged political environment as well as being subject to congressional approval for rule and law changes. The reality is OSHA can only make recommendations and let lawmakers decide on mandatory versus voluntary or recommended practices. Dudley (2001) argues that OSHA’s research was inadequate and did not provide both the numbers of musculo-skeletal disorders (MSD’s) and how the program would reduce those injuries as well as what casts versus saving would occur for businesses. OSHA indicated that businesses were underreporting these types of injuries and if reporting was accurate the number of incidents would be much higher. This likely supports the assumption that these standards will not become law unless additional research could support the true value as well as the true problem.

OSHA’s current enforcement mechanism outside of voluntary compliance is the use of the general duty clause. While this may be effective in some ways it does not give specific requirements as to the violations that should be accepted as law. One way to address the ergonomic issue could be system engineering as well as coordination with other agencies involved in the improvement of ergonomics. The American National Standards Institute (ANSI) is an organization that supports voluntary standards and conformity and has over 270,000 businesses listed as partners and is an international organization (ANSI, 2020). The International Organization for Standardization (ISO) brings together experts to share knowledge and develop voluntary, consensus-based, market relevant International Standards that support innovation and provide solutions to global challenges (ISO, 2020).

I point out these organizations since they could follow a model of either an Alliance Program or an OSHA Strategic Partnership Program with OSHA. Understanding that many companies conduct business internationally or buy equipment from foreign partners, starting to take on more of a global awareness could create an efficiency for OSHA. It also has the benefit of bringing in experts who work in the field of ergonomics and have credibility and insight to develop standards. From earlier studies it was noted that OSHA can be slow to react to changing environments and outside influences. Expanding this into a Voluntary Participation Program (VPP) begins to place even more onus on businesses for compliance. This not only frees up OSHA personnel involved in inspections but opens up another potential model of accreditation. Many accreditation agencies utilize other agencies as checkpoints for evaluation of their current model. Accredited organizations have been through a process of self-evaluation and have been inspected and reviewed by other agencies who were already accredited. Accreditation can be used to evaluate best business practices, seek favorable insurance and financing options, and also keep an organization competitive among its peers. This wholly funded by participating organizations or grants and keeps OSHA directly out of the development process but still engaged as an inspection and enforcement agency as needed.

References

ANSI. (n.d.). About ANSI. Retrieved from https://www.ansi.org/about_ansi/overview/overview?menuid=1

ISO, (n.d.). About us. (n.d.). Retrieved from https://www.iso.org/about-us.html

Dudley, S. E. (2001). The Benefits and Costs of OSHA’s Proposed Ergonomics Program Standard. Journal of Labor Research22(1), 95. Retrieved from http://eds.b.ebscohost.com.libraryresources.columbiasouthern.edu/eds/detail/detail?vid=11&sid=e473a82f-bde6-41c9-b2fb-e9e33fdd64f4%40pdc-v-sessmgr03&bdata=JnNpdGU9ZWRzLWxpdmUmc2NvcGU9c2l0ZQ%3d%3d#AN=4031454&db=edb

 
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Safety And Accident

OSHA published a comprehensive ergonomics standard that was subsequently rescinded by Congress using the Congressional Review Act (CRA). Since that time, OSHA has been prohibited from passing another ergonomics standard. OSHA’s current approach is to publish ergonomic guidelines, which are not legally enforceable, for industries with high incidence rates of MSDs and CTDs.

What is your opinion of OSHA’s current approach to ergonomic issues in workplaces? Can you propose an approach that you believe would better address ergonomic issues?

Please respond to one posts from your peers. Please include the name of the person or question to which you are replying in the subject line. For example, “Tom’s response to Susan’s comment.”
ALSO PLEASE REPLY TO ANOTHER STUDENTS COMMENT BELOW

William:

When functioning in a highly charged political environment as well as being subject to congressional approval for rule and law changes. The reality is OSHA can only make recommendations and let lawmakers decide on mandatory versus voluntary or recommended practices. Dudley (2001) argues that OSHA’s research was inadequate and did not provide both the numbers of musculo-skeletal disorders (MSD’s) and how the program would reduce those injuries as well as what casts versus saving would occur for businesses. OSHA indicated that businesses were underreporting these types of injuries and if reporting was accurate the number of incidents would be much higher. This likely supports the assumption that these standards will not become law unless additional research could support the true value as well as the true problem.

OSHA’s current enforcement mechanism outside of voluntary compliance is the use of the general duty clause. While this may be effective in some ways it does not give specific requirements as to the violations that should be accepted as law. One way to address the ergonomic issue could be system engineering as well as coordination with other agencies involved in the improvement of ergonomics. The American National Standards Institute (ANSI) is an organization that supports voluntary standards and conformity and has over 270,000 businesses listed as partners and is an international organization (ANSI, 2020). The International Organization for Standardization (ISO) brings together experts to share knowledge and develop voluntary, consensus-based, market relevant International Standards that support innovation and provide solutions to global challenges (ISO, 2020).

I point out these organizations since they could follow a model of either an Alliance Program or an OSHA Strategic Partnership Program with OSHA. Understanding that many companies conduct business internationally or buy equipment from foreign partners, starting to take on more of a global awareness could create an efficiency for OSHA. It also has the benefit of bringing in experts who work in the field of ergonomics and have credibility and insight to develop standards. From earlier studies it was noted that OSHA can be slow to react to changing environments and outside influences. Expanding this into a Voluntary Participation Program (VPP) begins to place even more onus on businesses for compliance. This not only frees up OSHA personnel involved in inspections but opens up another potential model of accreditation. Many accreditation agencies utilize other agencies as checkpoints for evaluation of their current model. Accredited organizations have been through a process of self-evaluation and have been inspected and reviewed by other agencies who were already accredited. Accreditation can be used to evaluate best business practices, seek favorable insurance and financing options, and also keep an organization competitive among its peers. This wholly funded by participating organizations or grants and keeps OSHA directly out of the development process but still engaged as an inspection and enforcement agency as needed.

References

ANSI. (n.d.). About ANSI. Retrieved from https://www.ansi.org/about_ansi/overview/overview?menuid=1

ISO, (n.d.). About us. (n.d.). Retrieved from https://www.iso.org/about-us.html

Dudley, S. E. (2001). The Benefits and Costs of OSHA’s Proposed Ergonomics Program Standard. Journal of Labor Research22(1), 95. Retrieved from http://eds.b.ebscohost.com.libraryresources.columbiasouthern.edu/eds/detail/detail?vid=11&sid=e473a82f-bde6-41c9-b2fb-e9e33fdd64f4%40pdc-v-sessmgr03&bdata=JnNpdGU9ZWRzLWxpdmUmc2NvcGU9c2l0ZQ%3d%3d#AN=4031454&db=edb

 
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Lab 4

Lab 4: August Polar Sea Ice Area Loss

Background

In this lab, you will examine actual data on the reduction in polar sea ice area in August between 1979 and 2015.

You will use the August Polar Sea Ice Area Loss Spreadsheet to:

  • Calculate a linear regression of polar sea ice area in August.
  • Use this regression to forecast when polar sea ice will completely disappear in August.

Note: Access the August Polar Sea Ice Area Loss Instructions to see the steps for performing the linear regression calculation. The August Polar Sea Ice Area Loss Instructions also provide a series of related questions for you to answer.

Begin Work on Your Lab

To begin work on your lab, access:

After performing your calculations on the spreadsheet, you will also need to answer the questions on your August Polar Sea Ice Area Loss Instructions. You will need to submit your spreadsheet andthe August Polar Sea Ice Area Loss Instructions to the assignment area.   SU200358137 Shinelove5*

 
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Analyzing Emergency & Disaster Concepts

MUST use attached reference and be in APA 7th edition format.

Overview: Read the assignment material for the week. This week, the reading assignment is: Forward and Chapters 1 – 9 of “What is a Disaster” by Perry & Quarantelli (eds.).

Assignment: Provide an approximate 1500-word document analyzing important concepts in the readings. Ensure you apply the discussion tenets from the contributors to your work including the work of Scanlon, Alexander, Cutter, Jigyasu, Britton, and Dombrowsky. Assume that you are writing for an uninformed reader that knows nothing about the topic and has not read what you read. Provide an introduction that gives the background of the resource that you are reviewing, so the reader will understand what they’re reading and why. Include the following topics in the discussion:

– Discuss why is it difficult to define the concept of disaster? Is it a moving target?

– Analyze and discuss the role of culture and the design of civilization on the way disasters are perceived.

– Define ‘reality’ and ‘construct’. Analyze and discuss if there is such a thing as reality? Why or why not?

– Assess and discuss the role of ‘respondent’ in academic discussions. What role does a respondent play, and what value does he/she add?

DO NOT list out the topics or questions and answer them. Provide APA formatted headings. Ensure that you meet or exceed the 1500-word target, and that your paper meets APA presentation requirements. Save the Microsoft Word document as [yourlastnameWkX] (e.g. SmithWk4) and upload the paper to the assignment.

Rubric: Papers will be graded using the APUS graduate rubric, with attention paid to comprehension, depth of knowledge, and clear expression of ideas and arguments. Additionally, adherence to APA conventions will be required.

 
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Turkey Point: More Questions Than Answers?

Turkey Point: More Questions Than Answers?

The Turkey Point nuclear power station was built in 1972 by Florida Power & Light Corporation on the shore of Biscayne Bay about 25 miles south of Downtown Miami. It is the largest electrical power generating station in Florida and the sixth largest in the United States. FPL has applied to the State of Florida’s Public Service Commission and to the Federal Nuclear Regulatory Commission to build two additional reactors on this site.

After reading your textbook’s section on how electricity is generated by nuclear fission, read the following articles for backgrounding prior to participating in this Forum.

A. As someone who lives and votes in South Florida (if you don’t live in South Florida, imagine that you live and work in downtown Miami – 25 miles away from Turkey Point as the Turkey Vulture glides), you will create a list of six (6) questions in rank order of importance to you about FPL’s nuclear power operations.

For each question, briefly (at least two complete sentences) explain why it is important that you get an answer to this question – now!
Use the following format to earn up to 12 points (2 points/question + reason)

Question 1:
Reason 1:

 
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Lab

Key concepts:

Energy balance equation

Radiation: Long and short-wave

Albedo and reflectivity of surface (short-wave radiation)

Equilibrium temperature

 

Background information:

The Gaia theory: Daisyworld

Daisyworld is an artificial world with a very simple biota that is specifically designed to display the characteristics in which we are interested, namely, the close coupling of the biota and the global environment (McGuffie and Henderson-Sellers, 1997). This simple (zero-dimensional) computer model is designed to illustrate Lovelock’s Gaia Hypothesis, which views the Earth as a living, self-regulating entity. While evolving, life forms on earth modulate their environment (temperature, etc.).

This model describes an imaginary planet called Daisyworld (see figure below). Daisyworld is a very simple planet that has only two species of life on its surface: white and black daisies. The planet is assumed to be well-watered, with all rain falling at night so that the days are cloudless. The atmospheric water vapor and CO2 are assumed to remain constant, so that the greenhouse gas of the planet does not change. The key aspect of Daisyworld is that the two types of daisies have different colors and, thus, different albedos. In this way, the daisies can alter the temperature of the surface where they are growing.

Daisyworld

Name:

Date:

Link to Daisyworld simulation: http://netlogoweb.org/launch#http://netlogoweb.org/assets/modelslib/Sample%20Models/Biology/Daisyworld.nlogo

Description of the model : http://ccl.northwestern.edu/netlogo/models/Daisyworld

1. Set the solar luminosity to 1.000 (present conditions). Set the population of daisies to 20% white and 20% black. The albedo of the surface should be 0.50, white daisies should be 0.75, and black daisies should be 0.25.

A. What happens to the population of the daisies?

B. What happens to the temperature of the Earth?

2. Draw a feedback loop that can occur within Daisyworld. Label it as positive or negative feedback.

3. Why do the populations of both daisies remain stable when both are present?

4. Gradually decrease solar luminosity to 0.800.

A. What type of daisy survives? Why?

B. What happens to the temperature of the Earth? Why?

5. Repopulate the world with 20% each of white and black daisies. Set the solar luminosity to 1.000 and run the simulation until temperatures stabilize. Then slowly increase solar luminosity to 1.400.

A. What type of daisy survives at high luminosity? Why?

B. What happens to the temperature of the Earth? Why?

6.

A. Populate Daisyworld with all white daisies and set the solar luminosity to 0.900. What happens?

B. populate Daisyworld with mostly white daisies and 1 black daisy, and set solar luminosity to 0.900. What happens this time?

C. Why are there different results? Relate to the Gaia hypothesis.

7. Crank up the heat by changing the solar luminosity to 2.000. Remove all of the daisies.

A. Paint on a few white daisies while the simulation is running. What happens to the daisies, and why?

B. Stop the simulation and add a big patch of daisies (at least a third of the world). How is the result different from the previous simulation? Why?

C. Relate the result in B to the expansion of boreal (pine) forests at high latitudes.

8. Stop the simulation, set up Daisyworld with 20% each white and black daisies, and run the “ramp-up-ramp-down” luminosity simulation a few times through. Speed up the simulation so this doesn’t take an hour.

A. There are three different ways this simulation can end. Name two of them. What biological event(s) determine the destiny of the planet?

B. What can you do, as an external force, to save any surviving white daisies at the end of the simulation? How do your changes indirectly affect the environment?

9. Imagine the Earth was covered in daisies, just like Daisyworld. Yes, these daisies can grow on glaciers, bare rock, and even oceans. They are space-daisies from another planet, after all.

A. Which daisies would dominate at high latitudes (near poles)? Low latitudes (near the equator)? Why?

B. What would happen to the temperature difference between the equator and the poles? Why?

C. Given your answer to B, would you expect average wind speeds on Earth to increase, decrease, or stay constant? What caused the change?

 
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Ecological Footprint

For this project, you will use the  class data posted in the “Shared Data” Discussion containing the Week 1  Ecological Footprint Data Tables.

This data project will address Course Outcomes 1 and 3:

  • interpret quantitative information to determine effects of human  activity on the environment and to evaluate environmentally sustainable  decisions
  • effectively communicate and use scientific evidence regarding human  impact on the environment with emphasize on sustainability and global  citizenship

Description

This data project will be composed of two parts.

In Part I of your report, you will compile class data from the Week 1  Eco Moment on our Ecological Footprints (found in the “Shared Data”  Discussion under Ecological Footprint Data) and summarize/analyze it  with Excel (or similar spreadsheet program).  Discuss what trend(s) you  see in the class data that relate to course concepts.  Think about the  best way to present your findings–tabular or graphical form?  There is  no “right answer” here, as long as you pick a format that highlights  your main findings and support your table(s) and/or graph(s) with clear  text that interpret the results.  Do any of the findings surprise you?   Why or why not?

In Part II, you will research and discuss possible solutions to the  environmental problems reflected in the class data. Here, you will want  to support your argument with reliable, scientific resources (e.g.,  peer-reviewed scientific papers, white papers, and government websites).  Be sure to end with a strong concluding paragraph that summarizes the  main data trend(s), along with the merits and relevance of your chosen  solution(s).

Format

The page limit for your written report for both Part I and Part II is  2 pages, plus 1 page for the data table/graph(s) you use to present  your findings in Part I. The page limit does not include an  optional title page, the reference list, and the appendix with the raw  class data. The report should be double-spaced with one-inch margins all  around and use a 12-pt font.

Here is the order in which to present the various project components:

  1. Part I = describe the class data we collected, include the  methodology, relevant web tool (if applicable), the mean and sample size  for each result, table/graph(s) that depict the main findings and/or  trends; interpret the table/graph(s) for the reader
  2. Part II = summarize research on possible solutions; be sure to  incorporate reliable in-text citations and focus on relevant, attainable  solutions
  3. Reference List
  4. Appendix of Raw Data = screenshot or copy in the Excel table showing all the class data (no analysis or mean)
 
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ASSIGNMENT 2 EVR

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Name _________________________________ Date ________________ Section _________________________________ Score ________________ Partner _________________________________ I.I’s ________________

Lab 13 – The Mars Lab Tutorial

Materials Needed: The Mars Lab utilizes four Shaded Relief Maps (MC-7, MC-15, MC-19, and MC-25) prepared from the Mariner 9 Mission to Mars by the USGS. You will begin with MC-25. The Mars Worksheet will utilize additional USGS maps of Mars. You will obtain these maps from https://astrogeology.usgs.gov/search?pmi-target=mars. Use the filters as shown below and do not use the revised version, but the original version:

 

INTRODUCTION – The Mars-like Planet

The large number of craters on Mars reminds us of the Moon and Mercury. But the sand dunes, volcanoes, and dry river valleys remind us of processes found here on earth. Indeed Mars is in many ways a halfway planet; it has a surface much less active than the direst desert on earth, yet it seems like a tropical wet-house when compared to the bare and dry surfaces of Mercury and the moon. But in addition, Mars is also a world of its own. The great volcanoes, chasms, and dune fields of Mars are unlike anything found on earth or the other planets. In the final analysis, Mars is more like Mars than anyplace else.

In this lab, you will sample some of the diversity of Mars by examining some maps of various regions on Mars. These maps include several regions selected from the Atlas of Mars by Batson, Bridges & Inge. Of course, a complete survey is out of the question in such a short time, but as you work through the worksheets provided, we hope you will appreciate some of the surprising variety of landforms found on this bone dry desert world. Some of the key concepts that you will explore are given below. As you

 

 

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read the introductory pages, please answer the questions and fill in the blanks by using the provided maps.

I. IMPACT CRATERS AND STRUCTURES

During the past 4.5 billion years, countless tiny, small, medium, large and enormous meteoroids have struck the surface of Mars. As on the other terrestrial planets, there are small impact craters, medium-sized impact craters with central peaks, multi-ring structures and large basins – all due to the influx of impacting meteoroids and asteroids. However, these craters have been subject to much more wind and water erosion than craters on the moon or Mercury. In the Thaumasia Quadrangle (MC-25) are examples of several varieties of impact craters. Most of the moderately large craters are named whereas the smaller craters are designated by letters. 1. Please record the names and diameters of the following medium-sized craters found

at the designated positions: Name Latitude Longitude Size (km) _______________ -51 S 113 W _______________ _______________ -47 84 W _______________ _______________ -52 70W _______________

Use the scale at the bottom of the map to determine the diameters. Notice that the interior of these craters are relatively smooth. Winds have smoothed the interiors of many Martian craters. 2. What is the name and diameter of the large crater at longitude 82°W and latitude

-53°S? ______________________ (82°W -53°S) ___________________ km What is unusual about this crater? ____________________________________________ Smaller Craters and Central Peaks The first letter (capitalized) for the smaller craters is assigned in terms of increasing longitude (to the west and right) and the second letter is assigned in terms of increasing latitude (to the north and up). Several of the smaller craters have small central peaks – mountains that were thrown up in the center of the impact crater when the craters were formed. Give the latitude, longitude, and diameter of these four craters:

 

 

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Name Latitude Longitude Size (km) Xp __________ S __________ W ___________ Wpd __________ S __________ W ___________ Vx __________ S __________ W ___________ Aka __________ S __________ W ___________ You may have noticed that these small craters are not really small. While all such craters do not have central peaks, many of them do. The peaks can be further studied to give us more information about the energy of the impacting asteroids and the strength of the Martian rock layers. Between Latitudes 40 to 48 South and Longitudes 100 to 110 West, is a large smooth roughly circular basin. This may be the mark of a very large and ancient impact structure that has since been filled with lava and/or dust and eroded by water and/or winds. Whether this is true in this particular case would require additional study. What is the name of this large planum? _____________________________________ Planum Relative Age One of the craters labeled “Pg”, (latitude 56.5°S, longitude 93°W) has a small interior crater, Pgc. It is obvious that Pgc is younger than Pg. the same principle can be used for overlapping carters. In these cases a younger crater has partially obliterated an older crater’s rim. Use this principle to determine which crater is older; Wq or Xq (~ 43°S, 112°W). ____________

II. VOLCANIC ACTIVITY Volcanoes Several volcanoes on Mars are much larger than any found on earth. Their summit calderas may be many kilometers high and their flanks sometimes extend for hundreds of kilometers. A few scattered meteorite craters on their flanks suggest that many of them have formed during the past few hundred million years. Here again, we see evidence that Mars is much less active than the earth, but much more active than the moon and Mercury. Three very large, very ancient and very different types of volcanoes are found in the Elysium Quadrangle of Mars (MC-15). Elysium Mons (Mons = Mountain) is a shield volcano roughly circular with relatively smooth flanks that exude from a central vent or central caldera. Notice that the base of the volcano reaches from 209-217°W. A slightly smaller mountain, which has a larger caldera, is Albor Tholus, centered at approximately 19°N, 210°W. A tholus is an isolated dome shaped hill or mountain. What are the diameters of these two huge mountains and their central calderas? Base Diameter Caldera Diameter Elysium Mons ________________ km ________________ km Albor Tholus ________________ km ________________ km

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Caldera After a period of volcanic activity the magmatic pressure which caused the volcano begins to subside. Sometimes the pressure drops so much that the center of the volcano collapses. This central crater is called a caldera. The caldera is different from an impact crater is several ways, some of which you will discover by observation during this lab. Two important differences are the lack of central peaks (sometimes found in impact craters, but never found in calderas) and the lack of an uplifted rim around a caldera. The rim of an impact crater is made of overturned rock. Look carefully at the differences between the flanks and the calderas of the two large volcanoes and the rims and interiors of the impact craters Eddie (12°N, 218°W), Lockyer (28°N, 199°W), and Wg (8°N, 219°W). The impact craters generally have raised rims and sometimes have central peaks. The volcanoes never have central peaks. At 3°N, 196°W is a nearly buried feature labeled “Jc”. Is Jc a relic impact crater or volcano?____ Patera A complex or irregular volcanic crater is called a patera. A large, ancient volcanic structure is found in the Elysium quadrangle (15°N, 181°W).

III. RUNNING WATER Most of the surface of the Margaritifer Sinus quadrangle (MC-19) is very ancient. Ancient craters that are believed to be perhaps three billion years old clutter the surface of the region. In addition, however, there is also evidence of ancient beds of running water in the Margaritifer Sinus quadrangle. For example, what is the name of the valley that flows to the northwest from the edge of the map up into the Holden crater (26°S, 34°W)? _________________________________________ Notice that the vallis is quite different from the nearby Erythrea Fossae. The fossae are believed to be rifts (pulled apart by rock movements – tectonics instead of erosional features). What is the valley south of Jones crater (20°S, 20°W)? __________________ Note that the valleys look like tree branches (so called dendritic forms) where smaller tributaries have run into larger streams. Additional forms are also in evidence. What is the name of the chasm in the northwest corner of the map? __________________ Chasm What are the names of the two chaotic tumbled regions in the northernmost regions of the map? ___________________ Chaos and ______________________ Chaos. Chaotic regions may be due to underground water and/or moving ice.

IV. EROSION, WATER, WIND, AND ICE Polar Regions Both poles of Mars are covered with frost, snow, and ice due to both carbon dioxide and water. The poles wax and wane with the seasons being larger during their respective winters and smaller during their respective summers. They also exhibit evidence that Mars may have had its own ice ages and warm ages over the past thousands and millions

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of years. Some of the sand dune fields near the poles are larger than any others known in the solar system. A Very Martian Landscape The Cebrenia Quadrangle (MC-7) of Mars offers a very Martian landscape. Can you recognize these features? Name Diameter 1 A moderately large impact crater in the

middle of the map? [48°N, 220°W]

__________________ _________ km

2 A very large volcano at the bottom of the map?

__________________ _________ km

3 An ancient valley slightly to the SW [40°N, 225°W; 35°N, 220°W]

__________________ Vallis

4 An ancient, fairly straight fault near the above Vallis? __________________ Fossae

What is unusual about the craters Tyndall (Dg), El (46°N, 191°W) and the unnamed crater centered near 32°N, 188°W? ___________________________________________________________________________________________________________________

Pedestal Craters In the northwest portion of the map are some curious craters that seem perched upon domical hills. These strange features were apparently formed from impacts that melted enormous amounts of ice frozen in the ground. Name (Label) Lat Long Name (Label) Lat Long __________________ 56°N 220°W __________________ 63°N 228°W Aeolian or Wind Erosion Sand dunes, bright and dark windblown streaks, hundreds of kilometers in length, and wind filled valleys and craters offer plentiful evidence that Martian wind affects the surface of Mars. Do you see any features on MC-17 or MC-15 that are due specifically to the action of the wind? _____________________________________________________________________________________________________________________________________________________________________________________________________

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When you have completed your tutorial, check the key to verify your answers. Your answers should be accurate to approximately 15% or better. If most of your answers are correct and if you understand any errors that you might have made, you are ready to proceed to the graded worksheet.

 

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BIBLIOGRAPHY [Introductory, Semi-technical & Technical]

Baker, Victor R. (1982). The Channels of Mars. University of Texas Press. Batson, R.M., Bridges, P.M. & Inge, J.L. (1979). Atlas of Mars (NASA). Beatty, J.K. (Sept 1976). “Viking Lands on a Very Red Planet”, Sky and Telescope v. 52. Beatty, J. Kelly (Dec 1976). “Vikings Rest During Mars’ Conjunction”, Sky and

Telescope vol. 52, #6, pp. 404-409. Beatty, J.K., O’Leary, B., & Chaikin, A. Eds. (1990). The New Solar System (3ed). Sky

Publishing Corp. Carr, Michael (1981). Surface of Mars. Yale University Press. Carr, Michael (1996). Water on Mars. Oxford University Press: New York. 239 pages. Kiefer, H.H., Jakosky, B.M., Snyder, C.W., & Matthews, M.S., Editors (1992). Mars.

University Press of Arizona Press: Tuscon. Masursky, Harold (Aug 1972). “The New Mariner 9 Map of Mars”, Sky and Telescope

vol. 44, #2, pp. 77-82. Weaver, Richard F. (Feb 1973). “Journey to Mars”, National Geographic Magazine vol.

143, #2, pp. 231-263.

 

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Name _________________________________ Date ________________ Section _________________________________ Score ________________ Partner _________________________________ I.I’s ________________

Lab 13 – The Mars Lab Worksheet

Materials Needed: You will need the Topographic Maps of Tharsis Quadrangle (MC-9), the Oxia Palus Quadrangle (MC-11) and the Coprates Quadrangle (MC-18) as well as the Controlled Photomosaic and Topographic Maps of the Tharsis Northwest Quadrangle (MC-9NW). Note that you will be using three separate maps of the Olympus Mons region. Grading Notes: Several times you will be asked an open-ended question requiring more than a simple name, number, or a yes or no. Do not leave these questions blank. These questions are graded generously – unless you fail to answer them. Questions that require written answers will count twice as much as other questions.

I. MORE ON CRATERS

The regions we shall examine in the Worksheet portion of the Mars Lab are not as heavily cratered as some of the regions examined in the Tutorial. This is because the regions we shall examine in the Tutorial have been greatly altered by wind, rain, ice, and volcanism. Even within these quadrangles, however, there has been a great deal of variety in erosional processes. These variations in crater density tell us a great deal about the age of the features being examined. Regions that have a low crater density are younger than the regions that have been extensively cratered. Furthermore, regions that have many small craters are more likely to have a few large craters.

Variations in Crater Density (MC-9, MC-11, MC-18) Several regions have been selected from these quadrangles that represent some of the range in crater density found on Mars. Examine the following regions and determine the approximate number of craters in each 5° x 5° region: (Count unlabeled and labeled craters – be attentive, a careful examination reveals a surprisingly large number) Between 25° & 30°N and 115° & 120°W (MC-9) ____________ less than 10 _________________ 11-30 ___________ more than 30 Between 5° & 10°S and 70° & 75°W (MC-18) ____________ less than 10 _________________ 11-30 ___________ more than 30 Between 5° & 10°N and 40° & 45°W (MC-11) ____________ less than 10 _________________ 11-30 ___________ more than 30

 

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Give the name and size of the two largest impact craters on MC-11: Name __________________________________ Diameter _________________ km Name __________________________________ Diameter _________________ km Give the name and size of the two largest impact craters on MC-18: Name __________________________________ Diameter _________________ km Name __________________________________ Diameter _________________ km Give the name and size of the largest impact crater* on MC-9: Name __________________________________ Diameter _________________ km *It is not Uranius Patera – Uranius Patera is volcanic. Which Quadrangle is the most heavily cratered? How so? Does the Quadrangle with the most craters have the largest craters? Explain your answer. Many astronomers and geophysicists believe that perhaps three or four billion years ago, there were probably ancient rivers on Mars. After Mars began to dry up and cool off, there were apparently occasional floods due to widespread melting – perhaps during volcanic eruptions and/or due to impacts from relatively large asteroids and comets. The large and now dormant volcanoes on Mars, particularly those in the Tharsis region, have apparently erupted during the past billion years and thus the volcanic features are much younger than the features due to water erosion. Wind erosion, however, continues into the present. Are the features on your charts consistent with these ideas? Can you give specific examples? Some ideas to keep in mind: (1) whenever there are few craters, the surface is relatively young, (2) large impacts are rare, (3) the terrain around the ancient riverbeds is much more heavily cratered than the terrain around the large volcanoes, and (4) while not evident here, windstorms on Mars are so widespread that they can sometimes be observed from earth.

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II. VOLCANOES For this portion of the lab, you will need to examine the topographic map of the Tharsis Quadrangle (MC-9). Later, you will examine one of these giant volcanoes (Olympus Mons) in more detail by using some more detailed maps of the Northwest quadrant (MC- 9NW) Volcanoes: Sizes and Elevations – Volcanoes of the Tharsis Bulge What are the diameters of: Ascraeus Mons ___________ km Bibles Patera ___________ km Ceraunius Tholus ___________ km Olympus Mons ___________ km Pavonis Mons ___________ km Uranius Mons ___________ km Uranius Patera ___________ km

[The entire mountains, not just the calderas.] The largest volcanoes on the earth are approximates the size of Biblis Patera and Uranius Tholus – the smallest of these seven structures. These volcanoes are also very high. Check the red topographic contours to determine their elevations. What is the highest elevation found on Olympus Mons? ____________ km What is the highest elevation found on Pavonis Mons? ____________ km What is the highest elevation on Ascraeus Mons? ____________ km What is the name of the volcano with the largest Caldera? (It is not Olympus Mons) How large is this caldera? Name ___________________________________ diameter ________________ km A caldera is a larger crater caused by sinking of the central region of a volcano after the pressure of the outflowing magma begins to decrease. The calderas at the summits of Martian volcanoes are very similar to those of some terrestrial volcanoes except that the Martian volcanoes and calderas are sometimes much larger. However, the Martian volcanoes frequently exhibit additional cratering found on their flanks that are due to meteoroidal impact. These impact craters often give us a way of crudely estimating the volcanoes’ ages. Most of the Martian volcanoes seem to be between one hundred million years and one billion years old. Age and Erosion of Volcanoes Give the labels of the three largest impact craters on the flanks of Olympus Mons and the largest impact craters on the flanks of Ulysses and Ascraeus Patera. (longitude and latitude are provided) Olympus Mons ______________ at 133°W 17.5°N Olympus Mons ______________ at 132°W 18°N Olympus Mons ______________ at 132°W 22°N Ulysses Patera ______________ at 121.5°W 4°N

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Ascraeus Patera ______________ at 101.5°W 12.5°N What evidence is there that crater MC-9 Sc is younger than Ulysses Patera? What evidence is there that the impact crater on the northern edge of Ceraunius Tholus struck before Ceraunius Tholus became extinct? Close-up of Olympus Mons – you will need both the Controlled Photomosaic and the Topographic Map of the Northwest (NW) section of the Tharsis Quadrangle for this section (MC-9NW). The sunken central caldera of Olympus Mons is found at approximately 133°W, 18°N in the SW portion of the Controlled Photomosaic. Notice how the flows seem to have flown out in all directions from these central vents. What is the longest diameter you measure for the caldera? ___________________ km Several small craters on the flank of the Olympus Mons are not visible in the larger quadrangle map. Give the size and coordinates of three of them. A magnifying glass may help. Size Coordinates Size Coordinates Size Coordinates

___ km _____________ ___ km _____________ ___ km _____________

To the north of Olympus Mons is an enormous lava field that actually extends beyond the SW portion of the quadrangle. Note again that there are few impact features, making this a very young surface for Mars. Still, if you look carefully you will generally find some more small impact craters on the flanks of most volcanoes. This tells us that even though the volcanic regions are much younger than much of the Martian surface, nevertheless, they have ages in the millions of years. It is not every day that a 5-20 kilometer impact crater is formed. What is the altitude at the top edge of the steep edge of the eastern flank (around 129.2°W, 17.5°N) of Olympus Mons? ___________ km or ____________ m

[1 km = 1000 meters – your answers should be greater than 20km or 20,000m] What is the altitude at the bottom edge of the steep edge of the eastern flank (around 129.2°W, 17.5°N) of Olympus Mons? ___________ km or ____________ m So, how far from the top to bottom for these cliffs on the east flank of Olympus Mons? ___________ km or ____________ m

[While the cliffs are not nearly as high as the summit of Olympus Mons, they are higher than many high mountains on earth.]

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III. CHASMS AND VALLEYS Valles Marineris The Coprates Quadrangle (MC-18) has one of the longest known valleys in the solar system. The valley has been formed from a large rift near the equator of Mars which has been further eroded by wind and water. The valley actually extends beyond the picture here. How wide is it at its widest point (Melas Chasma)? (Ignore the extra tributary) ____ km Using the topographic contours, how much depth is there between the highest rims near Ius Chasma (to the west) and the lowest points in the valley near Eos Chasma (to the east)? Highest rim elevation _________________ km Lowest valley elevation _________________ km difference _________________ km It you look very carefully, a few craters can be found in the valley itself. There are many more impact craters to the north and south of the valley than in the valley itself. This tells us that the floor of the valley and quite possibly the valley itself is much younger than the surrounding plains. On the photographs, there is not much evidence of running water. However, there is evidence of several enormous landslides. For example, how high are the cliffs at Melas Chasm (in the central regions of the valley)? top = ________ km bottom = _______ km total drop = _________ km

IV. RUNNING WATER In the Oxia Palus Quadrangle (MC-11) we find a different form of valley. The crater at 3°N and 16°W seems to be the starting point for a flood that tore toward the Chryse Planitia. What is the label of the crater? ______________________________________________ What is the name of the valley? _____________________________________________ How does the topography support this hypothesis? (Hint – note the elevation of the Chryse Planitia, negative numbers are below mean elevation)

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Are the valleys in the Southwest of the map such as Shalbatana Vallis and Simud Vallis consistent with the idea that liquid material (presumably water) once flowed into Chryse Planita? Explain. What are the names of the odd landforms found at the head of Tiud Vallis and Simud Vallis? These odd landforms may be due partially to the collapse of regions that experienced catastrophic melting of enormous quantities of frozen ice. Whatever their source, these features remind us that there is a great deal about Mars that we do not understand. After completing the worksheets, submit them to your instructor.

  • Name _________________________________ Date ________________
  • Lab 13 – The Mars Lab Tutorial
  • Name _________________________________ Date ________________
  • Lab 13 – The Mars Lab Worksheet
 
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