ESS 7 An Introduction to Space Weather Fall, 2008 Raymond J. Walker.
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ESS 7 ESS 7 An Introduction to Space An Introduction to Space Weather Weather Fall, 2008 Fall, 2008 Raymond J. Walker Raymond J. Walker
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Transcript of ESS 7 An Introduction to Space Weather Fall, 2008 Raymond J. Walker.
ESS 7ESS 7
An Introduction to Space An Introduction to Space WeatherWeather
Fall, 2008Fall, 2008
Raymond J. WalkerRaymond J. Walker
What is Science?• Not a collection of facts!• A way of thinking critically and
quantitatively to solve problems!• An important skill no matter what your path
in life.• Mathematics is the language of science.• We will learn about science by examining
how the environment of space effects the Earth and therefore us.
What are the Goals of ESS 7?
• Introduce you the exciting field of space weather.
• Develop and hone skills in– Critical thinking– Problem solving– Technical communication
• Learn and develop scientific thinking skills.
Class Information• Professor Ray Walker
– 6843 Slichter Hall– [email protected]
• Office Hours: MWF at 10:30AM-11:30AM or by appointment.
• TA: Megan Cartwright– [email protected]
Class Information Continued• Text book
– “An Introduction to Space Weather” by Mark Moldwin
• Lecture notes – http://www.igpp.ucla.edu/lucid/lessons/ess7_2008_fall/Lessons.htm
• Grading:– Homework 25% - Due one week after assigned.
• Due one week after assigned• Late homework worth 50%
– Two midterms 20% each– Final 35%
What is Space Weather?“Space weather” refers to conditions on the Sun and in the
solar wind, magnetosphere, ionosphere, and thermosphere that can influence the performance and reliability of space-borne and ground-based technological systems and can endanger human life or health. Adverse conditions in the space environment can cause disruptions of satellite operations, communications, navigation, and electric power distribution grids, leading to a variety of socioeconomic losses.”
National Space Weather Program Strategic Plan, 1995
Office of the Federal Coordinator for Meteorological Services and Supporting Research.
Why Bother?• Space physics started as curiosity driven
science - to explore the ionosphere, magnetosphere, Sun and heliosphere.
• In the 1970’s, 1980’s and 1990’s we started to use the regions above the neutral atmosphere – communications, weather forecasting, navigation etc.
• As early as the 1960’s humans began to go into space.
The Example of Galaxy IV?• Space is a very hostile environment.
• In the 1990’s the commercial satellite industry boomed – by 2000 making and launching the satellites was a $100X109 per year business.
• Galaxy IV was an operating and profitable communications satellite.– 90% of pager traffic– Several broadcast networks – NPR (radio),
CBS (television)
May 19, 1998• Galaxy IV failed.
• It had been in an intense radiation environment for weeks due to a series of magnetic storms.
• It was killed by radiation effects related to the storms.
A More Down to Earth ExampleArea affected by black out.
SyllabusDate Lecture Assignment
9/26 Introduction to Space Weather Read Chapter 1
9/29 History Read Chapter 2 – HW 1
10/1 The Sun
10/3 The Sun
10/6 The Sun Read Chapter 3 – HW 2
10/8 The Heliosphere
10/10 The Heliosphere
10/13 The Heliosphere Read Chapter 4 - HW 3
10/15 Review for First Exam
10/17 First Exam
Syllabus
Date Lecture Assignment
10/20 Bow Shock and Magnetosheath
10/22 Magnetosphere
10/24 Magnetosphere
10/27 Magnetosphere
10/29 Substorms Read Chapter 5 - HW 5
10/31 Storms
11/3 Atmosphere
11/5 Ionosphere
11/7 Review Second Exam
11/10 Second Exam
Syllabus
Date Lecture Assignment
11/12 Aurora Read Chapter 6 - HW 6
11/14 Technology and Space Weather
11/17 Technology and Space Weather
11/24 Technology and Space WeatherRead Chapter 7 - HW 7
11/26 Planets
11/28 Holiday
12/1 Humans in Space
12/3 Humans in Space
12/5 Review for Final
