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NATS 101 Intro to Weather and Climate Section 4: 9:00 am MWF SS 100. Lecturer: Prof. Steven L. Mullen TA’s: Stephen Bieda Koichi Sakaguchi Guest Lecturers?. Who Am I?. Professor and Department Head Department of Atmospheric Science Joint Faculty Appointment

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NATS 101 Intro to Weather and Climate Section 4: 9:00 am MWF SS 100

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Nats 101 intro to weather and climate section 4 9 00 am mwf ss 100

NATS 101 Intro to Weather and Climate Section 4: 9:00 am MWF SS 100

Lecturer: Prof. Steven L. Mullen

TA’s: Stephen Bieda

Koichi Sakaguchi

Guest Lecturers?

Who am i

Who Am I?

  • Professor and Department Head Department of Atmospheric Science

  • Joint Faculty Appointment

    Dept. of Hydrology and Water Resources

  • Research Specialty

    Precipitation Forecasting, Computer Modeling

  • 30 Years as Atmospheric Scientist

  • M.S. and Ph.D. in Atmospheric Sciences

    B.S. in Mathematics, Minor in Physics

Lecture 1-Nats 101

Vital statistics

Vital Statistics

  • Office Hours:

    Dr. Mullen – WF 2:00-2:50 pm or by Appointment, PAS 552 621-6842

    Mr. Bieda – MW 12:00-1:30 pm, PAS 476

    Mr. Sakaguchi – TR 10:00-11:00 am, PAS 526

  • Required Text: Essentials of Meteorology-An Invitation to the Atmosphere, 4rd Ed. by C. Donald Ahrens Picture LinkPublisher Download, Save $

  • Recommended Text: Study Guide for Essentials of Meteorology, 4rd Ed. by C. Donald Ahrens Link

  • Required Material: Thirty (30) 4''x 6'' index cards.

Lecture 1-Nats 101

Course description

Course Description

Introduction to the science of weather processes and climate change: atmospheric structure and composition, energy balance, clouds and precipitation, wind systems, fronts, cyclones, weather forecasting, thunderstorms, lightning, hurricanes, ozone hole, air pollution, global warming and optical phenomena.

Lecture 1-Nats 101

Course description1

Course Description

Emphasis will be given to phenomena that have strong impacts on human activities.

The fundamental importance of physics, chemistry and mathematics will be noted.

Atmospheric Sciences  Applied Physics

Lecture 1-Nats 101

Attendance policy

Attendance Policy

Attendance is mandatory, and I reserve the right to tally it throughout the term.

After three unexcused absences prior to week 9, I will submit to the Office of Curriculum and Registration an administrative drop from the course and assign a grade in accordance with UA policy.

Lecture 1-Nats 101

Student behavior

Student Behavior

UA Code of Academic Integrity, Code of Conduct and Student Code of Conduct are enforced in this course.

Every student is responsible for learning these codes and abiding by them.

Students can submit complaints online at

Lecture 1-Nats 101

Grading policy

Grading Policy

Final grade will be based on scores from closed book/closed notes quizzes and final exam.

Quizzes will consist of multiple choice questions and short answer questions.

Quizzes will cover new material presented through the end of the previous lecture day.

Extra credit questions given on some quizzes.

Extra credit impromptu “pop” quizzes given.

Lecture 1-Nats 101

Grading policy1

Grading Policy

  • There will be seven quizzes during the term. Dates for the quizzes areSep 6, Sep 20, Oct 4, Oct 18, Nov 1, Nov 17, Dec 1.No Exceptions

  • Students who arrive late on quiz days will be not allowed to take the quiz after the first student turns in her/his quiz.No Exceptions

  • The lowest score among the seven quizzes will be excluded from the course grade.

    Therefore, no make-up quizzes.

Lecture 1-Nats 101

Grading policy2

Grading Policy

  • If your final exam score exceeds the average of your 6 best quizzes, the quizzes will comprise 60% of your term grade and the final 40%.

    Otherwise, the quizzes will comprise 75% of your term grade and the final 25%.

  • CARROT: If your average is 90% or higher on all 7 quizzes, you will earn an exemption from the final and will receive an "A'' for the course.

  • No Extra Credit Projects. No Exceptions.

    So Plan Accordingly!

Lecture 1-Nats 101

Final examination

Final Examination

Section 4 (9:00 am MWF): SS 100

Dec 15, 8:00 am - 10:00 pm

No Exceptions per UA Policy

  • The final will consist of 60 multiple choice questions and short answer questions.

  • At least 30, but no more than 40 questions, will be taken verbatim from the old quizzes.

Lecture 1-Nats 101

Course grading

Course Grading

  • Course Grading Scale

    A 90% or higher

    B 80.0-89.99%

    C 65.0-79.99%

    D 55.0-64.99%

    E< 55.0%

Lecture 1-Nats 101



Every student is expected to:

  • Complete all of the assigned reading before the lecture, unless you hear otherwise.

  • Devote a minimum of 2 hours outside of class studying, reading, etc. for every hour of classroom lecture. Unit Credit Definition

  • Attend class daily, arrive on time, leave when class is dismissed (courtesy to peer students).

Lecture 1-Nats 101

The golden rule

The Golden Rule

Instructor and students all show:

Mutual Respect!

What exemplifies respectful behavior?

No talking

No electronics

Arriving on time

Remaining seated

Lecture 1-Nats 101

Literacy requirements

Literacy Requirements

Although the writing requirement for this course is negligible, there is a science literacy requirement. This means that we:

  • Use scientific notation for writing numbers(especially rather large or small ones).

  • Specify units of physical quantities (e.g. meters for elevation, etc.).

  • Attempt to quantify physical relationships.

Lecture 1-Nats 101



Course Homepage…is functional!

Click Students and Courses

Click Course Links

Click NATS101 – Mullen

User Name: nats101 (if established)

Password: fall2006 (if established)

Lecture 1-Nats 101

Class format lecture days

Class Format:Lecture Days

  • 3-5 minutes - Map Discussion and Forecast(If computer Gods are friendly)

  • 2-3 minutes - Review/Summary/Clean-upFrom Prior Lecture (Optional)

  • 35-40 minutes - New MaterialLecture, Demos, Discussion

  • 2-3 minutes - Wrap-up and Summary

Lecture 1-Nats 101

Class format quiz days

Class Format:Quiz Days

  • 10 minutes - Last Minute Questions Passing Out Quiz Materials

  • 30 minutes - Quiz

Lecture 1-Nats 101

Listserv established

LISTSERV Established

  • mullen@listserv.Arizona.EDU

  • Use for any questions, comments, discussions that are general interest to the class.

  • is reserved for personal requests not of general interest.

  • To subscribe go to and click the link “Subscribe to a list”

    Follow straightforward instructions!

Lecture 1-Nats 101



If you DID NOT receive an email two days ago, you need to subscribe to the list. You can subscribe by sending an email to with the following as the only line in the body of the message.

subscribe xxxxxx Firstname LastnameSubstitute the list you want to join for xxxxxx, i.e. Substitute your first name for FirstnameSubstitute your last name for Lastname

Lecture 1-Nats 101

Email listserv rules


  • Obtain an “” account

    I will not respond to emails from non “” accounts starting next week

  • Email and Listserv Etiquette No-No’s

    No Flaming

    No Profanity

    No Porn or Other Inappropriate Links

    No Advertisements

    No “Off-Topic” Subject Matter

Lecture 1-Nats 101

Importance of atmosphere

Importance of Atmosphere

  • Necessary for a wide spectrum of features


    Clouds, Rain, Fresh Water

    Erosion by Water and Wind

    Life, Life on Land

    Blue Skies, Red Sunsets, Twilight


Lecture 1-Nats 101

Importance of atmosphere1

Importance of Atmosphere

  • Point 1- Offers Protection

    Consider surface temperatures

    Without atmosphere?

    0oF average, large day-night swings

    Similar to the Moon’s Climate

    With atmosphere…

    60oF average, moderate diurnal swings

Lecture 1-Nats 101

Importance of atmosphere2

Importance of Atmosphere

  • Point 2 - Offers Protection

    Consider Surface Radiation

    Shields against harmful UV radiation

Lecture 1-Nats 101

Importance of atmosphere3

Importance of Atmosphere

  • Consider Survival Time

    Without Food

     few weeks

    Without Water

     few days

    Without Air

     few minutes

Lecture 1-Nats 101

To understand the atmosphere




13,000 km


To Understand the Atmosphere

Examine its interfaces

with land/ocean

with space

Is a very thin skin

99% below 50 km (31 miles)

50% below 5.5 km (3.4 miles)

Atmosphere Picture

Energy Flow Solar Input = Output to Space

Lecture 1-Nats 101

Nats 101 intro to weather and climate section 4 9 00 am mwf ss 100

Note “thinness” of atmosphere in light blue

NASA photo gallery

Lecture 1-Nats 101

Course building blocks

Course Building Blocks

  • Intro  1st week or so

  • Energy  ~2 weeks

  • Moisture  ~2 weeks

  • Dynamics  ~3 weeks

    Above are interdependent

  • Specific Topics  ~6 weeks

Lecture 1-Nats 101

Reading assignment

Reading Assignment

  • "How to Email a Professor" Article

    Homepage Link “Reading Assignments”

  • Ahrens

    Pages 1-13

    Problems 1.2, 1.3, 1.10, 1.14

Lecture 1-Nats 101

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