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ATMO 201- Final Exam Guide - Comprehensive Notes for the exam ( 45 pages long!)


Department
Atmospheric Sciences
Course Code
ATMO 201
Professor
Timothy Logan
Study Guide
Final

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TAMU
ATMO 201
FINAL EXAM
STUDY GUIDE

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Lecture 1
Tuesday, January 17, 2017
4:15 PM
Extreme Weather
What's going on in Texas and the world?
o Past flooding in Houston and other parts of Texas
When forecasts go wrong….
Short lead time - storms hit before upgrade to slight risk (SLGT). 35 tornadoes
total
o 5% chance of tornadoes is still significant
o The eather serice did’t predict the daage i Idiaapolis
Bryan, TX EF - 1 "Wedge" Tornado
Read pg. 4-14
Answer questions 1-11 on pg. 32
What severe weather events have you experienced?
Chapter 1
The Journey Begins
Startrek planet - has absolutely no water
Extreme Weather Hazards
Number of weather and climate related disasters by state that caused at
least I billion dollars of damage
o Graph of US, color coated by number of events
NORTH CAROLINA (Wiped out all of the beach houses and tobacco crops)
OKLAHOMA (tornadoes)
CALIFORNIA (droughts and floods)
o Pie chart of weather related deaths by type
Heat is the biggest percentage (43%)
Which ones effect individuals (floods) and which ones effect communities (heat)
o Table from textbook
We care about drought because of crops
China - drought and rice don't go together
o Graph of US, color coated by total fatalities per million people per year
Flooding (top), Lightning (middle), Tornado (bottom)
MISSISSIPPI (2.8 - highest index for tornadoes)
SOUTH DAKOTA (7.2 - highest index for flooding)
VERMONT (why is Vermont higher in lightning than the other surrounding
states? Higher elevation)
Why we all should care…
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Climate change offers unique opportunity to study Earth's atmosphere in a
multidisciplinary way
o Merges different majors
Geoscience becoming a lost profession
Too many people are caught off guard when natural disasters strike
o Helps to be able to recognize and identify imminent threats and danger
Remember
o No one has lived long enough to see and record everything
Journey into the Atmosphere
Weather Essentials
o 3 things for weather to occur
o Source of radiant energy (THE SUN)
o Fluid atmosphere in order to transport energy from point a to point b
o Some type of cycle that transforms the fluid between the three states of matter
Solid, liquid, gas
Enhances energy absorption or release
Earth's Atmosphere
Composition
Permanent Gases (Major)
o Nitrogen (78.08%)
o Oxygen (20.95%)
o Argon (0.93%)
Variable Gases (Trace)
o Water vapor
o Carbon Dioxide
o Ozone
Role of Nitrogen and Oxygen
o Nitrogen - molecular weight is 28 g/mol
Diatomic in nature, N2
Significantly adds to "weight" of atmosphere
o Oxygen - molecular weight is 32 g/mol
Diatomic in nature, O2
Reacts with ultraviolet radiation to form ozone (o3)
O2 and o3 can absorb UV solar radiation
o Molecular weight of dry air is 28.97 g/mol
Why??
Take weight of molecules, multiply by its percentage (28 x .78 - nitrogen)
Role of Trace Gases
o Noble gases of Argon, Neon, Helium, and Xenon
o Inert components
o Chapman Cycle
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