Transcript TODAY`S ANNOUNCEMENTS - NAU jan.ucc.nau.edu web server

ANNOUCEMENTS
• Second warning: Exam 3
Monday, April 9: end of
volcanoes, tsunami, and
weather through TORNADOES;
review Thursday 5 PM,
UPSTAIRS in Rm 223.
• NAU IS in session this Friday…
Solomon Islands: April 2, 7.40 am (local
time there); 2.40 pm April 1 here
http://www.prh.noaa.gov/ptwc/
purple is subduction; red is transform
Homework! due Wednesday
(remember this will all be on the website)
• Go to http://earthquake.usgs.gov/eqcenter/
recenteqsww/Quakes/us2007aqbk.php#summary
and any public news sources you chose (tell me
which)
• Read the website summary, and follow the link to the
Pacific Tsunami Warning Center. You are after event
#1
Homework! due Wednesday
• Send me an email that answers these questions:
– what caused the tsunami (what tectonic activity in the area)?
– when was the first warning sent out by the PTWC?
• where are the places the PTWC issued warnings for (where on
Earth?)?
• what were the projected arrival times?
• what did the PTWC say by way of warning?
– how long did it take before they expanded the warning?
– when did they start getting arrival times (look carefully)?
• where were the first places to report arrival/wave height, etc.?
– how are wave heights measured?
– where were the biggest waves recorded?
– when were warnings cancelled?
– what damage/casualties occurred and where?
Homework! due Wednesday
Send your work in an email with <<GLG112
__________>>
in the subject line. If you send an
(your
name)
attachment, be sure the name of the attached file is
<<GLG 112 ___________>>.
(your name)
QUIZ (as promised) YOUR OWN
WORK please, not with your
neighbor
close up books and notes please
you need 1/2 piece of paper (tear
carefully please…find to use a whole
sheet)
you have until 5 minutes for this
when you’re done, turn it over and
pass to the middle aisle
PIN_________ (1 point)
quiz
1. In what main part of the atmosphere does
weather form? (1 point for where it is, 2 pts for name of the layer)
2. Is the ozone layer in this same part of the
atmosphere? (yes or no, 1 point)
3. What kind of clouds build up to form
thunderstorms (and tornadoes)? (1 point)
4. e.c. (1 point) what is the shape at the top of a
“mature” thunderstorm cloud (draw or give
name)
Your attention please
• Some of your peers are getting very
tired of the semi-constant chattering that
goes on. This includes during clicker
exercises, while I am talking, and while
others are asking questions
• I will ask you to leave if it appears that
you can’t respect your classmates
Hazardous weather/
tornadoes/hurricanes
READ for Wednesday
• chapter 7: sec. 7.5, including the case
study (I will ask about lightning on the
exam). Read the survivor story (7.2)
• for Friday you will need to read
7.6/7.7/7.8. Be sure you can answer
the “critical thinking questions” #3, 4,
and 5
Clickers!
What is the issue with the name
of NAU’s ‘Center for High Altitude
Training’?
1. It should be High Elevation
2. Compared to other places with
excellent training facilities, we’re not
really at high altitude
3. It is named correctly
What is the relation between highand low-pressure air masses and
whether the air mass will rise or fall?
1. High-pressure air falls/low-pressure air
rises
2. High-pressure air rises/low-pressure
air falls
3. High- and low-pressure air can rise or
fall
4. High pressure rises or falls, low
pressure only falls
Why does a rain shadow form?
Assume wind from the west.
1. Warm air carries little moisture and so the
rain shadow is always warm and dry
2. Warm air carries moisture that is deposited
on the west side of a mountain as it rises
and cools off
3. Cool air carries moisture that is deposited
on the west side of a mountain as it rises
and warms up
South of Flagstaff is something called
the Mogollon Rim -- the topography rises
up from the desert and the Verde Valley
to the Colorado Plateau
Mogollon
Rim
Flagstaff
Verde Valley
As air masses come up from the
desert, where does the most
moisture fall?
Mogollon
Rim C
B
Verde Valley
A
Flagstaff
D
the Coriolis effect: moving air around
the planet
Cloud moving south
turns west
• importance: air
(clouds) move from
high pressure to low
pressure, but can’t
get there in a
straight line
• in the southern
hemisphere, clouds
turn west
CLICKERS please!
Which hemisphere is this storm
in?
N
1. northern
2. southern
Picture from the international
space station!
S
Fronts (the last jargon you need)
• Cold air meets warm (or vice versa)
– one mass is moving more than the other
– cold front = cold moving into warm
– warm front = warm moving into cold
– stationary front = neither is moving
• Which will move up/down when they
meet?