AOS 100 Weather and Climate Severe and Hazardous Weather

1
AOS 100Weather and ClimateSevere and Hazardous
Weather

• Professor Gregory Tripoli
• tripoli_at_aos.wisc.edu

2
Grading

• Homework 20
• Project 10
• Test 1 20
• Test 2 20
• Final (cumulative) 30

3
Term Project

• The Assignment Prepare a scrapbook consisting
  of at least 10 pictures of weather phenomena
  which you must personally photograph during this
  Fall semester. Also
• The phenomena must be taken from the official
  list.
• No more than one example from any list item.
• The final scrapbook may be handed in in
  electronic or hard copy form
• Electronic Use MS word or Word Perfect
• Hard Copy 8.5x11 inch paper in a binder,
  typewritten
• The picture takes a page and the explanation
  appears on the facing page.
• The assignment is worth a base 1.0 points out of
  a total of 10.0 points forming your course grade
• If the point total of your 10 pictures is more
  than 10 points, I will give you up to a maximum
  of 15 points toward your grade, amounting to a 5
  point extra credit option.
• Each picture must also include a 1 page
  documentation and description according to the
  instructions included here.
• The amount of credit given for each picture will
  be based on
• 80 (of maximum points on official list ) for
  the quality of the picture itself, rated by
• how well the phenomenon is captured and framed
• How magnificent of a specimen you found
• 20 (of maximum points on official list ) for
  the completeness of the explanation prorated as
  shown in explanation
• Caution If we find any picture sharing (you must
  take your own pictures) or fraudulent pictures
  (like scanning from a book, or downloading from
  the web), we will give you -10 for the
  project, meaning you will start with only a
  possible 80 for your total grade before exams
  and homework!

4
Official List of Phenomena(use no more than
one from each bulleted line)

• Alto cumulus (1.0 pt)
• Cirro-cumulus (1.0 pt)
• Strato-cumulus (1.0 pt)
• Visible breath (1.0 pt)
• Steam Fog(1.0 pt) or Steam Devil (2.0pts)
• Dust Devil (2.0 pts)
• Cirro-stratus (1.0 pt)
• Stratus Cloud (1.0 pts)
• Mares tail cirrus (1.0 pt)
• Valley Fog (1. pt)
• A Field of billow or wave clouds (1.0 pt)
• Orographic (Foehn or Chinook) Cloud (1.0 pt)
• Lenticular Cloud (1.0 pt)

• Dendrite crystals (1 pt)
• Dendrite aggregates (1pt)
• Hexagonal Plate crystals (1pt)
• Spatial Dendrites (1pt)
• Column Crystals (1pt)
• Capped Columns (1pt)
• Needle crystals (1pt)
• Needle aggregates (1pt)
• Hail (1pt)
• Rain Drop in flight (2 pt)
• Cumulus humilis including base and cloud top
  (1.0 pt)
• Cumulus Congestus includied in view is cloud
  base and cloud top (1.0 pt)
• Cumulus Fractus (1.0 pt)
• Cumulonimbus cloud including view of cloud base
  and anvil (1.0 pt)
• Cumulonimbus top with Pileus (1.5 pts)
• Cumulonimbus with overshooting top (1.5 pts)
• Scud cloud (0.5 pts)

Layered cumulus types
Micro-photography
vorticies
Flat clouds
cumulus types
Mountain related
Micro-photography
Thunderstorms
Optical Phenomena
Note For explanations of these clouds, I will
post a cloud chart on the web. However you will
also need to do some independent research either
on the web, or refer to another text book such as
Ahrens, or Ackerman.
5
Narrative Part(with an example)

• Date and Time Wednesday, September 4, 2002 at 6
  pm
• Location and circumstance This picture was
  taken while going out to dinner at Outback
  restaurant on the west side of Madison.
• Direction The camera was pointing southwest and
  upward about 45 degrees from the horizon
• Description Mares tail cirrus. These are thin
  fibrous clouds composed entirely of ice which
  have a distinctive hooked appearance resulting
  from wind shear across the falling ice particles.
  
• Estimated Height or Temperature (5) The cloud
  is estimated to be at approximately 30000 ft
  above the ground.
• Weather Situation and Web Weather Map (10 pts)
  These clouds were formed on the north side of a
  warm front that stretched from the Detroit,
  Michigan area westward to Des Moines, Iowa (see
  figure xx).
• Theory on How It Was Formed (5) These clouds
  were likely formed by the rising currents of air
  over the top of the warm front .

Note Numbers 1-4 are required for any credit at
all to be given for the picture. Numbers 5-7 are
percentages of the total credit for your answer
that come from these parts. So a 2 point cloud
from the official list will derive .04 of its 2
points from answers 5-7.
6
Sharing with Class

• Following the first exam, I will be randomly
  calling on one student from the class at least
  once per week to come to the front of the class
  and share a picture that they took and the
  explanation that they made.
• The presentation will not be graded, but if you
  come up with nothing or are absent 1 point will
  be deducted from your project grade.