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Clouds, Clouds, and More Clouds

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Links to Resources GLOBE AIM CLOUD S COOL MY NASA DATA CALIPSO NLC Differences between mesospheric and tropospheric clouds Limited to 60o to latitude for NLCs ... – PowerPoint PPT presentation

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Title: Clouds, Clouds, and More Clouds


1
Clouds, Clouds, and More Clouds
  • Paul Adams
  • Professor of Physics and Anschutz Professor of
    Education
  • Fort Hays State University
  • Hays, KS 67601
  • padams_at_fhsu.edu

2
What do we KNOW about clouds?
  • Brainstorm in a group of 3 to 5.

3
WHAT questions do we have about clouds?
4
Look again at the Atmosphere Layers
5
What does it take to make a cloud?
6
A Classic Demonstration with a Twist or a Squeeze!
  • Cloud in a Bottle from AIM
  • From SCOOL (http//scool.larc.nasa.gov
    NB-2005-05-0002-LaRC)
  • Take a cold bottle outside on a warm day and
    notice that water drops form on it. This is
    called CONDENSTATION. Clouds from the same way
  • Invisible water molecules ride warm air currents
    and cool as they come in contact with colder air
    high in the sky. The chilled molecules condense
    onto tiny particles in the air to form water
    drops.
  • Billions of chilled water drops become visible
    CLOUDS you can seex!

7
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8
http//aim.hamptonu.edu/library/gallery/gal-sci.ht
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9
http//aim.hamptonu.edu/library/gallery/gal-sci.ht
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10
http//aim.hamptonu.edu/library/gallery/gal-sci.ht
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11
http//aim.hamptonu.edu/library/gallery/gal-sci.ht
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12
http//aim.hamptonu.edu/library/gallery/gal-sci.ht
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13
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14
What does it take to do a GLOBE study?
  • A question or project
  • How does cloud cover vary at your school to
    nearby schools?
  • What is weather associated with different cloud
    types?
  • Do the cloud types change over a day?
  • CLOUDSAT A cloud project http//cloudsat.atmos.
    colostate.edu/education

15
We need a place to start
  • Defining a study site
  • The basic for the GLOBE Cloud Protocol
  • Entering the GLOBE Web Site http//www.globe.gov
  • Becoming a GLOBE School-

16
What did we LEARN?
17
Links to Resources
  • GLOBE
  • AIM
  • CLOUD
  • SCOOL
  • MY NASA DATA
  • CALIPSO

18
NLC
  • Differences between mesospheric and tropospheric
    clouds
  • Limited to 60o to latitude for NLCs but an
    increasing sightings at lower latitudes
  • So, how can you study clouds in your classroom?
  • GLOBE -

19
The Aeronomy of Ice in the Mesosphere (AIM)
Mission
  • Aeronomy A term denoting the physics and
    chemistry of the upper atmosphere. It is
    concerned with upper-atmospheric composition (ie,
    nature of constituents, density, temperature,
    etc.) and chemical reactions.
  • Go to http//aim.hamptonu.edu/index.html

20
What are NLCs/PMCs.(more later tonight!!)
  • NLCs (Noctilucent) appear only during the late
    spring and summer and can only be seen just after
    sunset or just before sunrise at 50 to 60 degrees
    latitude
  • First recorded in 1885.
  • May be occurring more frequently, appearing at
    lower latitudes and getting brighter POSSIBLY
    due to Global Warming
  • Not clear how NLCs form in the first place.

21
Noctilucent, or Polar Mesospheric Clouds
  • NLCs lit by sunlight when the sun is below the
    horizon geometry is the key!
  • AIM will look down and sample the region where
    NLCs/PMCs are at and will be visible all of the
    time

http//en.wikipedia.org/wiki/Noctilucent_clouds
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