NSTA Denver Regional 2013 National Center for University Corporation Atmospheric Research for Atmospheric Research Teresa Eastburn Tim Barnes.

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Presentation transcript:

NSTA Denver Regional 2013 National Center for University Corporation Atmospheric Research for Atmospheric Research Teresa Eastburn Tim Barnes

NSTA Denver Regional The Interior of the Sun

NSTA Denver Regional

4 Sunspots Magnetic “loops” near sunspot area Source NASA TRACE Spacecraft

NSTA Denver Regional 2013 Solar Flares

NSTA Denver Regional Coronal Mass Ejection

NSTA Denver Regional Solar Cycle

NSTA Denver Regional Earth’s Magnetosphere

NSTA Denver Regional 2013 Activity on The Nature of Light – Absorption, Reflection (Scattering), Transmission, or Combination of These Meet the Photon Folks

NSTA Denver Regional 2013 Where does color come from? What if...

NSTA Denver Regional Weather and Light Text

NSTA Denver Regional Air Temperature

NSTA Denver Regional Atmosphere ’ s Convection Currents

NSTA Denver Regional White-light image of the sun. Taken on September 13, 2001 by the Big Bear Observatory The Sun in Visible Light -- What color is this light? White? Are you sure? Let’s find out! Taking Light Apart; Putting It Back Together

NSTA Denver Regional 2013 Blue Sky* Activity... and Red Sunsets

NSTA Denver Regional Our Atmosphere from Space

NSTA Denver Regional Sun seen in light/radiation that is invisible to our eyes. Soft X-ray image of the sun. Taken on September 13, 2001 by the Yohko Spacecraft. Extreme Ultraviolet image of the sun. Taken on September 13, 2001 by the Extreme Ultraviolet Imaging Telescope aboard the SOHO Spacecraft.

NSTA Denver Regional 2013 Ultraviolet Light Infrared Light Visible Light

NSTA Denver Regional

NSTA Denver Regional 2013 Wavelength is the distance from the crest of one wave to the crest of the next. Wavelength is measured in meters. Frequency is the number of waves in a given unit of time, usually a second. Frequency is measured in Hertz.

NSTA Denver Regional 2013 Wave Demo Activity

NSTA Denver Regional 2013 Spectroscope Activity

NSTA Denver Regional a. Incandescent b. Fluorescent c. Hg low pressure d. Hg high pressure e. Metal Halide f. Na (sodium) high g. Na low pressure h. Red Neon Sign i. Neon Sign (other than red)

NSTA Denver Regional 2013 Our Atmospheric Filter

NSTA Denver Regional ALBEDO – the amount of light energy reflected by the Earth, measured on a scale from 0 to 1 or 0 to 100% (Earth’s average albedo is about 0.31 or 31% -- Snow has a high albedo; the ocean has a low albedo))

NSTA Denver Regional Albedo Zebra Stripes!

NSTA Denver Regional Source: Jet Propulsion Laboratory & the University of California IR movie

NSTA Denver Regional

NSTA Denver Regional million square miles 3 times the size of the U.S.

NSTA Denver Regional

NSTA Denver Regional Refraction of Light Light is bent by refraction. The index of refraction for water is 4/3, implying that light travels 3/4 as fast in water as it does in a vacuum.

NSTA Denver Regional The LEO tracks the GPS phase while the signal is occulted to determine the Doppler -- when you understand light, you can understand today ’ s most advanced technological tools. For instance you have to understand principals of refraction to understand radio occultation. (Demonstrate refraction by having students stick a sharp pencil through a closed baggy filled with water LEO v leo v GPS Tangent point

NSTA Denver Regional Ultraviolet Light

NSTA Denver Regional 2013 Thank you for joining us today for In a New Light