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Solar Radiation, Albedo, and Light Transmission in Seawater

Solar Radiation, Albedo, and Light Transmission in Seawater. Objectives: To examine how the sun’s energy affects the ocean environment. The Earth’s revolution around the sun. Equinoxes and solstices. Exercise #1 – Solar Constant.

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Solar Radiation, Albedo, and Light Transmission in Seawater

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  1. Solar Radiation, Albedo, and Light Transmission in Seawater Objectives: To examine how the sun’s energy affects the ocean environment

  2. The Earth’s revolution around the sun

  3. Equinoxes and solstices

  4. Exercise #1 – Solar Constant • Set the equator to the same height as your light by using the meter stick • Measure using the Lux Meter • Lux meters have different settings (x1, x10, x100) • Hold it flat to the globe for all readings

  5. Sun’s rays and surface area

  6. Exercise #2 – Latitude • Latitude lines are parallel to the equator. • Keep Lux meter flat to the globe. • When answering your questions, be sure to move the globe and take new measurements.

  7. Execise 3# - Albedo • The incoming radiation will be the same for every sample. • Do not move or change the set-up without asking the TA, only change out the sample trays. • Ask the TA for an Ice sample to measure. Ice doesn’t have a dark sand bottom. • Best to answer question in the way it SHOULD be, not the way your results suggest.

  8. Exercise #4 – Visible light in Water • Be sure that the light is in the middle depth of water. • Different ways to measure it? • Red should have lowest transmission • Best to answer question in the way it SHOULD be, not the way your results suggest.

  9. Exercise #5&6– Settling of particles • Start with 2.4 gms. powdered silica • Be sure to add an additional 1.2 g each time . • You must put your own scale into the forms. • Stir thoroughly when required.

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