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Related Experiment Videos

[From sun to earth].

E Uhoda1, G E Piérard

  • 1CHU du Sart Tilman, Service de Dermatopathologie, Liège.

Revue Medicale De Liege
|May 25, 2005
PubMed
Summary
This summary is machine-generated.

The sun emits radiation that reaches Earth, with only a fraction impacting the biosphere. This solar energy is crucial for photogeoclimatology, influenced by factors like latitude and seasons.

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Area of Science:

  • Earth and Space Science
  • Atmospheric Science
  • Climatology

Context:

  • The Earth is constantly exposed to solar electromagnetic radiation, including visible light, ultraviolet (UV) radiation, and infrared (IR) radiation.
  • Only a portion of the Sun's emitted radiation successfully penetrates the Earth's atmosphere and reaches the biosphere.
  • Solar radiation is a fundamental energy source driving Earth's climate system.

Purpose:

  • To describe the fundamental principles of solar radiation reaching Earth.
  • To highlight the key factors influencing the amount of solar energy available to the biosphere.
  • To establish the basis for understanding photogeoclimatology.

Summary:

  • The Sun emits a broad spectrum of electromagnetic radiation.

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  • Visible light, UV, and IR radiation travel to Earth, with atmospheric filtering reducing the amount reaching the biosphere.
  • The availability of this solar energy for photogeoclimatology is modulated by geographical and temporal factors.

    • Impact:

    • Provides foundational knowledge for photogeoclimatology, the study of light's influence on climate.
    • Emphasizes the variability of solar energy input due to latitude, topography, seasons, and diurnal cycles.
    • Underpins research into climate dynamics and biosphere-atmosphere interactions.