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  2. Atmospheric optics - Wikipedia

    en.wikipedia.org/wiki/Atmospheric_optics

    This temperature inversion is the opposite of what is normally the case; air is usually warmer close to the surface, and cooler higher up. In calm weather, a layer of significantly warmer air can rest over colder dense air, forming an atmospheric duct which acts like a refracting lens, producing a series of both inverted and erect images.

  3. Lightning - Wikipedia

    en.wikipedia.org/wiki/Lightning

    The production of X-rays by a bolt of lightning was predicted as early as 1925 by C.T.R. Wilson, [104] but no evidence was found until 2001/2002, [105] [106] [107] when researchers at the New Mexico Institute of Mining and Technology detected X-ray emissions from an induced lightning strike along a grounded wire trailed behind a rocket shot ...

  4. Atmospheric electricity - Wikipedia

    en.wikipedia.org/wiki/Atmospheric_electricity

    Cloud-to-ground lightning.Typically, lightning discharges 30,000 amperes, at up to 100 million volts, and emits light, radio waves, x-rays and even gamma rays. [1] Plasma temperatures in lightning can approach 28,000 kelvins.

  5. Sunlight - Wikipedia

    en.wikipedia.org/wiki/Sunlight

    Although the solar corona is a source of extreme ultraviolet and X-ray radiation, these rays make up only a very small amount of the power output of the Sun (see spectrum at right). The spectrum of nearly all solar electromagnetic radiation striking the Earth's atmosphere spans a range of 100 nm to about 1 mm (1,000,000 nm).

  6. Heat lightning - Wikipedia

    en.wikipedia.org/wiki/Heat_lightning

    This is due to high moisture content in the lower atmosphere and high surface temperature, which produces strong sea breezes along the Florida coast. [5] As a result, heat lightning is often seen over the water at night, the remnants of storms that formed during the day along a sea breeze front coming in from the opposite coast.

  7. Brightness temperature - Wikipedia

    en.wikipedia.org/wiki/Brightness_temperature

    Brightness temperature or radiance temperature is a measure of the intensity of electromagnetic energy coming from a source. [1] In particular, it is the temperature at which a black body would have to be in order to duplicate the observed intensity of a grey body object at a frequency ν {\displaystyle \nu } . [ 2 ]

  8. Top weather news for Thursday, Feb. 20, 2025: Millions of people across the U.S. are on alert for dangerously cold temperatures in the wake of a deadly winter storm that raced … USA TODAY 8 ...

  9. Global atmospheric electrical circuit - Wikipedia

    en.wikipedia.org/wiki/Global_atmospheric...

    The basic concept of a global circuit is that through the balance of thunderstorms and fair weather, the atmosphere is subject to a continual and substantial electrical current. Principally, thunderstorms throughout the world carry negative charges to the ground, which is then discharged gradually through the air away from the storms, in ...