Thermosphere

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The thermosphere is the layer o the Yird's atmosphere directly abuin the mesosphere. The exosphere is abuin that but is a minor layer o the atmosphere. Within this layer o the atmosphere, ultraviolet radiation causes photoionisation/photodissociation o molecules, creautin ions in the ionosphere. Takkin its name frae the Greek θερμός (pronoonced thermos) meanin heat, the thermosphere begins aboot 85 kilometres (53 mi) abuin the Yird.[1] At thir heich altitudes, the reseedual atmospheric gases sort intae strata accordin tae molecular mass (see turbosphere). Thermospheric temperaturs increase wi altitude due tae absorption o heichly energetic solar radiation.

References[eedit | eedit soorce]

  1. Duxbury & Duxbury. Introduction to the World's Oceans. 5ed. (1997)