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  2. Atmosphere of Earth - Wikipedia

    en.wikipedia.org/wiki/Atmosphere_of_Earth

    This is sometimes referred to as a unit of standard atmospheres (atm). Total atmospheric mass is 5.1480×1018kg (1.135×1019lb),[42]about 2.5% less than would be inferred from the average sea level pressure and Earth's area of 51007.2 megahectares, this portion being displaced by Earth's mountainous terrain.

  3. Troposphere - Wikipedia

    en.wikipedia.org/wiki/Troposphere

    The troposphere is the lowest layer of the atmosphere of Earth. It contains 80% of the total mass of the planetary atmosphere and 99% of the total mass of water vapor and aerosols, and is where most weather phenomena occur. [ 1 ] From the planetary surface of the Earth, the average height of the troposphere is 18 km (11 mi; 59,000 ft) in the ...

  4. Mesosphere - Wikipedia

    en.wikipedia.org/wiki/Mesosphere

    From Earths surface to the top of the stratosphere (50 km) is just under 1% of Earth's radius. The mesosphere (/ ˈmɛsəsfɪər, ˈmɛz -, ˈmiːsə -, - zə -/; [ 1 ] from Ancient Greek μέσος (mésos) 'middle' and - sphere) is the third layer of the atmosphere, directly above the stratosphere and directly below the thermosphere.

  5. Weather - Wikipedia

    en.wikipedia.org/wiki/Weather

    Weather is the state of the atmosphere, describing for example the degree to which it is hot or cold, wet or dry, calm or stormy, clear or cloudy. [ 1 ] On Earth, most weather phenomena occur in the lowest layer of the planet's atmosphere, the troposphere, [ 2 ][ 3 ] just below the stratosphere. Weather refers to day-to-day temperature ...

  6. Climate system - Wikipedia

    en.wikipedia.org/wiki/Climate_system

    The five components of the climate system all interact. They are the atmosphere, the hydrosphere, the cryosphere, the lithosphere and the biosphere. [1]: 1451 Earth's climate system is a complex system with five interacting components: the atmosphere (air), the hydrosphere (water), the cryosphere (ice and permafrost), the lithosphere (earth's upper rocky layer) and the biosphere (living things).

  7. Nebular hypothesis - Wikipedia

    en.wikipedia.org/wiki/Nebular_hypothesis

    t. e. The nebular hypothesis is the most widely accepted model in the field of cosmogony to explain the formation and evolution of the Solar System (as well as other planetary systems). It suggests the Solar System is formed from gas and dust orbiting the Sun which clumped up together to form the planets. The theory was developed by Immanuel ...

  8. Rossby wave - Wikipedia

    en.wikipedia.org/wiki/Rossby_wave

    Rossby waves, also known as planetary waves, are a type of inertial wave naturally occurring in rotating fluids. [1] They were first identified by Sweden-born American meteorologist Carl-Gustaf Arvid Rossby in the Earth's atmosphere in 1939. They are observed in the atmospheres and oceans of Earth and other planets, owing to the rotation of ...

  9. Carbon dioxide in Earth's atmosphere - Wikipedia

    en.wikipedia.org/wiki/Carbon_dioxide_in_Earth's...

    In Earth's atmosphere, carbon dioxide is a trace gas that plays an integral part in the greenhouse effect, carbon cycle, photosynthesis and oceanic carbon cycle. It is one of three main greenhouse gases in the atmosphere of Earth. Water vapor is the primary greenhouse gas, as of 2010, contributing 50% of the greenhouse effect, followed by ...

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