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  2. Aegean Sea - Wikipedia

    en.wikipedia.org/wiki/Aegean_Sea

    Aegean Sea Intermediate Water – Aegean Sea Intermediate Water extends from 40–50 m (130–160 ft) to 200–300 m (660–980 ft) with temperatures ranging from 11–18 °C (52–64 °F). Aegean Sea Bottom Water – occurring at depths below 500–1,000 m (1,600–3,300 ft) with a very uniform temperature (13–14 °C (55–57 °F)) and ...

  3. Air mass - Wikipedia

    en.wikipedia.org/wiki/Air_mass

    Arctic air is deeply cold, colder than polar air masses. Arctic air can be shallow in the summer, and rapidly modify as it moves equatorward. [8] Polar air masses develop over higher latitudes over the land or ocean, are very stable, and generally shallower than arctic air. Polar air over the ocean (maritime) loses its stability as it gains ...

  4. Density of air - Wikipedia

    en.wikipedia.org/wiki/Density_of_air

    Air density, like air pressure, decreases with increasing altitude. It also changes with variations in atmospheric pressure, temperature and humidity. At 101.325 kPa (abs) and 20 °C (68 °F), air has a density of approximately 1.204 kg/m 3 (0.0752 lb/cu ft), according to the International Standard Atmosphere (ISA).

  5. Atmosphere of Earth - Wikipedia

    en.wikipedia.org/wiki/Atmosphere_of_Earth

    The density of air at sea level is about 1.2 kg/m 3 (1.2 g/L, 0.0012 g/cm 3). Density is not measured directly but is calculated from measurements of temperature, pressure and humidity using the equation of state for air (a form of the ideal gas law). Atmospheric density decreases as the altitude increases.

  6. Atmospheric circulation - Wikipedia

    en.wikipedia.org/wiki/Atmospheric_circulation

    When the air reaches the polar areas, it has cooled by radiation to space and is considerably denser than the underlying air. It descends, creating a cold, dry high-pressure area. At the polar surface level, the mass of air is driven away from the pole toward the 60th parallel, replacing the air that rose there, and the polar circulation cell ...

  7. Marine layer - Wikipedia

    en.wikipedia.org/wiki/Marine_layer

    A marine layer is an air mass that develops over the surface of a large body of water, such as an ocean or large lake, in the presence of a temperature inversion. The inversion itself is usually initiated by the cooling effect caused when cold water on the surface of the ocean interacts with a comparatively warm air mass. [1]

  8. Convection - Wikipedia

    en.wikipedia.org/wiki/Convection

    Warm air has a lower density than cool air, so warm air rises within cooler air, [19] similar to hot air balloons. [20] Clouds form as relatively warmer air carrying moisture rises within cooler air. As the moist air rises, it cools, causing some of the water vapor in the rising packet of air to condense. [21]

  9. Convection cell - Wikipedia

    en.wikipedia.org/wiki/Convection_cell

    Warm air has a lower density than cool air, so warm air rises within cooler air, [2] similar to hot air balloons. [3] Clouds form as relatively warmer air carrying moisture rises within cooler air. As the moist air rises, it cools, causing some of the water vapor in the rising packet of air to condense. [4]