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  2. Glossary of meteorology - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_meteorology

    Also actiniform. Describing a collection of low-lying, radially structured clouds with distinct shapes (resembling leaves or wheels in satellite imagery), and typically organized in extensive mesoscale fields over marine environments. They are closely related to and sometimes considered a variant of stratocumulus clouds. actinometer A scientific instrument used to measure the heating power of ...

  3. 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.

  4. Weather front - Wikipedia

    en.wikipedia.org/wiki/Weather_front

    In a warm occlusion, the cold air mass overtaking the warm front is warmer than the cold air mass receding from the warm front and rides over the colder air while lifting the warm air. [ 2 ] A wide variety of weather can be found along an occluded front, with thunderstorms possible, but usually their passage is also associated with a drying of ...

  5. Glossary of environmental science - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_environmental...

    For example, assuming a constant amount of vegetation on the planet, burning wood will add carbon to the atmosphere in the short term but this carbon will cycle back into new plant growth. carbon pool – a storage reservoir of carbon. carbon sink – any carbon storage system that causes a net removal of greenhouse gases from the atmosphere.

  6. Thermal wind - Wikipedia

    en.wikipedia.org/wiki/Thermal_wind

    Pink arrows illustrate the direction and amplitude of the horizontal wind. Only in the baroclinic atmosphere (b) do these vary with height. Such variation illustrates the thermal wind. In a barotropic atmosphere, where density is a function only of pressure, a horizontal pressure gradient will drive a geostrophic wind that is constant with ...

  7. Humid subtropical climate - Wikipedia

    en.wikipedia.org/wiki/Humid_subtropical_climate

    A humid subtropical climate is a subtropical-temperate climate type, characterized by long and hot summers, and cool to mild winters. These climates normally lie on the southeast side of all continents (except Antarctica), generally between latitudes 25° and 40° and are located poleward from adjacent tropical climates, and equatorward from either humid continental (in North America and Asia ...

  8. Heat dome - Wikipedia

    en.wikipedia.org/wiki/Heat_dome

    A heat dome is a weather phenomenon consisting of extreme heat that is caused when the atmosphere traps hot air as if bounded by a lid or cap. Heat domes happen when strong high pressure atmospheric conditions remain stationary for an unusual amount of time, preventing convection and precipitation and keeping hot air "trapped" within a region.

  9. Air mass - Wikipedia

    en.wikipedia.org/wiki/Air_mass

    Mountains and warm bodies of water can slow the movement of fronts. [11] When a front becomes stationary , and the density contrast across the frontal boundary vanishes, the front can degenerate into a line which separates regions of differing wind velocity, known as a shearline . [ 12 ]