#atmospheric science

• Advection — The horizontal movement of an air mass or fluid, accompanied by the transport of its physical properties (such as temperature, moisture, salinity, or density); the physical process of large-scale bulk transport from one point to another within a fluid medium. In meteorology, advection is a key factor in weather dynamics, strictly distinguished from convection (vertical movement) and causing sharp temperature shifts.
• Aeolus — Aeolus; the mythological god, ruler, or keeper of the winds in Greek and Roman mythology, who lived on the floating island of Aeolia and kept storms locked inside a deep cave, releasing them only at the command of the major gods. In a modern context, the term designates various space projects (such as ESA's ADM-Aeolus meteorological satellite), atmospheric phenomena, or structural wind engineering concepts.
• Aerial — Pertaining to the air, located, occurring, or developing in the air or atmosphere; relating to aviation or transport carried out by aircraft. In a botanical sense, it describes plant organs (stems, roots) that grow above the ground, while figuratively, it refers to a dreamy, inattentive person, detached from everyday reality.
• Aerologist — The feminine form for the term aerolog; a female meteorologist specialized in aerology, who deals with investigating the physical structure, thermodynamic properties, and currents within the upper layers of the Earth's atmosphere by interpreting data transmitted by radiosondes or satellites.
• Aerology — A branch of meteorology that studies the physical properties, dynamic phenomena, and thermodynamic processes in the upper layers of the Earth's atmosphere (upper troposphere, stratosphere), beyond the direct influence of the ground; investigation is carried out through direct experimental methods, such as radiosondes, pilot balloons, weather rockets, and satellites.
• Altocumulus — A genus of middle-altitude clouds (situated between 2000 and 6000 meters), characterized by sheets, rolls, or globular masses of white or gray color, arranged in waves, rollers, or regular groups, often giving the impression of a mackerel sky.
• Altostratus — A genus of middle-altitude clouds (situated between 2000 and 6000 meters), characterized by a uniform, striated, or fibrous cloud sheet or layer of gray or bluish color, partially or totally covering the sky, allowing the Sun or Moon to be dimly seen as through ground glass, without generating a halo phenomenon.
• To sun — To expose or become directly exposed to the action of sunbeams; to warm up or light up under the direct effect of the sun; (in a regional structural or meteorological sense) to catch a period of clear, sunny weather following an interval of clouds or rain.
• Azures — A secondary plural form of the noun azure or a poetic substantivization designating multiple shades, reflections, or vast expanses of sky and marine blue. In high literary style, the term evokes the chromatic diversity and luminosity of atmospheric layers observed at different times of the day.