Barometer – Definition
Barometer An instrument used to measure atmospheric pressure. Two examples are the aneroid barometer and the mercurial barometer. Atmospheric Pressure The pressure exerted by the atmosphere at a given...
View ArticleBarometric Pressure – Definition
Barometric Pressure The pressure exerted by the atmosphere at a given point. Its measurement can be expressed in several ways. One is in millibars. Another is in inches or millimeters of mercury (Hg)....
View ArticleBiosphere – Definition
Biosphere The transition zone between the earth and the atmosphere within which most terrestrial life forms are found. It is considered the outer portion of the geosphere and the inner or lower...
View ArticleBlocking High – Definition
Blocking High The development of a warm ridge or cutoff high aloft at high latitudes which becomes associated with a cold high at the surface, causing a split in the westerly winds. Such a high will...
View ArticleBoiling Point – Definition
Boiling Point The temperature at which a liquid changes to a vaporous state. The temperature at which the equilibrium vapor pressure between a liquid and its vapor is equal to the external pressure on...
View ArticleBoundary Layer – Definition
Boundary Layer The lowest layer of the earth’s atmosphere, usually up to 3,300 feet, or one kilometer, from the earth’s surface, where the wind is influenced by the friction of the earth’s surface and...
View ArticleBoyle’s Law – Definition
Boyle’s Law States that when the temperature is held constant, the volume of a gas is inversely proportional to its pressure. Therefore, if the pressure increases, the volume decreases and visa versa....
View ArticleCalm – Definition
Calm Atmospheric conditions devoid of wind or any other air motion. In oceanic terms, it is the apparent absence of motion of the water surface when there is no wind or swell. Atmosphere The gaseous...
View ArticleCalorie – Definition
Calorie In meteorology, it is the amount of heat required to raise the temperature of one (1) gram of water one (1) degree Celsius. It is a unit of heat energy. Meteorology / Meteorologist The science...
View ArticleCap – Definition
Cap Composed of a layer of warmer, dryer air aloft which may suppress or delay the development of thunderstorms. As an air parcel rises, it becomes cooler relative to the ambient, or surrounding, air...
View ArticleCeiling – Definition
Ceiling The lowest cloud layer that is reported as broken or overcast. If the sky is totally obscured, then it is the height of the vertical visibility. Cloud A visible collection of minute particle...
View ArticleCelsius Temperature Scale – Definition
Celsius Temperature Scale A temperature scale where water at sea level has a freezing point of 0°C (Celsius) and a boiling point of +100°C. More commonly used in areas that observe the metric system...
View ArticleCentral Pressure – Definition
Central Pressure The atmospheric pressure at the center of a high or low. It is the highest pressure in a high and the lowest pressure in a low, referring to the sea level pressure of the system on a...
View ArticleCentrifugal Force, Centripetal Force – Definition
Centrifugal Force The apparent force in a rotating system that deflects masses radially outward from the axis of rotation. This force increases towards the equator and decreases towards the poles....
View ArticleCharles’ Law – Definition
Charles’ Law States that when the pressure is held constant, the volume of a gas varies directly with the temperature. Therefore, if the pressure remains constant, the volume of a gas will increase...
View ArticleCirculation – Definition
Circulation The flow or motion of a fluid in or through a given area or volume. In meteorology, it is used to describe the flow of air as it moves around a pressure system in the atmosphere. It...
View ArticleCirculation Cells – Definition
Circulation Cells Large areas of air movement created by the rotation of the earth and the transfer of heat from the equator toward the poles. Circulation is confined to a specific region, such as the...
View ArticleCirriform – Definition
Cirriform Clouds composed of small particles, mostly ice crystals. Because the particles are fairly widely dispersed, this usually results in relative transparency and whiteness, often producing a...
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Martin County County Construction Services
Martin County Service Area Hobe Sound, Hutchinson Island, Indiantown, Jensen Beach, Jupiter Island, North River Shores, Ocean Breeze, Palm City, Port Mayaca, Port Salerno, Rio, Sewall’s Point, Stuart...
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Lee County Construction Services
Lee County Service Area Alva, Babcock Ranch, Boca Grande, Bokeelia, Bonita Springs, Buckingham, Burnt Store Marina, Cape Coral, Captiva, Charleston Park, Cypress Lake, East Dunbar, Estero, Fort Myers,...
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