Triple Point

Triple point also may refer to a point on the gust front of a supercell, where the warm moist inflow, the rain-cooled outflow from the forward flank downdraft, and the rear flank downdraft all intersect; ...

TRIPLE POINT- The intersection point between two boundaries (dry line, outflow boundary, cold front, etc.), often a focus for thunderstorm development.

Triple Point The point at which any three atmospheric boundaries meet. It is most often used to refer to the point of occlusion of an extratropical cyclone where the cold, warm, and occluded fronts meet. Cyclogenesis may occur at a triple point.

TRIPLE POINT - An interaction between several boundaries such as fronts with each other. For example, a sea breeze front can be in place as an outflow boundary crosses it from a perpendicular direction.

T1480 Triple point Triple state The thermodynamic state at which three phases of a substance exist in equilibrium. A junction point within the tropics of three distinct air masses at which cyclogenesis may occur. T1490 Triple state (T1480) ...

see triple point).Outflow ChannelIn hydrologic terms, a natural stream channel which transports reservoir releases.

Triple Point: Point of occlusion where the occluded, cold and warm fronts come together. Tropical Air: Air which froms over the tropics. Tropical Air Mass: A larger body of air which froms over the tropics that is warm and humid.

16 of the temperature of the triple point of water (the point at which water, ice and water vapor exist in equilibrium).

KELVIN TEMPERATURE SCALE: An absolute temperature scale based upon the triple point of pure water defined as 273.16° K. The size of the degree is the same as on the Celsius scale, and the zero point is absolute zero.

Kelvin (Unit of Thermodynamic Temperature) Unit of absolute temperature equal to 1/273.16 of the absolute triple point of water. Symbol: K. Knot Unit of speed equal to one nautical mile per hour (1.852 km/h).

New thunderstorms often develop along outflow boundaries, especially near the point of intersection with another boundary (cold front, dry line, another outflow boundary, etc.; see triple point). Outflow Channel ...

may travel hundreds of miles from their area of origin. New thunderstorms often develop along outflow boundaries, especially near the point of intersection with another boundary (cold front, dry line, another outflow boundary, etc.; see triple point).

01°C, the triple point.) On the other hand, ice does not invariably form in liquid water cooled below this temperature; it has a tendency to supercool, more so in the absence of ice nuclei. See Bernal-Fowler rules, ice crystal.

TRIPLE POINT The intersection between two atmospheric boundaries, such as a gust front and an outflow boundary, and often a focal point for thunderstorm development.

16 of the thermodynamic temperature of the triple point of water. The unit itself was renamed "the kelvin" in place of "degree Kelvin" and designated "K" in place of "°K".

See also: Temperature, Pressure, Water, Weather, Air