Tropopause The boundary layer between the troposphere and stratosphere, where an abrupt change in temperature lapse rate usually occurs.
tropopause"The boundary between the troposphere and stratosphere, usually characterized by an abrupt change of lapse rate. The change is in the direction of increased atmospheric stability from regions below to regions above the tropopause.
tropopause
The cold region in the earth's atmosphere located about 10 km (8 mi) above the surface, at which the usual vertical temperature decrease in the troposphere ceases; by convention, ...
Tropopause: The boundary between the troposphere and stratosphere found between 8 to 20 km in altitude. The tropopause is higher over the tropics and lowest in the polar regions.
Tropopause - the upper boundary of the troposphere, usually characterized by an abrupt change in how the temperature changes with height; below the tropopause temperature generally decreases with height; ...
Tropopause - A thin boundary layer between the troposphere and the stratosphere.
Troposphere - The layer of the atmosphere from the ground to around 33,000 feet (10 kilometers). This is where much of the weather we experience occurs.
TROPOPAUSE The boundary zone or transition layer between the troposphere and the stratosphere. This is characterized by little or no increase or decrease in temperature or change in lapse rate with increasing altitude.
Tropopause: The boundary between the troposphere and the stratosphere.
Troposphere: The lowest of the four main layers of the atmosphere. Most weather occurs in the troposphere, the 10-20 km of the atmosphere envelope closest to the Earth.
Tropopause Jet
Type of jet stream found near the tropopause. Examples of this type of jet are the subtropical and polar fronts.
Troposphere ...
Tropopause Zone of transition between the troposphere below and the stratosphere above; the top of the troposphere.
Tropopause- The boundary between troposphere and the stratosphere. It is usually characterized by an abrupt change in temperature with height from positive (decreasing temperature with height) to neutral or negative (temperature constant or ...
Tropopause - the division between the troposphere and stratosphere temperature suddenly stops decreasing with height at this level.
TROPOPAUSE - The top of the troposphere denoted by a change from decreasing temperatures to increasing temperatures with height. This forms the GLOBAL TEMPERATURE INVERSION or GTI.
Scintillometer A type of photoelectric photometer used to measure high-altitude winds on the assumption that stellar scintillation is caused by atmospheric inhomogeneities being carried along by wind near the tropopause level.
Troposphere: The lowest portion of the atmosphere up to the tropopause. Varies in height from 60,000 feet at the equator to 40,000 feet over the poles.
Troposphere: The lowest portion of the atmosphere in which most weather occurs.
The tropopause marks the limit of the troposphere and the beginning of the stratosphere. The temperature above the tropopause increases slowly with height up to about 50 km.
Its altitude is somewhere between 28000 ft to 34000 ft (8.5 - 10.5 km), with its own distinctive tropopause level.
It lies between the polar tropopause at 11 km or so, and the tropical tropopause at around 18 km. In the winter, it descends to 30° latitude, but rises to 50°-60° in the summer.
Under the right conditions, severe thunderstorm tops can overshoot the EL by a considerable distance without reaching the tropopause. Conversely, non-severe thunderstorm tops can rise above the tropopause without overshooting the EL.
In general, winds are strongest just under the tropopause (except during tornados, hurricanes or other exceptional situations).
A flat, tubular current of air located in the tropopause, the area in the Earth's atmosphere located between the troposphere and the stratosphere.
The EL typically is higher than the tropopause, and is a more accurate reference for storm tops.
Eta Model - One of the operational numerical forecast models run at NCEP. The Eta is run twice daily, with forecast output out to 48 hours.
Approximately half of all of the atmospheric water vapor is found below 2-km altitude, and only a minute fraction of the total occurs above the tropopause.
Jet Stream
Flat tubular, quasi-horizontal, current of air generally near the tropopause, whose axis is along a line of maximum speed and which is characterized by great speeds and strong vertical and horizontal wind shears.
Troposphere The home of the biosphere; the lowest layer of the homosphere, containing approximately 90 percent of the total mass of the atmosphere; extends up to the tropopause, defined by a temperature of -70 degrees (F); ...
Upper Level Jet
NOAA National Weather Service - Cite This Source - This Definition
Browse Related Terms: Barrier Jet, Inflow Jets, Jet, Jet Max, Jet Streak, Jet Wind Speed Profile, STJ, Subtropical Jet, TROP, Tropopause Jet, Valley Exit Jet ...
Isothermal Layer: Any layer where the temperature is constant with altitude, such that the temperature lapse rate is zero. Specifically, the approximately isothermal region of the atmosphere immediately above the tropopause.
strong updrafts will continue to rise past the EL before stopping, resulting in storm tops that are higher than the EL. This process sometimes can be seen visually as an overshooting top or anvil dome. The EL typically is higher than the tropopause, ...
 See also: Temperature, Air, Surface, Atmosphere, Layer
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