- 行业: Weather
- Number of terms: 60695
- Number of blossaries: 0
- Company Profile:
The American Meteorological Society promotes the development and dissemination of information and education on the atmospheric and related oceanic and hydrologic sciences and the advancement of their professional applications. Founded in 1919, AMS has a membership of more than 14,000 professionals, ...
A vertical distance related to the intensity and molecular dissipation rate of turbulence ε.
This length scale ''l''<sub>ε</sub> has been defined as
<center>[[File:ams2001glos-De29.gif
Industry:Weather
In atmospheric electricity, a measure of the rate at which a given electrically charged object loses its charge to the surrounding air.
If the object bears a charge ''q'' at time ''t'', then according to a law established by Coulomb,
<center>[[File:ams2001glos-De28.gif
Industry:Weather
A functional relation between wavenumber and frequency for a plane harmonic wave of any kind.
That is, for a wave propagating in the ''x'' direction,
<center>[[File:ams2001glos-De25.gif
Industry:Weather
A graphic representation of the relationship of frequency to wavelength for wave motion.
The diagram is useful in determining the speed of wave motions and their dispersion characteristics. In ocean wave forecasting, it is a graph of the expression
<center>[[File:ams2001glos-De24.gif
Industry:Weather
Статистична поширення або середньому відхилення від середнього вертикальної швидкості; корисна як міра турбулентності інтенсивності або тяжкості хвиля амплітудою. Це вертикальна компонент турбулентності кінетичну енергію на одиницю маси. Він визначає швидкість вертикальній розвороту забруднюючих речовин.
Industry:Weather
The angular momentum as measured in an absolute coordinate system; hence, the vector product of the position vector of a particle into the absolute momentum of the particle.
In the atmosphere the absolute angular momentum M per unit mass of air is equal to the sum of the angular momentum relative to the earth and the angular momentum due to the rotation of the earth:
<br><center>[[File:ams2001glos-Ae1.gif
Industry:Weather
Velocity as measured in an absolute coordinate system; hence, in meteorology, the (vector) sum of the velocity of a fluid parcel relative to the earth and the velocity of the parcel due to the earth's rotation.
The east–west component is the only one affected:
<center>[[File:ams2001glos-Ae3.gif
Industry:Weather
The vorticity of a fluid particle determined with respect to an absolute coordinate system.
The absolute vorticity vector is defined by 2Ω + ∇ × u, where Ω is the earth's angular velocity vector and u is the three-dimensional relative velocity vector. 2. The vertical component η of the absolute vorticity vector (as defined above) given by the sum of the vertical component of the vorticity with respect to the earth (the relative vorticity) ζ and the vorticity of the earth (equal to the Coriolis parameter) ''f'':
<center>[[File:ams2001glos-Ae4.gif
Industry:Weather
The rate of change with time of the velocity vector of a particle.
If '''u''' is the vector velocity, the acceleration may be written as ''D'''''u'''''/Dt'', where ''D/Dt'' is the material (or total) derivative. For most purposes in hydrodynamics where Eulerian coordinates are employed, the acceleration is decomposed as follows:
<center>[[File:ams2001glos-Ae5.gif
Industry:Weather
Загальна охолодження з часу у вечірній час, коли турбулентного Тепловий потік поблизу землі виробляє чистий Тепловий потік від землі в атмосферу; використовується для вимірювання або передбачити еволюції стабільний граничного шару.
Цей період визначається як Інтеграл поверхні кінематична Тепловий потік [[File:ams2001glos-Aex01.gif
Industry:Weather
