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The Government of Canada’s terminology and linguistic data bank.
GRADIENT PSEUDO-ADIABATIQUE [2 records]
Record 1 - internal organization data 2004-03-19
Record 1, English
Record 1, Subject field(s)
- Atmospheric Physics
- Thermodynamics
Record 1, Main entry term, English
- saturated adiabatic lapse rate
1, record 1, English, saturated%20adiabatic%20lapse%20rate
correct
Record 1, Abbreviations, English
- SALR 2, record 1, English, SALR
correct
Record 1, Synonyms, English
- saturation-adiabatic lapse rate 3, record 1, English, saturation%2Dadiabatic%20lapse%20rate
correct
- saturation adiabatic lapse rate 4, record 1, English, saturation%20adiabatic%20lapse%20rate
correct
- moist-adiabatic lapse rate 3, record 1, English, moist%2Dadiabatic%20lapse%20rate
correct, see observation
- moist adiabatic lapse rate 5, record 1, English, moist%20adiabatic%20lapse%20rate
correct, see observation
- wet adiabatic lapse rate 6, record 1, English, wet%20adiabatic%20lapse%20rate
correct
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
A special case of process lapse rate, defined as the rate of decrease of temperature with height of an air parcel lifted in a saturation-adiabatic process through an atmosphere in hydrostatic equilibrium. 3, record 1, English, - saturated%20adiabatic%20lapse%20rate
Record number: 1, Textual support number: 1 CONT
So, if condensation is taking place, latent heat is being released to the surrounding air. So you have two opposing trends going on at the same time within this parcel of air. It's rising and cooling, but it's also condensing and being warmed. Which one will win out? That is, will the air get colder, or will it get warmer? Well, what happens is that the air will still cool off, but not as fast. If water vapor in the air is condensing, the adiabatic rate is less. The air is only cooling off at a rate of about 5 degrees C/1000 meters (3.3 deg per 1000 feet). This is called the Saturated adiabatic lapse rate (or the wet adiabatic lapse rate, or the moist adiabatic lapse rate, depending on the textbook you are using). The saturated lapse rate varies with the original temperature of the air parcel, but 5 degrees C/1000 meters is a commonly used value. 6, record 1, English, - saturated%20adiabatic%20lapse%20rate
Record number: 1, Textual support number: 1 OBS
The pseudoadiabatic lapse rate is so close to the moist adiabatic lapse rate that meteorologists tend to ignore this difference and often refer to them synonymously. In fact, on adiabatic charts (or pseudoadiabatic charts), the moist adiabatic lapse rate lines are referred to interchangeably as moist, saturated, or pseudoadiabatic. 7, record 1, English, - saturated%20adiabatic%20lapse%20rate
Record number: 1, Textual support number: 2 OBS
Owing to the release of latent heat, this lapse rate is less than the dry-adiabatic lapse rate (...) 3, record 1, English, - saturated%20adiabatic%20lapse%20rate
Record 1, Key term(s)
- saturated-adiabatic lapse rate
- wet-adiabatic lapse rate
Record 1, French
Record 1, Domaine(s)
- Physique de l'atmosphère
- Thermodynamique
Record 1, Main entry term, French
- gradient adiabatique saturé
1, record 1, French, gradient%20adiabatique%20satur%C3%A9
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- gradient pseudo-adiabatique 2, record 1, French, gradient%20pseudo%2Dadiabatique
masculine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Gradient adiabatique de l'air saturé. 3, record 1, French, - gradient%20adiabatique%20satur%C3%A9
Record number: 1, Textual support number: 1 CONT
Le refroidissement par détente [d'une particule d'air saturé en mouvement ascendant] provoque la condensation de la vapeur d'eau et la libération de la chaleur de condensation [...] Dans ce cas, la transformation n'est plus entièrement adiabatique, et la décroissance thermique se réduit à 0,5 °C par 100 m («gradient pseudo-adiabatique»). 2, record 1, French, - gradient%20adiabatique%20satur%C3%A9
Record number: 1, Textual support number: 1 OBS
En raison de la libération de chaleur latente, sa valeur est inférieure à celle du gradient adiabatique de l'air sec. 3, record 1, French, - gradient%20adiabatique%20satur%C3%A9
Record 1, Key term(s)
- gradient adiabatique de l'air saturé
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Física de la atmósfera
- Termodinámica
Record 1, Main entry term, Spanish
- gradiente de saturación adiabático
1, record 1, Spanish, gradiente%20de%20saturaci%C3%B3n%20adiab%C3%A1tico
masculine noun
Record 1, Abbreviations, Spanish
Record 1, Synonyms, Spanish
Record 1, Textual support, Spanish
Record number: 1, Textual support number: 1 DEF
Gradiente adiabático del aire saturado. 1, record 1, Spanish, - gradiente%20de%20saturaci%C3%B3n%20adiab%C3%A1tico
Record number: 1, Textual support number: 1 OBS
Debido al desprendimiento del calor latente, su magnitud es inferior a la del gradiente adiabático del aire seco. 1, record 1, Spanish, - gradiente%20de%20saturaci%C3%B3n%20adiab%C3%A1tico
Record 2 - internal organization data 1992-12-31
Record 2, English
Record 2, Subject field(s)
- Atmospheric Physics
Record 2, Main entry term, English
- pseudo-adiabatic lapse rate
1, record 2, English, pseudo%2Dadiabatic%20lapse%20rate
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
- pseudoadiabatic lapse rate 3, record 2, English, pseudoadiabatic%20lapse%20rate
correct
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
The rate of change of temperature with height in a rising air parcel when, under the most simplified conditions, the condensate (assumed to be water) immediately precipitates out. 1, record 2, English, - pseudo%2Dadiabatic%20lapse%20rate
Record number: 2, Textual support number: 1 OBS
The pseudoadiabatic lapse rate is so close to the moist adiabatic lapse rate that meteorologists tend to ignore this difference and often refer to them synonymously. In fact, on adiabatic charts (or pseudoadiabatic charts), the moist adiabatic lapse rate lines are referred to interchangeably as moist, saturated, or pseudoadiabatic. 4, record 2, English, - pseudo%2Dadiabatic%20lapse%20rate
Record 2, Key term(s)
- pseudo adiabatic lapse rate
Record 2, French
Record 2, Domaine(s)
- Physique de l'atmosphère
Record 2, Main entry term, French
- gradient de température pseudo-adiabatique
1, record 2, French, gradient%20de%20temp%C3%A9rature%20pseudo%2Dadiabatique
correct, masculine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 DEF
Taux de variation de la température avec l'altitude dans une particule d'air ascendante quand, dans les conditions les plus simples, le condensat (de l'eau par hypothèse) tombe immédiatement sous forme de précipitation. 1, record 2, French, - gradient%20de%20temp%C3%A9rature%20pseudo%2Dadiabatique
Record 2, Key term(s)
- gradient pseudo-adiabatique
Record 2, Spanish
Record 2, Campo(s) temático(s)
- Física de la atmósfera
Record 2, Main entry term, Spanish
- gradiente de temperatura pseudoadiabática
1, record 2, Spanish, gradiente%20de%20temperatura%20pseudoadiab%C3%A1tica
masculine noun
Record 2, Abbreviations, Spanish
Record 2, Synonyms, Spanish
Record 2, Textual support, Spanish
Record number: 2, Textual support number: 1 DEF
Tasa de cambio de la temperatura con la altitud en una partícula de aire ascendente, cuando, en las condiciones más simplificadas, precipita inmediatamente el condensado (que se supone de agua). 1, record 2, Spanish, - gradiente%20de%20temperatura%20pseudoadiab%C3%A1tica
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