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Vertical rate of change of temperature in atmosphere
The lapse rate is the rate at which an atmospheric variable, normally temperature in Earth's atmosphere, falls with altitude. Lapse rate arises from the
Lapse_rate
Lowest layer of Earth's atmosphere
with increased altitude, and the rate of decrease in air temperature is measured with the environmental lapse rate ( − d T / d z {\displaystyle -dT/dz}
Troposphere
Topics referred to by the same term
wills Lapse rate, the rate that atmospheric pressure decreases with altitude Doctrine of lapse, an annexationist policy in British India The Lapse, a defunct
Lapse
Atmospheric heat retention
temperature decreases (or "lapses") with increasing altitude. The rate at which temperature changes with altitude is called the lapse rate. On Earth, the air
Greenhouse_effect
Feedback related to climate change
in the warming projections under climate change scenarios. The lapse rate is the rate at which an atmospheric variable, normally temperature in Earth's
Climate_change_feedbacks
Typical weather for regions above the tree line
the lapse rate from the dry adiabatic lapse rate to the moist adiabatic lapse rate (5.5 °C per kilometre or 3 °F per 1000 feet). The actual lapse rate, called
Alpine_climate
Large natural elevation of the Earth's surface
lapse rate from the dry adiabatic lapse rate to the moist adiabatic lapse rate (5.5 °C per kilometre or 3 °F (1.7 °C) per 1000 feet) The actual lapse
Mountain
Filming technique
Time-lapse photography is a technique that causes the time of videos to appear to be moving faster than normal and thus lapsing. To achieve the effect
Time-lapse_photography
Atmospheric model
the temperature remains constant. a lapse rate given per kilometer of geopotential altitude (A positive lapse rate (λ > 0) means temperature decreases
International Standard Atmosphere
International_Standard_Atmosphere
Static pressure exerted by the weight of the Earth's atmosphere
005 inHg). The discrepancy is due to a problematic assumption (a standard lapse rate) associated with normalizing measurements of pressure at high elevations
Atmospheric_pressure
Equation to derive time of sunset and sunrise
light rays follow a circular path, which is approximately true when the lapse rate is constant. For a typical value of k of 0.17, this gives ψ = 1.75 ′ height
Sunrise_equation
Boundary between troposphere and stratosphere
defined as the lowest level at which the lapse rate decreases to 2°C/km or less, provided that the average lapse-rate, between that level and all other higher
Tropopause
Condition where the Earth's atmosphere is generally considered to be unstable
instability. This lapse rate is known as the dry adiabatic lapse rate. When the environmental lapse rate is less than the adiabatic lapse rate, an air parcel
Atmospheric_instability
Height in relation to a specified reference point
and releases heat, which changes the lapse rate from the dry adiabatic lapse rate to the moist adiabatic lapse rate (5.5 °C per kilometer or 3 °F [1.7 °C]
Altitude
Ability of an air mass to resist vertical motion
adiabatic lapse rate of an air mass and the ambient lapse rate in the atmosphere. If the adiabatic lapse rate is lower than the ambient lapse rate, an air
Convective_instability
Supplementary feature of clouds
warm more slowly (at the moist adiabatic lapse rate) than the sub-cloud, dry air (at the dry adiabatic lapse rate). Because of the differential warming,
Mammatus_cloud
System of reference atitude-pressure
long term monthly mean, the temperature lapse rate is according to ISA and the relative humidity lapse rate is zero. QFF is the location value plotted
QFF
Type of temperature measurement
the wet-bulb temperature, it were brought at the saturated adiabatic lapse rate to the standard pressure of 1,000 mbar. This temperature is conservative
Wet-bulb potential temperature
Wet-bulb_potential_temperature
Height of a geographic location above a fixed reference point
digital elevation model for the world Hypsometric tints Lapse rate, or the adiabatic lapse rate List of highest mountains on Earth List of the highest
Elevation
parcel increases in temperature as it decreases in volume. adiabatic lapse rate The rate at which a parcel of air changes temperature adiabatically as it
Glossary_of_meteorology
Airbreathing jet engine designed to provide thrust by driving a fan
mean jet outlet velocity, which in turn translates into a high thrust lapse rate (i.e. decreasing thrust with increasing flight speed). See technical discussion
Turbofan
1987 studio album by Pink Floyd
A Momentary Lapse of Reason is the thirteenth studio album by the English rock band Pink Floyd, released in the UK on 7 September 1987 by EMI and the
A_Momentary_Lapse_of_Reason
Gradient whose components are spatial derivatives
Temperature gradient Geothermal gradient Sound speed gradient Wind gradient Lapse rate Grade (slope) Image gradient Time derivative Material derivative Structure
Spatial_gradient
Cloud species
off very slowly or not at all with altitude; that is, the environmental lapse rate is small or negative. Cumulus humilis clouds often have little variance
Cumulus_humilis_cloud
Short-term state of the atmosphere
surface temperature and radiational heating, which produces the adiabatic lapse rate. In some situations, the temperature actually increases with height. This
Weather
Measure of instability in the air as a buoyancy force
parcel is assumed to initially rise and cool at the dry adiabatic lapse rate: the rate at which air cools as it expands without any release of latent heat
Convective available potential energy
Convective_available_potential_energy
Biome found at high altitudes
characteristic is described by the lapse rate of air: air tends to get colder as it rises, since it expands. The dry adiabatic lapse rate is 10 °C per km (5.5 °F
Alpine_tundra
Type of middle-altitude cloud
with a fairly consistent lapse rate of 5 to 7 °C per kilometer (14 to 20 °F per mile) inside the cloud. The lapse rate is the rate at which the temperature
Altostratus_cloud
Atmospheric lapse rate measurement system
acoustic sounding system (RASS) is a system for measuring the atmospheric lapse rate using backscattering of radio waves from an acoustic wave front to measure
Radio acoustic sounding system
Radio_acoustic_sounding_system
Experiment to determine the shape of the Earth
completely flat surface. If the lapse rate were higher than this (temperature increasing with height at a greater rate), all optical observations would
Bedford_Level_experiment
Water temperature close to the ocean's surface
as a certain lapse rate is required to force the atmosphere to be unstable enough for convection. In a moist atmosphere, this lapse rate is 6.5 °C/km
Sea_surface_temperature
Strong surface-level winds that radiate from a single point
parcels. This term is associated with storms having high precipitation rates. Comparing the effects of water loading to those associated with buoyancy
Downburst
Height at which an air parcel becomes saturated
temperature (T) and pressure of the air parcel and follow the dry adiabatic lapse rate line upward (provided that the RH in the air parcel is less than 100%
Lifting_condensation_level
Measurement related to thunderstorms
Service, the index harnesses measurements such as "vertical temperature lapse rate, moisture content of the lower atmosphere, and the vertical extent of
K-index_(meteorology)
Development and strengthening of a tropical cyclone in the atmosphere
as a certain lapse rate is required to force the atmosphere to be unstable enough for convection. In a moist atmosphere, this lapse rate is 6.5 °C/km
Tropical_cyclogenesis
Atmospheric phenomenon
convection is that the environmental lapse rate (the rate of decrease of temperature with height) is steeper than the lapse rate experienced by a rising parcel
Atmospheric_convection
Static atmospheric model
height above MSL Static pressure Standard temperature (K) Temperature lapse rate (m) (ft) (Pa) (inHg) (K/m) (K/ft) 0 0 0 101325 29.92126 288.15 −0.0065
U.S._Standard_Atmosphere
Formula for radiative heat transfer
of the greenhouse effect and demonstrates that it requires a non-zero lapse rate. Rising air in the atmosphere expands and cools as the pressure on it
Schwarzschild's equation for radiative transfer
Schwarzschild's_equation_for_radiative_transfer
Formula used to model how air pressure varies with altitude
temperature gradient (K/m), e.g. -6.5 K/km at sea level (this is the lapse rate with the opposite sign convention); H {\displaystyle H} = geopotential
Barometric_formula
Diagram showing the thermodynamic states of a material
representing the dewpoint of a rising parcel The lapse rate, dry adiabatic lapse rate (DALR) and moist adiabatic lapse rate (MALR), are obtained. With the help of
Thermodynamic_diagrams
Geographic area containing several geologically related mountains
descends on the leeward side, it warms again (following the adiabatic lapse rate) and is drier, having been stripped of much of its moisture. Often, a
Mountain_range
Dangers of cloud formations to aircraft
dz}\right|} , where the former is the cooling rate of the parcel and the latter is the ambient lapse rate. In these conditions, the rising parcel may eventually
Cumulonimbus_and_aviation
Type of altocumulus cloud
clouds are evidence of mid-atmospheric instability and a high mid-altitude lapse rate. They may be a harbinger of heavy showers and thunderstorms and, if surface-based
Altocumulus_castellanus_cloud
Quantity in atmospheric thermodynamics
changes with height at the moist adiabatic lapse rate, which is smaller than the dry adiabatic lapse rate). Such a saturated parcel of air can achieve
Equivalent potential temperature
Equivalent_potential_temperature
Variation in pressure as a function of elevation
temperature variation will easily be within the single-digits. (See also lapse rate.) An alternative derivation, shown by the Portland State Aerospace Society
Vertical_pressure_variation
Measure of individuals moving out of a group
special", it can lead to a higher churn rate and subscriber abuse, as some subscribers will sign on, let the service lapse, then sign on again to take continuous
Churn_rate
Cyclone with an associated cold pool of air at high altitude
as a certain lapse rate is required to force the atmosphere to be unstable enough for convection. In a moist atmosphere, this lapse rate is 6.5 °C/km
Cold-core_low
Turbulent movement of transparent air masses
Soc.,59, 613–628. Baughman, E. E., Jr., 1946: Turbulence with a stable lapse rate. Bull. Amer. Meteor. Soc.,27, 459–462. "Aircraft turbulence is worsening
Clear-air_turbulence
Number of frames rendered in one second
video terms High frame rate Interpolation List of motion picture film formats Micro stuttering MIL-STD-188 Movie projector Time-lapse photography Video compression
Frame_rate
Dry downslope wind in the lee of mountains
slopes (see orographic lift). As a consequence of the different adiabatic lapse rates of moist and dry air, the air on the leeward slopes becomes warmer than
Foehn_wind
Genus of clouds, low-level cloud
begins to rise. As the air rises, the temperature drops (following the lapse rate), causing the relative humidity (RH) to rise. If convection reaches a
Cumulus_cloud
temperatures for any Brazilian city Climate of Brazil Morro da Igreja Lapse rate - the rate of decrease of temperature with altitude Com neve, São Joaquim/SC
Snow_in_Brazil
Type of cloud
lift a layer of air off the ground and it depressurizes, following the lapse rate. This causes the humidity to increase due to the adiabatic cooling. This
Stratus_cloud
the LFC is to lift a parcel from a lower level along the dry adiabatic lapse rate until it crosses the saturated mixing ratio line of the parcel: this is
Level_of_free_convection
Form of precipitation consisting of rain and melting snow
230–460 m (750–1,500 ft) and depends on the mass of the flakes and the lapse rate of the melting layer. Rain and snow typically mix when the melting layer
Rain_and_snow_mixed
Climate effect
in local polar amplification, although recent work has shown that the lapse rate feedback is likely equally important to the ice-albedo feedback for Arctic
Polar_amplification
French meteorologist
the region in the atmosphere around 8-17 kilometers of height where the lapse rate reaches zero, known today as the tropopause. He was the son of an engineer
Léon_Teisserenc_de_Bort
Third planet from the Sun
stratosphere, mesosphere, and thermosphere. Each layer has a different lapse rate, defining the rate of change in temperature with height. Within the stratosphere
Earth
reduces with altitude, and so the lapse rate decreases during the course of the day. This effect means the lapse rate during the day on Mount Kenya is
Climate_of_Mount_Kenya
emagram is one of four thermodynamic diagrams used to display temperature lapse rate and moisture content profiles in the atmosphere. The emagram has axes
Emagram
Atmospheric stationary oscillations
this is called a rotor. The strongest lee waves are produced when the lapse rate shows a stable layer above the obstruction, with an unstable layer above
Lee_Waves
Gas layer surrounding Earth
Because the general pattern of the temperature/altitude profile, or lapse rate, is constant and measurable by means of instrumented balloon soundings
Atmosphere_of_Earth
Mass per unit volume of the Earth's atmosphere
gravitational acceleration, 9.80665 m/s2 L {\displaystyle L} , temperature lapse rate, 0.0065 K/m R {\displaystyle R} , ideal (universal) gas constant, 8.31446 J/(mol·K)
Density_of_air
Reference values for temperature and pressure
kilograms per cubic meter (0.07647 lb/cu ft). It also specifies a temperature lapse rate of −6.5 °C (−11.7 °F) per km (approximately −2 °C (−3.6 °F) per 1,000 ft)
Standard temperature and pressure
Standard_temperature_and_pressure
Type of rainforest
ranges, and as the air is forced upward it cools at the dry adiabatic lapse rate until it reaches the dew point, at which point water vapor condenses into
Cloud_forest
Deviation from the normal change of an atmospheric property with altitude
results in a lower temperature, following the ideal gas law and adiabatic lapse rate. Under the right conditions, the normal vertical temperature gradient
Inversion_(meteorology)
Physical quantity that expresses hot and cold in the atmosphere
temperature Freezing air temperature Instrumental temperature record Lapse rate Outside air temperature, in aviation Room temperature Total air temperature
Atmospheric_temperature
Ghost town in the San Juan Mountains of Colorado
monthly normals for Alta, Colorado, estimated by applying a standard lapse rate (−3.6 °F per 1,000 ft) to NOAA/NCEI 2000–2025 normals for the nearest
Alta,_Colorado
Star at the centre of the Solar System
core. This temperature gradient is less than the value of the adiabatic lapse rate and hence cannot drive convection, which explains why the transfer of
Sun
Topics referred to by the same term
instrumentation balloons. Rate of climb Lapse rate This disambiguation page lists articles associated with the title Ascent rate. If an internal link incorrectly
Ascent_rate
2019 short film by John Boswell
combination of a hyper-lapse, time-lapse, and regular shots—of the universe from 2019 to the end of time, with the lapse rate doubling every five seconds
Timelapse_of_the_Future
Temperature difference per unit of length
temperature for gradient of Earth's atmosphere Geothermal gradient Gradient Lapse rate Weak temperature gradient approximation Edward N. Lorenz (1967). The Nature
Temperature_gradient
Weather phenomenon
lapse rates and a suitable moisture level allow for thicker, taller lake-effect precipitation clouds and naturally a much greater precipitation rate.
Lake-effect_snow
Amount of air seen through in astronomical observations
sea-level temperature and α {\displaystyle \alpha } is the temperature lapse rate. The density as a function of elevation is ρ = ρ 0 ( 1 − α T 0 y ) 1 /
Air_mass_(astronomy)
Mountain range in Asia
"Spatio-temporal variation of land surface temperature and temperature lapse rate over mountainous Kashmir Himalaya". Journal of Mountain Science. 15 (3):
Himalayas
Cyclonic storm with tropical and extratropical characteristics
level and the sea surface temperatures initially exceed the dry adiabatic lapse rate, which causes an initial round of thunderstorms to form at a distance
Subtropical_cyclone
Speed of sound wave through elastic medium
of 4 m/(s · km) can produce refraction equal to a typical temperature lapse rate of 7.5 °C/km. Higher values of wind gradient will refract sound downward
Speed_of_sound
American mountain range along North Carolina/Tennessee state line
difference between high temperatures is similar to the moist adiabatic lapse rate (3.3 degrees Fahrenheit per 1,000 ft | 6 °C/km), while the smaller difference
Great_Smoky_Mountains
Form of cumulus cloud
clouds. Atmospheric convection Cumulus humilis Cumulus congestus Thermal Lapse rate "L2 Clouds: Cumulus (Cu) of moderate/strong development". National Weather
Cumulus_mediocris_cloud
2011 EF5 tornado in Joplin, Missouri, US
centered over western South Dakota. This feature, in addition to steep lapse rates and dewpoints above 60 °F (16 °C), was conducive to the supercell development
Joplin_tornado
Atmospheric altitude at which condensation occurs
a mass of air to that height can be found by using the Dry Adiabatic Lapse Rate (DALR) to determine the potential temperature. In the early morning, this
Convective_condensation_level
Any period of time during an aircraft's flight when its altitude decreases
flight rules), to see something lower, to enter warmer air (see adiabatic lapse rate), or to take advantage of wind direction of a different altitude, particularly
Descent_(aeronautics)
Sudden increase in atmospheric temperature
pressure increases. The descending air parcel warms at the dry adiabatic lapse rate of approximately 10 °C per 1000 meters (5.4 °F per 1000 feet) of descent
Heat_burst
Position along a vertical direction above or below a given vertical datum
(hydrology) Isostasy Mean sea level Geoid Sea surface height Temperature lapse rate Terrain Digital terrain model Topographic prominence Vertical displacement
Vertical_position
Layer of gases surrounding an astronomical body held by gravity
total atmospheric mass. Temperature varies by altitude according to the lapse rate, as thermal energy from the ground is transported upward via convection
Atmosphere
April 2026 United States tornado outbreak sequence
across northern Oklahoma, characterized by rich low-level moisture, steep lapse rates, and strong vertical wind shear conducive to supercell thunderstorm development
Tornado outbreak sequence of April 23–28, 2026
Tornado_outbreak_sequence_of_April_23–28,_2026
Major mountain range in Central Europe
regions of the atmosphere causes the temperature to decrease (see adiabatic lapse rate). The effect of mountain chains on prevailing winds is to carry warm air
Alps
Thermodynamic process in which no mass or heat is exchanged with surroundings
on a large difference in time scales of the process of interest and the rate of heat dissipation across a system boundary, and thus are approximated by
Adiabatic_process
Catholic fraternal service organization founded in 1882
been paid. Additionally, the insurance program has a low 3.5 percent lapse rate of the 1.9 million members and their families who are insured. Its insurance
Knights_of_Columbus
Process of ice crystal growth in clouds
dropping rapidly, depending on the slope of the saturation curve, the lapse rate, and the speed of the updraft; or if the drop of p {\displaystyle p} is
Wegener–Bergeron–Findeisen process
Wegener–Bergeron–Findeisen_process
Drying-up of the Mediterranean Sea 5.96–5.33 million years ago
been extremely high. As a first approximation, using the dry adiabatic lapse rate of around 10 °C (18 °F) per kilometre, the maximum possible temperature
Messinian_salinity_crisis
Himalayas, the rate at which an air mass's temperature falls per kilometre (3,281 ft) of altitude gained (the dry adiabatic lapse rate) is 9.8 °C/km.
Climate_of_India
Index of lists with the same name
adiabatic expansion to diminish the vehicle's forward momentum. Adiabatic lapse rate, the change in air temperature with changing height, resulting from pressure
List_of_adiabatic_concepts
Thunderstorm during which there is snowfall
shortwave aloft passes over a body of water. This steepens the thermal lapse rates between the lake temperature and the temperatures aloft. A difference
Thundersnow
Environmental effects on physiology and mental health
pressure are cumulative. The temperature of the atmosphere decreases by a lapse rate, mostly caused by convection and the adiabatic expansion of air with decreasing
Effects of high altitude on humans
Effects_of_high_altitude_on_humans
Gas layer surrounding Jupiter
230 °C, over 90 + 50 = 140 km. The adiabatic lapse rate on Earth is around 9.8 °C/km. The adiabatic lapse rate is proportional to the average molecular weight
Atmosphere_of_Jupiter
Temperature difference measure of the stability of the atmosphere
Atmospheric convection Atmospheric thermodynamics Convective instability Lapse rate Blanchard, David O. (1998-09-01). "Assessing the Vertical Distribution
Lifted_index
2012 EF4 tornado in Northern Kentucky, US
CAPE (MLCAPE) values of 1000-2000 J kg⁻¹, continued advection of steep lapse rates into the mid-lower Mississippi Valley region, extreme shear and thermodynamic
2012_Crittenden_tornado
Meteorological concept
fluxes. The main difference to the pure radiative equilibrium is that the lapse rate in the troposphere is adjusted to a more realistic one. In climate models
Radiative-convective equilibrium
Radiative-convective_equilibrium
Deadly tornado in Illinois
above) to occur. This warmer air aloft can describe either (or both) weak lapse rates, thus weak instability or a capping inversion. The atmosphere on August
1990_Plainfield_tornado
LAPSE RATE
LAPSE RATE
Surname or Lastname
English (Kent)
English (Kent) : from Middle English apse ‘aspen tree’ (Old English æpse). See also Asp. Generally, this was a topographic name for someone who lived by an aspen or a habitational name from a place named with this word, as for example Apps in Surrey, Apse on the Isle of Wight, or Asps in Warwickshire. Occasionally it may have been applied as a nickname for a timorous person, with reference to the trembling leaves.Dutch : variant of Epps.
Boy/Male
American, Anglo, Australian, British, Chinese, Christian, English, Latin
Unity; First-rate; Number One
Boy/Male
Hindu, Indian, Jain, Kannada, Modern
Lord of Truth
Surname or Lastname
North German variant of Laas 2.Jewish (Ashkenazic)
North German variant of Laas 2.Jewish (Ashkenazic) : unexplained.English : nickname from Middle English lesse, lasse ‘smaller’ (from Old English lǣssa ‘less’), perhaps also used in the sense ‘younger’.
Boy/Male
American, Australian, British, Christian, English, German
Of High Quality; Pure; Genuine; First-rate
Biblical
the shadow or noise of him that licks or laps
Surname or Lastname
German and Dutch
German and Dutch : occupational name from an agent derivative of Middle High German lappe ‘rag’, ‘cloth’, apparently denoting a cobbler.German : habitational name for someone from Lepp.English : nickname for a person with leprosy, Middle English lepre ‘leper’.
Boy/Male
Hindu, Indian, Malayalam, Marathi, Tamil
Gem
Girl/Female
Biblical
The shadow or noise of him that licks or laps.
Male
Scandinavian
Pet form of Scandinavian Lars, LASSE means "laurel."
Surname or Lastname
English
English : variant spelling of Shear 1.Indian (Maharashtra); pronounced as two syllables : Hindu (Vani) name, probably from Marathi šera ‘rate’.
Boy/Male
American, Australian, British, Chinese, Christian, English, French, German
Of High Quality; Pure; Genuine; First-rate
Boy/Male
Arabic
Arranger
Boy/Male
Greek
People's victory.
Boy/Male
Danish, Finnish, German, Greek, Swedish
People's Victory; Laurel; Bay; Man from Laurentum
LAPSE RATE
LAPSE RATE
Girl/Female
Hindu, Indian
Creeper; Heart of Lotus
Girl/Female
Tamil
A garland of types of flowers
Boy/Male
Bengali, Hindu, Indian
Sacred Ashes
Male
Scandinavian
Scandinavian form of Old Norse Ãrni, ARNE means "eagle."Â Compare with another form of Arne.
Boy/Male
Indian
Ethical heart, Moral soul
Male
Spanish
Spanish form of biblical Melchior, MELCHOR means "king of light."
Boy/Male
Tamil
Basic, Foundation
Boy/Male
Tamil
Lord Ganesh
Boy/Male
Gujarati, Hindu, Indian
King of Mountains; Brave King
Girl/Female
Arabic American Biblical Hebrew
Little dove. In the bible one of Job's three daughters known as the most beautiful women of their...
LAPSE RATE
LAPSE RATE
LAPSE RATE
LAPSE RATE
LAPSE RATE
v. t.
To let slip; to permit to devolve on another; to allow to pass.
n.
A projecting part of a building, esp. of a church, having in the plan a polygonal or semicircular termination, and, most often, projecting from the east end. In early churches the Eastern apse was occupied by seats for the bishop and clergy.
p. pr. & vb. n.
of Elapse
v. i.
To slide or slip in moral conduct; to fail in duty; to fall from virtue; to deviate from rectitude; to commit a fault by inadvertence or mistake.
a.
Growing old; decaying with the lapse of time.
n.
The act of running down; a lapse.
imp. & p. p.
of Lapse
v. t.
To surprise in a fault or error; hence, to surprise or catch, as an offender.
p. pr. & vb. n.
of Lapse
a.
Liable to lapse.
a.
Ineffectual, void, or forfeited; as, a lapsed policy of insurance; a lapsed legacy.
n.
The lapse or interval of time between two events.
n.
Course; passage; lapse or process of time.
v. i.
To pass down by inheritance; to lapse.
v. i.
To fall or pass from one proprietor to another, or from the original destination, by the omission, negligence, or failure of some one, as a patron, a legatee, etc.
imp. & p. p.
of Elapse
n.
Liability to lapse, err, or apostatize.
v. i.
To pass slowly and smoothly downward, backward, or away; to slip downward, backward, or away; to glide; -- mostly restricted to figurative uses.
v. i.
To become ineffectual or void; to fall.
n.
Same as Apse.