ELR Is The Decrease In Temperature With An Increase In High.
ELR Is 6.5◦C Per 1000m. (According To Air Conditions)
It Is Vary Due To Such Factors
Height, ELR Is Lower Near the Ground-Level; (Over Continental Areas; And Between Air Masses; Albedo Moisture).
When Water Vapor Raises, The Temperature Decreases, Air Is Much Cooler And The Ground Level Is Hotter. As The More Air Rises Cooler Sinks. During The Rainy Season/Lower in Winter Water Vapor Cannot Raises There Will Be No Air And the Wind Is Cooler.
ADIABATIC LAPSE RATE:
Parcel Of Air Rises During The Day, As It Heats Up Land; The Air Is Evaporated, So Water Vapor Rises.
Decrease In Pressure – As The Hot Air Raises, Pressure Will Be Dropped.
Increasing Volume (Air) & Increases in Temperature Making It Cools.
Ground Layer Is Heated By Insolation Land, Plant Is Heated Up.
As Warm Air Rises By An Increasing Energy, They Give Out Heat, So The Warm Air Is Converted To Cool.
Ground Layer Trapped Heat, Then Evaporates, Creating Parcel Of Air And So, Pressure Force To Rise, And Goes Low As It Reach Higher Level.
ADIABATIC LAPSE RATE
When The Dry Air Is Not Saturated, the Humidity Is Low, Meaning Less Water Vapor
At 1000 M, The Temperature Decrease, The Warm Air Raising So, There Is Moisture At The Point Of Condensation. At The Point Of Condensation. As It Reaching Dew Point, The SALR Occurs.
| DALR It does not condenses DALR contains latent heat, as so the heat is not release. As the heat is not heated up, the air , day & temperature cools down at 0 DC As more energy to rise, there will be dry air. DALR is much cooler than SALR due to its less moisture. At ground-level, the air is heated up and until it reaches at 500m, it condense. | | SALR 100% RH lots of moisture has to be released. The air is saturated after it condenses. How are the air changes to SALR? As the air pass through the condensation level, the latent heat release and the temperature is dropped, so the air is cool at 3 DC, it saturated. *DC (Degree Celsius). |
DALR, As The Air Isn’t Condense, Latent Heat Is Not Release So, And The Higher The Parcel Of Air There Is Decrease In Temperature.
DALR Is Stay Unsaturated; It Force To Rise Or Warm Up At The Higher-Level, It Still Cool But, As If The Cooler Decrease To Its Lower Level It Will Be Warmer.
When The Parcel Of Air Rises, The Temperature Will Drop And The Energy Is Used Up, The Air Will Be Cooler.
As There Is No Heat To Be Release Due To Shortage Of Energy, The Air Started To Saturate. Warm Air Absorbs More Water Vapors/Moisture.
It Must Be Condensed Before Heat Release, If It Isn’t Condensed, There Will Be No Heat To Release.
DALR Decrease at the Lowest 9.8 DC.
If The Temperature Falls Below 0’c, The Air Is Cool, And As Called As Freezing Rate.
THE STATE OF STABILITY
When Rising Parcel Of Unsaturated Air Cools More Rapidly Than The Surrounding Air.
The Higher In Temperature Forcing The Parcel Of Air To Rise. The Cooler It Gets, It Will Sinks Because It Is Heavy And It Has No Saturated Air And No Condensation: Meaning No Release Of Latent Heat, The Air Is Dry, No Warm Air At Higher Altitude And So Parcel Of Air Raises As DALR Of 9.8’C Per 1000m. By The Time As The Rising Air Has Reached 1000m, It Has Cooled To 10.2’C Leaving It Cooler And Denser Than The Surrounding Air Which Has Cooled To Only 14’C.
At The Right Side, Shows The Rising Of Parcel Air Which Is Cooler. At 1000m, The Rising Air Of DALR Is Colder Than ELR (High Of 1000m, Temperature Is Low). As If There Is Nothing To Force The Parcel Of Air E.G. Mountains Or Fronts, It Will Sinks Back To Its Starting Point. This Air Is Described As Stable Air Because There Is No Condensation, But Only Shallow Flat-Top Cumulus Cloud, No Rainfall, And The Cooler Air Has To Move Back And Cooler Air Sink During Dry Sunny Weather Condition.
ELR At The Right Side, Air Goes Up In Temperature So There Is Increase In Temperature And Giving Its Cooler. ELR Is 6’C, And Does Not Sink To Much.
THE STATE OF INSTABILITY
ELR /DALR/ SALR
Green Line Shows ELR (Surrounding Area) For E.G. In Hot Summer Day 11’c Per 1000m.
DALR Is Warmer Than ELR For About 1.2’C (Warmer Air Force To Rise)
SALR At 5’C Per 1000m Had Reached Condensation Level At 15.1’C (Decrease In Temperature), The Air Is Cooler And It Release Latent Heat At 100% Of Relative Humidity.
As Dew Point Has Reached, The Cumulonimbus Cloud Is Formed At Instability Conditions.(500m Condensation Level)
Red Line Shows DALR, The Air Are Coming From The Ground, Bringing Warmer Air Reaching The Higher Latitude At 1000m, Giving It Cooler Air. DALR Is Still Rising As There Is Yet No Condensation. As The Dew Point Reached At 1000m, Temperature Started To Decrease.
ELR Always Present, When ELR Is Higher, Temperature Became Decrease.
From 20 Is Decrease To Its Final Temperature, Meaning The Air Is Become Cooler As It Temperature Decreases.
The Left Side Is Much Cooler Than The Right Side.
INSTABILITY AND STABLE CONDITION
At The Ground Level, The Temperature Is High About 20’C DALR (Warm Water Is Rising), As It Goes Up The Temperature Become Lower, DALR Is Cooler, ELR Is Unstable And No SALR Yet. Both DALR & ELR Are Cooler Especially At Higher Latitude, Where The Temperature Drops.
Since There Is Not Enough Air Moisture To Condense, No DALR, So It Is Saturated. DALR Has Moved To Right Side.
SALR Is Warmer Due To The Release Of Latent Heat. For Example In Britain. After Condensation Taking Place, There Will Be Cloudy Conditions And Heavy (Shallow)
DALR Is Cooler Than ELR (Stable Air)
Left DALR Is Constant At Right Much Cooler Than Surrounding Air And So, The Air Is Forced To Rise At Condensation Level, But There Is Still No SALR Yet, Temperature Decrease And ELR Also, It Is Cooler Than Before.
At 7.5’C, Condensation Taking Places, SALR Has Occurred. There Is A Change ELR Moved To The Left (Cooler) And SALR Is Warmer, So The Air Is Unstable.
