Question

Which of the following are types of inversion of temperature? \[ \begin{aligned} A.&\ \text{Radiation inversion} B.&\ \text{Convectional inversion} C.&\ \text{Subsidence inversion} D.&\ \text{Advection inversion} \end{aligned} \] Choose the correct answer from the options given below:

• A. A, B and C only
• B. A, C and D only
• C. B, C and D only
• D. A, B and D only

Hint:

Major types of temperature inversion: \[ \boxed{ \begin{aligned} \text{Radiation} &\rightarrow \text{Night-time Surface Cooling}, \text{Subsidence} &\rightarrow \text{Descending Air}, \text{Advection} &\rightarrow \text{Warm Air over Cold Surface}. \end{aligned} } \] Mnemonic: “RSA = Radiation, Subsidence, Advection.”

Answer 1

The Correct Option is B

Concept: Temperature inversion occurs when air temperature increases with height instead of decreasing. The major types are radiation inversion, subsidence inversion, and advection inversion. There is no standard type known as convectional inversion.

Step 1: Evaluate each statement. \[ \begin{aligned} A.&\ \text{Radiation inversion} \rightarrow \text{True}. B.&\ \text{Convectional inversion} \rightarrow \text{False (not a recognized type).} C.&\ \text{Subsidence inversion} \rightarrow \text{True}. D.&\ \text{Advection inversion} \rightarrow \text{True}. \end{aligned} \]

Step 2: Identify the correct combination. \[ \boxed{ A,\ C,\ \text{and}\ D } \] Hence, \[ \boxed{\text{(B)}} \]