Discussion
A nocturnal inversion extends to \( 150 \) m and a plume sits at \( 220 \) m. As morning heating raises the mixing height past the plume, the material is mixed into a layer of
Answer: C
Correct answer: 220 m depth
Once the growing mixed layer reaches the plume, the plume material is distributed through the whole depth of that layer - from the ground up to the mixing height, which has just passed \( 220 \) m. The layer available for dilution is therefore \( 220 \) m deep.
This is the fumigation geometry: material that spent the night confined in a thin stable ribbon aloft is suddenly mixed down through a couple of hundred metres to the surface, giving a brief but severe ground level episode. The \( 150 \) m inversion top is where the mixed layer started, not where it now ends, and \( 70 \) m is merely the difference between the two.
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development