Discussion
Which criterion does the parcel method give for stability?
Answer: A
A parcel displaced upward cools adiabatically, so it is denser than its surroundings and returns whenever the environmental potential temperature increases with height. The density criterion applies to incompressible fluids but not to the atmosphere, where the parcel changes its own density on displacement. The lapse rate criterion given is that for absolute stability of saturated ascent specifically. Framing the question as which quantity the change acts upon makes the answer follow without calculation.
No comment is present. Be the first to comment.
Loading…
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