Discussion
Statement I: Rossby wave phase always moves westward relative to the mean flow.
Statement II: Rossby wave energy always moves westward relative to the mean flow.
In the light of the above statements, choose the correct answer.
Answer: D
The intrinsic phase speed is always westward, but the group velocity can be eastward, which is what produces downstream development in Rossby wave trains. This distinction between phase and energy propagation has real forecasting consequences, since it means a disturbance in one region seeds development far downstream several days later, and it also means analysis errors spread faster than the systems themselves.
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