Question

Which of the following feature(s) characterize the seasonal mean flow in the upper troposphere near 200 hPa level over the Tibetan Plateau during the boreal summer?

• A. Cyclonic
• B. Anticyclonic
• C. Irr rotational
• D. Divergent

Hint:

Monsoon systems are typically characterized by anticyclonic and divergent flow patterns at the upper levels, which contribute to the development of precipitation systems below.

Answer 1

The Correct Option is B, D

During the boreal summer, the upper tropospheric flow over the Tibetan Plateau is typically characterized by: - (A) Cyclonic: This is not characteristic of the seasonal flow over the Tibetan Plateau in summer. Instead, the flow tends to be dominated by high-pressure systems.
- (B) Anticyclonic: The seasonal mean flow over the Tibetan Plateau during the boreal summer typically exhibits an anticyclonic flow, which corresponds to a region of high pressure at the upper tropospheric level. This high-pressure system is part of the monsoon circulation.
- (C) Irr rotational: The flow is generally not irrotational. It is influenced by the dynamics of the monsoon systems, which involve rotational motion.
- (D) Divergent: Divergence is a key feature of the flow pattern over the Tibetan Plateau during the summer. The divergence is associated with the upward motion of air and the development of the Asian monsoon.
Thus, the correct answers are (B) Anticyclonic and (D) Divergent.