Question

What are jet streams and how they affect the climate?

Answer 1

Answer:

Jet streams are high speed air currents found in the tropopause which is the transition between troposphere and stratosphere.

1. Their speed varies from about 110 km/h in summer to about 184 km/h in winter.
2. A number of separate jet streams have been identified. The most constant are the mid latitude and subtropical jet streams.
3. Jet streams over the Indian peninsula during the summer affect the monsoon.
4. The subtropical westerly jet stream blow south of the Himalayas and is responsible for the western cyclonic disturbances experienced in the north and north western parts of the country.
5. An easterly jet stream blows over peninsular India.
6. It affects the coastal regions of the country and is responsible for tropical cyclones during the monsoon as well as during the October to November period.