Which of the following statements is / are true about the role of Sub - Tropical Jet Stream (STJ) in Indian Monsoon mechanism ?
(1) Sub - Tropical Jet Stream is a narrow band of fast moving air flowing from East to West
(2) Sub - Tropical Jet Stream in northern hemisphere flows between 25º to 35º N in the upper troposphere at a height of about 12 - 14 km
(3) The burst of monsoon depends upon the upper air circulation which is dominated by Sub - Tropical Jet Stream
1
(1) and (2) only
2
(2) and (3) only
3
(1) and (3) only
4
(1), (2) and (3)