Monsoon trough of the summertime Asian monsoon is in its normal orientation (oriented east-southeast to west-northwest), tropical cyclones along its periphery will move with a westward motion. If it reverses its orientation, orienting southwest to northeast, tropical cyclones will move more poleward. Tropical cyclone tracks with S-shapes tend to be associated with reverse-oriented monsoon troughs. The South Pacific convergence zone and South American convergence zones are generally reverse oriented. The failure of the monsoon trough, or the ITCZ, to move south of the equator in the eastern Pacific Ocean and Atlantic Ocean during the southern hemisphere summer, is considered one of the
Nankai Trough gas hydrate site The Nankai Trough, as a continuous gas hydrate research site for over more than a decade, is the first fully integrated field study and modern production test well project for offshore natural gas hydrates in the northwest Pacific Ocean. Six wells were successfully drilled to test natural gas hydrate accumulations off the southeastern coast of Japan, and to explore a conventional Tertiary structure. It gave scientists the opportunity to monitor the physical response of gas hydrate deposits and investigate marine gas hydrates in one of the most active earthquake zones on the planet. Research within the Nankai Trough is expected