In this introductory paper, we review observations and theories of the low-latitude western boundary currents in the Pacific Ocean and the Pacific-to-Indian Ocean throughflow, including the new results presented in this special section. In addition, we summarize issues and questions that remain to be addressed. In particular, we point to the need for completing the zero-order description of the mean and seasonal variation of the circulations of the region.
If you can't find a tool you're looking for, please click the link at the top of the page to "Go to old article view". Alternatively, view our Knowledge Base articles for additional help. Your feedback is important to us, so please let us know if you have comments or ideas for improvement.