Introduction Jay McCreary Summer School on: Dynamics of the North Indian Ocean National Institute of Oceanography Dona Paula, Goa June 17 – July 29, 2010 Goal To provide a comprehensive introduction of ocean dynamics in the North Indian Ocean (NIO), that is, of the processes that maintain NIO circulations and cause their variability on all time scales. Topics 1) Observations 2) Ocean models (OGCMs, LCS & layer models; model hierarchy) 3) Analytic and numerical methods 4) Processes (idealized solutions) 5) Applications (realistic solutions) Course Notes 1) HIG Notes (NOTE: σ → –σ) 2) Math Notes 3) Interior-ocean Notes 4) Equatorial-ocean Notes 5) Coastal-ocean Notes Tomorrow, we begin to discuss ocean model. For the LCS model, please read HIG pp.1–17, INT Problem #2. For the 1½-layer model, please read INT Problem #1a. Thoughts (1) Only a start At the end of this course, you will have learned a lot about NIO dynamics. But, it is impossible to cover everything about the NIO in this short time. So, the talks are intended to provide introductions to various topics of NIO dynamics, which will then make it easier for you to study further. Mathematics Some mathematical techniques are needed to obtain analytical solutions. Several mathematical lectures are included to introduce the techniques that are used. Thoughts (2) Fast pace Given the time limits of the course, we will be going at a fast pace. So, please keep up with the material as best as you can. Also, please do not get discouraged, as ideas introduced earlier in the course will be reinforced later. Discussion Although these talks are called “lectures,” they are meant to be “discussions.” So, ask questions and bring up issues at any time during the presentations. Mistakes I often make mistakes, both in speaking and (likely) in the slides. Please bring any errors to our attention as soon as you notice them. Thanks (1) Satish Shetye & D. Shankar Satheesh Shenoi, M. Ravichandran, and P.N. Vinayachandran CSIR G.S. Michael S.G. Aparna Sarvesh Chandra, Ashok Nulguda, ITG, and FM R.L. Chavin Thanks (2) V. Mahalingam Nanddeep Nasnodkar, Ronnie Fernandes, Krishnakiran, Akshaya Shirwaikar, and Apeksha Phaldesai NIO colleagues from administrative staff, and D.T. Toraskar Abhisek Chatterjee & Arnab Mukherjee & The Indian Summer Monsoon