The Office of Naval Research (ONR) is seeking input on a planned Task Force Ocean (TFO) Department Research Initiative (DRI) that is expected to run from FY21-FY24. Research funded under this effort will result in new sensing, modeling and prediction techniques that will enhance our scientific understanding of a complex but coupled environment. The primary focus of the TFO DRI will be focused on a specific 100 km x 100 km area of the ocean that will be closely studied and extremely well characterized, particularly during periodic at sea measurement epochs.