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On Tuesday, September 27th, 2016 beginning at 7:00 a.m. EDT, there will be system maintenance performed affecting the Tides and Currents web site ( During this time, Tides and Currents will be running on the backup website with limited capability. Click here for more information.

Coast Survey Development Lab (CSDL)

CO-OPS partners with the National Ocean Service's (NOS) Coast Survey Development Lab (CSDL) to develop, evaluate, and implement real-time computer-based oceanographic Nowcast Forecast modeling systems for seaports and estuaries. CSDL develops and evaluates these systems. Once the forecast systems meet NOS standards, they are transfered to CO-OPS for operational implementation, 24/7 monitoring, and dissemination of model output. The output provides forecast guidance to the coastal coummunity in support of safe and efficient navigation and for the environmentally sound utilization, management, and protection of U.S. coastal waters.

More information about CSDL is available at

Revised: 10/15/2013
NOAA / National Ocean Service
Web site owner: Center for Operational Oceanographic Products and Services