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Catalog datasets represent a fraction of data in use by active WMA projects. The team is working on including more datasets to provide a complete view of data-in-use. Let us know how your experience is!

Datasets

Tides & Currents

Domain: Hydrology

Variables:
▶ Water levels; Tide predictions; Sea level trends; Extreme sea levels; Coastal inundation;
See 5 More Variables...

Spatial Resolution: NA

Temporal Frequency: 1 minute; 6 minutes; 30 minutes; hourly

Temporal Coverage: 1854 - Present

Spatial Extent: CONUS, Alaska, Hawaii

Source: NOAA

Update Type: Dynamic

Update Frequency: 18 minutes

Update Detail: append

Access:

Description:

NOAA’s Center for Operational Oceanographic Products and Services (CO-OPS) is the authoritative source for accurate, reliable, and timely tides, water levels, currents, and other coastal oceanographic and meteorological information. Our services support safe and efficient maritime commerce and transportation, help protect public health and safety, and promote robust, resilient coastal communities. CO-OPS maintains ocean observing infrastructure, including more than 200 permanent water level stations on the U.S. coasts and Great Lakes, an integrated system of real-time sensors concentrated in busy seaports, and temporary meters that collect observations for tidal current predictions. Through these systems, historic and real-time data are provided for the nation, forecasts, predictions, and scientific analyses that protect life, the economy, and the environment on the coast.
Coastal and estuarine currents describe the movement of water from one location to another. NOAA periodically conducts current surveys in areas around the nation to ensure the accuracy of tidal current predictions. CO-OPS also offers real-time current information as part of many of our Physical Oceanographic Real Time Systems. Commercial and recreational mariners depend on this information for safe navigation.
CO-OPS maintains the National Water Level Observation Network (NWLON), an observation network with more than 200 permanent water level stations on the coasts and Great Lakes. This system allows NOAA to provide the official tidal predictions for the nation. Accurate water level data is critical for safe and efficient marine navigation and for the protection of infrastructure along the coast. The NWLON also provides the national standards for tide and water level reference datums used for nautical charting, coastal engineering, international treaty regulation, and boundary determination. The NWLON is also widely recognized as the key federal component of the Integrated Ocean Observing System (IOOS).