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St. Johns County Beachfront Data Collection Facility
Guana Tolomato Matanzas National Estuarine Research Reserve (GTM-NERR)
Sunrise

Welcome to the St. Johns County Beachfront Data Collection Facility (BDCF), located on a pristine section of Florida’s Atlantic shoreline in the Guana Tolomato Matanzas National Estuarine Research Reserve (GTM-NERR). The facility utilizes state-of-the-art instruments that constantly record the ever-changing waves, winds, ocean water levels, and currents, and reports the processed results on an hourly basis on this website.

Creation of the BDCF was a collaborative effort, with financial and in-kind support from St. Johns County, the GTM-NERR, the National Oceanic and Atmospheric Administration (NOAA), and Surfbreak Engineering Sciences, Inc. (SES). An alliance comprised of SES and its subcontractors (Giztronics, LLC and the Semaphore Group, Inc.) and the University of North Florida provided the technical expertise, field experience, and labor required to design, fabricate, and install this unique facility. Real-time data collection from all instruments was initiated on November 16, 2021. Operation and maintenance of the BDCF are performed by SES, its subcontractors, and support from GTM-NERR staff, with funding provided by St. Johns County and the Florida Department of Environmental Protection (FDEP).

The data reported and the plots provided on this site have not been subjected to any Quality Assurance or Quality Control, possess no warranty (explicit or implied), and are provided to the public only for informational purposes.

More on the data collection facility

Location of the Beachfront Data Collection Facility in the Guana Tolomato Matanzas National Estuarine Research Reserve (GTM-NERR), St. Johns County, Florida.

Wave, Wind, and Currents - Most Recent Observations
Click on image labels to enlarge in a new tab

Wave directions: are the direction waves come from, clockwise from true north.
    The dashed blue line is the direction for waves traveling directly onshore (78.5 deg-TN).
Water Level: is relative to NAVD88 datum.
    The dashed red line is mean sea level (MSL) relative to NAVD88.
Wind directions: are the direction the wind comes from, clockwise from true north.
    The dashed orange line is the direction for North-to-South alongshore wind (from 348.5 deg-TN).
    The dashed green line is the direction for South-to-North alongshore wind (from 168.5 deg-TN).
Current directions: are the direction currents go towards, clockwise from true north.
    The dashed orange line is the direction for North-to-South alongshore currents (toward 168.5 deg-TN).
    The dashed green line is the direction for South-to-North alongshore currents (toward 348.5 deg-TN).

Missing 24hr Wave Plot
    Missing 24hr Current Plot
    Missing 7-Day Wave Plot
    Missing 7-Day Current Plot