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Estuarine & Coastal Oceanography Group

Severn River Watershed Observatory (SRWO)

 SRWO Overview

The U.S. Naval Academy (USNA) Ocean and Atmospheric Sciences Department Severn River Watershed Observatory (SRWO) (mp4) is an estuarine observation and monitoring network in the Severn River, MD. 

The system today consists of a sensing node at the USNA Ocean and Atmospheric Sciences Department's Hendirx Oceanography Laboratory.  It is equipped with two YSI EXO2 water quality monitoring sondes (1 near the surface at ~0.5 m and 1 about 0.5 m from the bottom) surface, a full meteorological sensor suite, a Sontek Argonaut SL Acoustic Doppler Current Profiler (ADCP), and a high resolution camera system.  Data is collected continuously and logged using Campbell Scientific CR1000 Measurement and Control Datalogger.  The SRWO will be expanded in the near future to include additional nodes in order to better observe the Severn River.  Data collected by the SRWO fixed nodes is augmented by data collected using buoys, profilers, autonomous and unmanned systems and other sensing platforms.  The SRWO is designed to characterize the physical, chemical, biological, acoustic, and optical properties of the littoral Severn River environment. 

The USNA Ocean and Atmospheric Sciences Department's SRWO provide the nucleus of a platform to support USNA Midshipmen and faculty in the areas of: hands-on, project-based learning; data science; basic and applied research; science & technology (S&T) development and testing; cyber-security research and exercises; science, technology, engineering, and mathematics (STEM) education, and; environmental stewardship.  The overall goal of the USNA Ocean and Atmospheric Sciences Department's SRWO is to serve to advance education and research in Littoral Oceanography and promote S&T development for conducting research in shallow, dynamic littoral environments.        


Dr. Joseph P. Smith (

Mr. Alexander R. Davies

Ms. Brianna Tracy

Mr. Ben Hickman

Water Quality (click to see data)


Currents and Waves (click to see data)


Meteorology (click to see data)



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