Members of the Charles County Board of County Commissioners and the Charles County Resilience Authority joined officials from the University of Maryland, the City of Annapolis, and Anne Arundel County to celebrate the launch of the Maryland HydroNet. This project, initiated by the University of Maryland’s Climate Resilience Network, aims to monitor sea levels and combat the effects of climate change through real-time data collection.
Currently, Maryland HydroNet consists of six sensors strategically placed in different locations. Four sensors are located in Downtown Annapolis in Anne Arundel County, while two are positioned in Charles County at the Nanjemoy Environmental Education Center and Southern Park in Newburg. The installation of these initial sensors took place between April and May of this year, with plans for additional sites across the state.

Commissioner President Reuben B. Collins II, Esq., highlighted the significance of the initiative in his remarks, stating, “The University of Maryland’s Climate Resilience Network and our partnership in this Network is rooted in recognizing that no one should be left behind. This is one of many reasons our local government is actively working with the University of Maryland and others to establish a network of sea-level monitoring sensors around the state.”
The sensors, developed by Hohonu—a public-private company originating from the University of Hawai’i—measure water levels by the second. They provide readings and trends over periods ranging from one day to three months. These data are accessible online at no cost, offering invaluable information for local communities and officials.
“We’re really trying to increase identification throughout the region to give you live data where you need it most,” explained Brian Glazer, CEO of Hohonu.
The real-time data collected by these sensors are crucial for local leaders to better predict and manage flooding risks. This proactive approach aims to mitigate the impact of climate change on vulnerable areas.
“We are trying to do something about it by coming together as a team,” said Darryll J. Pines, University of Maryland President. “When all of these groups work together: Academia, non-profits, and government, we can make sure that folks in Annapolis and everywhere are able to lead stable and productive lives of dignity with pride and hope for the future.”
The event saw participation from various officials, including Commissioner Vice President Ralph E. Patterson II and Jennifer Ellin, Acting Deputy Administrator and a member of the Resilience Authority of Charles County’s Board of Directors. Anne Arundel County Executive Steuart Pittman and Annapolis Mayor Gavin Buckley also attended, emphasizing the significance of this collaborative effort.
The Maryland HydroNet project represents a significant step towards addressing climate change impacts on local communities. By leveraging the power of real-time data and collaborative efforts, the project aims to enhance resilience and ensure the well-being of residents across the state.
