A centerpiece within Harlem’s Morningside Park, the pond and waterfall used to be a beautiful vista and vital ecosystem for animals and humans alike. Yet in recent years, the water has transformed into a toxic green expanse due to increased outbreaks of harmful algal bloom (HABs). These outbreaks use up oxygen in the water, producing harmful toxins and gasses that pose a threat to both environmental and human wellbeing.
The repair team, led by Professor Brügger and Amos Fishman-Resheff, has focused their efforts on reversing this slimy green issue and reviving the pond’s natural ecosystem. The root cause of this transformation is the failing pump system. Extreme flooding and sewage backflow have caused the pumps to fall into disrepair. This lack of water flow, coupled with increased temperatures, has resulted in the dangerously high levels of algal bloom.
To counteract this problem, the team retro-commissioned the existing pumping system with advanced control systems capable of pump motor health monitoring. In collaboration with the Lamont Doherty Earth Observatory, the team has developed a holistic, long-term management plan that will continue to sustain the control and reduction of HABs. As well as being more efficient and resilient under a changing climate, this system will also be a cost-effective and lower maintenance resolution for the stewards of NYC Parks.
The parks in New York City are built environments that require continual maintenance and attention. Inspired by City of Water Day, Columbia University and NYC Parks joined forces in July 2023 to launch a city-wide research partnership which seeks to protect New York City’s green spaces. The partnership specifically focuses on identifying approaches for curbing harmful algae blooms and responding to the impacts of a rapidly changing climate.
The Morningside Park project will serve as an initial case study, providing vital data to inform further environmental activities. Alongside this remediation work, this partnership will also include opportunities for the community to get involved and learn more about environmentalism and climate change.
The project will culminate with a community event in July in Morningside Park to celebrate the recommissioning of the pump system and revival of the pond’s natural beauty.
