Any New Yorker worth their salt will recognize the frayed remains of broken umbrellas, which crowd city trashcans and litter gutters during and after a storm. With Harvest Dome, Amanda Schachter and Alexander Levi of SLO Architecture have repurposed these remains as a way to foreground the city’s accumulation of waterborne debris. Schachter and Levi worked with area teenagers and apprentice architects to gather the discarded, storm-snapped umbrellas and assemble them into a light-gauge spherical installation, which they floated in the Inwood Hill Park Inlet at Manhattan’s northernmost tip. Rising and falling with the tide, the buoyant dome called attention to the city’s waterways and watersheds and the circadian action of the water.