Extended-range RiverSonde operation on the Hudson River

A RiverSonde was operated during June-August 2010 along the Hudson River in New Jersey at a location about 140 m from the water's edge with the antenna about 40 m above the water level. With this configuration, usable signals were obtained all the way across the river, out to a range of 1400 m from the radar. This was considerably greater than the 300 m which had been observed in previous experiments. Initial data processing shows that the along-channel velocity had the expected tidal signature with a maximum value of approximately 1 m/s and was nearly in phase with the stage measured about 5 km downstream at a NOAA gaging station.