10.7282/T3H70HT4 Ocean Observatories Initiative Pioneer (Upstream Offshore). CP02PMUO, Coastal Profiler Mooring Ocean Observatories Initiative 2013 Platform assembly containing data collection instruments/sensors on the Pioneer Array, a network of platforms and sensors operating on the continental shelf and slope south of New England in the Atlantic Ocean.The Pioneer Upstream Inshore Profiler Mooring is located on the inner Continental Shelf (approximately 90 m deep), east (i.e., upstream) of the other Moorings. The Continental Shelf-Slope area off the New England coast is a highly productive area and one that is located at a dynamic intersection where ocean currents meet in weather-like “fronts,” and where nutrients, pollutants, and other properties are exchanged between the coast and the deep ocean. Data from the inner shelf area help to examine exchanges between the shelf and slope and the shelf ecosystem, as well as provide broader insight into the issues of air-sea gas exchange, including Carbon Dioxide.Like other Coastal Profiler Moorings, the Pioneer Upstream Inshore Profiler Mooring contains a Wire-Following Profiler that houses instruments. The Wire-Following Profiler moves through the water column along the mooring riser, continuously sampling ocean characteristics over a specified depth interval (15 meters below sea surface to 3 m above the bottom).