SBC LTER: OCEAN: Sediment porewater ammonium and urea concentrations

This data set present the results of efforts to characterize the concentrations of ammonium and (selectively) urea in pore waters of permeable, sandy sediments on the inner continental shelf of the Santa Barbara Channel, including those adjacent to major kelp beds. Samples sites included Arroyo Burro, Mission Creek, Refugio and Mohawk. A second data file include depth profiles of ammonium and urea concentrations in the water column above each sediment sampling site, which were used to discern the strength of the vertical gradients of ammonium and urea concentrations between the surficial sediments and the water column.