Dataset: Biogeochemical data collected from porewater profiles within a shallow, sandy subterranean estuary (STE) in Virginia USA, from 2018 - 2020

These data were collected during 2018-2020 from a sandy subterranean estuary (STE) located in Gloucester Point, Virginia, USA. Several campaigns were conducted to collect porewater across seasonal, tidal, and spatial scales. Porewater samples were collected from dedicated piezometers at depths ranging from 10 centimeters to 300 centimeters deep in the STE.

Porewater samples were collected using a peristaltic pump to pull water from each piezometer. Temperature, salinity, and pH were collected using a flow-through cell and a YSI. Nutrient samples were filtered with a 0.45 uM filter and kept on ice until frozen for later analysis. DIC samples were fixed using HgCl in exetainer tubes and kept under water until analysis. Sulfide samples were fixed with Zinc Acetate for later calorimetric analysis.