Continuously monitored water quality measurements from five salt marsh ponds in New Jersey, USA from Apr 2023 to Jun 2024

This dataset consists of 10-minute resolution measurements of temperature, salinity, depth, dissolved oxygen concentration, and pH collected from five salt ponds in a tidal salt marsh within the Seven Mile Island Innovation Laboratory (SMIIL), located landward of Seven Mile Island in Cape May County, New Jersey. The ponds were selected based on aerial imagery from the New Jersey Office of Geographic Information Systems (NJOGIS) and in situ physical inspection to identify ponds spanning a range of sizes (150-19,000 m2), ages (40-100+ years), and instrumentable depths (0.5-1.5 m). Data from each salt pond was collected using four Onset Computer Corp. HOBO data loggers that measured pressure, temperature, conductivity/salinity, dissolved oxygen, and pH. Each of the four sensors measured temperature, with the finalized temperature data reflecting the median of the four sensors in each pond. An additional HOBO pressure sensor was deployed in a central location recording air temperature and barometric pressure. Sensors were cleaned, calibrated, and redeployed every 4-16 weeks, and discrete dissolved oxygen and carbonate chemistry samples were collected for sensor validation at the beginning and end of each deployment (see discrete sample dataset, also in this project). This dataset presents quality controlled data from each of the five ponds across five deployments, covering a period from April 2023 to June 2024.