Fleck, J.A., Marvin-DiPasquale, M.C., Bergamaschi, B.A., Windham-Myers, L., Alpers, C.N., Hestir, E.L., Avouris, D.M., O'Donnell, K., Oros, D.M., Hansen, A., Watanabe, P.T., Sushch, D., DeParsia, E., Sturgeon, C.L., Delascagigas, A., Hansen, J.A., Burau, D.J., Agee, J.L., Kieu, L.H., Kakouros, E., and Baesman, S.M., 2023, High resolution and discrete temporal and spatial water-quality measurements in support of modeling mercury and methylmercury concentrations in surface waters of the Sacramento-San Joaquin River Delta: U.S. Geological Survey data release, https://doi.org/10.5066/P9O85MN7.
This data release is in partial fulfillment of an agreement between the U.S. Geological Survey and the University of California, Merced, related to a study funded through the California Department of Fish and Wildlife (PROPOSAL #: P1896056-01, TITLE: High Resolution Temporal and Spatial Mapping of Mercury in Surface Waters of the San Francisco Bay Delta), as part of the California Proposition 1 Water Quality, Supply, and Infrastructure Improvement Act of 2014. The overarching goal of this study was to develop models that can estimate surface-water concentrations of four mercury species (particulate and filter-passing fractions of total mercury and methylmercury) using a trio of high-resolution water-quality data collection platforms. The purpose of the files herein is to provide the full spatial datasets for the four boat-based mapping events (three days each) and the underlying information for how these measurements were processed. These resulting data files can be used to generate high spatial resolution maps of all measurements and can be integrated into empirical model that estimate mercury species concentrations and to generate high spatial resolution mercury concentration maps from these boat-based measurements.
