Output from Regional Ocean Modeling System (ROMS) to evaluate the performance of offline passive tracer advection, 2010-04-20 to 2010-05-05

Output from running numerical simulations of online and offline passive tracer advection in Regional Ocean Modeling System (ROMS). The simulations are presented and analyzed in the associated paper by Thyng et al., 2021. The dataset contains instantaneous and averaged fields showing the evolution of an initial dye patch placed southwest of the Mississippi River delta. Two different tracer advection algorithms, with and without vertical salinity diffusion, varying time steps and output intervals were used to evaluate the performance of the offline tracer transport module. The output contains three-dimensional and vertically-averaged velocities, free surface elevation, and tracer concentration in addition to grid specifications, coefficients, model toggle flags, the s-coordinate transformation parameters, and land/sea mask. The related dataset with the input files for running offline passive tracer advection simulation in ROMS is available under GRIIDC Unique Dataset Identifier (UDI) R6.x803.000:0019 (doi: 10.7266/YF0QPBFC). This dataset supports the publication: Thyng, K. M., Kobashi, D., Ruiz-Xomchuk, V., Qu, L., Chen, X., & Hetland, R. D. (2021). Performance of offline passive tracer advection in the Regional Ocean Modeling System (ROMS; v3.6, revision 904). Geoscientific Model Development, 14(1), 391–407. doi:10.5194/gmd-14-391-2021.