Biogeochemical model hindcast for the Gulf of Mexico (monthly-averaged, 1993-01-01 to 2012-12-31)

A biogeochemical model based on NEMURO (North Pacific Ecosystem Model for Understanding Regional Oceanography) was extensively adapted for the Gulf of Mexico and run for the twenty-year period 1993-2012. The dataset contains 30-day averages for eleven biogeochemical model state variables (nitrate, ammonium, dissolved silicate, dissolved organic nitrogen, particulate organic nitrogen, particulate silicate, small phytoplankton, large phytoplankton, small zooplankton, large zooplankton, predatory zooplankton) and the diagnostic chlorophyll field. NEMURO was forced by daily-averaged three-dimensional fields of temperature, salinity, and velocity of the 1/25° HYCOM model. Biogeochemical transport was computed offline using the MITgcm modeling environment with a longer time step. This dataset supports the publication: Shropshire, T.A.; Morey, S.L.; Chassignet, E.P.; Bozec, A.; Coles, V.J.; Landry, M.R.; Swalethorp, R.; Zapfe, G.; Stukel, M.R. (2020). Quantifying spatiotemporal variability in zooplankton dynamics in the Gulf of Mexico with a physical-biogeochemical model. Biogeosciences, 17, 13, 3385-3407. doi:10.5194/bg-17-3385-2020