Description: Number of in situ measurements obtained from instruments carried aboard oceanographic research and merchant ships. This is of annual data distribution.
The spatial and temporal coverage of nitrates data in the Gulf of Mexico is not uniform, and most of the historical data were collected over the continental shelf near shallow intertidal areas (<200 m depth).
Copyright Text: National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
Description: Nitrates at 10m water depth for winter, spring, summer, and fall show relatively large horizontal gradients due to the effects of surface biological uptake, physical forcing (e.g., vertical stratification, upwelling of nutrient-rich water, and circulation), river nutrient inputs, and decomposition of labile organic matter.
Copyright Text: National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
Description: Climatological mean fields of nitrates for the fall season (October - December) at 10m water depth on a one degree grid. Measurements are in umol/l.
Copyright Text: National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
Description: Climatological mean fields of nitrates for the winter season (January - March) at 10m water depth on a one degree grid. Measurements are in umol/l.
Copyright Text: National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
Description: Climatological mean fields of nitrates for the spring season (April - June) at 10m water depth on a one degree grid. Measurements are in umol/l.
Copyright Text: National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
Description: Climatological mean fields of nitrates for the summer season (July - September) at 10m water depth on a one degree grid. Measurements are in umol/l.
Copyright Text: National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
Description: At deeper depths, nitrates at 250 m for winter, spring, summer, and fall show marked west-to-east zonal gradients that reflect the advection of waters of different preformed concentrations entering the Gulf of Mexico between the Yucatan Peninsula, Cuba, and Florida.
Copyright Text: National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
Description: Climatological mean fields of nitrates for the fall season (October - December) at 250m water depth on a one degree grid. Measurements are in umol/l.
Copyright Text: National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
Description: Climatological mean fields of nitrates for the winter season (January - March) at 250m water depth on a one degree grid. Measurements are in umol/l.
Copyright Text: National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
Description: Climatological mean fields of nitrates for the spring season (April - June) at 250m water depth on a one degree grid. Measurements are in umol/l.
Copyright Text: National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
Description: Climatological mean fields of nitrates for the summer season (July - September) at 250m water depth on a one degree grid. Measurements are in umol/l.
Copyright Text: National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce