| Chemical data | Chemical data associated with field collections. | Alexandrium-isotopes | d18O_NO3 |
| ETSP 2013 NO3 NO2 N2O | Nitrate, nitrite, and nitrous oxide isotope measurements from the Eastern Tropical South Pacific ocean (NBP13-05) | N2O Cycling | d18O_NO3, d18O_NO3_sd |
| ETSP NO3 and NO2 isotopes | ETSP NO3 and NO2 isotopes | Microbial Nitrification | del18O_NO3, del18O_NO3_sd |
| GN01 Aerosol Nitrate | Aerosol Nitrate (NO3) from US GEOTRACES Arctic cruise, HLY1502 | U.S. GEOTRACES Arctic, US GEOTRACES Arctic Nitrogen Flux | NITRATE_18_16_A_SML_DELTA_HIVOL |
| GN01 Sea Ice Hole NO3 NH4 H2O | Nitrate (NO3), ammonium (NH4), and oxygen & deuterium isotopic composition from sea ice hole water sampling on the US GEOTRACES Arctic cruise, HLY1502 | U.S. GEOTRACES Arctic, US GEOTRACES Arctic Nitrogen Flux | NITRATE_18_16_D_DELTA_PUMP |
| GN01 Sea Ice NO3 NH4 H2O | Nitrate (NO3), ammonium (NH4), and oxygen & deuterium isotopic composition from sea ice collected on the US GEOTRACES Arctic cruise, HLY1502 | US GEOTRACES Arctic Nitrogen Flux, U.S. GEOTRACES Arctic | NITRATE_18_16_D_DELTA_ICORE |
| GN01 Snow NO3 NH4 H2O | Nitrate (NO3), ammonium (NH4), and oxygen & deuterium isotopic composition from snow collected on the US GEOTRACES Arctic cruise, HLY1502 | U.S. GEOTRACES Arctic, US GEOTRACES Arctic Nitrogen Flux | NITRATE_18_16_D_DELTA_SNOW |
| GP15 Nitrate d15N and d18O Leg 1 | GP15 Nitrate d15N and d18O Leg 1 | U.S. GEOTRACES PMT, PMT Nitrate | NITRATE_18_16_D_DELTA_BOTTLE_no8ude, SD1_NITRATE_18_16_D_DELTA_BOTTLE_no8ude |
| GP15 Nitrate d15N and d18O Leg 2 | GP15 Nitrate d15N and d18O Leg 2 | PMT Nitrate, U.S. GEOTRACES PMT | NITRATE_18_16_D_DELTA_BOTTLE_dksgvb, SD1_NITRATE_18_16_D_DELTA_BOTTLE_dksgvb |
| GP16 Nitrate aerosol isotopes | Nitrate (NO3) aerosol isotopes from the U.S. GEOTRACES EPZT cruise | U.S. GEOTRACES EPZT, EPZT Nitrogen Isotopes | NO3_18_16_A_SML_DELTA_HIVOL |
| GT10-11 - Nitrate isotopes | Nitrogen and Oxygen isotope ratios of dissolved nitrate | U.S. GEOTRACES NAT | d18O_NO3 |
| Gulf of Mexico NO3 isotopes | | SW Pac N2 fixation | NO3_NO2_d18O |
| Hydrocasts_nitrate | Nitrate nitrogen and oxygen isotope hydrocast data the Southern Ocean | CAREER | d180_NO3 |
| IEP February and May 2017 | Nutrient and nitrate isotope data from the southern Benguela upwelling system from February to August 2017 | SBUS Hypoxia | O18_NO3, O18_stdev |
| Isotopes | Isotopes | OA - Canada Basin | d18O |
| N and O isotope effects of nitrate reductases | N and O isotope effects of nitrate reduction by 3 forms of nitrate reductase. | 15N2 Contamination | d18O |
| N2 excess and N species isotopic composition | Vertical profiles from the Mexican OMZ of N2 gas concentrations in excess of equilibrium values along with the isotopic composition of total N2, NO3- and NO2- | OMZ Biogeochemistry Floats | d18O_NO3 |
| N2O Natural Abundance Isotopomers | N2O Natural Abundance Isotopomers in ETNP | N2O in ETNP | d18O_NO3_meas1, d18O_NO3_meas2, d18O_NO3_meas3 |
| Nitrate isotopes | Nitrate dual isotope (d15N and d18O) measurements. | CoFeMUG | d18O_NO3 |
| Nitrogen and carbon isotopes | Seawater and filter sample Nitrogen and Carbon isotopes from coastal and off-shore sites | Regenerated Nitrogen | d18O_NO3 |
| Porewater Nitrogen | Porewater measurements of nitrate and nitrite concentration and N and O isotopic ratios (d15N and d18O) from sites 3 and 10 on the North Atlantic Long Core Cruise R/V Knorr KN223 | North Atlantic Nitrate and Nitrite | d18O_Nitrate |
| Sediment Core Incubations - Sylt 2013 | | Coastal_Nitrous_Oxide | NO3_d18O |
| South Pacific Nitrate Isotopes | Nitrate and Oxygen isotope measurements from CLIVAR line P16S in 2005 | CAREER | NO3d180 |
| Tropical Pacific nitrate nitrogen and oxygen isotopes | Tropical Pacific nitrate N and O isotopes | Diatom-bound_N_Isotopes, CAREER | nitrate_d18O |
| winter nitrate isotopes - hydrocast | Wintertime nitrate delta 15N and delta 18O from hydrocasts in the Southern Ocean south of Africa. | Diatom-bound_N_Isotopes | d18O_NO3_mean |
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