| delta 15N NO3 | Detected 15N-labeled nitrate (NO3) in commercial 15N2 gas. | 15N2 Contamination | delta_15N_NO3 |
| DON concentration and DON d15N | Measurements of dissolved organic nitrogen concentration and d15N | Microbial Nitrification, N2 fixation ETSP | NO3_NO2_d15N |
| ETSP 2013 NO3 NO2 N2O | Nitrate, nitrite, and nitrous oxide isotope measurements from the Eastern Tropical South Pacific ocean (NBP13-05) | N2O Cycling | d15N_NO3_sd, d15N_NO3 |
| ETSP NO3 and NO2 isotopes | ETSP NO3 and NO2 isotopes | Microbial Nitrification | del15N_NO3, del15N_NO3_sd |
| Global model nitrate d15N | Estimated nitrate d15N | Fe Cycle Models and Observations | d15N, d15N_stdev |
| Global observed nitrate d15N | Published and unpublished nitrate d15N measurements | Fe Cycle Models and Observations | nitrate_d15N |
| GN01 Aerosol Nitrate | Aerosol Nitrate (NO3) from US GEOTRACES Arctic cruise, HLY1502 | U.S. GEOTRACES Arctic, US GEOTRACES Arctic Nitrogen Flux | NITRATE_15_14_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_15_14_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 | U.S. GEOTRACES Arctic, US GEOTRACES Arctic Nitrogen Flux | NITRATE_15_14_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_15_14_D_DELTA _SNOW |
| GP16 d15N NO3 | Nitrate isotope data from the US GEOTRACES EPZT cruise. | U.S. GEOTRACES EPZT, EPZT Nitrogen Isotopes | NO3_15_D_DELTA_BOTTLE |
| GP16 Nitrate aerosol isotopes | Nitrate (NO3) aerosol isotopes from the U.S. GEOTRACES EPZT cruise | U.S. GEOTRACES EPZT, EPZT Nitrogen Isotopes | NO3_15_14_A_SML_DELTA_HIVOL |
| GT10-11 - delta 15N-NO3 | delta 15N of nitrate from GT10 and GT11 cruises. | U.S. GEOTRACES NAT | d15N_NO3 |
| GT10-11 - Nitrate isotopes | Nitrogen and Oxygen isotope ratios of dissolved nitrate | U.S. GEOTRACES NAT | d15N_NO3 |
| Hydrocasts_nitrate | Nitrate nitrogen and oxygen isotope hydrocast data the Southern Ocean | CAREER | dN15_NO3 |
| IEP February and May 2017 | Nutrient and nitrate isotope data from the southern Benguela upwelling system from February to August 2017 | SBUS Hypoxia | N15_NO3 |
| N and O isotope effects of nitrate reductases | N and O isotope effects of nitrate reduction by 3 forms of nitrate reductase. | 15N2 Contamination | d15N |
| 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 | d15NO3 |
| N2O Natural Abundance Isotopomers | N2O Natural Abundance Isotopomers in ETNP | N2O in ETNP | d15N_NO3_meas1, d15N_NO3_meas2, d15N_NO3_meas3 |
| Nitrate isotopes | Nitrate dual isotope (d15N and d18O) measurements. | CoFeMUG | d15N_NO3 |
| Nitrogen and carbon isotopes | Seawater and filter sample Nitrogen and Carbon isotopes from coastal and off-shore sites | Regenerated Nitrogen | dN15_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 | d15N_Nitrate |
| Sediment Core Incubations - Sylt 2013 | | Coastal_Nitrous_Oxide | NO3_d15N |
| South Pacific Nitrate Isotopes | Nitrate and Oxygen isotope measurements from CLIVAR line P16S in 2005 | CAREER | NO3d15N |
| Southern Ocean foraminifer N isotopes | Planktic foraminifer tissue and shell d15N from net tows in the African sector | N Isotopes Foraminifera, stable isotope instrumentation, Diatom-bound_N_Isotopes | d15N_avg_nitrate |
| Southern Ocean seawater N isotopes | Nitrate+nitrite and nitrate-only δ15N from the Southern Ocean south of Africa | N Isotopes Foraminifera, stable isotope instrumentation, Diatom-bound_N_Isotopes | d15N_avg_nitrate, d15N_stdev_nitrate |
| Tropical Pacific nitrate nitrogen and oxygen isotopes | Tropical Pacific nitrate N and O isotopes | Diatom-bound_N_Isotopes, CAREER | nitrate_d15N |
| Underway_nitrate | Nitrate nitrogen and oxygen isotope underway data the Southern Ocean | CAREER | d15N_NO3 |
| winter nitrate isotopes - hydrocast | Wintertime nitrate delta 15N and delta 18O from hydrocasts in the Southern Ocean south of Africa. | Diatom-bound_N_Isotopes | d15N_NO3_mean |
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