| URI | 
          http://vocab.nerc.ac.uk/collection/P02/current/NTRA/ | 
        
        
          | Within Vocab | 
          SeaDataNet Parameter Discovery Vocabulary | 
        
        
        
          | Alternative Labels | 
          
            
              WC_NO3
            
           | 
        
        
        
          | Definition | 
          Nitrate concentration parameters (including statistical parameters such as standard deviation) in the water column. Includes nitrate+nitrite, which is often loosely referred to as nitrate. | 
        
        
          | Date | 
          2007-02-01T09:10:12 | 
        
        
        
          
            
              | Identifier | 
              SDN:P02::NTRA | 
            
          
            
              | Note | 
              accepted | 
            
          
        
        
          
            
              | Has Current Version | 
              3 | 
            
          
        
        
        
          | Version | 
          
            
              1
              , 
            
              2
              
          
           | 
        
        
        
        
          
            
              | replaces | 
              Nitrate+nitrite concentration parameters in the water column |  | 
            
          
            
              | version | 
              3 | 
            
          
            
              | inScheme | 
              http://vocab.nerc.ac.uk/scheme/NETOC_PARAM/current/ | 
            
          
            
               | 
              http://vocab.nerc.ac.uk/scheme/NETMAR_OCEAN/current/ | 
            
          
            
               | 
              http://vocab.nerc.ac.uk/scheme/EDMED_DCAT_THEMES/current/ | 
            
          
        
        
        
        
            
            | 
              Broader
             | 
			
				
					
					
                P36:FERTIL | 
                N+P nutrients | 
            Mapping: 1601785 | 
					
				
				
					
						
				
			
				
					
						
						| 
					
					
                 | P22:28 | 
                Oceanographic geographical features | 
            Mapping: 172645 | 
					
				
				
					
						
				
			
				
					
						
						| 
					
					
                 | P05:014 | 
                oceans | 
            Mapping: 33169 | 
					
				
				
					
						
				
			
				
					
						
						| 
					
					
                 | D01:D0100001 | 
                Parameters | 
            Mapping: 1392541 | 
					
				
				
					
						
				
			
				
					
						
						| 
					
					
                 | L19:005 | 
                theme | 
            Mapping: 206967 | 
					
				
				
					
						
				
			
				
					
						
						| 
					
					
                 | L04:L04001 | 
                water body | 
            Mapping: 801243 | 
					
				
				
					
						
				
			
				
					
					
						
							| 
                 | P03:C005 | 
                Carbon, nitrogen and phosphorus | 
            Mapping: 2177 | 
						
					
						
							| 
                 | P03:C040 | 
                Nutrients | 
            Mapping: 2024 | 
						
					
				
				
					
						
				
			
				
					
					
						
							| 
                 | C47:IN5_1_2 | 
                Nutrient ratios | 
            Mapping: 184618 | 
						
					
						
							| 
                 | C47:IN5_1_1 | 
                Nutrients concentration in the water column | 
            Mapping: 184617 | 
						
					
				
				
					
						
				
			
        
            
            | 
              Narrower
             | 
			
				
					
					
                P04:G892 | 
                EARTH SCIENCE > Oceans > Ocean Chemistry > Nitrate | 
            Mapping: 731 | 
					
				
				
					
						
				
			
				
					
						
						| 
					
					
                 | P64:G892 | 
                EARTH SCIENCE > Oceans > Ocean Chemistry > Nitrate | 
            Mapping: 504546 | 
					
				
				
					
						
				
			
				
					
						
						| 
					
					
                 | P02:NTRZ | 
                Nitrate+nitrite concentration parameters in the water column | 
            Mapping: 157162 | 
					
				
				
					
						
				
			
				
					
					
						
							| 
                 | P07:DABDADJB | 
                mole_concentration_of_nitrate_and_nitrite_in_sea_water | 
            Mapping: 481771 | 
						
					
						
							| 
                 | P07:CFSN0806 | 
                mole_concentration_of_nitrate_in_sea_water | 
            Mapping: 32030 | 
						
					
						
							| 
                 | P07:CFSN0514 | 
                moles_of_nitrate_and_nitrite_per_unit_mass_in_sea_water | 
            Mapping: 32031 | 
						
					
						
							| 
                 | P07:CFSN0515 | 
                moles_of_nitrate_per_unit_mass_in_sea_water | 
            Mapping: 32032 | 
						
					
				
				
					
						
				
			
				
					
					
						
							| 
                 | P09:NTAW | 
                NITRATE (NO3-N) CONTENT | 
            Mapping: 111762 | 
						
					
						
							| 
                 | P09:NTRA | 
                NITRATE (NO3-N) CONTENT | 
            Mapping: 111861 | 
						
					
						
							| 
                 | P09:NTRZ | 
                NITRATE + NITRITE CONTENT | 
            Mapping: 112050 | 
						
					
						
							| 
                 | P09:NTZW | 
                NITRATE + NITRITE CONTENT | 
            Mapping: 111978 | 
						
					
				
				
					
						
				
			
				
					
					
						
							| 
                 | P01:NTRA04LW | 
                Concentration (nM sensitivity) of nitrate {NO3- CAS 14797-55-8} per unit volume of the water body [dissolved plus reactive particulate <0.4/0.45um phase] by filtration and colorimetric autoanalysis with liquid waveguide capilliary cell and correction for nitrite | 
            Mapping: 526290 | 
						
					
						
							| 
                 | P01:NTRZLWTX | 
                Concentration (nM sensitivity) of nitrate+nitrite {NO3+NO2} per unit volume of the water body [dissolved plus reactive particulate phase] by colorimetric autoanalysis with liquid waveguide capilliary cell | 
            Mapping: 390834 | 
						
					
						
							| 
                 | P01:NTRAKGD5 | 
                Concentration of nitrate {NO3- CAS 14797-55-8} per unit mass of the water body [dissolved plus reactive particulate <0.2um phase] by filtration and colorimetric autoanalysis and correction for nitrite | 
            Mapping: 465290 | 
						
					
						
							| 
                 | P01:NTRAMS02 | 
                Concentration of nitrate {NO3- CAS 14797-55-8} per unit mass of the water body [dissolved plus reactive particulate phase] | 
            Mapping: 820584 | 
						
					
						
							| 
                 | P01:NTRAMW04 | 
                Concentration of nitrate {NO3- CAS 14797-55-8} per unit mass of the water body [dissolved plus reactive particulate phase] by colorimetric autoanalysis | 
            Mapping: 1590176 | 
						
					
						
							| 
                 | P01:NTRAKGTX | 
                Concentration of nitrate {NO3- CAS 14797-55-8} per unit mass of the water body [dissolved plus reactive particulate phase] by colorimetric autoanalysis and correction for nitrite | 
            Mapping: 465294 | 
						
					
						
							| 
                 | P01:MDMAP005 | 
                Concentration of nitrate {NO3- CAS 14797-55-8} per unit mass of the water body [unknown phase] | 
            Mapping: 438542 | 
						
					
						
							| 
                 | P01:ODSDM2UM | 
                Concentration of nitrate {NO3- CAS 14797-55-8} per unit volume of the water body [dissolved plus reactive particulate <0.2um phase] by filtration and colorimetric autoanalysis and correction for nitrite | 
            Mapping: 385170 | 
						
					
						
							| 
                 | P01:NTRAAA04 | 
                Concentration of nitrate {NO3- CAS 14797-55-8} per unit volume of the water body [dissolved plus reactive particulate <0.4/0.45um phase] by filtration and colorimetric autoanalysis and correction for nitrite | 
            Mapping: 437494 | 
						
					
						
							| 
                 | P01:ODSDM1UM | 
                Concentration of nitrate {NO3- CAS 14797-55-8} per unit volume of the water body [dissolved plus reactive particulate <1.2um phase] by filtration and manual colorimetric analysis and correction for nitrite | 
            Mapping: 390646 | 
						
					
						
							| 
                 | P01:NTRAAAD4 | 
                Concentration of nitrate {NO3- CAS 14797-55-8} per unit volume of the water body [dissolved plus reactive particulate <GF/C phase] by filtration and colorimetric autoanalysis and correction for nitrite | 
            Mapping: 522890 | 
						
					
						
							| 
                 | P01:NTRAAAD1 | 
                Concentration of nitrate {NO3- CAS 14797-55-8} per unit volume of the water body [dissolved plus reactive particulate <GF/F phase] by filtration and colorimetric autoanalysis and correction for nitrite | 
            Mapping: 522886 | 
						
					
						
							| 
                 | P01:NTRTFSG1 | 
                Concentration of nitrate {NO3- CAS 14797-55-8} per unit volume of the water body [dissolved plus reactive particulate <GF/F phase] by filtration, sudan-1 synthesis, SPE extraction, HPLC purification and gas chromatography-mass spectrometry | 
            Mapping: 486754 | 
						
					
						
							| 
                 | P01:NTRAXXDZ | 
                Concentration of nitrate {NO3- CAS 14797-55-8} per unit volume of the water body [dissolved plus reactive particulate <unknown phase] | 
            Mapping: 460150 | 
						
					
						
							| 
                 | P01:ODSDM014 | 
                Concentration of nitrate {NO3- CAS 14797-55-8} per unit volume of the water body [dissolved plus reactive particulate <unknown phase] by filtration and colorimetric autoanalysis and correction for nitrite | 
            Mapping: 418906 | 
						
					
						
							| 
                 | P01:NO3FLTIC | 
                Concentration of nitrate {NO3- CAS 14797-55-8} per unit volume of the water body [dissolved plus reactive particulate <unknown phase] by filtration and ion chromatography | 
            Mapping: 359250 | 
						
					
						
							| 
                 | P01:NTRAMADZ | 
                Concentration of nitrate {NO3- CAS 14797-55-8} per unit volume of the water body [dissolved plus reactive particulate <unknown phase] by filtration and manual colorimetric analysis and correction for nitrite | 
            Mapping: 435774 | 
						
					
						
							| 
                 | P01:NTRAYYDZ | 
                Concentration of nitrate {NO3- CAS 14797-55-8} per unit volume of the water body [dissolved plus reactive particulate phase] | 
            Mapping: 460130 | 
						
					
						
							| 
                 | P01:CHEMM012 | 
                Concentration of nitrate {NO3- CAS 14797-55-8} per unit volume of the water body [dissolved plus reactive particulate phase] by colorimetric autoanalysis and correction for nitrite | 
            Mapping: 424662 | 
						
					
						
							| 
                 | P01:NTRZMC01 | 
                Concentration of nitrate {NO3- CAS 14797-55-8} per unit volume of the water body [dissolved plus reactive particulate phase] by in-situ UV absorption spectrometer and calibration against independent measurements | 
            Mapping: 458778 | 
						
					
						
							| 
                 | P01:NTRZMS01 | 
                Concentration of nitrate {NO3- CAS 14797-55-8} per unit volume of the water body [dissolved plus reactive particulate phase] by in-situ UV absorption spectrometer and laboratory calibration applied | 
            Mapping: 438834 | 
						
					
						
							| 
                 | P01:NO3UFLIC | 
                Concentration of nitrate {NO3- CAS 14797-55-8} per unit volume of the water body [dissolved plus reactive particulate phase] by ion chromatography | 
            Mapping: 361046 | 
						
					
						
							| 
                 | P01:NTRAZZXX | 
                Concentration of nitrate {NO3- CAS 14797-55-8} per unit volume of the water body [unknown phase] | 
            Mapping: 432638 | 
						
					
						
							| 
                 | P01:NTRZKGD5 | 
                Concentration of nitrate+nitrite {NO3+NO2} per unit mass of the water body [dissolved plus reactive particulate <0.2um phase] by filtration and colorimetric autoanalysis | 
            Mapping: 465306 | 
						
					
						
							| 
                 | P01:NTRZKGD1 | 
                Concentration of nitrate+nitrite {NO3+NO2} per unit mass of the water body [dissolved plus reactive particulate <GF/F phase] by filtration and colorimetric autoanalysis | 
            Mapping: 463802 | 
						
					
						
							| 
                 | P01:NTRAMS01 | 
                Concentration of nitrate+nitrite {NO3+NO2} per unit mass of the water body [dissolved plus reactive particulate phase] | 
            Mapping: 443110 | 
						
					
						
							| 
                 | P01:NTKGAATX | 
                Concentration of nitrate+nitrite {NO3+NO2} per unit mass of the water body [dissolved plus reactive particulate phase] by colorimetric autoanalysis | 
            Mapping: 464282 | 
						
					
						
							| 
                 | P01:MDMAP006 | 
                Concentration of nitrate+nitrite {NO3+NO2} per unit mass of the water body [unknown phase] | 
            Mapping: 438722 | 
						
					
						
							| 
                 | P01:NTRZAAD5 | 
                Concentration of nitrate+nitrite {NO3+NO2} per unit volume of the water body [dissolved plus reactive particulate <0.2um phase] by filtration and colorimetric autoanalysis | 
            Mapping: 370538 | 
						
					
						
							| 
                 | P01:NTRZAAD2 | 
                Concentration of nitrate+nitrite {NO3+NO2} per unit volume of the water body [dissolved plus reactive particulate <0.4/0.45um phase] by filtration and colorimetric autoanalysis | 
            Mapping: 360778 | 
						
					
						
							| 
                 | P01:NTRZAAD3 | 
                Concentration of nitrate+nitrite {NO3+NO2} per unit volume of the water body [dissolved plus reactive particulate <GF/C phase] by filtration and colorimetric autoanalysis | 
            Mapping: 360782 | 
						
					
						
							| 
                 | P01:NTRZMAD3 | 
                Concentration of nitrate+nitrite {NO3+NO2} per unit volume of the water body [dissolved plus reactive particulate <GF/C phase] by filtration and manual colorimetric analysis | 
            Mapping: 428094 | 
						
					
						
							| 
                 | P01:NTRZAAD1 | 
                Concentration of nitrate+nitrite {NO3+NO2} per unit volume of the water body [dissolved plus reactive particulate <GF/F phase] by filtration and colorimetric autoanalysis | 
            Mapping: 360774 | 
						
					
						
							| 
                 | P01:NTRAFSG1 | 
                Concentration of nitrate+nitrite {NO3+NO2} per unit volume of the water body [dissolved plus reactive particulate <GF/F phase] by filtration, sudan-1 synthesis, SPE extraction, HPLC purification and gas chromatography-mass spectrometry | 
            Mapping: 448958 | 
						
					
						
							| 
                 | P01:NTRZXXDZ | 
                Concentration of nitrate+nitrite {NO3+NO2} per unit volume of the water body [dissolved plus reactive particulate <unknown phase] | 
            Mapping: 460146 | 
						
					
						
							| 
                 | P01:NTRZAADZ | 
                Concentration of nitrate+nitrite {NO3+NO2} per unit volume of the water body [dissolved plus reactive particulate <unknown phase] by filtration and colorimetric autoanalysis | 
            Mapping: 360770 | 
						
					
						
							| 
                 | P01:NTRZMADZ | 
                Concentration of nitrate+nitrite {NO3+NO2} per unit volume of the water body [dissolved plus reactive particulate <unknown phase] by filtration and manual colorimetric analysis | 
            Mapping: 435946 | 
						
					
						
							| 
                 | P01:NTRZYYDZ | 
                Concentration of nitrate+nitrite {NO3+NO2} per unit volume of the water body [dissolved plus reactive particulate phase] | 
            Mapping: 460134 | 
						
					
						
							| 
                 | P01:NTRZAATX | 
                Concentration of nitrate+nitrite {NO3+NO2} per unit volume of the water body [dissolved plus reactive particulate phase] by colorimetric autoanalysis | 
            Mapping: 360786 | 
						
					
						
							| 
                 | P01:NTRZNS01 | 
                Concentration of nitrate+nitrite {NO3+NO2} per unit volume of the water body [dissolved plus reactive particulate phase] by in-situ nutrient analysis system | 
            Mapping: 381766 | 
						
					
						
							| 
                 | P01:NTRZNS02 | 
                Concentration of nitrate+nitrite {NO3+NO2} per unit volume of the water body [dissolved plus reactive particulate phase] by in-situ nutrient analysis system (second sensor) | 
            Mapping: 481690 | 
						
					
						
							| 
                 | P01:NTRZMATX | 
                Concentration of nitrate+nitrite {NO3+NO2} per unit volume of the water body [dissolved plus reactive particulate phase] by manual colorimetric analysis | 
            Mapping: 358782 | 
						
					
						
							| 
                 | P01:NTRZMOD1 | 
                Concentration of nitrate+nitrite {NO3+NO2} per unit volume of the water body [dissolved plus reactive particulate phase] by model prediction | 
            Mapping: 1711138 | 
						
					
						
							| 
                 | P01:NTRZNNTX | 
                Concentration of nitrate+nitrite {NO3+NO2} per unit volume of the water body [dissolved plus reactive particulate phase] by nanomolar Nox system after Garside (1982) | 
            Mapping: 385166 | 
						
					
						
							| 
                 | P01:NTRZZZXX | 
                Concentration of nitrate+nitrite {NO3+NO2} per unit volume of the water body [unknown phase] | 
            Mapping: 369934 | 
						
					
						
							| 
                 | P01:NTRZAAZX | 
                Concentration of nitrate+nitrite {NO3+NO2} per unit volume of the water body [unknown phase] by colorimetric autoanalysis | 
            Mapping: 360790 | 
						
					
						
							| 
                 | P01:NTRZMAZX | 
                Concentration of nitrate+nitrite {NO3+NO2} per unit volume of the water body [unknown phase] by manual colorimetric analysis | 
            Mapping: 363174 | 
						
					
						
							| 
                 | P01:SDNZLWTX | 
                Concentration standard deviation (nM sensitivity) of nitrate+nitrite {NO3+NO2} per unit volume of the water body [dissolved plus reactive particulate phase] by colorimetric autoanalysis with liquid waveguide capilliary cell | 
            Mapping: 436534 | 
						
					
						
							| 
                 | P01:NTRAAA05 | 
                Concentration standard deviation of nitrate {NO3- CAS 14797-55-8} per unit volume of the water body [dissolved plus reactive particulate <0.4/0.45um phase] by filtration and colorimetric autoanalysis and correction for nitrite | 
            Mapping: 894600 | 
						
					
						
							| 
                 | P01:NTRASD03 | 
                Concentration standard deviation of nitrate {NO3- CAS 14797-55-8} per unit volume of the water body [dissolved plus reactive particulate <GF/F phase] by filtration and colorimetric autoanalysis and correction for nitrite | 
            Mapping: 523206 | 
						
					
						
							| 
                 | P01:NTRTSSD1 | 
                Concentration standard deviation of nitrate {NO3- CAS 14797-55-8} per unit volume of the water body [dissolved plus reactive particulate <GF/F phase] by filtration, sudan-1 synthesis, SPE extraction, HPLC purification and gas chromatography-mass spectrometry | 
            Mapping: 486758 | 
						
					
						
							| 
                 | P01:CHESD012 | 
                Concentration standard deviation of nitrate {NO3- CAS 14797-55-8} per unit volume of the water body [dissolved plus reactive particulate phase] by colorimetric autoanalysis and correction for nitrite | 
            Mapping: 1791386 | 
						
					
						
							| 
                 | P01:SDNZKGD1 | 
                Concentration standard deviation of nitrate+nitrite {NO3+NO2} per unit mass of the water body [dissolved plus reactive particulate <GF/F phase] by filtration and colorimetric autoanalysis | 
            Mapping: 529626 | 
						
					
						
							| 
                 | P01:NTRZASD5 | 
                Concentration standard deviation of nitrate+nitrite {NO3+NO2} per unit volume of the water body [dissolved plus reactive particulate <0.2um phase] by filtration and colorimetric autoanalysis | 
            Mapping: 1580620 | 
						
					
						
							| 
                 | P01:SDNZAAD2 | 
                Concentration standard deviation of nitrate+nitrite {NO3+NO2} per unit volume of the water body [dissolved plus reactive particulate <0.4/0.45um phase] by filtration and colorimetric autoanalysis | 
            Mapping: 365114 | 
						
					
						
							| 
                 | P01:NTRZAAE4 | 
                Concentration standard deviation of nitrate+nitrite {NO3+NO2} per unit volume of the water body [dissolved plus reactive particulate <GF/C phase] by filtration and colorimetric autoanalysis | 
            Mapping: 1593024 | 
						
					
						
							| 
                 | P01:SDNZAAD1 | 
                Concentration standard deviation of nitrate+nitrite {NO3+NO2} per unit volume of the water body [dissolved plus reactive particulate <GF/F phase] by filtration and colorimetric autoanalysis | 
            Mapping: 384798 | 
						
					
						
							| 
                 | P01:NTRAFSD1 | 
                Concentration standard deviation of nitrate+nitrite {NO3+NO2} per unit volume of the water body [dissolved plus reactive particulate <GF/F phase] by filtration, sudan-1 synthesis, SPE extraction, HPLC purification and gas chromatography-mass spectrometry | 
            Mapping: 448962 | 
						
					
						
							| 
                 | P01:SDNZAATX | 
                Concentration standard deviation of nitrate+nitrite {NO3+NO2} per unit volume of the water body [dissolved plus reactive particulate phase] by colorimetric autoanalysis | 
            Mapping: 396002 | 
						
					
						
							| 
                 | P01:SDNTAAZX | 
                Concentration standard deviation of nitrate+nitrite {NO3+NO2} per unit volume of the water body [unknown phase] by colorimetric autoanalysis | 
            Mapping: 438658 | 
						
					
						
							| 
                 | P01:SENZMATX | 
                Concentration standard error of nitrate+nitrite {NO3+NO2} per unit volume of the water body [dissolved plus reactive particulate phase] by manual colorimetric analysis | 
            Mapping: 358790 | 
						
					
				
				
					
						
				
			
        
            
            | 
              Related
             | 
			
				
					
					
                P04:G898 | 
                EARTH SCIENCE > Oceans > Ocean Chemistry > Nutrients | 
            Mapping: 748 | 
					
				
				
					
						
				
			
				
					
						
						| 
					
					
                 | P64:G898 | 
                EARTH SCIENCE > Oceans > Ocean Chemistry > Nutrients | 
            Mapping: 502349 | 
					
				
				
					
						
				
			
				
					
					
						
							| 
                 | P07:CF12N537 | 
                mole_ratio_of_nitrate_to_phosphate_in_sea_water | 
            Mapping: 167490 | 
						
					
						
							| 
                 | P07:CF14N86 | 
                tendency_of_mole_concentration_of_dissolved_inorganic_nitrogen_in_sea_water_due_to_biological_processes | 
            Mapping: 183177 | 
						
					
						
							| 
                 | P07:CF14N109 | 
                tendency_of_ocean_mole_content_of_dissolved_inorganic_nitrogen | 
            Mapping: 183178 | 
						
					
						
							| 
                 | P07:CF14N110 | 
                tendency_of_ocean_mole_content_of_dissolved_inorganic_nitrogen_due_to_biological_processes | 
            Mapping: 183179 |