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Nitrogen Oxides Data Access and Tools

Access topic-specific data and resources for accessing, visualizing, preparing/manipulating (e.g. subsetting), and analyzing data. Each observation, model, and reanalysis data has unique characteristics that should be considered when evaluating its use.

An asterisk (*) next to an entry indicates that near real-time (NRT) data products are available through NASA's Land, Atmosphere Near real-time Capability for Earth observation (LANCE). While not intended for scientific research, NRT data are good resources for monitoring ongoing or time-critical events. Learn more about the difference between near real-time versus standard products.

Commonly Used Nitrogen Dioxide Data at a Glance

Spatial ResolutionSpatial CoverageTemporal ResolutionTemporal CoverageSpectral ResolutionSatellite/ PlatformName (Instrument, Model, etc.)Observation, Model, or ReanalysisFile Format
0.25°, 13 km x 24 kmGlobal98 min, Daily2004-near present1.0-0.45 nm Full Width and Half Maximum (FWHM)Aura Ozone Monitoring Instrument (OMI)ObservationHDF-EOS5
5.5 km x 3.5 kmGlobal101.5 minutes2021-present270 nm-2.3 µm, 0.55 nmESA Sentinel-5PTROPOspheric Monitoring Instrument (TROPOMI)ObservationnetCDF
2.0 km x 4.75 kmNorth AmericaHourly08/2023 - present0.6 nmIntelsat 40eTropospheric Emissions: Monitoring Pollution (TEMPO)ObservationnetCDF
0.25º x 0.25°Global15 min, HourlyDaily 5-day forecastN/AN/AGEOS-CFModelnetCDF
0.0083° x 0.0083°Near-globalYearly1990-2020N/AN/ALUR ModelnetCDF
Point measurementsGlobalPeriodic flights occurred during each deployment2016-2018VariesAirborne Field CampaignAtmospheric Tomography Mission (ATom) campaign with varying instrumentsObservationnetCDF

Nitrogen Oxides Datasets

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Dataset Version Platform Instrument Temporal Extent Spatial Extent Spatial Resolution Data Format
NARSTO EPA Supersite (SS) New York Air Chemistry, Particulate Matter, and Meteorological Data 1 GROUND STATIONS BAROMETERS, UV OZONE DETECTORS, PYRANOMETERS, HYGROMETERS, CHEMILUMINESCENCE, ION CHROMATOGRAPHS, ANEMOMETERS, THERMISTORS 2000-01-01 to 2006-01-01

N: 44.39 S: 40.7 E: -73.7 W: -77.21

ASCII
NARSTO EPA_SS_HOUSTON TEXAQS2000 Washburn Tunnel Air Quality Monitoring Data 1 LABORATORY, GROUND STATIONS FOURIER TRANSFORM SPECTROMETERS, GAS CHROMATOGRAPHS, AEROSOL COLLECTORS, CHEMILUMINESCENCE, ION CHROMATOGRAPHS 2000-08-29 to 2000-09-01

N: 30.5 S: 29 E: -93 W: -96

ASCII
NARSTO ICARTT NEAX 2004 DOE G-1 Air Chemistry, Aerosol, and Met Data 1 AIRCRAFT BAROMETERS, UV OZONE DETECTORS, PYRANOMETERS, HYGROMETERS, CHEMILUMINESCENCE, ION CHROMATOGRAPHS, ANEMOMETERS, THERMISTORS 2004-07-24 to 2004-08-11

N: 42.18 S: 38.06 E: -76.2 W: -82.5

ASCII
NARSTO PAC2001 Langley Site Gaseous, Particle, and Meteorological Data 1 GROUND STATIONS, METEOROLOGICAL STATIONS AETHALOMETER, TEMPERATURE PROBES, UV OZONE DETECTORS, GC-MS, TEOM, CHEMILUMINESCENCE, FLUORESCENCE SPECTROSCOPY, ION CHROMATOGRAPHS, HUMIDITY SENSORS, IR CO2 ANALYZER, PRESSURE SENSORS 2001-08-08 to 2001-09-02

N: 49.16 S: 48.41 E: -121.94 W: -123.6

ASCII
NARSTO PAC2001 Sumas Eagle Ridge Gaseous, Particle, and Meteorological Data 1 GROUND STATIONS, METEOROLOGICAL STATIONS AETHALOMETER, UV OZONE DETECTORS, GC-MS, TEOM, CHEMILUMINESCENCE, FLUORESCENCE SPECTROSCOPY, TEMPERATURE SENSORS, ION CHROMATOGRAPHS, HUMIDITY SENSORS, IR CO2 ANALYZER, PRESSURE SENSORS 2001-08-13 to 2001-09-05

N: 49.06 S: 49.04 E: -122.24 W: -122.26

ASCII
NARSTO Pacific 2001 Air Quality Study (PAC2001) Cassiar Tunnel Gaseous and Particle Mass and Composition Data 1 LABORATORY, FIELD SURVEYS GAS CHROMATOGRAPHS, XRF, CHEMILUMINESCENCE, ION CHROMATOGRAPHS, DIFFERENTIAL MOBILITY ANALYZERS 2001-08-08 to 2001-08-15

N: 49.29 S: 49.27 E: -123.02 W: -123.04

ASCII
NARSTO Pacific 2001 Air Quality Study (PAC2001) Golden Ears Gaseous and Particulate Matter (PM) Data 1 GROUND STATIONS AETHALOMETER, TEMPERATURE PROBES, UV OZONE DETECTORS, GAS CHROMATOGRAPHS, XRF, CHEMILUMINESCENCE, ION CHROMATOGRAPHS, HUMIDITY SENSORS, DIFFERENTIAL MOBILITY ANALYZERS, WIND MONITOR, PRESSURE SENSORS 2001-08-03 to 2001-08-11

N: 49.28 S: 49.27 E: -122.5 W: -122.58

ASCII
NARSTO Pacific 2001 Air Quality Study (PAC2001) Slocan Park (SLPK) Slocan Park Site Gaseous, Partculate Matter (PM), and Meteorological Data 1 GROUND STATIONS, METEOROLOGICAL STATIONS AETHALOMETER, TEMPERATURE PROBES, UV OZONE DETECTORS, GC-MS, TEOM, CHEMILUMINESCENCE, FLUORESCENCE SPECTROSCOPY, ION CHROMATOGRAPHS, HUMIDITY SENSORS, IR CO2 ANALYZER, PRESSURE SENSORS 2001-08-11 to 2001-09-01

N: 49.24 S: 49.23 E: -123.04 W: -123.06

ASCII
NARSTO SOS99 Nashville Tennessee Valley Authority (TVA) Surface Meteorology and Chemistry Data 1 GROUND STATIONS, METEOROLOGICAL STATIONS NDIR GAS ANALYZER, UV OZONE DETECTORS, PYRANOMETERS, CHEMILUMINESCENCE, FLUORESCENCE SPECTROSCOPY, ANEMOMETERS, THERMISTORS 1999-06-15 to 1999-07-16

N: 36.25 S: 36.16 E: -86.78 W: -87.36

ASCII
NARSTO SOS99 Nashville WP-3D Orion Air Chemistry Data 1 GROUND STATIONS BAROMETERS, LOPC-PMS, HPLC, HYGROMETERS, CHEMILUMINESCENCE, GPS, SPECTRORADIOMETERS, THERMISTORS 1999-06-26 to 1999-07-19

N: 40.11 S: 27.7 E: -77.97 W: -94.04

ASCII
NARSTO SOS99NASH DOE G-1 Air Chemistry Data 1 G-1 AIRCRAFT BAROMETERS, AEROSOL COLLECTORS, HYGROMETERS, CHEMILUMINESCENCE, INFRARED THERMOMETERS, GUST PROBES, SPECTRORADIOMETERS 1999-06-26 to 1999-06-26

N: 36.66 S: 35.97 E: -86.19 W: -86.98

ASCII
Nitrogen Deposition onto the United States and Western Europe 1 LABORATORY ION CHROMATOGRAPHS 1987-01-01 to 1994-12-31

N: 70.5 S: 25 E: 44.5 W: -124

Text File
OMI/Aura NO2 Tropospheric, Stratospheric & Total Columns MINDS Daily L2 Global Gridded 0.25 degree x 0.25 degree V1.1 (OMI_MINDS_NO2G) at GES DISC 1.1 Aura OMI 2004-10-01 to Present

N: 90 S: -90 E: 180 W: -180

24 Kilometers x 13 Kilometers
OMI/Aura NO2 Tropospheric, Stratospheric & Total Columns MINDS Daily L3 Global Gridded 0.25 degree x 0.25 degree V1.1 (OMI_MINDS_NO2d) at GES DISC 1.1 Aura OMI 2004-10-01 to Present

N: 90 S: -90 E: 180 W: -180

0.25 Decimal Degrees x 0.25 Decimal Degrees
ORACLES Merge Data Files 1 NASA P-3, NASA ER-2 Computer 2016-07-28 to 2019-03-23

N: 37.95 S: -34.95 E: 14.94 W: -76.44

NetCDF-4
OWLETS-1 Analysis Model Data 1 GEOS Computer 2017-07-17 to 2017-07-22

N: 41 S: 34 E: -73 W: -79

NetCDF-4
OWLETS-2 Surface (Ground) Data 1 GROUND STATIONS, Vaisala HydroMet AWS GAS SENSORS, LGR CRDS, Picarro G2401, TEMPERATURE SENSORS, PRESSURE SENSORS, HUMIDITY SENSORS 2018-05-23 to 2018-08-02

N: 39.26 S: 39.24 E: -76.36 W: -76.72

ICARTT
OWLETS-2 University of Maryland Cessna Aircraft Data 1 UMD Cessna, HU-25A GPS, GAS SENSORS, TSI-3563 Neph, AETHALOMETER, PSAP, Picarro G2401, LGR CRDS, GeoTASO 2017-07-07 to 2018-07-20

N: 42.14 S: 37.23 E: -71.94 W: -77.48

ICARTT, HDF5
PEM Tropics A DC-8 In-Situ Trace Gas Data 1 NASA DC-8 DACOM, FLUORESCENCE SPECTROSCOPY, CHEMILUMINESCENCE, GRAB SAMPLERS, GAS CHROMATOGRAPHS, ION CHROMATOGRAPHS 1996-08-22 to 1998-10-08

N: 50 S: -72.55 E: 180 W: -180

GTE
PEM Tropics B DC-8 In-Situ Trace Gas Data 1 NASA DC-8 DACOM, GAS CHROMATOGRAPHS, GRAB SAMPLERS, LIQUID CHROMATOGRAPHS, ION CHROMATOGRAPHS, LIF-NO, CHEMILUMINESCENCE 1999-02-20 to 1999-04-19

N: 40 S: -36.35 E: 180 W: -180

GTE
PEM Tropics B P-3B In-Situ Trace Gas Data 1 P-3B CIMS, DACOM, GAS CHROMATOGRAPHS, CHEMILUMINESCENCE, ION CHROMATOGRAPHS, GRAB SAMPLERS 1999-03-05 to 1999-04-12

N: 40 S: -36.33 E: 180 W: -180

GTE
PEM Tropics B P-3B Photolysis Frequencies (J-Values) 1 P-3B, Data Analysis SAFS 1999-03-05 to 1999-04-12

N: 40 S: -36.33 E: 180 W: -180

GTE
PEM West A DC-8 In-Situ Trace Gas Data 1 NASA DC-8 GRAB SAMPLERS, CHEMILUMINESCENCE, FLUORESCENCE SPECTROSCOPY, DACOM 1991-09-08 to 1991-10-23

N: 61.338 S: -0.058 E: 180 W: -180

GTE
PEM West A Ground Data 1 GROUND STATIONS NDIR GAS ANALYZER, CHEMILUMINESCENCE 1991-01-08 to 1991-12-31

N: 52.92 S: 21.33 E: 180 W: -180

GTE
PEM West B DC-8 In-Situ Trace Gas Data 1 NASA DC-8 CHEMILUMINESCENCE, HPLC, DACOM, GAS CHROMATOGRAPHS 1994-01-26 to 1994-03-15

N: 90 S: -9.7 E: 180 W: -180

GTE
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Featured Nitrogen Oxides Observation Method: TROPOMI

The Tropospheric Monitoring Instrument (TROPOMI) is the single payload aboard ESA's Sentinel-5P spacecraft, providing daily measurements of cloud height and cover, aerosols, and trace gases such as nitrogen oxides.

Learn More About TROPOMI
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TROPOMI Near Real-Time Products

Near real-time atmospheric radiance and composition products from the European Space Agency TROPOspheric Monitoring Instrument (TROPOMI) are available through NASA’s Land, Atmosphere Near real-time Capability for Earth observation (LANCE).
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LANCE

Access NASA Earth observation data within three hours of a satellite observation through the Land, Atmosphere Near real-time Capability for Earth observation (LANCE).
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Carbon Monoxide

NASA offers an array of carbon monoxide data to aid in determining its role in atmospheric processes, pollution, and climate.

Nitrogen Oxides Data Tools

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