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Sulfur Dioxide Data Access and Tools

Commonly Used Sulfur Dioxide Data at a Glance

The following sections will help guide you to 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 EOS (LANCE). While not intended for scientific research, NRT data are good resources for monitoring ongoing or time-critical events. To learn more about the difference between NRT and Standard Science Products, see Near Real Time versus Standard Products.

Spatial Resolution	Spatial Coverage	Temporal Resolution	Temporal Coverage	Spectral Resolution	Satellite/ Platform	Name (Sensor, Model, etc.)	Observation, Model, or Reanalysis	File Format
50 km x 50 km	Global	6 minutes	2002-2023	2,378 infrared channels in the 3.74-15.4 micron spectral range	Aqua	*AIRS	Observation	HDF-EOS
13 km x 24 km, 0.25°, 1°	Global	98 minutes, Daily	2004-present	1.0-0.45 nm Full Width and Half Maximum (FWHM)	Aura	Ozone Monitoring Instrument (OMI)	Observation	HDF-EOS5
7.5 km x 3 km	Global	101 minutes, Daily	2018	250-420 nm	NASA/NOAA Suomi National Polar-orbiting Partnership (Suomi NPP)	Ozone Mapping and Profiler Suite (OMPS)	Observation	netCDF-4
7 x 3.5 km for all spectral bands, with the exception of the UV1 band (7 x 28 km²) and SWIR bands (7 x 7 km²)	Global	Daily	2017-present	270 nm-2.3 µm, 0.55 nm	ESA Sentinel-5P	TROPOspheric Monitoring Instrument (TROPOMI)	Observation	netCDF
165 km x 3 km	Near-global (-82º to +82º latitude)	15 minutes, Twice daily [day, night]	2021-present	190 and 240 GHz	Aura	*MLS	Observation	HDF-EOS5
0.5° x 0.625°	Global	Hourly, 3 hourly, Monthly	1980-present	N/A	N/A	MERRA-2	Reanalysis	netCDF
0.25º x 0.25°	Global	15 min, Hourly	Daily 5-day forecast	N/A	N/A	GEOS-CF	Model	netCDF
0.25º x 0.312°	Global	3-hourly	Near-real time assimilation (DAS), 10-day forecast at 00z, and 5-day forecast at 12z	N/A	N/A	GEOS FP	Analysis	netCDF
Point measurements	Global	Periodic flights occurred during each deployment	2016-2018	varies	Airborne Field Campaign	Atmospheric Tomography Mission (ATom) campaign with varying instruments	Observation	netCDF

Sulfur Dioxide Datasets

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Dataset Sort descending	Version	Platform	Instrument	Temporal Extent	Spatial Extent	Spatial Resolution	Data Format
FIREX-AQ DC-8 In-Situ Trace Gas Data	1	NASA DC-8	TOGA, WAS, ION CHROMATOGRAPHS, LICOR GAS EXCHANGE SYSTEM, DACOM, CAMS, GC-MS, SPECTROMETERS, LGR, CHEMILUMINESCENCE, CIMS, PTR-MS, CIT-ToF-CIMS, ACES	2019-07-15 to 2019-09-05	N: 60 S: 15 E: -75 W: -135		ICARTT
FIREX-AQ DC-8 Remotely Sensed Trace Gas Data	1	NASA DC-8	DOAS	2019-07-16 to 2019-09-07	N: 60 S: 15 E: -75 W: -135		NetCDF-3
First ISCCP Regional Experiment (FIRE) Atlantic Stratocumulus Transition Experiment (ASTEX) MAGE Oceanus Sulfur in the Air Data	1	Ships	SPECTROMETERS, MASS SPECTROMETERS, GAS CHROMATOGRAPHS	1992-06-03 to 1992-06-18			ASCII
First ISCCP Regional Experiment (FIRE) Atlantic Stratocumulus Transition Experiment (ASTEX) United Kingdom Meteorological Office (UKMO) C-130 Aircraft Data	1	C-130	PYRANOMETERS, PRT, HYGROMETERS, PMS, GUST PROBES, CLOUD LIQUID WATER PROBE, RADIOMETERS, THERMOMETERS	1992-05-30 to 1992-06-23			Binary
First ISCCP Regional Experiment (FIRE) Atlantic Stratocumulus Transition Experiment (ASTEX) University of Washington C-131A Discrete Data	1	C-131A	SPECTROMETERS, GAS CHROMATOGRAPHS, ION CHROMATOGRAPHS, THERMOMETERS	1992-06-02 to 1992-06-27			ASCII
Global Fire Emissions Database, Version 4.1 (GFEDv4)	4.1	MODELS, TRMM, Terra, ERS-1	Computer, VIIRS, MODIS, ATSR	1995-06-01 to 2016-12-31	N: 90 S: -90 E: 180 W: -180		multiple
JPSS-1 CrIS Level 1B Principal Component Analysis / Rapid Event Detection V3.0 (SNDRJ1CrISL1BPCARED)	3.0	NOAA-20	CrIS	2018-01-05 to Present	N: 90 S: -90 E: 180 W: -180	14 Kilometers x 14 Kilometers
KORUS-AQ Aircraft Merge Data Files	1	NASA DC-8	Computer	2016-04-24 to 2016-06-21	N: 61.32 S: 30.1 E: 180 W: -180		ICARTT
KORUS-AQ Ancillary Model Data Products	1	GEOS-Chem, FLEXPART, CAM-chem, WRF		2016-04-30 to 2016-06-11	N: 67 S: 25 E: 180 W: -180		NetCDF-4, ICARTT
KORUS-AQ DC-8 Aircraft In Situ Trace Gas Data	1	NASA DC-8	LI-6252, GC-MS, TD-LIF, DACOM, CAMS, 4STAR, CIMS, CIT-ToF-CIMS, ACES, CHEMILUMINESCENCE, PTR-MS	2016-04-16 to 2016-06-21	N: 67 S: 25 E: 180 W: -180		ICARTT
KORUS-AQ Miscellaneous Data	1	UMD Cessna	GPS, LGR CRDS, TECO 43C, Picarro G2401, AETHALOMETER, PSAP	2016-04-30 to 2016-06-13	N: 38 S: 36.67 E: 115.13 W: 114.26		ICARTT
KORUS-AQ Research Vessel (R/V) JangMok Ship Data	1	R/V JangMok	Thermo Scientific Ozone Analyzer, Thermo Scientific NOx Analyzer, Thermo Scientific CO Analyzer, Thermo Scientific SO2 43i Analyzer, WIND MONITOR, GPS	2016-05-20 to 2016-06-06	N: 35.62 S: 34.19 E: 129.66 W: 125.37		ICARTT
LISTOS Bayonne Ground Site Data	1	GROUND STATIONS	GAS SENSORS	2018-06-01 to 2019-05-23	N: 45 S: 35 E: -70 W: -80		ICARTT
LISTOS Bronx Pfizer Ground Site Data	1	GROUND STATIONS	HPLC, GAS SENSORS	2018-01-01 to 2018-11-13	N: 45 S: 35 E: -70 W: -80		ICARTT
LISTOS Ground Data at Miscellaneous Ground Sites	1	GROUND STATIONS	GAS SENSORS	2018-04-30 to 2018-10-01	N: 45 S: 35 E: -70 W: -80		ICARTT
LISTOS New Haven Ground Site Data	1	GROUND STATIONS	GAS SENSORS	2018-05-01 to 2019-01-23	N: 45 S: 35 E: -70 W: -80		ICARTT
LISTOS Queens College Ground Site Data	1	GROUND STATIONS	GAS SENSORS, HPLC	2018-04-30 to 2019-06-14	N: 45 S: 35 E: -70 W: -80		ICARTT
LISTOS University of Maryland Cessna Aircraft In-Situ Data	1	UMD Cessna	GPS, OZONE SENSOR, GAS SENSORS, CRDS, TSI-3563 Neph, AETHALOMETER, PSAP, GC-MS	2017-05-17 to 2019-07-29	N: 45 S: 35 E: -70 W: -80		ICARTT
LISTOS Yale Coastal Ground Site Data	1	GROUND STATIONS	AETHALOMETER, GAS SENSORS	2018-07-01 to 2019-08-01	N: 45 S: 35 E: 75 W: -80		ICARTT
LMOS Zion Ground Site Data	1	GROUND STATIONS	CIT-ToF-CIMS, GAS SENSORS, PYRANOMETERS, SPECTROMETERS, CEILOMETERS, APS, SMPS, SODAR, GC-MS, OC-EC Analyzer	2017-05-16 to 2017-06-24	N: 46 S: 40 E: 95 W: -95		ICARTT, NetCDF-3, HDF5
Low Cost Sensors AQ RAMP Data	1	RAMP		2017-01-01 to Present	N: 40.75 S: 40.29 E: -79.82 W: -80.32		ICARTT, PDF
MERRA-2 inst3_3d_aer_Nv: 3d,3-Hourly,Instantaneous,Model-Level,Assimilation,Aerosol Mixing Ratio 0.625 x 0.5 degree V5.12.4 (M2I3NVAER)	5.12.4	MERRA-2	NOT APPLICABLE	1980-01-01 to Present	N: 90 S: -90 E: 180 W: -180	0.625 Decimal Degrees x 0.5 Decimal Degrees
MERRA-2 tavg1_2d_adg_Nx: 2d,1-Hourly,Time-averaged,Single-Level,Assimilation,Aerosol Diagnostics (extended) 0.625 x 0.5 degree V5.12.4 (M2T1NXADG)	5.12.4	MERRA-2	NOT APPLICABLE	1980-01-01 to Present	N: 90 S: -90 E: 180 W: -180	0.625 Decimal Degrees x 0.5 Decimal Degrees
MERRA-2 tavg1_2d_aer_Nx: 2d,1-Hourly,Time-averaged,Single-Level,Assimilation,Aerosol Diagnostics 0.625 x 0.5 degree V5.12.4 (M2T1NXAER)	5.12.4	MERRA-2	NOT APPLICABLE	1980-01-01 to Present	N: 90 S: -90 E: 180 W: -180	0.625 Decimal Degrees x 0.5 Decimal Degrees
MERRA-2 tavgM_2d_adg_Nx: 2d,Monthly mean,Time-averaged,Single-Level,Assimilation,Aerosol Diagnostics (extended) 0.625 x 0.5 degree V5.12.4 (M2TMNXADG)	5.12.4	MERRA-2	NOT APPLICABLE	1980-01-01 to Present	N: 90 S: -90 E: 180 W: -180	0.625 Decimal Degrees x 0.5 Decimal Degrees

Featured Sulfur Dioxide Observation Method: OMPS

The Ozone Mapping and Profiler Suite (OMPS) aboard the joint NASA/NOAA Suomi National Polar-orbiting Partnership (Suomi NPP) satellite tracks the health of Earth's ozone layer and measures the concentration of atmospheric ozone. The NOAA-20 and NOAA-21 satellites are also equipped with the instrument. Total column sulfur dioxide data from OMPS are available on a near real-time basis.

Earthdata graphic identifier on top of map of Earth and binary code

OMPS Near Real-Time Data

Near real-time Ozone Mapping and Profiler Suite (OMPS) data products include total column ozone, total column sulfur dioxide (SO2), vertical ozone profile swath, and aerosol index.

Ozone Mapping And Profiler Suite (OMPS) SIPS

OMPS SIPS is responsible for processing, reprocessing, production and general assessment of Suomi NPP VIIRS OMPS Nadir products.

An artist's conception of Aura's OMI instrument scanning the atmosphere

OMPS, TROPOMI Instruments Set to Continue OMI's Long-Term Data Record

Data from the next-generation Instruments will help atmospheric scientists advance air quality measurements and standards.

20 MIN READ

Suomi-NPP images from August 17, 2018 showing the new OMPS PyroCumuloNimbus AI product

New OMPS Product Provides a Better View of High-Aerosol Events

The new PyroCumuloNimbus product for the Ozone Mapping and Profiler Suite (OMPS) makes it easier to track and analyze high concentrations of aerosols from wildfires and similar events.

4 MIN READ

Sulfur Dioxide Data Tools

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