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Dust/Ash/Smoke Data Access and Tools

Dust, ash, and smoke data from NASA range from aerosol indexes to fire and thermal anomaly detections. Our datasets and tools help users find and integrate the data they need to track airborne particles, locate their sources, determine their downstream effects and other important facts.

Commonly Used Dust Score Data at a Glance

Very large dust storms lasting hours or days can be observed and tracked using satellite imagery. The amount of dust transported by these storms can be quantified using the Dust Score, which is calculated from data acquired by the Atmospheric Infrared Sounder (AIRS) instrument aboard NASA’s Aqua satellite. The AIRS Dust Score indicates the level of atmospheric aerosols in Earth’s atmosphere over the ocean. Dust is probable when the score is above 380, and higher scores indicate more certainty that dust is present. The numerical scale is a qualitative representation of the presence of dust in the atmosphere, an indication of where large dust storms may form, and the areas that may be affected.

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. For more information about the differences between NRT and Standard Science Products, please 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	Global	6 min, hourly, 3-hourly, 6-hourly	2016-present for NRT, 2002 for other	2,378 infrared channels in the 3.74 to 15.4 micron spectral range	Aqua	*AIRS	Observation	HDF-EOS

Dust/Ash/Smoke Datasets

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Dataset Sort descending	Version	Platform	Instrument	Temporal Extent	Spatial Extent	Spatial Resolution	Data Format
MERRA-2 avgM_2d_pm25_admin0, 2d, Single-Level, Country-Level Surface PM2.5 Monthly Mean Products V1 (M2_TMAX_PM25) at GES DISC	1	MERRA-2	NOT APPLICABLE	1980-01-01 to Present	N: 90 S: -90 E: 180 W: -180
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) at GES DISC	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 inst3_3d_gas_Nv: 3d,3-Hourly,Instantaneous,Model-Level,Assimilation,Aerosol Mixing Ratio Analysis Increments 0.625 x 0.5 degree V5.12.4 (M2I3NVGAS) at GES DISC	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) at GES DISC	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) at GES DISC	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) at GES DISC	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_aer_Nx: 2d,Monthly mean,Time-averaged,Single-Level,Assimilation,Aerosol Diagnostics 0.625 x 0.5 degree V5.12.4 (M2TMNXAER) at GES DISC	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 tavgU_2d_adg_Nx: 2d,diurnal,Time-averaged,Single-Level,Assimilation,Aerosol Diagnostics (extended) 0.625 x 0.5 degree V5.12.4 (M2TUNXADG) at GES DISC	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 tavgU_2d_aer_Nx: 2d,diurnal,Time-averaged,Single-Level,Assimilation,Aerosol Diagnostics 0.625 x 0.5 degree V5.12.4 (M2TUNXAER) at GES DISC	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
MISR Derived Case Study Data for Iceland Volcanic Eruptions (Eyjafjallajokull, Grimsvotn, Holuhraun) Including Geometric Plume Height and Qualitative Radiometric Particle Property Information	1	Terra	MISR	2010-04-15 to 2015-02-21			ASCII, PNG, JPEG, HDF5
MISR Derived Case Study Data for Kilauea Volcanic Eruptions Including Geometric Plume Height and Qualitative Radiometric Particle Property Information	1	Terra	MISR	2000-10-25 to 2018-08-01			ASCII, PNG, JPEG, HDF5
MODIS/Aqua Aerosol 5-Min L2 Swath 10km	6.1	Aqua	MODIS	2002-07-04 to Present	N: 90 S: -90 E: 180 W: -180	10 Kilometers x 10 Kilometers	HDF-EOS
MODIS/Aqua Aerosol 5-Min L2 Swath 10km - NRT	6.1NRT	Aqua	MODIS	2017-10-20	N: 90 S: -90 E: 180 W: -180	10 Kilometers x 10 Kilometers	HDF-EOS
MODIS/Aqua Aerosol 5-Min L2 Swath 3km	6.1	Aqua	MODIS	2002-07-04 to Present	N: 90 S: -90 E: 180 W: -180		HDF-EOS
MODIS/Aqua Aerosol 5-Min L2 Swath 3km - NRT	6.1NRT	Aqua	MODIS	2017-10-20	N: 90 S: -90 E: 180 W: -180	3 Kilometers x 3 Kilometers	HDF-EOS
MODIS/Aqua Aerosol Cloud Water Vapor Ozone 8-Day L3 Global 1Deg CMG	6.1	Aqua	MODIS	2002-07-04 to Present	N: 90 S: -90 E: 180 W: -180	1 Decimal Degrees x 1 Decimal Degrees	HDF-EOS
MODIS/Aqua Aerosol Cloud Water Vapor Ozone Daily L3 Global 1Deg CMG	6.1	Aqua	MODIS	2002-07-04 to Present	N: 90 S: -90 E: 180 W: -180	1 Decimal Degrees x 1 Decimal Degrees	HDF-EOS
MODIS/Aqua Aerosol Cloud Water Vapor Ozone Monthly L3 Global 1Deg CMG	6.1	Aqua	MODIS	2002-07-01 to Present	N: 90 S: -90 E: 180 W: -180	1 Decimal Degrees x 1 Decimal Degrees	HDF-EOS
MODIS/Aqua L3 Value-added Aerosol Optical Depth - NRT	6.1NRT	Aqua	MODIS	2017-10-20	N: 90 S: -90 E: 180 W: -180	0.5 Decimal Degrees x 0.5 Decimal Degrees	HDF-EOS
MODIS/Terra Aerosol 5-Min L2 Swath 10km	6.1	Terra	MODIS	2000-02-24 to Present	N: 90 S: -90 E: 180 W: -180		HDF-EOS
MODIS/Terra Aerosol 5-Min L2 Swath 10km - NRT	6.1NRT	Terra	MODIS	2017-10-11	N: 90 S: -90 E: 180 W: -180	10 Kilometers x 10 Kilometers	HDF-EOS
MODIS/Terra Aerosol 5-Min L2 Swath 3km	6.1	Terra	MODIS	2000-02-24 to Present	N: 90 S: -90 E: 180 W: -180	3 Kilometers x 3 Kilometers	HDF-EOS
MODIS/Terra Aerosol 5-Min L2 Swath 3km - NRT	6.1NRT	Terra	MODIS	2017-10-11	N: 90 S: -90 E: 180 W: -180	3 Kilometers x 3 Kilometers	HDF-EOS
MODIS/Terra Aerosol Cloud Water Vapor Ozone 8-Day L3 Global 1Deg CMG	6.1	Terra	MODIS	2000-02-18 to Present	N: 90 S: -90 E: 180 W: -180	1 Decimal Degrees x 1 Decimal Degrees	HDF-EOS
MODIS/Terra Aerosol Cloud Water Vapor Ozone Daily L3 Global 1Deg CMG	6.1	Terra	MODIS	2000-02-24 to Present	N: 90 S: -90 E: 180 W: -180	1 Decimal Degrees x 1 Decimal Degrees	HDF-EOS

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AIRS Near Real-Time Data

Near real-time 3D atmospheric data from the Atmospheric Infrared Sounder (AIRS) instrument are available through NASA's Land, Atmosphere Near real-time Capability for Earth observation (LANCE).

This image from the AIRS instrument shows surface air temperature over North America and the Arctic on December 22nd, 2022.

Contributions of NASA's AIRS Instrument Continue with CrIS, ATMS

Next-generation instruments aboard Joint Polar Satellite System spacecraft provide continuity to the AIRS project that began in 2002.

11 MIN READ

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Access AIRS data from GES DISC via OPeNDAP

Learn how to access and visualize Atmospheric Infrared Sounder (AIRS) grid data from NASA's Goddard Earth Sciences Data and Information Services Center (GES DISC) in Python.

A destroyed amusement park wrecked by Hurricane Sandy

LANCE Data Contribute to the Successful Forecast of Hurricane Sandy

A recent study reviewed the impact of satellite data in accurately forecasting the path of Hurricane Sandy. The study showed that AIRS NRT data from NASA’s polar-orbiting satellites significantly improve these predictions.

6 MIN READ

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