Air Quality

Accurate early warnings of poor air quality are useful because they give people the option to reduce their risk of exposure to poor air by limiting outdoor activity at these times. Air quality forecasters use near real-time (NRT) data from NASA's Land, Atmosphere Near real-time Capability for EOS (LANCE) to improve some local and national air quality forecasts.

Potentially useful data sets:

  • Visible Infrared Imaging Radiometer Suite (VIIRS) (Suomi-NPP)
  • Moderate Resolution Imaging Spectroradiometer (MODIS) (Aqua/Terra) corrected reflectance and aerosol index
  • Atmospheric Infrared Sounder (AIRS) carbon monoxide (CO) (total column) and sulfur dioxide (SO2) (day and night)
  • Ozone Monitoring Instrument (OMI) aerosol optical depth, absorbing aerosol optical depth and aerosol index

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Air Quality India

Visualize NRT data related to Air Quality in Worldview

The skies over the Indo-Gangetic Plain — a river valley that includes parts of Pakistan, India, Nepal, and Bangladesh — are among the haziest in the world. Those four countries regularly come in near the bottom of annual rankings for air quality. As described in the Earth Observatory article, Seasons of Indian Air Quality, air quality varies throughout the year. This image shows a dust storm obscuring most land features. In October and November numerous agricultural fires from crop-burning cause large smoke plumes lingering downwind.


MODIS / Aqua

Product
(HTTPS download)
Description Browse Comments
MYD09GHK 10.5067/MODIS/MYD09GHK_NRT.006
L2G Surface Reflectance -Daily 500m
N/A Bands 1-4-3
MYD09GQK 10.5067/MODIS/MYD09GQK_NRT.006
L2G Surface Reflectance - Daily 250m
N/A Bands 1-4-3
MYD04_L2 10.5067/MODIS/MYD04_L2_NRT.061
L2 Aerosol, 5-Min Swath 3km
L2 Aerosol Browse N/A
MYDAODHD 10.5067/MODIS/MYDAODHD_NRT.061
L3 Value-added Aerosol Optical Depth
N/A N/A

MODIS / Terra

Product
(HTTPS download)
Description Browse Comments
MOD09GHK 10.5067/MODIS/MOD09GHK_NRT.006
L2G Surface Reflectance – Daily 500m
N/A Bands 1-4-3
MOD09GQK 10.5067/MODIS/MOD09GQK_NRT.006L2G
Surface Reflectance – Daily 250m
N/A Bands 1-4-3
MOD04_L2 10.5067/MODIS/MOD04_L2_NRT.061
L2 Aerosol, 5-Min Swath 10km
L2 Aerosol Browse N/A
MODAODHD 10.5067/MODIS/MODAODHD.NRT.061
L3 Value Added Aerosol Optical Depth
N/A N/A

MODIS / Combined

Product
(HTTPS download)
Description Browse Comments
MCDAODHD 10.5067/MODIS/MCDAODHD.NRT.061
L3 Value-added Aerosol Optical Depth
N/A N/A

AIRS / Aqua

Product
(HTTPS Download)
Description Volume (GB/day) Browse
AIRS2RET_NRT.006 L2 standard retrieval product using AIRS IR only

N/A N/A

OMI / Aura

Product
(HTTPS Download)
Description Browse
OMSO2NRTb L2 SO2 Total Column Swath 13x24 km N/A

MLS / Aura

Product
(HTTPS Download)
Description Browse
ML2CO_NRT.004 Carbon Monoxide (CO) MLS/Aura NRT L2 CO Mixing Ratio N/A
ML2SO2_NRT.004 Sulfur Dioxide (SO2) MLS/Aura NRT L2 SO2 Mixing Ratio N/A

Last Updated: Nov 9, 2018 at 12:30 PM EST