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Air Quality

AIRS data have been used to track propagation of toxic gases like Carbon Monoxide (CO) from massive fires; accurate early warnings of such pollution spikes 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 NRT data from LANCE to improve some local and national air quality forecasts.

Potentially useful data sets: MODIS Aerosol, AIRS CO (total column) and Sulfur Dioxide (day and night), OMI Aerosol Optical Depth, Absorbing Aerosol Optical Depth and Aerosol Index.

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Natural-color images of northeastern China on January 14, 2013. The image shows extensive haze, low clouds, and fog over the region. The brightest areas tend to be clouds or fog, which have a tinge of gray or yellow from the air pollution. Other cloud-free areas have a pall of gray and brown smog that mostly blots out the cities below. In areas where the ground is visible, some of the landscape is covered with lingering snow from storms in recent weeks. Read more at NASA's Earth Observatory.
 

Downloadable NRT data related to Air Quality

MODIS / Aqua

Product
(FTP download link)
Description
(Global Master Change Directory link)
Volume (GB/day)BrowseComments
MYD09GHKL2G Surface Reflectance – Daily 500m18.27N/ABands 1-4-3
MYD09GQKL2G Surface Reflectance – Daily 250m25.48N/ABands 1-4-3
MYD04_L2L2 Aerosol, 5-Min Swath 10km0.16L2 Aerosol BrowseN/A
MYDAODHDL3 Value-added Aerosol Optical Depth0.001N/AN/A

MODIS / Terra

Product
(FTP download link)
Description
(Global Master Change Directory link)
Volume (GB/day)BrowseComments
MOD09GHKL2G Surface Reflectance – Daily 500m18.34N/ABands 1-4-3
MOD09GQKL2G Surface Reflectance – Daily 250m25.31N/ABands 1-4-3
MYD04_L2L2 Aerosol, 5-Min Swath 10km0.16L2 Aerosol BrowseN/A
MYDAODHDL3 Value-added Aerosol Optical Depth0.001N/AN/A

MODIS / Combined

Product
(FTP download link)
Description
(Global Change Master Directory link)
Volume
(GB/day)
BrowseComments
MCDAODHDL3 Value-added Aerosol Optical Depth0.001N/AN/A

AIRS / Aqua

Product
(FTP download link)
Description
(Global Master Change Directory link)
Volume (GB/day)Browse
AIRX2RET_NRTL2 standard retrieval product using AIRS IR and AMSUN/AN/A

OMI / Aura

Product
(FTP download link)
Description
(Global Master Change Directory link)
Volume (GB/day)Browse
OMSO2NRTbL2 Sulphur Dioxide (SO2) Total Column Swath 13x24 km N/AN/A

MLS / Aura

Product
(FTP download link)
Description
(Global Master Change Directory link)
Volume (GB/day)Browse
ML2CO_NRT.003Carbon Monoxide (CO) MLS/Aura NRT L2 CO Mixing Ratio0.03N/A
ML2SO2_NRT.003Sulfur Dioxide (SO2) MLS/Aura NRT L2 SO2 Mixing Ratio0.02N/A