Aura is already providing the first-ever daily, direct global measurements of low altitude or tropospheric ozone and many other pollutants that affect our air quality. Moreover, Aura delivers its results with unprecedented clarity over a region. The instruments onboard will help scientists monitor pollution production and transport around the world.

Aura tropospheric NO2 data are available in Google Earth, .hdf, and .txt format can be found here for daily and monthly images. Click on one of the icons below the montlhly images for the format of interest.

Aura tropospheric NO2 and aerosol data will be available in educational lessons through the Earth Exploration Toolbook and MY NASA DATA.

SO2 Emissions from Smelters The Peruvian copper smelters are among the world's largest industrial point sources of sulfur dioxide (SO2), and are among the most polluting. + More

South Korea gets rare yellow snowfall South Koreans were treated to a rare weather phenomenon on Monday when yellow snow fell in the capital and elsewhere across the country. + More

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Stratospheric Ozone Aura's MLS instrument (Microwave Limb Sounder) is collecting daily data about the physical and chemical processes that influence the health of the protective ozone by measuring other chemicals in the atmosphere that affect ozone chemistry worldwide. MLS data provide the most complete chemical measurements available to understand the ozone layer and its predicted recovery. Find up to date information about the ozone hole. + Go to Ozone Hole Watch.

'Double Record Breaker' 2006 Antarctic Ozone Hole seen by MLS Low temperatures in September 2006 increased by the longevity of 'active chlorine', leading to a record area and depth of the ozone hole. + More

OMI Measurement of Nitrogen Dioxide This image from Aura's OMI instrument shows the total column amount of nitrogen dioxide, a precursor to the formation of tropospheric ozone. + More

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NASA Satellite Eyes Atmosphere to Improve Pollution and Climate Forecasting Thanks to the latest sophisticated, satellite-based instruments, local and regional air pollution and their sources can now be observed closely from space. + More

MLS Water Vapor and Pressure Time-pressure sections of zonally averaged water vapor mixing ratio, shown as the deviation from the time-mean profile. + More

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