The Alpha Jet Atmospheric eXperiment (AJAX) is a partnership between NASA's Ames Research Center and H211, L.L.C., facilitating routine in-situ measurements over California, Nevada, and the coastal Pacific in support of satellite validation. The standard payload complement includes rigorously-calibrated ozone (O3), formaldehyde (HCHO), carbon dioxide (CO2), and methane (CH4) mixing ratios, as well as meteorological data including 3-D winds. Multiple vertical profiles (to ~8.5 km) can be accomplished in each 2-hr flight. The AJAX project has been collecting trace gas data on a regular basis in all seasons for over a decade, helping to assess satellite sensors' health and calibration over significant portions of their lifetimes, and complementing surface and tower-based observations collected elsewhere in the region. AJAX supports NASA's Orbiting Carbon Observatory (OCO-2/3) and Japan's GOSAT and GOSAT-2, and collaborates with many other research organizations (e.g. CARB, NOAA, USFS, EPA). AJAX celebrated its 200th science flight in 2016, and previous studies have investigated topics as varied as stratospheric-to-tropospheric transport, forest fire plumes, atmospheric river events, long-range transport of pollution from Asia to the western US, urban outflow, and emissions from gas leaks, oil fields, and dairies.
|Data Center(s):||NASA/LARC/SD/ASDC||Instrument(s):||2B Technologies|
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Derived geophysical parameters
|Project Short Name||Campaigns||Project Dates|
|AJAX||No campaigns listed.||No dates provided.|
|Coverage Type||Zone Identifier||Geometry||Granule Representation|
|Coverage Type||Vertical Spatial Domains||Granule Representation|
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NASA Ames Research Center
Atmospheric Science Branch
Moffett Field, CA 94035
NASA Langley Atmospheric Science Data Center
User and Data Services
NASA Langley Research Center
Hampton, VA 23681-2199
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