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ATom

Black Carbon Aerosols from ATom

The SP2 instrument.

The NOAA Single Particle Soot Photometer (SP2) is a laser-induced incandescence instrument primarily used for measuring the black carbon mass content of individual particles.

Black carbon concentrations were measured over remote regions of the Earth during NASA's Atmospheric Tomography (ATom) Mission.

Atmospheric Water Vapor Data from ATom

The DC-8 aircraft.

A NASA DC-8 taxis on the runway at Thule Air Base in Greenland. Credits: NASA/Kent Schiffer

Data collected by the Diode Laser Hygrometer (DLH) instrument during the Atmospheric Tomography (ATom) Mission is now available.

Hydrogen Oxide Data from ATom

The DC-8 cockpit.

View of the DC-8 cockpit in flight. Credit: NASA/Michael Prather

Data collected by the Airborne Tropospheric Hydrogen Oxides Sensor (ATHOS) instrument during the Atmospheric Tomography (ATom) Mission is now available.

Aerosol Data from the ATom Mission

The ATom aircraft

The ATom aircraft prepares to depart from Punta Arenas in southern Chile on October 14, 2017. During ATom-3, the science team flew over Antarctica and below the ozone hole before continuing on their journey north over the Atlantic Ocean to Greenland and returning to California.

Data collected by the Aerosol Microphysical Properties (AMP) instrument during the Atmospheric Tomography (ATom) Mission is now available.

Atmospheric Photolytic Rates from ATom

Photolysis frequency (J-value).

An image of photolysis frequency (J-value) for J-O1D under cloudy conditions from the GSFC GMI model.

Atmospheric photolytic rates for ozone and nitrogen dioxide were estimated using nine global chemistry-climate or chemistry-transport models.

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