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Greenhouse Gases Measured from Instrumented Communication Towers

Submitted by ORNL DAAC Staff on
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The communication tower at the Wessington, South Dakota site. This site was instrumented from January of 2017 to September of 2019.

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Level 1 atmospheric greenhouse gas concentrations are available for towers across the central and eastern USA.

ATom Compiles Flask Data from 2009 to 2018

Submitted by ORNL DAAC Staff on
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Horizontal (left) and vertical (right) distribution of airborne flask sample locations identified as being of stratospheric origin. Thin dashed black lines on the map illustrate the flight tracks of all 9 campaigns of the 3 airborne projects. Symbols indicate the campaigns during which the stratospheric samples were collected, and colors show the potential temperature at which the sample was taken.

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A new dataset from the Atmospheric Tomography Mission compiles measurements of mean age of air.

New Instrument Data From ATom

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The UCATS system is three different instruments in one enclosure: a two-channel chromatograph with electron capture detectors (one measures N2O and SF6, the other measures CH4, H2 and CO), a tunable diode laser instrument for H2O, and a dual-beam O3 photometer.

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A new dataset was collected using the Unmanned Aircraft Systems (UAS) Chromatograph for Atmospheric Trace Species (UCATS).