Global Atmospheric Composition

 What is the chemical  composition of the most remote background atmosphere?


The NASA funded Atmospheric Tomography project is a multiyear program to measure the chemical composition of the atmosphere of the most remote regions of the world. The flights include sampling from the surface to the tropopause, from the (almost) north pole to the (almost) south pole through the Pacific and Atlantic. As part of ATom, we (the Harvard QCLS group) have been measuring carbon dioxide, methane, carbon monoxide and nitrous oxide. 

We follow similar flight tracks each time (unless re-routing for weather or runway issues). We travel anti-clockwise in order to make use of the tailwinds on the long flight from New Zealand to Chile. 

ATom1 - August 2016

ATom2 - Febrary 2017

ATom3 - October 2017

ATom4 - May 2018.

ATom1      Blog PostsVideos

ATom2      Blog Posts, Videos, Media

ATom3      Blog PostsMedia

Published Data from ATom

ATom: Merged Atmospheric Chemistry, Trace Gases, and Aerosols (DOI: 10.3334/ORNLDAAC/1581); 


02/2017: NPR Radio (Morning Edition)

02/2017: WCAI (NPR Radio on Cape Cod and Islands)

02/2017: NASA produced video updates for ATom-2

08/2016: NASA produced video updates for ATom-1 on NASA Goddard YouTube Channel. Complete list of videos listed here

ATom1 Blog Posts:

08/02/2016:                      Departing for Cooler Climates

08/19/2016:                      Going back in Time

08/26/2016:                      Is there any such thing as remote clean air?

08/29/2016:                      Challenging Back Half

08/30/2016:                      Lessons learned


 © Roisin Commane 2018