| Duration | June-July, 2001 |
| Platform | Trans-Siberian Railway |
| Locations | Moscow to Khabarovsk, Russia |
The seventh Trans-Siberian Observations Into the Chemistry of the Atmosphere (TROICA-7) expedition was conducted from a railway car traveling along 17,000 km of the fully-electrified trans-Siberian railway between Moscow and Khabarovsk, Russia. This campaign was a collaboration between NOAA/CMDL, the Max Planck Institute for Chemistry (Mainz, Germany), and the Russian Institute of Atmospheric Physics (Moscow). The primary objective for ACATS-IV was to measure halocarbon and greenhouse gases along the trans-Siberian railway, creating a database to which future TROICA measurements of these gases can be compared. NOAA/CMDL participation in TROICA-7 produced the first extensive set of halocarbon measurements in Russia by American scientists.
Visit the TROICA-7 photo gallery.
For other details, visit the Max Planck TROICA home page.

Barrow, Alaska
Trinidad Head, California
Mauna Loa, Hawaii
American Samoa
South Pole
Summit, Greenland
Seminars
Global Monitoring Division Review