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Observational data are the foundation upon which our knowledge of atmospheric composition, trends and processes are based. These data also provide the drivers for continued improvement and development of Earth system models. ACOM has a long heritage of making high quality measurements of atmospheric composition in collaboration with members of the wider atmospheric chemistry community. Measurements are made in situ from aircraft or at ground sites, or via remote sensing techniques involving satellite- and ground-based instrumentation.




















Field Campaigns



See a list of completed observation projects undertaken in the field (earliest 1992).











Community-Requestable Instrumentation



In collaboration with NSF NCAR's EOL, ACOM scientists make available to the community a group of requestable instruments, given in the table below. 











In-Situ/Airborne Observations



Radiation and Actinic Flux

Core Atmospheric Tracers (CO, CO2, CH4, N2O, H2O, O3)

Measurements of Atmospheric Reactive Gases

NOx and Ozone Measurements

VOC Measurements











Laboratory Kinetics











Remote Sensing



High Resolution Infrared Spectroscopy

Measurements Of Pollution In The Troposphere (MOPITT)

Pandora

Stratosphere Troposphere Response using Infrared Vertically-resolved light Explorer (STRIVE)











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NOx





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1st Workshop (Kathmandu 2013)

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5th Workshop (Dhaka 2023)

6th Workshop (Bali 2025)

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ACOM | Atmospheric Chemistry Observations & Modeling

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This material is based upon work supported by the NSF National Center for Atmospheric Research, a major facility sponsored by the U.S. National Science Foundation and managed by the University Corporation for Atmospheric Research. Any opinions, findings and conclusions or recommendations expressed in this material do not necessarily reflect the views of the U.S. National Science Foundation.







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