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Instrument

IU-FAGE
Indiana University - Fluorescence Assay by Gas Expansion

The Indiana University Fluorescence Assay by Gas Expansion (IU-FAGE) is a ground-based sensor used to measure tropospheric hydroxyl (OH) and hydroperoxy (HO2) radicals. It detects OH radicals at 308 nm through laser-induced fluorescence (LIF) after ambient air is expanded to low pressure. IU-FAGE measures HO2 indirectly as OH by titration with nitric oxide (NO) inside the fluorescence cell. It can detect both OH and HO2 with a signal-to-noise ratio of 1 and an averaging time of 5 minutes.

NASA's DC-8 flying laboratory passes Antarctica's tallest peak, Mount Vinson, on Oct. 22, 2012, during a flight over the continent to measure changes in the massive ice sheet and sea ice. Credit: NASA/Michael Studinger (Photography courtesy NASA Images)

Overview

Instrument Details

Optical/Photon
Earth Science > Atmosphere > Atmospheric Chemistry > Hydrogen Compounds > Hydroxyl
Earth Science > Atmosphere > Atmospheric Chemistry > Hydrogen Compounds > Hydroperoxy
Troposphere
5 min
Point
973.4 THz
https://doi.org/10.5194/acp-8-321-2008External Link

  • Sebastien Dusanter

  • Sebastien Dusanter

  • Indiana University

  • Currently unavailable

  • Currently unavailable

    • data center outside NASA

Instrument Operation

CalNex

California Research at the Nexus of Air Quality and Climate Change

2010
California
view all deployment dates
1 Deployment
· 0 Data Products

Data Products