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Instrument

ATHOS
Airborne Tropospheric Hydrogen Oxides Sensor

The Airborne Tropospheric Hydrogen Oxides Sensor (ATHOS) is an in situ airborne sensor developed by Penn State University. ATHOS uses a laser-induced fluorescence (LIF) technique to measure hydroxide (OH) and hydroperoxyl (HO2) in the atmosphere. ATHOS operates near the 308 nm wavelength, has a pulse repetition frequency of 3 kHz, and has a typical time resolution of 20-30 s. It was designed to be equipped on NASA’s DC-8 aircraft and can collect measurements of OH and HO2 in clear sky and light cloud conditions.

Image of the ATHOS inlet on the DC-8
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)

Instrument Details

Meter/Analyzer
Earth Science > Atmosphere > Atmospheric Chemistry > Nitrogen Compounds > Nitric Oxide
Earth Science > Atmosphere > Atmospheric Chemistry > Hydrogen Compounds > Hydroxyl
Earth Science > Atmosphere > Atmospheric Chemistry > Hydrogen Compounds > Hydroperoxy
Earth Science > Atmosphere > Atmospheric Chemistry > Hydrogen Compounds
Earth Science > Atmosphere > Atmospheric Chemistry
Lower Stratosphere, Troposphere
20-30 s
Point
973 THz
https://doi.org/10.1023/B:JOCH.0000021036.53185.0eExternal Link
  • William H. Brune, David Miller

  • William H. Brune

  • Penn State University

  • NSF, NASA

  • Overview PublicationExternal Link

PEM

Pacific Exploratory Mission

1991—1999
Pacific Ocean
view all deployment dates
4 Deployments
· 0 Data Products
SOLVE

SAGE III Ozone Loss and Validation Experiment

1999—2003
Arctic, Kiruna, Sweden
view all deployment dates
2 Deployments
· 32 Data Products

Filter data products from this instrument by specific campaigns, platforms, or formats.

Campaigns
CAMPAIGNS
Platforms
PLATFORMS
Formats
FORMATS
10.3334/ORNLDAAC/1709External Link
10.3334/ORNLDAAC/1669External Link
10.5067/ASDC/SUBORBITAL/SONEX_TraceGas_AircraftInSitu_DC8_Data_1External Link
10.5067/ASDC/SUBORBITAL/SONEX_Merge_DC8_Data_1External Link