Instrument

DOAS
Differential Optical Absorption Spectrometers

The Differential Optical Absorption Spectroscopy (DOAS) is a style of instrument used for measuring trace gases in the atmosphere. The DOAS technique is used to identify and quantify trace gases using their narrow band absorptions. DOAS is a remote sensing spectrometer. It has a high temporal resolution. The DOAS technique has been in use since the 1980’s.

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

Measurement Type

Spectrometer/Radiometer

Measurement/Variables

Earth Science > Atmosphere > Atmospheric Chemistry > Carbon And Hydrocarbon Compounds > Formaldehyde

Earth Science > Atmosphere > Atmospheric Chemistry > Trace Gases/trace Species

Earth Science > Atmosphere > Atmospheric Chemistry > Oxygen Compounds > Ozone

Earth Science > Atmosphere > Atmospheric Chemistry > Nitrogen Compounds > Nitrogen Dioxide

Earth Science > Atmosphere > Atmospheric Chemistry > Sulfur Compounds > Sulfur Dioxide

Earth Science > Atmosphere > Atmospheric Chemistry > Nitrogen Compounds > Nitrogen Oxides

Earth Science > Atmosphere > Atmospheric Chemistry > Halocarbons And Halogens > Bromine Monoxide

Vertical Measurement Regions

Troposphere

Temporal Resolution

10 ms

Spatial Resolution

This data will be added in future versions

Measurement Frequency

1300 THz - 1500 THz

Calibration Details

https://doi.org/10.1117/12.463920

Online Information

Lead Investigator
Jochen Peter Stutz, Klaus Pfeilsticker
Technical Contact
Jochen Peter Stutz
Instrument Maker
UCLA
Funding Source
Currently unavailable
Overview Publications
Currently unavailable
Repositories
- Atmospheric Science Data Center (ASDC)
- Goddard Earth Sciences Data and Information Services Center (GES DISC)