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Comparison of column abundances from three infrared spectrometers during AASE II
Comparison of column abundances from three infrared spectrometers during AASE II
- Source :
- Geophysical Research Letters. 21:2591-2594
- Publication Year :
- 1994
- Publisher :
- American Geophysical Union (AGU), 1994.
-
Abstract
- Three Fourier transform infrared (FTIR) spectromenters were based on board the NASA DC-8 during the second Airborne Arctic Stratospheric Expedition (AASE II) in 1992. Two FTIRs used solar absorption and one used thermal emission. We compare over 2000 measurements from these 3 FTIRs, on 12 DC-8 flights, for closely coincident air masses and times, both inside and outside the polar vortex. In the majority of cases the offset biases are quite small, in the range 1-4%, and comparable to the absolute precisions expected. In most cases the rms scatter is in the range 4-11%; this scatter is unlikely to be geophysical, but rather is probably instrumental or analytical in origin.
Details
- ISSN :
- 00948276
- Volume :
- 21
- Database :
- OpenAIRE
- Journal :
- Geophysical Research Letters
- Accession number :
- edsair.doi...........8d47263464f1c837fa031ae76eb88bc9
- Full Text :
- https://doi.org/10.1029/94gl01173