Abstract

Vibration-rotation absorptions in high-resolution Fourier-transform infrared spectra from a 246-m horizontal path were used to derive local concentrations of trace gases at the Alpine observatory at the Zugspitze summit, Germany (2964 m above sea level). The analysis was performed by using the line-by-line nonlinear least-squares spectral fitting software, sfit, based on the 1992 hitran line parameter compilation. (hitran is a high-resolution transmission molecular absorption database.) A comparison to in situ measurements shows an agreement of better than 4.3% for the species CO, CO2, and CH4. Using the same spectrometer and analysis software, we obtained the vertical column density of N2O together with an adjusted vertical volume mixing ratio distribution. This translates to a local N2O concentration at the altitude of Zugspitze that agrees with the horizontal path-derived value to within 1%.

© 1997 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Infrared spectroscopic measurements of tropospheric trace gases

Curtis P. Rinsland and Aaron Goldman
Appl. Opt. 31(33) 6969-6971 (1992)

Photoacoustic spectroscopy on trace gases with continuously tunable CO2 laser

Philippe Repond and Markus W. Sigrist
Appl. Opt. 35(21) 4065-4085 (1996)

Acousto-optic measurements of tropospheric nitrogen dioxide column density by solar spectroscopy

A. Y. S. Cheng and M. H. Chan
Appl. Opt. 44(26) 5536-5543 (2005)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (3)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Tables (1)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription