Study of Earth atmosphere components by Laser Spectroscopy

Authors

  • Nazer Dayob
  • Jamal Said
  • Sawsan mayya

Abstract

The aim of this work is to measure concentration of some atmosphere components

(CO2, NH3, O3, CH4) by using TDLAS (Tunable Diode Laser Absorption Spectroscopy)

under different pressure (1 atm,100 mbar,72.5 mbar,50mbar,10mbar). This work had done

by using HITRAN (HIgh Resolution TRANsmission molecular absorption data base)

database to define the density of spectral line and define the present gas by knowing the

wavenumber where absorption was happened, then  concentration of each gas in the sample

has been calculated by using optic path length inside the  multi reflections cell, deferent

pressure and intensity of spectral line.

This system was considered as LIDAR (Light Detection And Ringing) in- situe for gas

detection and concentration measuring.

 

Downloads

Published

2019-07-03

How to Cite

1.
Dayob N, Said J, mayya S. Study of Earth atmosphere components by Laser Spectroscopy. TUJ-BA [Internet]. 2019Jul.3 [cited 2025Apr.6];41(3). Available from: https://journal.tishreen.edu.sy/index.php/bassnc/article/view/8830

Issue

Vol. 41 No. 3 (2019): العلوم الأساسية

Section

Articles

License

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

The authors retain the copyright and grant the right to publish in the magazine for the first time with the transfer of the commercial right to the Tishreen University Journal -Basic Sciences Series  

 Under a CC BY- NC-SA 04 license that allows others to share the work with of the work's authorship and initial publication in this journal. Authors can use a copy of their articles in their scientific activity, and on their scientific websites, provided that the place of publication is indicted in Tishreen University Journal -Basic Sciences Series .  The Readers have the right to send, print and subscribe to the initial version of the article, and the title of Tishreen University Journal -Basic Sciences Series   Publisher

 

journal uses a CC BY-NC-SA license which mean

You are free to:

  • Adapt — remix, transform, and build upon the material
  •  
  • The licensor cannot revoke these freedoms as long as you follow the license terms.

 

  • Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
  • NonCommercial — You may not use the material for commercial purposes.
  • ShareAlike — If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original.
  • No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.