EN | RU    
Scientific & Technical Literature Publishing House
Search:

Home»

Contact Us»

Journals»

News»

Preparation of Papers»

Advertising»

Feedback»

Books»

About Us»



advertisement



Instruments and Systems: Monitoring, Control, and Diagnostics

Annotation
<< Back
Remote fiber laser gas analyzer – lidar for monitoring methane in the atmosphere
G.A. AKIMOVA, V.I. GRIGORIEVSKY, YU.P. SYRICH, V.P. SADOVNIKOV, YA.A. TEZADOV, A.V. FEDENEV

The results of methane concentration measurements on extended horizontal and vertical paths in the Earth’s atmosphere are presented, wich are obtained using a laser remote gas analyzer based on a two-stage Raman amplifier with an output power of about 3 W in a quasicontinuous mode and on a linear-requency modulated laser with distributed feedback. An empirical expression of the weight function is obtained for the anomalous gas distribution with a concentration maximum at an altitude of ~ 700 meters and an anomalously low concentration at altitudes above 1000 meters. This distribution is in good agreement with the experimental data obtained for the situational plan with additional sources of methane emissions. During the measurements, a water absorption line was detected, which strongly depends on the humidity of the atmosphere and can be used to clarify weather data and the ecological situation.
Keywords: gas analyzer, Raman amplifier, laser, methane, atmosphere.


DOI: 10.25791/pribor.06.2019.691

Contacts: E-mail: vig248@ire216.msk.su

Pp. 16-22.

 Sections

«About journal

«Archive

«Thematic focus of the journal

«Formatting rules

«Stages of the review and publication

«Review process

«Editorial and Professional Ethics

«Detecting plagiarism

«Editors and Editorial Board

«News journal


 Journals
...................................
Instruments and Systems: Monitoring, Control, and Diagnostics
...................................
Instrument-Making and Automation Means. Encyclopedic Textbook
...................................
Industrial Automatic Control Systems and Controllers
...................................
Ecological Systems and Devices
...................................
Aerospace Instrument-Making
...................................
Engineering Physics
...................................
History of Science and Engineering
...................................
Music and Time
...................................
Note Album
...................................
Musicology
...................................
Universal History
...................................
Directory of engineer
...................................
Applied Physics and Mathematics
...................................
News Academy of Engineering Sciences A.M. Prokhorov
...................................

Last news:

Выставки по автоматизации и электронике «ПТА-Урал 2018» и «Электроника-Урал 2018» состоятся в Екатеринбурге

Открыта электронная регистрация на выставку Дефектоскопия / NDT St. Petersburg

Открыта регистрация на 9-ю Международную научно-практическую конференцию «Строительство и ремонт скважин — 2018»

ExpoElectronica и ElectronTechExpo 2018: рост площади экспозиции на 19% и новые формы контент-программы

Тематика и состав экспозиции РЭП на выставке "ChipEXPO - 2018"

   Rambler's Top100 Rambler's Top100         


    Management system developed by: ananskikh.ru
© Publishing House "NAUCHTEKHLITIZDAT", 2005-2024