Files in this item



application/vnd.openxmlformats-officedocument.presentationml.presentationMK12_Presentation.pptx (7MB)
PresentationMicrosoft PowerPoint 2007


application/pdfMK12_Abstract.pdf (18kB)


text/plainMK12_Abstract.txt (1kB)
AbstractText file


Title:Observations Of Dicke Narrowing And Speed-dependence In Co2 Lineshapes Near 2060nm
Author(s):Bui, Thinh Quoc
Contributor(s):Okumura, Mitchio; Rupasinghe, Priyanka; Hogan, Daniel; Sironneau, Vincent; Agata, Cygan; Long, David A.
Subject(s):Linelists, Lineshapes, Collisions
Abstract:To achieve NASA's strategic scientific mission of monitoring global atmospheric CO$_2$ at a target precision of 0.25\%, we perform laser based measurements and lineshape studies of the reference atmospheric target CO$_2$ band (20013)$\gets$(00001) centered at 2060nm to meet the precision requirements of current (ACOS/GOSAT/TCCON) and future (OCO-2/OCO-3/ASCENDS) remote sensing applications. We utilize a frequency-stabilized cavity ringdown spectrometer, (FS-CRDS), to provide high precision and high spectral resolution for probing non-Voigt lineshape features (Dicke narrowing, speed dependence) of CO$_2$ currently unaccounted for in databases like HITRAN. We discuss our results for two R-branch lines R(24) and R(30) near 2055nm, which display concurrent collisional narrowing and speed dependence effects.
Issue Date:2014-06-16
Publisher:International Symposium on Molecular Spectroscopy
Citation Info:Bui, T.Q.; Okumura, M.; Rapusinghe, P.M.; Hogan, D.; Sironneau, V.; Agata, C.; Long, D.A. OBSERVATIONS OF DICKE NARROWING AND SPEED-DEPENDENCE IN CO2 LINESHAPES NEAR 2060NM. Proceedings of the International Symposium on Molecular Spectroscopy, Urbana, IL, June 16-21, 2014. DOI: 10.15278/isms.2014.MK12
Genre:Conference Paper / Presentation
Rights Information:Copyright 2014 by the authors. Licensed under a Creative Commons Attribution 4.0 International License.
Date Available in IDEALS:2014-09-17

This item appears in the following Collection(s)

Item Statistics