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Full-Text Articles in Social and Behavioral Sciences
Preliminary Validation Of Column-Averaged Volume Mixing Ratios Of Carbon Dioxide And Methane Retrieved From Gosat Short-Wavelength Infrared Spectra, David W. Griffith, G C. Toon, B Connor, R Sussmann, Thorsten Warneke, Nicholas M. Deutscher, Paul O. Wennberg, Justus Notholt, V Sherlock, J Robinson, O Uchino, C M. Roehl, I Morino, Debra Wunch, Janina Messerschmidt, Y Yoshida, M Inoue, M Rettinger
Preliminary Validation Of Column-Averaged Volume Mixing Ratios Of Carbon Dioxide And Methane Retrieved From Gosat Short-Wavelength Infrared Spectra, David W. Griffith, G C. Toon, B Connor, R Sussmann, Thorsten Warneke, Nicholas M. Deutscher, Paul O. Wennberg, Justus Notholt, V Sherlock, J Robinson, O Uchino, C M. Roehl, I Morino, Debra Wunch, Janina Messerschmidt, Y Yoshida, M Inoue, M Rettinger
Faculty of Science - Papers (Archive)
Column-averaged volume mixing ratios of carbon dioxide and methane retrieved from the Greenhouse gases Observing SATellite (GOSAT) Short-Wavelength InfraRed observation (GOSAT SWIR XCO2 and XCH4 ) were compared with the reference calibrated data obtained by ground-based high-resolution Fourier Transform Spectrometers (g-b FTSs) participating in the Total Carbon Column Observing Network (TCCON). Preliminary results are as follows: the GOSAT SWIR XCO2 and XCH4 (Version 01.xx) are biased low by 8.85 ±4.75 ppm (2.3±1.2 %) and 20.4±18.9 ppb (1.2±1.1 %), respectively. The standard deviation of the GOSAT SWIR XCO2 and XCH4 is about 1% after correcting the negative biases of XCO2 and …
Remote Sensing Of Atmospheric Trace Gases By Ground-Based Solar Fourier Transform Infrared Spectroscopy, Clare Paton-Walsh
Remote Sensing Of Atmospheric Trace Gases By Ground-Based Solar Fourier Transform Infrared Spectroscopy, Clare Paton-Walsh
Faculty of Science - Papers (Archive)
The changing composition of the earth’s atmosphere is a matter of intense scientific research as we strive to understand details of the physical and chemical mechanisms that control our climate. Fourier transform spectroscopy has been applied very successfully to the study of trace gases in the atmosphere by examining terrestrial atmospheric absorption lines in the infrared spectrum from the Sun. In fact many gases were first discovered in the atmosphere during the 1940’s from their absorption features in the infrared solar spectrum. These early optical absorption measurements of the atmosphere using the Sun as a source were made with grating …
Rotationally Resolved Infrared Spectrum Of The Na+-D2 Complex: An Experimental And Theoretical Study, Berwyck L. Poad, V Dryza, J Klos, A A. Buchachenko, E J. Bieske
Rotationally Resolved Infrared Spectrum Of The Na+-D2 Complex: An Experimental And Theoretical Study, Berwyck L. Poad, V Dryza, J Klos, A A. Buchachenko, E J. Bieske
Faculty of Science - Papers (Archive)
The infrared spectrum of mass-selected Na+-D2 complexes is recorded in the D-D stretch vibration region (2915-2972 cm−1) by detecting Na+ photofragments resulting from photo-excitation of the complexes. Analysis of the rotationally resolved spectrum confirms a T-shaped equilibrium geometry for the complex and a vibrationally averaged intermolecular bond length of 2.461 Å. The D-D stretch band centre occurs at 2944.04 cm−1, representing a −49.6 cm−1 shift from the Q1(0) transition of the free D2 molecule. Variational rovibrational energy level calculations are performed for Na+-D2 utilising an ab initio potential energy surface developed previously for investigating the Na+-H2 complex [B. L. J. …