TITLE

Multiwavelength technique for open-path measurements of the concentrations of atmospheric constituents

AUTHOR(S)
Liudchik, A.
PUB. DATE
July 2012
SOURCE
Journal of Applied Spectroscopy;Jul2012, Vol. 79 Issue 3, p477
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A multiwavelength technique for open-path spectrophotometric measurements of the concentrations of the principal constituents of the atmosphere is presented. It uses a standard least squares procedure to minimize deviations of the calculated optical thickness of the working path from the measured value. The novel feature of this technique is that the effects of various sources of error on the computational results are interpreted as the difference in spectra of the probe radiation propagating along the working path and a comparison path. This difference yields a systematic error that is independent of the actual concentrations. The advantage of the multiwavelength technique is that an increased number of measurement wavelengths significantly reduces the effect of the various sources of error on the results.
ACCESSION #
79824100

 

Related Articles

  • Methodology of the spectrophotometric analysis of organic mixtures: Error of estimating total analyte concentrations taking into account their sensitivity coefficients. Vershinin, V.; Brilenok, N.; Tsypko, T. // Journal of Analytical Chemistry;Jul2012, Vol. 67 Issue 7, p649 

    In estimating the total concentration of similar analytes in recalculated to the reference substance of X, different sensitivities of the photometric determinations of analytes and X result in systematic errors depending on the choice of X and sample composition. A method of prediction of this...

  • Acousto-optical alcohol meters. N. Askerov; V. Zhogun; Z. Magomedov // Measurement Techniques;Aug2009, Vol. 52 Issue 8, p884 

    The advantages of acousto-optical spectral devices are described. Optical alcohol meters, based on acoustooptical filters for measuring the volume fraction of ethyl alcohol in water-alcohol mixtures and multicomponent alcohol-containing solutions without preliminary distillation of the alcohol...

  • RUNX2 tandem repeats and the evolution of facial length in placental mammals. Pointer, Marie A; Kamilar, Jason M; Warmuth, Vera; Chester, Stephen G B; Delsuc, Frdric; Mundy, Nicholas I; Asher, Robert J; Bradley, Brenda // BMC Evolutionary Biology;2012, Vol. 12 Issue 1, p103 

    Background: When simple sequence repeats are integrated into functional genes, they can potentially act as evolutionary 'tuning knobs', supplying abundant genetic variation with minimal risk of pleiotropic deleterious effects. The genetic basis of variation in facial shape and length represents...

  • A Novel Compensation Method for Time-grating Sensor's Dynamic Measurement Error. SUN Shizheng; PENG Donglin; ZHENG Fangyan // Applied Mechanics & Materials;2014, Issue 644-650, p1278 

    In order to improve time-grating sensor's measurement accuracy, which is influenced by stability of the components, temperature and mechanical processing in precision measuring procedure. A novel compensation method based on Fourier series approach and least square is presented. With this...

  • Presenting data in such a fashion that they can be used by other scientists. Guthrie, J. // Journal of Computer-Aided Molecular Design;Sep2015, Vol. 29 Issue 9, p837 

    Data always have an experimental uncertainty, i.e. error limits within which the value is very likely to be found. Although the use of statistics is common as is the use of least squares it remains uncommon to see reported the covariance between parameters for an equation to which data have been...

  • Signal Measurement Error Analysis of the Bayesian Network of Mechanical Fault Detection. Yunxia Zhang; Ling Lan; Xiaohui Wang // Advanced Materials Research;2014, Vol. 945-949, p2183 

    Based on measurement error of observation nodes is commom in mechanical system fault detection, but the traditional denoising method has many shortcomings. This paper introduce the Gibbs sampling method, which can be used to denoise and eliminate measurement error for node discreted information....

  • Reply to 'Comments on 'Erroneous Model Field Representations in Multiple Pseudoproxy Studies: Corrections and Implications''*. Smerdon, Jason E.; Kaplan, Alexey; Amrhein, Daniel E. // Journal of Climate;May2013, Vol. 26 Issue 10, p3485 

    The commenters confirm the errors identified and discussed in Smerdon et al., which either invalidated or required the reinterpretation of quantitative results from pseudoproxy experiments presented or used in several earlier papers. These errors have a strong influence on the spatial skill...

  • ESTIMATION OF THE HORIZONTAL REFRACTION IN THE CONTROL NETWORK USING THE LEAST SQUARES METHOD AND ROBUST STATISTICAL METHODS. Bajtala, Marek; Sokol, Štefan; Fraštia, Marek; Hudecová, Ľubica // Proceedings of the International Multidisciplinary Scientific Ge;2016, Vol. 2, p255 

    Normally used procedure for the control network adjustment is the least squares method (LSM). Assuming that the random measurement errors come from the normal probability distribution, the estimates obtained using LSM are optimal (unbiased and efficient estimate). However, in real conditions...

  • Multi-frequency Phase Unwrap from Noisy Data: Adaptive Least Squares Approach. Katkovnik, Vladimir; Bioucas-Dias, José // AIP Conference Proceedings;4/15/2010, Vol. 1236 Issue 1, p472 

    Multiple frequency interferometry is, basically, a phase acquisition strategy aimed at reducing or eliminating the ambiguity of the wrapped phase observations or, equivalently, reducing or eliminating the fringe ambiguity order. In multiple frequency interferometry, the phase measurements are...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics